Commercial Electrical Panel Upgrades in Glendale
When your Glendale storefront, office, or industrial space is running on outdated electrical gear, it's not just inconvenient—it's risky and costly. Shaffer Construction, Inc. delivers code-compliant, fast-turnaround commercial electrical panel upgrades tailored to Brand Boulevard retail, San Fernando Road warehouses, and everything in between. We streamline permitting with the City of Glendale and coordinate directly with Glendale Water & Power to minimize downtime. From the Americana at Brand and Glendale Galleria to creative offices near the Walt Disney Imagineering campus, local businesses are adding HVAC, IT equipment, commercial kitchens, and EV chargers—loads your legacy panel may not support. Our team right-sizes your service, performs precise load calculations, and installs premium 200–400 amp gear designed for longevity in Glendale's hot summers. Expect clear communication, tight scheduling, and a clean, safe jobsite.
Our Work



Benefits
Upgrading for the Future
We design panel upgrades with expansion in mind—extra breaker spaces, higher main capacity, and smart metering to track real-time usage across tenants or departments. Our team integrates networked meters (Eaton/Power Xpert, Square D PowerLogic), code-required surge protective devices, and provisions for future EV charging or solar interconnection. We size conductors and conduit pathways to support scalable loads, and we employ load management controls where appropriate to reduce peak demand without sacrificing performance.
Securing Permits and Compliance
Shaffer Construction handles permitting, plan sets, and inspections with the City of Glendale Building and Safety Division, coordinating directly with Glendale Water & Power for safe cut-overs. We build to the current California Electrical Code, Title 24 energy standards, and applicable Glendale amendments. Our designs account for SCCR labeling, AIC rating verification, grounding electrode systems, and arc energy reduction measures when required, ensuring your upgrade passes inspection and performs safely.
Expert Craftsmanship Guaranteed
We specify premium 200–400 amp main panels with copper bus bars, bolt-on breakers, THHN/THWN-2 copper conductors in EMT or rigid steel conduit, and NEMA-rated enclosures suited to Glendale’s heat. Every termination is torqued to manufacturer specs with recorded torque logs, and panels are neatly labeled per NEC 110.22. We stage clean, safe work areas, practice NFPA 70E lockout/tagout, and perform infrared scans after energization to validate connections and identify hotspots before we close out the job.
Custom Solutions for Your Business
Every property is different. We start with on-site assessments, demand/load calculations, and a review of your business growth plans—new kitchen equipment, added HVAC, servers, or EV chargers. When helpful, we perform data logging to capture peak demand and phasing issues. Our drawings detail panel schedules, conductor sizing, grounding/bonding methods, clearances, and meter locations that respect storefront aesthetics and historic constraints. We also phase work off-hours to keep your doors open.
What We Offer
We offer turnkey commercial panel solutions for Glendale businesses, tailored to building age, tenant mix, and future loads. Common scope items include:
Frequently Asked Questions
Do I need a permit in Glendale for a commercial panel upgrade?+
Yes. Commercial panel upgrades require an electrical permit through the City of Glendale Building and Safety Division, typically with plan review. We handle the application, drawings, and inspections, and coordinate with Glendale Water & Power for disconnect/reconnect. Most permits are processed in about 2–3 weeks depending on scope.
How long will my business be without power during the upgrade?+
For standard upgrades, the installation and cut-over take 1–2 days, with the main outage usually limited to a 4–8 hour window. We schedule after-hours or weekend work to minimize disruption, and can provide temporary power for critical loads like refrigeration, POS, or servers when needed.
What panel size does my Glendale business need?+
It depends on existing and future loads. Small retail or offices often use 200–225A mains; restaurants, medical suites, or EV-ready workplaces may need 300–400A. We perform load calculations and, when useful, short-term data logging to capture peak demand before recommending the right capacity and breaker layout.
Can you accommodate historic storefronts near the Alex Theatre or downtown?+
Yes. We design solutions that respect historic facades and meet Glendale’s requirements. That can mean creative placement of meter/main equipment, paint-matched enclosures, and coordinated reviews. We manage submittals and inspections to keep the project moving while preserving street-facing aesthetics.
Will my upgraded panel support EV chargers for employees or customers?+
We can design for immediate chargers or make the panel EV-ready with spare capacity, conduit pathways, and load management. Our team aligns with CALGreen and utility considerations, helping you plan the right number of ports and manage demand so chargers don’t overload your service.
What brands and materials do you install?+
We typically install Eaton, Siemens, or Square D commercial-grade gear with copper bus bars, bolt-on breakers, THHN/THWN-2 copper conductors in EMT or rigid conduit, and code-compliant grounding systems. We also integrate surge protection, smart metering, and proper labeling for long-term reliability.
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