100 to 200 Amp Electrical Service Upgrade Guide LA

Introduction

If your Los Angeles home was built before 1980, there's a good chance it has 100-amp electrical service—a capacity that was perfectly adequate when homes had fewer electrical demands. Today, with electric vehicle chargers, central air conditioning, modern appliances, and whole-home automation systems, that 100-amp service is often pushed to its limits or beyond. When your home needs more electrical capacity than your current service can safely provide, a service upgrade becomes necessary.

At Shaffer Construction, we've helped thousands of Los Angeles homeowners upgrade from 100-amp to 200-amp electrical service, navigating the complex process of permits, utility coordination, and professional installation. This comprehensive guide will help you understand the difference between a service upgrade and a panel upgrade, recognize when you need more capacity, understand the upgrade process specific to Los Angeles, and plan for costs and timelines. Whether you're experiencing electrical issues, planning major home improvements, or preparing to add an EV charger, understanding electrical service upgrades is essential for Los Angeles homeowners.

Understanding Electrical Service vs. Panel Upgrade

Before diving into the upgrade process, it's important to understand the distinction between an electrical service upgrade and a panel upgrade, as these terms are often confused but represent different scopes of work.

Your home's electrical service refers to the total amount of electricity that flows from the utility company to your property. This capacity is measured in amperes (amps) and determines the maximum electrical load your home can handle at any given time. The service includes the utility's service drop (the wires from the transformer to your home), the meter socket and electric meter, the service entrance conductors running from the meter to your main panel, and the main disconnect breaker that controls power to your entire home. When you upgrade your electrical service, you're increasing this total capacity—typically from 100 amps to 200 amps.

An electrical panel upgrade, on the other hand, refers specifically to replacing your breaker box or panel while maintaining the same service capacity. You might upgrade your panel to gain more circuit positions for additional circuits, replace an outdated or unsafe panel like Federal Pacific or Zinsco brands, install modern safety features like AFCI and GFCI protection, or improve circuit organization and labeling. Panel upgrades are important, but they don't increase your home's total electrical capacity unless combined with a service upgrade.

Most homeowners who need more electrical capacity require both a service upgrade and a panel upgrade together. The new 200-amp service from LADWP requires a compatible 200-amp panel, new meter socket rated for higher amperage, larger service entrance conductors to handle increased current, and upgraded main disconnect breaker. Shaffer Construction handles both aspects as a complete project, ensuring all components work together safely and meet current Los Angeles building codes.

Understanding this distinction helps when discussing your project with electricians and reviewing estimates. A service upgrade is a more comprehensive project that involves coordination with LADWP and typically costs more than a simple panel replacement, but it provides the increased capacity that most Los Angeles homeowners actually need for modern electrical demands.

Why 100-Amp Service Is Inadequate for Modern Homes

When 100-amp electrical service became standard in the mid-20th century, homes had dramatically different electrical demands. Understanding why this capacity struggles to meet modern needs helps explain why upgrades have become so common in Los Angeles.

A 100-amp service at 240 volts provides 24,000 watts of total capacity. While this sounds substantial, consider the electrical loads in a typical modern Los Angeles home. Central air conditioning can demand 3,000 to 5,000 watts during operation, particularly during hot summer months when systems run extensively. An electric vehicle charger typically requires 7,200 to 9,600 watts for Level 2 charging speeds. Electric water heaters use 4,000 to 5,500 watts, and electric ranges demand 8,000 to 12,000 watts at full operation. Pool pumps and equipment add 1,500 to 3,000 watts, while home offices with computers, monitors, and equipment can easily consume 1,000 to 2,000 watts.

When you add these major loads to baseline consumption from lighting, televisions, kitchen appliances, and other devices throughout your home, you can easily approach or exceed 100-amp capacity. The problem intensifies when multiple high-draw appliances operate simultaneously—imagine your air conditioner running on a hot August afternoon while you're cooking dinner on an electric range, running the dishwasher, and your EV is charging in the garage. This combination can easily exceed 100-amp service capacity, causing breakers to trip or, worse, overloading your electrical system in unsafe ways.

The National Electrical Code requires that continuous loads (those operating for three hours or more) be calculated at 125% of their actual draw for safety margins. This means your 100-amp service should only support about 80 amps of continuous load to operate safely within code requirements. When you factor in this safety margin, available capacity shrinks further, making 100-amp service inadequate for most modern Los Angeles homes.

Furthermore, Los Angeles building codes have evolved to require dedicated circuits for many appliances and systems. Modern kitchens require multiple dedicated circuits for refrigerators, dishwashers, garbage disposals, and countertop appliances. Bathrooms need GFCI-protected circuits, and bedrooms require AFCI-protected circuits. These code requirements mean homes need more circuit positions than older 100-amp panels typically provide, often necessitating both service and panel upgrades to meet current standards.

Signs You Need an Electrical Service Upgrade

Several warning signs indicate your Los Angeles home needs more electrical capacity than your current service provides. Recognizing these indicators helps you address capacity issues before they create safety hazards or prevent you from making desired home improvements.

Frequent circuit breaker trips, especially when running multiple appliances simultaneously, suggest your electrical system is operating at or beyond capacity. While occasional breaker trips when you accidentally overload a circuit are normal, if you regularly experience trips when your air conditioner kicks on while other appliances are running, or if you can't use certain combinations of appliances without losing power, your service is likely inadequate. This is particularly common in Los Angeles during summer months when air conditioning adds significant continuous load.

Dimming or flickering lights when large appliances start operating indicate voltage drops from insufficient capacity. If your lights dim noticeably when your air conditioner compressor starts, your refrigerator cycles on, or your electric dryer begins heating, your electrical system is struggling to maintain consistent voltage under load. This not only creates annoying light fluctuations but can also damage sensitive electronics and shorten appliance lifespans.

Planning to add an electric vehicle charger is one of the most common reasons Los Angeles homeowners discover they need service upgrades. A typical Level 2 EV charger requires a dedicated 40 to 50-amp circuit, which represents a substantial portion of a 100-amp service's capacity. Most homes with 100-amp service don't have enough spare capacity to safely support an EV charger alongside existing loads. Before purchasing an EV, it's wise to have a licensed electrician evaluate whether your current service can accommodate a charger or if an upgrade will be necessary.

Home renovations or additions that increase electrical demands often trigger service upgrade requirements. Kitchen remodels typically add appliances, lighting, and dedicated circuits that increase total load. Room additions expand your home's square footage and associated electrical needs. Adding swimming pools or spas introduces major electrical loads for pumps, heaters, and control systems. Converting gas appliances to electric—increasingly common as Los Angeles moves toward building electrification—can dramatically increase electrical demand. Before starting major renovations, a professional electrical load calculation determines whether your existing service can support the planned improvements or if an upgrade should be included in your project scope.

Selling your home can reveal service upgrade needs, as home inspectors frequently identify inadequate electrical capacity as a concern. Buyers increasingly expect homes to have 200-amp service, particularly if they plan to install EV chargers or make their own improvements. Having outdated 100-amp service can become a negotiating point that reduces your sale price or requires you to complete the upgrade as a condition of sale. Proactively upgrading before listing can make your home more attractive to buyers and potentially increase sale value.

Finally, if your home still uses a fuse box rather than circuit breakers, or if you have an obsolete panel brand like Federal Pacific Electric, Zinsco, or Pushmatic, you should upgrade regardless of capacity concerns. These outdated systems don't meet current safety standards and should be replaced to protect your home and family.

100-Amp vs. 200-Amp Service: Detailed Comparison

Understanding the practical differences between 100-amp and 200-amp electrical service helps you appreciate the benefits of upgrading and make informed decisions about your home's electrical infrastructure.

Total capacity represents the most obvious difference. A 100-amp service at 240 volts provides 24,000 watts of total capacity, while 200-amp service delivers 48,000 watts—exactly double the capacity. This additional capacity doesn't mean you'll use twice as much electricity or pay double on your electric bill. Rather, it means your home can safely support twice as many appliances and systems operating simultaneously without overloading the electrical system.

Regarding appliance support, a 100-amp service can typically support a modest central air conditioning system, either an electric or gas range (electric ranges strain capacity), a standard electric water heater (or preferably gas), basic lighting and outlets throughout the home, and one or two major appliances running simultaneously. However, adding an EV charger to this mix becomes problematic, and you'll need to be conscious of not running too many high-draw items at once. In contrast, 200-amp service comfortably supports all of the above plus one or two Level 2 EV chargers, pool and spa equipment, home theater and office systems, smart home automation, multiple appliances operating simultaneously, and substantial capacity remaining for future additions. Most Los Angeles homeowners find 200-amp service provides ample capacity without needing to think constantly about load management.

Panel size and circuit capacity differ significantly between the two service levels. Most 100-amp panels have 20 to 30 circuit positions, which may seem adequate but often proves limiting when you account for required dedicated circuits for major appliances, AFCI requirements for bedrooms and living areas, GFCI requirements for bathrooms, kitchens, and outdoor areas, and separate circuits for home offices, entertainment systems, and other modern needs. Modern 200-amp panels typically offer 40 to 50 circuit positions, providing much more flexibility for present and future circuit needs. This additional space means you're unlikely to run out of breaker positions when adding circuits for remodels or new appliances.

Future-proofing is a significant consideration often overlooked when evaluating service upgrades. As Los Angeles moves toward building electrification and encourages replacement of gas appliances with electric alternatives, homes will need increasing electrical capacity. Trends pointing toward higher electrical demands include electric vehicle adoption continuing to grow rapidly, potential for second EV in the household requiring additional charging capacity, heat pump technology for heating and cooling becoming more common, induction cooking replacing gas ranges, electric heat pump water heaters replacing gas models, and home battery storage systems for solar integration and backup power. Upgrading to 200-amp service now ensures your home can accommodate these trends without requiring another expensive upgrade in the future.

Resale value implications favor 200-amp service strongly. Home buyers increasingly expect modern electrical capacity, and 100-amp service can be perceived as outdated or inadequate. Homes with 200-amp service are more attractive to buyers planning to install EV chargers, complete renovations, or add modern appliances. While you may not recoup 100% of upgrade costs in increased sale price, you'll avoid the price reductions and negotiating challenges that come with outdated electrical service. Real estate agents frequently recommend service upgrades as one of the most valuable pre-sale improvements for older Los Angeles homes.

The Complete Service Upgrade Process in Los Angeles

Understanding each step of the electrical service upgrade process helps you know what to expect and plan appropriately for timeline and coordination requirements. Shaffer Construction manages this entire process on your behalf, but understanding the steps provides helpful context.

The process begins with a professional electrical assessment and load calculation. A licensed electrician inspects your existing electrical service, panel, and overall system condition. We perform detailed load calculations to determine your home's current and projected electrical demands, accounting for existing appliances and systems, planned additions like EV chargers or pool equipment, potential future needs to ensure adequate capacity, and code requirements for safety margins. This calculation determines whether 200-amp service is sufficient or if you might benefit from 400-amp service, though 200 amps meets the needs of most Los Angeles homes. The assessment also identifies any existing electrical code violations that should be corrected during the upgrade and evaluates the best location for your new panel if relocation is beneficial.

Next comes permit application with the Los Angeles Department of Building and Safety (LADBS). All electrical service upgrades in Los Angeles require permits—no exceptions. Licensed electrical contractors like Shaffer Construction handle permit applications on your behalf, submitting detailed electrical plans showing the new service configuration, load calculations justifying the increased capacity, contractor license information and insurance documentation, and applicable permit fees (typically $300 to $600 depending on scope). LADBS reviews the application to ensure compliance with National Electrical Code and California Title 24 requirements. Permit approval typically takes one to two weeks, though timelines can vary based on city processing loads and application complexity.

Concurrent with permitting, we submit a service upgrade request to LADWP. When increasing service capacity from 100 amps to 200 amps, LADWP must upgrade their infrastructure connecting to your home. We submit your LADBS permit number, electrical plans and specifications, load calculations supporting the requested service increase, and property information. LADWP assigns your request to a service planner who reviews requirements and schedules necessary utility work. This coordination is critical and represents one of the most time-consuming aspects of service upgrades, typically adding two to six weeks to the project timeline depending on LADWP workload and any utility-side infrastructure upgrades required.

LADWP then performs necessary upgrades on their side of the meter. This may include installing a new meter socket rated for 200-amp service, upgrading the service drop from the transformer to your home if current conductors are inadequate, installing a larger transformer if neighborhood infrastructure can't support the increased load, and trenching and conduit work if you're upgrading from overhead to underground service. Importantly, LADWP typically provides the first service upgrade to a residential property at no charge—a significant value that can represent thousands of dollars of work. However, this is generally a one-time benefit, so upgrading directly to 200 amps makes more sense than upgrading to an intermediate capacity you might later outgrow.

Once LADWP completes their work and permits are approved, Shaffer Construction schedules installation. The installation process typically takes one to two days and involves temporarily disconnecting your electrical service (your power will be completely off during installation), removing your old meter socket and service entrance equipment, installing new 200-amp meter socket and service entrance conductors, mounting your new 200-amp electrical panel (either in the existing location or relocated to meet current codes), connecting all existing circuits to the new panel with appropriately sized breakers, installing required AFCI and GFCI protection per current codes, properly grounding and bonding the new system, labeling all circuits clearly for easy identification, and cleaning up and restoring the area around the installation. Throughout installation, our licensed electricians ensure all work meets National Electrical Code requirements and Los Angeles building codes.

After installation completion, we coordinate the final inspection with LADBS. A city electrical inspector visits your property to verify code compliance, checking that the panel installation meets all current requirements, service entrance conductors are properly sized and installed, grounding and bonding are correctly implemented, all required AFCI and GFCI protection is present, and workmanship meets professional standards. Once the inspector approves the installation, they sign off on your permit, officially completing the project. LADWP then reconnects your service and installs your new electric meter, and you can begin enjoying your upgraded electrical capacity.

Throughout this process, Shaffer Construction communicates regularly about progress, timeline updates, coordination with LADWP and LADBS, and when your power will be temporarily disconnected. We handle all bureaucracy and coordination so you don't have to navigate Los Angeles city departments and utility processes yourself. Our goal is making the upgrade process as seamless and stress-free as possible while ensuring perfect code compliance and professional installation quality.

LADWP Coordination and Timeline Expectations

Coordinating with the Los Angeles Department of Water and Power represents one of the most critical and time-consuming aspects of electrical service upgrades. Understanding this process and setting realistic timeline expectations prevents frustration and helps you plan accordingly.

LADWP service increase requests require specific documentation including your LADBS electrical permit number, detailed electrical plans showing the new service configuration, load calculations demonstrating need for increased capacity, and property information and account details. Shaffer Construction prepares and submits all required documentation to ensure complete and accurate applications that avoid delays from missing information or errors.

Once submitted, LADWP assigns your request to a service planner who evaluates what utility-side work is necessary. For straightforward 100-amp to 200-amp upgrades, this often involves only meter socket replacement and service connection verification. However, some upgrades require more extensive utility work including transformer upgrades if existing equipment can't support the increased load, service drop replacement if overhead conductors are undersized, trenching and conduit installation for underground service upgrades, or coordination with neighboring properties if shared utility infrastructure is affected. The service planner schedules all necessary LADWP work and provides an estimated completion timeline.

LADWP service upgrade timelines typically range from two to six weeks after request submission, though this varies considerably based on several factors. Simple upgrades requiring only meter and connection changes may be completed in two to three weeks. Projects requiring new transformer installation typically take four to six weeks. Upgrades involving trenching or underground service work can extend to six to eight weeks or longer. Service increases in areas with aging utility infrastructure may require more extensive work and longer timelines. During peak periods when LADWP has high volumes of service requests, all timelines can extend further.

A key decision point in many service upgrades is whether to maintain overhead service or upgrade to underground service. Overhead service involves electrical lines running from utility poles to your home via aerial cables. This is common in older Los Angeles neighborhoods and is generally the simpler, faster option for service upgrades. LADWP can typically upgrade overhead service more quickly since it doesn't require trenching or underground conduit work. However, overhead lines are more susceptible to damage from weather, tree branches, and accidents, and are generally considered less aesthetically pleasing.

Underground service routes electrical supply through buried conduits from utility equipment to your home. This is standard in newer developments and is increasingly preferred in older neighborhoods during upgrades. Underground service offers better aesthetics with no visible wires, improved reliability with less exposure to weather and physical damage, and increased property value in many cases. However, upgrading to underground service adds cost and complexity, requiring trenching from the property line to your home (typically $1,500 to $5,000 depending on distance and conditions), installing underground conduit and conductors, possible landscape disruption and restoration, and longer LADWP coordination timelines. Many Los Angeles homeowners find the benefits worth the additional investment, particularly in upscale neighborhoods where underground utilities are expected.

The cost implications of LADWP coordination are generally favorable for homeowners. LADWP typically performs your first residential service upgrade at no charge, including meter socket replacement, service drop upgrades for overhead service, and reasonable transformer work if needed. This is a substantial benefit that can represent $2,000 to $5,000 or more in value. However, this benefit generally applies only to your first upgrade, so it's wise to upgrade to 200 amps rather than an intermediate capacity. Additionally, extensive underground work or unusual circumstances may incur LADWP charges, though this is uncommon for standard residential upgrades. Customer-side work including your new panel, service entrance equipment, and installation labor remains your responsibility and represents the bulk of upgrade costs.

Temporary service disconnection during LADWP work typically lasts only a few hours while they install the new meter socket and make final connections. We coordinate this disconnection with our installation schedule to minimize total power outage duration. In most cases, your power is off during our installation work anyway, so LADWP's disconnection doesn't add inconvenience beyond the necessary installation period.

Costs for 100-Amp to 200-Amp Service Upgrade in Los Angeles

Understanding the complete cost picture for electrical service upgrades helps you budget appropriately and evaluate whether the investment makes sense for your situation. Costs vary based on several factors, but typical ranges help you plan financially.

For a standard 100-amp to 200-amp service upgrade in Los Angeles, total costs typically range from $3,000 to $6,000 for most residential installations. This comprehensive price includes the new 200-amp electrical panel and all circuit breakers, new meter socket rated for 200-amp service, service entrance conductors and disconnects, labor for complete installation (typically one to two days), permit fees for LADBS (usually $300 to $600), coordination with LADWP including all necessary paperwork and follow-up, final inspection coordination and any required corrections, and cleanup and site restoration. This represents a turnkey price where Shaffer Construction handles every aspect from initial assessment through final sign-off.

Several factors influence where your specific project falls within this cost range or potentially exceeds it. Panel location and accessibility significantly affect labor costs—panels in easily accessible garages or exterior locations cost less to upgrade than panels in finished basements, tight crawl spaces, or locations requiring significant access work. Distance from the street to your electrical service entrance impacts costs, particularly for underground installations or situations requiring service entrance relocation. If your upgrade requires the panel to be moved to meet current code requirements for clearances and accessibility, relocation adds $1,000 to $3,000 to base costs. The number of existing circuits affects costs since panels with many circuits require more labor to disconnect, reconnect, and test all circuits in the new panel.

Additional work discovered during installation can add costs beyond the initial estimate. Correction of existing code violations found during inspection—such as improper grounding, outdated wiring methods, or unsafe connections—must be addressed to pass final inspection. Asbestos or lead paint issues in older homes may require specialized handling if present around the electrical service area. Rot or damage to walls or structures where electrical equipment mounts necessitates repair before new equipment can be safely installed. Shaffer Construction conducts thorough initial assessments to identify potential issues upfront, but occasionally hidden problems emerge during installation. We communicate immediately about any discovered issues and required additional work before proceeding.

Underground service conversions represent a significant additional cost if you choose to upgrade from overhead to underground service during your upgrade. Trenching from the property line to your service entrance typically costs $1,500 to $5,000 depending on distance (up to 100 feet is common, longer runs cost more), soil conditions and ease of excavation, obstacles like driveways, walkways, or landscaping, depth requirements based on code and LADWP specifications, and landscape restoration after trenching. Despite these additional costs, many Los Angeles homeowners choose underground service for improved aesthetics and reliability, particularly in neighborhoods where underground utilities are the norm.

When 400-amp service makes sense, costs increase to $5,000 to $10,000 or more. Most Los Angeles homes don't require this much capacity, but it may be appropriate for large homes over 4,000 square feet, properties with multiple EV chargers planned, homes with swimming pools, spas, and extensive outdoor features, properties planning to add solar panels with battery storage systems, or homes with home gyms, workshops, or other high-demand specialized spaces. If you're on the fence, 200-amp service is usually sufficient, but if your load calculations suggest you'll approach 200-amp capacity, upgrading to 400 amps provides future-proofing and eliminates the need for another upgrade later.

Long-term value and return on investment make service upgrades worthwhile despite significant upfront costs. Benefits include dramatically improved electrical safety and reduced fire risk from overloaded systems, ability to add EV chargers, pools, renovations, and other improvements without electrical limitations, increased home resale value and marketability (modern electrical service is an attractive selling point), potential insurance premium reductions with updated electrical systems, compliance with current building codes protecting your investment, and peace of mind knowing your electrical system can safely handle your family's needs. Most Los Angeles homeowners find that service upgrades pay dividends in safety, convenience, and property value that justify the investment many times over.

When 400-Amp Service Makes More Sense

While 200-amp service meets the needs of most Los Angeles residential properties, certain situations warrant considering 400-amp service from the outset. Understanding when this higher capacity makes sense helps you avoid under-building and needing another expensive upgrade in the future.

Large homes with extensive electrical demands are prime candidates for 400-amp service. If your home exceeds 4,000 square feet, has multiple HVAC systems serving different zones, includes high-end kitchen appliances and multiple refrigeration units, features home theaters, whole-home audio systems, or extensive automation, and has dedicated spaces like home gyms, workshops, or studios with specialized equipment, then 200-amp service may prove insufficient. Calculating electrical loads for these luxury homes often reveals demands approaching or exceeding 200-amp capacity, making 400-amp service a wise choice.

Multiple electric vehicle charging stations represent one of the most common reasons Los Angeles homeowners choose 400-amp service. A single Level 2 EV charger typically requires a 40 to 50-amp dedicated circuit. If your household has two EVs requiring simultaneous charging, you're already consuming a substantial portion of 200-amp capacity before accounting for other household loads. Families planning for multiple EVs, considering future EV adoption by household members, or wanting to future-proof for inevitable electrification trends often choose 400-amp service to ensure ample charging capacity alongside all other household needs.

Swimming pools, spas, and extensive outdoor living spaces create significant electrical loads. Pool pumps, heaters, cleaning systems, and automation can consume 40 to 60 amps or more. Adding spa equipment, outdoor kitchens with refrigerators and grills, landscape and architectural lighting systems, and outdoor entertainment systems quickly accumulates load. Luxury Los Angeles properties with resort-style outdoor amenities frequently require 400-amp service to support these features while maintaining adequate capacity for interior loads.

Solar panel installations with battery storage systems are becoming increasingly popular in Los Angeles, particularly with evolving utility rate structures and interest in energy independence. While solar panels themselves don't increase your electrical service requirements (they generate rather than consume power), battery storage systems like Tesla Powerwall or similar solutions require dedicated high-amperage circuits. Homes with substantial solar arrays and battery storage, particularly those approaching net-zero energy goals, often benefit from 400-amp service to accommodate all electrical systems including backup power capabilities during grid outages.

All-electric homes without any gas service represent another scenario where 400-amp service often makes sense. As Los Angeles gradually moves toward building electrification and some newer developments prohibit gas service entirely, homes rely exclusively on electricity for heating (heat pumps), water heating (heat pump water heaters), cooking (induction ranges), and clothes drying. The cumulative load of all-electric homes can easily approach 200-amp capacity, making 400-amp service prudent for comfort and reliability.

From a future-proofing perspective, 400-amp service provides maximum flexibility for evolving needs and technologies. While it costs more upfront than 200-amp service—typically $5,000 to $10,000 versus $3,000 to $6,000—it eliminates any concern about electrical capacity for decades to come. For homeowners planning to stay in their homes long-term and anticipating various improvements and additions over the years, 400-amp service can be viewed as a one-time investment that prevents multiple future upgrades. If your load calculations suggest you'll use 150 amps or more of a 200-amp service, seriously consider upgrading to 400 amps instead.

Benefits Beyond Increased Capacity

While increased electrical capacity represents the primary reason for service upgrades, numerous additional benefits make these projects valuable investments in your home's infrastructure and your family's safety.

Enhanced electrical safety is perhaps the most important benefit beyond capacity. Older electrical systems operating at or beyond their designed capacity create fire hazards from overheated conductors, overloaded circuits, and stressed connections. Modern 200-amp or 400-amp service with properly sized equipment operates well within safe parameters, dramatically reducing fire risk. Additionally, new installations include current safety technologies like AFCI protection that detects dangerous arc faults and prevents electrical fires, GFCI protection in all required locations preventing dangerous shocks, proper grounding and bonding protecting against electrical faults, and modern circuit breakers that reliably trip when needed, unlike obsolete panels with known failures. These safety improvements protect your family and property far beyond what upgraded capacity alone provides.

Code compliance brings peace of mind and practical benefits. Electrical service upgrades bring your home's main electrical infrastructure into compliance with current National Electrical Code and California Title 24 requirements. This compliance is important when selling your home, as buyers and their inspectors look favorably on modern, code-compliant electrical systems. It also satisfies insurance company requirements, as many insurers prefer or require updated electrical systems for coverage, and ensures proper inspection and permitting documentation that protects property value. Knowing your electrical system meets current professional standards provides confidence that your home is safe and properly maintained.

Improved home value and marketability make electrical service upgrades financially beneficial beyond their utility. Real estate professionals consistently identify modern electrical service as a significant selling point for Los Angeles homes. Buyers appreciate not having to invest in expensive electrical upgrades after purchase, homes with 200-amp or 400-amp service appeal to EV owners and tech-savvy buyers, and modern electrical infrastructure suggests overall good home maintenance and upgrades. While you may not recoup 100% of upgrade costs in direct sale price increases, you'll avoid the price reductions that come with outdated 100-amp service and potential deal complications when buyers' inspectors identify inadequate capacity.

Renovation and addition flexibility becomes much easier with upgraded electrical service. Once you have 200-amp or 400-amp service, future home improvements don't face electrical capacity constraints. You can remodel kitchens without worrying if electrical capacity exists for new appliances, add bathrooms knowing circuits are available for required GFCI protection, finish basements or convert garages with adequate power for new living spaces, install pools, spas, or outdoor kitchens without electrical limitations, and add smart home systems, security systems, or automation without capacity concerns. This flexibility makes your home more adaptable to your changing needs and more enjoyable to live in as you make improvements over time.

Energy efficiency opportunities often emerge during electrical service upgrades. While upgrading service itself doesn't reduce energy consumption, the project creates opportunities to implement efficiency improvements like LED lighting throughout the home when circuits are being updated, installing programmable thermostats and smart controls for HVAC systems, adding whole-home surge protection that protects electronics and appliances, and implementing monitoring systems that help you understand and optimize energy usage. Many Los Angeles homeowners use service upgrades as an opportunity to simultaneously implement energy efficiency measures that reduce operating costs and environmental impact.

Frequently Asked Questions

What's the difference between a service upgrade and a panel upgrade?

A service upgrade increases the total amount of electricity that can flow to your home from the utility, typically from 100 amps to 200 amps or 400 amps. This involves coordination with LADWP and upgrading the meter socket, service entrance conductors, and main panel. A panel upgrade simply replaces your breaker box while maintaining the same service capacity—you might do this to add more circuit positions, replace an unsafe panel, or add modern safety features. Most homeowners needing more capacity require both a service upgrade and a panel upgrade together. Shaffer Construction can assess your specific situation and recommend whether you need one or both.

How long does a 100-amp to 200-amp service upgrade take in Los Angeles?

From initial consultation to final completion, the process typically takes four to eight weeks. This includes one to two weeks for permit approval from LADBS, two to six weeks for LADWP coordination and utility-side upgrades, one to two days for actual installation when your power will be off, and inspection scheduling and final sign-off. The LADWP coordination represents the longest and most variable part of the timeline. Shaffer Construction manages all scheduling and coordination to complete your upgrade as quickly as Los Angeles city and utility processes allow.

How much does it cost to upgrade from 100 amps to 200 amps?

Typical costs range from $3,000 to $6,000 for a standard residential service upgrade in Los Angeles. This includes the new 200-amp panel and equipment, all installation labor, permits, LADWP coordination, and final inspection. Factors that affect cost include panel location and accessibility, distance from the street to your service, whether the panel needs relocation, and any additional electrical work discovered during installation. Underground service conversions add $1,500 to $5,000 for trenching and burial. LADWP typically performs your first service upgrade at no charge, so customer costs cover only the work on your side of the meter. Shaffer Construction provides detailed written estimates explaining all costs before you commit to the project.

Do I need to upgrade my electrical service to install an EV charger?

It depends on your current service capacity and existing electrical loads. Many homes with 100-amp service don't have sufficient spare capacity for a Level 2 EV charger, particularly if you have central air conditioning and other major electrical loads. Homes with 200-amp service usually can accommodate an EV charger without service upgrades, though this should be verified through a professional load calculation. The only way to know definitively is to have a licensed electrician perform a load calculation to determine your available capacity. Shaffer Construction provides free assessments and load calculations for Los Angeles homeowners considering EV charger installation.

Does LADWP charge for service upgrades?

LADWP typically performs your first residential service upgrade at no charge to the homeowner. This includes installing a new meter socket, upgrading the service drop for overhead service, installing or upgrading transformers if needed, and making all utility-side connections. This represents significant value that can easily be $2,000 to $5,000 or more of utility work. However, this benefit generally applies only to your first upgrade, so it makes sense to upgrade to 200 amps rather than an intermediate capacity you might later outgrow. Extensive underground work or unusual circumstances may incur charges, but this is uncommon for standard residential upgrades. You remain responsible for all work on your side of the meter, including your new panel, service entrance equipment, and professional installation.

Can I upgrade my electrical service myself?

No. California law requires licensed electricians to perform all electrical service work, and LADWP will not coordinate service increases without proper permits and licensed contractor involvement. Attempting to upgrade your own service is illegal, extremely dangerous, and will void any permits and insurance coverage. Service upgrades involve working with high-voltage electricity that can cause severe injury or death if improperly handled. LADBS won't issue permits to unlicensed individuals for service upgrades. Always hire a licensed, insured electrical contractor like Shaffer Construction for this critical work. The safety risks and legal requirements make professional installation absolutely necessary.

Will upgrading my electrical service increase my electric bill?

No. Upgrading your electrical service capacity doesn't increase your electricity consumption or your bill. You pay only for the electricity you actually use, not for your service capacity. Think of it like upgrading from a narrow pipe to a wider pipe for water—the pipe size doesn't determine how much water you use, just how much can flow when you need it. Your electric bill is based on kilowatt-hours consumed, which depends on your actual usage of lights, appliances, and systems. The larger service simply ensures you can safely operate everything you need without overloading your electrical system. In some cases, the more efficient operation enabled by adequate capacity can actually reduce costs by preventing inefficient voltage drops and allowing optimization of when high-demand appliances operate.

Should I upgrade to 200 amps or 400 amps?

For most Los Angeles homes, 200-amp service provides ample capacity for current and future needs including EV chargers, pools, renovations, and modern appliances. Consider 400-amp service if your home exceeds 4,000 square feet, you plan to install multiple EV chargers, you have or plan extensive outdoor amenities like pools and outdoor kitchens, you're planning solar panels with battery storage, or your home is all-electric with no gas service. A professional load calculation provides definitive guidance. If the calculation shows you'll use less than 150 amps of a 200-amp service, 200 amps is likely sufficient. If you'll approach or exceed 150 amps, 400-amp service provides better future-proofing. Shaffer Construction can perform load calculations and provide honest recommendations based on your specific situation and plans.

Conclusion

Upgrading your Los Angeles home's electrical service from 100 amps to 200 amps represents a significant investment in safety, functionality, and property value. As our homes increasingly rely on electricity for transportation, climate control, cooking, and entertainment, adequate electrical capacity has shifted from luxury to necessity. Whether you're experiencing warning signs like frequent breaker trips and dimming lights, planning to add an electric vehicle charger or other major appliances, completing home renovations, or simply want the peace of mind that comes with modern, code-compliant electrical infrastructure, a service upgrade provides benefits that extend far beyond increased capacity.

The process of upgrading electrical service in Los Angeles involves careful coordination between licensed electrical contractors, the Los Angeles Department of Building and Safety for permitting, and LADWP for utility-side upgrades. While this complexity might seem daunting, working with experienced professionals like Shaffer Construction ensures every step is handled properly and efficiently. We manage all permitting, coordinate with LADWP throughout the process, perform professional installation that meets or exceeds all code requirements, and ensure final inspection approval so your upgrade is completely legal and properly documented.

Understanding the difference between service upgrades and panel upgrades, recognizing when your home needs increased capacity, knowing the complete process from assessment through final inspection, and planning for realistic costs and timelines empowers you to make informed decisions about your home's electrical infrastructure. Most importantly, completing a proper service upgrade through licensed professionals ensures your family's safety and your home's electrical reliability for decades to come.

Don't wait until electrical capacity issues prevent you from making desired improvements or create safety hazards. If your Los Angeles home has 100-amp service, frequent electrical problems, or you're planning additions that increase electrical demand, now is the time to evaluate whether a service upgrade makes sense. Contact Shaffer Construction at 323-642-8509 or email hello@shaffercon.com to schedule your comprehensive electrical assessment. Our licensed electricians will evaluate your current service, perform professional load calculations, explain your options clearly, provide detailed written estimates with no hidden fees, and handle all permitting and LADWP coordination. Visit www.shaffercon.com to learn more about our comprehensive residential electrical services throughout Los Angeles. Your home's electrical safety and capacity are too important to leave to chance—trust the experienced professionals at Shaffer Construction for your electrical service upgrade needs.