Commercial Whole‑Building Surge Protection in Glendale

Keep your Glendale operation online and protected with whole\u2011building surge protection designed for the realities of the Verdugo foothills and busy corridors like Brand Boulevard. From the Americana at Brand to the auto dealers on Brand and the medical offices near Adventist Health Glendale, businesses here rely on sensitive electronics that can be knocked out by a single transient surge. Shaffer Construction, Inc. engineers and installs commercial\u2011grade surge protective devices (SPDs) at the service and distribution levels to shield POS systems, servers, HVAC controls, lighting, elevators, and EV chargers from damaging spikes. We pair code\u2011compliant grounding upgrades with UL\u2011listed SPDs sized to your service, so you get reliable protection without downtime. Most installations are completed in a half day, with clear pricing and permits handled for you.

Licensed & Insured
A, B & C10 Contractor
25+ Years
Experience in LA
1000+ Projects
Successfully Completed

Our Work

Tesla Supercharger station with solar canopy installation by Shaffer Construction electrical contractorsCommercial EV charging infrastructure with electrical panels and utility meters installed by licensed electriciansTesla Powerwall battery storage system professionally installed on residential home exterior

Benefits

Power for the Future

We design surge protection that scales with your facility. Our UL 1449 4th Edition Type 1/2 SPDs are matched to 120/208Y, 277/480Y, and 240V high‑leg delta systems and can integrate with your building management system via dry contacts or Modbus for alarm/monitoring. We apply IEEE C62.41 surge categories and cascading strategies—service entrance, distribution, and point‑of‑use—to protect mission‑critical loads. Modular SPDs with replaceable cartridges and surge counters make maintenance simple as your Glendale property evolves with EV charging, solar PV, and future tenant improvements.

Certified Installations and Compliance

Shaffer Construction manages permitting end‑to‑end with Glendale’s Building and Safety Division, ensuring smooth inspections and minimal disruption. Our installations comply with the California Electrical Code, Glendale amendments, and utility coordination with GWP when service access is needed. We size SPDs to available fault current, short‑circuit current ratings, and nominal discharge current, and verify grounding/bonding per NEC 250. Documentation includes cut sheets, one‑line updates, and as‑builts—so property managers, insurers, and inspectors get clear, code‑compliant records.

Workmanship You Can Count On

We use commercial‑grade SPDs from leading manufacturers and install them with copper conductors, tight lay and short lead lengths to minimize let‑through voltage. Where needed, we add listed ground rods, irreversible compression lugs, and bonding jumpers to water and gas piping. Panel labeling, torqueing to spec, and infrared scans are part of our quality control. The result: a neat, serviceable installation that performs under real‑world conditions and passes inspection the first time.

Custom-Engineered Solutions

Every Glendale building is different. We begin with a load inventory and service review, identify sensitive equipment (e.g., POS, servers, elevators, HVAC VFDs), and test grounding impedance. We then select UL‑listed SPDs for your system voltage and configuration, calculate kA ratings for service entrance and downstream panels, and design a cascading strategy. You receive a clear scope, drawings/one‑line updates, and a schedule that works around your operating hours to minimize downtime.

What We Offer

Service‑entrance UL 1449 Type 1/2 SPD installation matched to 120/208Y, 277/480Y, or 240V high‑leg delta
Cascaded protection strategy for main switchboards, distribution panels, and critical sub‑panels
Grounding electrode assessment with clamp‑on testing; installation of additional listed ground rods and clamps
Bonding of metallic systems (water, gas, rebar/Ufer) per NEC 250 and Glendale amendments
Short lead‑length routing, twisted conductor pairs, and bonded metallic raceways to minimize let‑through voltage
Integration of SPD alarm contacts with BMS/EMS for remote monitoring and alerts
Surge counters and visual status indicators for maintenance tracking
Protection for data/communication lines and low‑voltage systems where required
Coordination with GWP for safe service shutdowns and re‑energization
Thermographic (IR) scan of panels post‑install to verify terminations and detect anomalies
Panel schedule updates, labeling, one‑line diagram revisions, and O&M documentation
Annual inspection and testing program with cartridge replacement planning for modular SPDs
Protection strategies for EV charging infrastructure and solar PV interconnections
Remediation of code violations related to grounding, bonding, and SPD SCCR mismatches

Frequently Asked Questions

Do I need a permit in Glendale for surge protection at my building?+

Yes. The City of Glendale Building and Safety Division requires a permit for installing SPDs at service or distribution equipment and for grounding upgrades. We handle the application, submittals, and inspection coordination. Most permits are issued within about 2–3 weeks, depending on City workload and whether plan review is required.

Will installation disrupt my business operations?+

We typically complete installations in a half day with only brief, scheduled outages while we tie in the SPD and verify grounding. For retail and medical offices, we plan work during off‑hours or low‑traffic periods, coordinate with GWP if service access is needed, and restore power in phases to minimize downtime.

How does surge protection help during Glendale’s summer heat waves?+

High HVAC loads can cause utility switching and internal transients from VFDs and compressors. SPDs clamp these spikes, protecting LED drivers, control boards, and servers from cumulative damage. While SPDs don’t correct sags or brownouts, they prevent the damaging over‑voltage events that often accompany switching and restorations after momentary outages.

Is surge protection compatible with solar PV and EV chargers?+

Yes. We account for PV inverters and EV chargers in the design, often adding SPDs at both the service and the PV/EV sub‑panels. Proper grounding and bonding are critical to avoid nuisance tripping and ensure the SPD’s let‑through voltage stays within equipment tolerances.

What if my building has 240V high‑leg delta service?+

Many older commercial buildings in Glendale do. We select SPDs specifically rated for high‑leg delta configurations and verify correct connection points. We also review neutral‑ground bonding and grounding electrode effectiveness to ensure protection performs as intended.

Ready to Get Started?

Contact us today for a free consultation and quote on your electrical project!

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