Commercial Complete Electrical Rewiring in Glendale
From Brand Boulevard storefronts and office suites near the Americana at Brand to light industrial spaces along San Fernando Road, your Glendale business relies on safe, modern power. Shaffer Construction, Inc. delivers end\u2011to\u2011end commercial complete electrical rewiring that minimizes downtime and future\u2011proofs your property for growth. We coordinate with Glendale Water & Power, handle permits with the City of Glendale Building and Safety Division, and sequence work to keep your doors open. Whether you're upgrading an older mid\u2011century strip center, converting a space for a new tenant, or solving chronic breaker trips in a creative office near the Grand Central Creative Campus, we design, permit, and install a code\u2011compliant system that's built for today's HVAC, lighting controls, POS, IT, and EV charging demands.
Our Work



Benefits
Future-Ready Electrical Systems
We engineer rewiring projects that anticipate growth: oversized EMT pathways where practical, spare panel capacity, networked lighting controls, and structured cabling support. We deploy THHN/THWN‑2 copper conductors, surge protective devices (SPDs), and submetering for tenants. Smart relays, daylight harvesting, and demand‑response ready controls help satisfy Title 24 while enabling remote monitoring. For future EV expansion, we design EV‑ready infrastructure and load management to scale without disruptive rework.
Code Compliance and Permitting
Shaffer Construction manages the full approval path—electrical permit application, plan check responses, and inspections—with the City of Glendale Building and Safety Division and GWP for meter/service work. Our installations follow the 2022 California Electrical Code (based on NEC), California Energy Code (Title 24 Part 6), CALGreen requirements, and applicable Glendale Municipal Code provisions. We coordinate acceptance testing for lighting controls and verify egress illumination levels and emergency circuits to satisfy inspectors the first time.
Expert Commercial Electricians
We build with commercial‑grade materials: copper THHN/THWN‑2 in EMT with compression fittings, galvanized steel junction boxes, spec‑grade devices (Hubbell/Leviton), Square D/Siemens panelboards, and NEMA 3R equipment outdoors. Rooftop penetrations receive sealed, UV‑rated fittings. We label circuits per NFPA 70, balance phases, and apply selective coordination in panel schedules. Our team lock‑out/tag‑out procedures and NFPA 70E practices keep your site safe while we deliver clean, reliable power distribution.
Tailored Rewiring Solutions
Every property starts with a load study, circuit mapping, and as‑built documentation. We consult on tenant needs—kitchen loads, POS, IT racks, medical equipment—and design dedicated circuits, emergency egress routes, and panel locations for accessibility. Where operations must continue, we phase work after hours or weekends and provide temporary power. You receive stamped drawings when required, a clear scope, and a schedule aligned with inspections and tenant milestones.
What We Offer
Frequently Asked Questions
Can you rewire my Glendale storefront after hours to keep us open?+
Yes. We commonly phase commercial rewiring after hours or on weekends to minimize downtime. We set up temporary power, isolate work zones, and coordinate with your staff. Critical circuits—like refrigeration, POS, or security—are transferred to temporary feeds so you can operate during the upgrade.
How long does permitting take with Glendale for a commercial rewiring?+
For typical tenant spaces, plan check and permit issuance by the City of Glendale Building and Safety Division usually take 2–3 weeks. Larger scopes involving service upgrades, fire alarm interfaces, or structural changes can take longer. We prepare complete submittals and respond quickly to comments to keep things moving.
Will a complete rewiring let me add EV chargers or kitchen equipment later?+
Yes. We design panel schedules with spare capacity, oversize key conduits where feasible, and can install EV‑ready circuits with load management. For kitchens, we add dedicated circuits and higher‑amp feeders to handle future appliances without disruptive rework. This future‑proofing is planned during design.
Do you replace old Zinsco or FPE panels during the rewiring?+
Absolutely. Obsolete panels like Zinsco and Federal Pacific are common in older Glendale buildings and are typically replaced during a full rewiring. We install modern panelboards with proper grounding, SPDs, and clearly labeled circuits, and we coordinate service shutdowns with Glendale Water & Power.
What materials do you use in commercial spaces—can you use Romex?+
In Glendale commercial occupancies, we primarily use EMT conduit with THHN/THWN‑2 copper and MC cable where appropriate. NM‑B (Romex) is generally not accepted in most commercial building types and areas; if a specific occupancy allows it, we’ll confirm with the inspector. Our default approach is durable, code‑compliant commercial materials.
Ready to Get Started?
Contact us today for a free consultation and quote on your electrical project!
Contact Us