Service

Commercial Panel Upgrades

Licensed commercial panel upgrades and service changes across Acton, Palmdale, Lancaster and the Antelope Valley — 200A to 800A service increases, meter stacks for multi-tenant buildings, sub-panels and three-phase distribution to support growing equipment loads.

Licensed · Bonded · Insured·CA Lic. C-1098584

Local Specialists

Commercial Panel Upgrades Done Right in Acton & the Antelope Valley

Older Antelope Valley commercial buildings often run on services that were sized for a different era — and a 200A or 400A panel that was plenty in 1995 chokes the moment you add modern HVAC, EV charging, walk-in refrigeration or expanded equipment. B&M Electrical Services performs commercial panel upgrades and service changes across Acton, Palmdale, Lancaster, Santa Clarita and the wider Antelope Valley: service increases from 200A up to 800A and beyond, meter-stack and meter-main upgrades for multi-tenant properties, new sub-panels for equipment rooms and tenant expansions, and three-phase distribution. Every upgrade is load-calculated, coordinated with Southern California Edison for the meter and service, permitted through the local jurisdiction, labeled to a clear directory and verified before sign-off.

Section 01

Service Increases — 200A to 800A and Three-Phase

When your building's load has outgrown its service, the fix is a service change — and it has to be engineered, not guessed. We run a real load calculation based on your actual and planned equipment, then increase the service to the right size: 200A to 400A, 400A to 600A or 800A, single-phase to three-phase where the utility supports it, and the switchgear to match. We coordinate the meter and service upgrade with SCE, install the new service equipment and main distribution, transfer existing circuits cleanly, and pull the permit and inspection. The result is a service with headroom for what's next, not one that's maxed out the day it's energized.

Load-calculated service increases from 200A to 800A+
Single-phase to three-phase conversions (utility-permitting)
New main switchgear, breakers and distribution
SCE meter and service coordination, permit and inspection
Clean transfer of existing circuits with verified labeling

Section 02

Meter Stacks, Sub-Panels & Multi-Tenant Buildings

Multi-tenant commercial buildings have their own challenges: separate metering per tenant, landlord house panels, and the constant churn of tenants adding and removing load. We install and upgrade meter stacks and meter-main combinations for multi-tenant properties, add sub-panels for new equipment rooms, tenant suites and expansions, and keep the distribution organized so the next tenant improvement doesn't require ripping it all out. For landlords and property managers, a clean, correctly sized and well-labeled electrical room is the difference between a smooth tenant turnover and a costly surprise — and we build it that way.

Meter-stack and meter-main upgrades for multi-tenant buildings
Sub-panels for equipment rooms, suites and tenant expansions
Landlord house-panel installation and organization
Distribution designed for easy future tenant improvements
Clear panel directories and labeling for every panel

Section 03

Replacing Obsolete & Failed Commercial Gear

Some commercial panels need to go regardless of capacity — discontinued models with no replacement breakers made anymore, gear with a history of overheating, panels with evidence of arcing or water damage, or equipment flagged on an inspection or insurance review. We identify obsolete and unsafe commercial gear, replace it with modern, properly rated equipment from manufacturers we can support for decades, and bring the installation up to current code in the process. Where the upgrade is driven by a failed inspection or an insurance requirement, we provide the documentation the authority or carrier needs.

Obsolete and discontinued panel identification and replacement
Modern, code-compliant gear from supportable manufacturers
Replacement of overheated, arced or water-damaged equipment
Code-correction upgrades for failed inspections
Documentation for insurance and authority-having-jurisdiction review

Need commercial panel upgrades in Acton or the Antelope Valley? We pick up the phone.

Call Us Now(661) 676-0615

Trusted By Homeowners

What Our Clients Say

113 Google Reviews

Brandon Rojas

Google

I had a great experience with this electrical service. The team showed up on time, worked efficiently, and finished the job faster than I expected while still doing everything the right way. The price was very fair compared to other quotes I received, which made the whole experience even better because the quality of work was still top-notch. I also want to give a shout out to Barrett for being professional, knowledgeable, and easy to work with. He made sure everything was taken care of before leaving and you can tell he takes pride in his work. Overall, great service, great price, and I would definitely recommend them to anyone needing electrical work done.

Loren Gibson

Google

B&M has done a couple jobs for me in the past year, very pleased with the work. Fast, efficient, fair pricing and the work is always really clean. Definitely a returning customer.

Travis Steinbock

Google

Barrett came out and gave me a good price on the work. They replaced my electrical panel and installed a disconnect for my AC unit. Then the next day, had a guy come out to patch up the wall and paint when the stucco dried. He also had the number of an AC technician for me to call to move a thermostat wire. Overall, great work and very communicative throughout the process.

See All Reviews

Frequently Asked Questions

Commercial Panel Upgrades FAQs

Straight answers to the questions Acton and Antelope Valley homeowners and business owners ask us most often.

How do I know if my commercial panel needs an upgrade?

Common signs: breakers tripping under normal load, no open spaces for new circuits, a panel that's warm to the touch, an obsolete or discontinued model, or planned additions (HVAC, EV charging, refrigeration, new equipment) that the current service can't support. We run a load calc to confirm whether you need an upgrade or just better distribution.

How large a service can you install?

We perform commercial service changes from 200A up to 800A and beyond, single-phase and three-phase, including the switchgear and distribution to match. The right size comes from a load calculation based on your actual and planned equipment — we size for headroom, not just today's load.

Can you upgrade a panel in a multi-tenant building?

Yes. We install and upgrade meter stacks and meter-main combinations for multi-tenant properties, add tenant sub-panels, and organize landlord house panels. We coordinate access and downtime so other tenants are minimally affected and schedule the meter work with SCE.

How long does a commercial panel upgrade take and will we lose power?

Most commercial service changes are 1–3 days of on-site work depending on size, with a planned power-down window coordinated with SCE for the meter swap. We schedule the outage for your closed hours wherever possible and tell you the exact window in advance.

How much does a commercial panel upgrade cost?

It depends on the service size, single- vs. three-phase, switchgear, the length of the service run and SCE charges. We provide a written estimate after a site assessment and load calc — we don't quote service-level work sight-unseen over the phone.

Are you licensed and insured for commercial service work?

Yes. B&M Electrical Services is a licensed California C-10 electrical contractor (CSLB #1098584), fully insured with general liability and workers' comp. We pull permits, coordinate with SCE, and verify every upgrade under load before sign-off.

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Tenant Improvements

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100A to 200A service upgrades, solar-ready main-meter combos, and sub-panel installations — fully permitted and SCE-coordinated.

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Service Area

Commercial Panel Upgrades Across Acton & the Antelope Valley

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