Commercial Service Entrance Upgrades in Rohnert Park, CA
Real Costs, Real Downtime Numbers
From a light tenant improvement to a full-scale capacity upsize — priced honestly by tier, scheduled to minimize downtime, and scoped to what your equipment actually needs.
What Rohnert Park businesses want to know first:
- Light tenant improvement work and a large-scale service upsize are two very different cost tiers — we'll tell you honestly which one your project needs.
- Standard panel replacements cause 4 to 8 hours of downtime, and we use staged shutdowns, temporary feeds, and phased scheduling to keep your business running wherever possible.
- Not sure if you need three-phase power? We'll assess your actual equipment instead of assuming you need more than you do.
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20+ years
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CSLB #1156335
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Sonoma County
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Commercial Service Entrance Upgrades
Why Rohnert Park Chooses Bright Right Electric
- Licensed under CSLB #1156335, with every service upgrade scoped honestly before we quote it.
- A family-owned crew that plans around your operating hours, not the other way around.
- Straightforward pricing you hear before we start, not after.

Commercial Service Entrance Upgrades
What Is a Commercial Service Entrance Upgrade?
A commercial service entrance upgrade increases a building's overall electrical capacity to support new tenant equipment, a use change, or growing demand — touching the meter, service size, and sometimes three-phase power, not just a single panel. Bright Right Electric handles this for businesses across Rohnert Park. If you're a homeowner, our residential service entrance upgrades page is the better fit. This is one piece of our broader Panel Upgrades work, and if the issue is a specific breaker or code item rather than overall capacity, see Commercial Circuit Breaker Repair or Commercial Code Corrections.
Commercial Service Entrance Upgrades
Our Process
Every commercial service upgrade starts with understanding your actual equipment and operating needs.

01
Load calculation & equipment assessment
We identify your actual capacity needs based on your real equipment, not a guess.

02
Written scope
You get a real price in writing, with the cost tier — light tenant improvement or large-scale upsize — explained clearly.

03
Permit filed
We file the required permit as standard.

04
Utility coordination & downtime plan
We schedule the utility disconnect and plan staged shutdowns or off-hours work to minimize disruption.

05
Installation
The meter, service equipment, and any three-phase work is installed to current code.

06
Inspection & reconnect
We coordinate the final inspection so your service is restored cleanly.

Commercial Service Entrance Upgrades
How Much Does a Commercial Service Entrance Upgrade Cost?
It depends heavily on scale, and we'll tell you honestly which tier applies. Lighter tenant improvement electrical work commonly runs $8 to $25 per square foot. A large-scale service upsize — going from an existing 200-amp or 400-amp service to 600 or 800 amps — is a genuinely bigger project, running $35,000 to $180,000. A full restaurant buildout involving panel upgrades, three-phase power, and code compliance can run $40,000 to $100,000 or more.
Those are honest general ranges, not a locked-in Bright Right Electric quote — the fastest way to get an exact number is a load calculation based on your actual equipment. Call (707) 791-5552 or request a quote below and we'll tell you plainly which tier your project falls into.
Commercial Service Entrance Upgrades
How Much Downtime Should We Expect?
Standard panel replacements typically cause 4 to 8 hours of downtime. More complex switchgear work can take longer. We reduce disruption with specific, real techniques: staged panel shutdowns that isolate only the section being worked on, temporary feeds to keep critical equipment running, and phased scheduling so construction can continue in one area while another stays operational. Off-hours work is also an option where it makes sense for your operation.
Commercial Service Entrance Upgrades
Do We Need Three-Phase Power?
Only if your equipment genuinely requires it. Three-phase power is typically needed for large motors — the kind found in commercial kitchen exhaust hoods, refrigeration compressors, or heavier industrial equipment — rather than standard retail or office equipment. We'll assess what you're actually running rather than assume you need more capacity than your business does. If you're converting a retail space to food-and-beverage use, it's worth knowing that demand can shift from roughly 10 watts per square foot to over 50 watts per square foot, which is exactly the kind of change that often requires both a panel upgrade and three-phase service.
Commercial Service Entrance Upgrades
Can Our Older Building Still Meet Current Standards?
Often, yes. We assess your building's actual field conditions and target the systems that most directly affect safety and inspections, which frequently brings an older building into compliance without unnecessary demolition. Many Sonoma County commercial buildings, particularly in older districts, have electrical infrastructure that's decades old — that doesn't automatically mean a full teardown is required.
Commercial Service Entrance Upgrades
Who Pays for This — Us or Our Landlord?
It depends on your lease, and we're glad to help you sort out which situation applies. Many commercial leases include a tenant improvement allowance — a dollar amount per square foot covering part of the buildout — with the tenant responsible for costs above it. If the building's main panel itself lacks the capacity your business needs, upgrading it is typically the landlord's responsibility rather than yours. Electrical work commonly represents 15 to 25 percent of a total tenant improvement budget, so it's worth clarifying this early in your planning.
Commercial Service Entrance Upgrades
What's Included
Commercial service entrance upgrades cover a range of specific scopes. Here's what falls under it.
Commercial Meter & Service Upsize
Increasing your building's overall service capacity, from a modest bump to a full 600-800 amp upgrade for larger operations.
Three-Phase Service Installation
Adding or upgrading three-phase power for equipment with large motors, assessed against your actual equipment rather than assumed.
Restaurant & Food-Service Electrical Upgrades
Panel capacity, three-phase power, and code compliance for the most demanding tenant-improvement electrical scope there is.
Staged & Phased Upgrades for Occupied Buildings
Downtime-minimizing techniques — staged shutdowns, temporary feeds, and phased scheduling — for businesses that can't afford extended closure.
Residential Service Entrance Upgrades
If you're a homeowner rather than a business, see Residential Service Entrance Upgrades instead.
Commercial Electrical Repair Cluster
If the issue is a specific breaker, code item, or inspection rather than overall capacity, see Commercial Circuit Breaker Repair, Commercial Code Corrections, or Commercial Electrical Safety Inspections.
Commercial Service Entrance Upgrades
Why Choose Bright Right Electric
Honest about cost tiers.
We tell you plainly whether your project is a light TI or a genuine large-scale upsize.
Real downtime reduction.
Staged shutdowns, temporary feeds, and phased scheduling to keep your business running.
Insured for commercial work.
Licensed and insured, with a certificate of insurance available for your landlord or property manager on request.
Honest about landlord vs. tenant responsibility.
We'll help you sort out which situation applies to your specific lease.
08 ─────── Reviews
What Rohnert Park Customers Are Saying
Google Business Profile
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Across 27 Google reviews
Commercial Service Entrance Upgrades
Serving Rohnert Park and the Greater North Bay
Bright Right Electric provides commercial and tenant improvement electrical throughout Rohnert Park — offices, retail, and restaurants along the Commerce Boulevard and Redwood Drive corridors, and businesses near Sonoma State University and the University District — and out to Cotati, Penngrove, Petaluma, Santa Rosa, Sebastopol, Windsor, Healdsburg, Sonoma, and Cloverdale. Coverage extends into Marin County (San Rafael, Novato, Mill Valley, Sausalito, Larkspur, Corte Madera, San Anselmo, Fairfax, and Tiburon) and Napa County, including wineries, tasting rooms, and hospitality projects. If your property isn't listed, call anyway — the answer is usually yes.

Questions
Frequently Asked Questions
How much does a commercial service entrance upgrade cost?
Lighter tenant improvement electrical work commonly runs $8 to $25 per square foot, while a large-scale service upsize — from 200A/400A to 600A/800A — runs $35,000 to $180,000. Call (707) 791-5552 for an exact number.
How much does a restaurant electrical buildout cost?
A full restaurant buildout in a former retail space can run $40,000 to $100,000 or more when panel upgrades, three-phase power distribution, and code compliance are all part of the scope.
How much downtime should we expect during a commercial service upgrade?
Standard panel replacements typically cause 4 to 8 hours of downtime. Complex switchgear replacements take longer and usually require off-hours scheduling.
How do you reduce downtime during commercial electrical work?
Through staged panel shutdowns, temporary feeds, and phased build-outs that keep critical areas online while construction continues elsewhere.
Do we need three-phase power for our business?
Three-phase power is typically needed for large motors, such as those in commercial kitchen exhaust hoods or refrigeration compressors, rather than for standard retail or office equipment.
Can our older commercial building still meet current electrical standards?
Often, yes. Assessing field conditions and targeting the systems that most directly affect safety and inspections frequently brings an older building into compliance without unnecessary demolition.
Who pays for electrical service upgrades — the landlord or the tenant?
It depends on the lease. Many commercial leases include a tenant improvement allowance covering part of the buildout, and if the building's main panel itself lacks capacity, upgrading it is typically the landlord's responsibility.
How does a restaurant buildout affect electrical service needs?
Converting a retail space to food-and-beverage use can shift electrical demand from roughly 10 watts per square foot to over 50 watts per square foot, driven by refrigeration and cooking equipment.
What percentage of a tenant improvement budget goes to electrical work?
Electrical typically accounts for 15 to 25 percent of a total commercial tenant improvement budget.
How long does the electrical portion of a commercial tenant improvement take?
Total on-site electrical work is typically 2 to 3 weeks, spread across the broader construction schedule. Call (707) 791-5552 to talk through your specific timeline.
Get in touch
Ready to Get Started?
Call (707) 791-5552 any time, day or night, or fill out the quote form below and we'll get back to you.
Phone
(707) 791-5552
(tap to call)
Address
1150 Holly Ave, Rohnert Park, CA 94928
Hours
7am - 5pm & 24 hour emergency services available.
15 ─────── Full service detail
Electrical Panel Upgrades in Rohnert Park
Replacing an undersized or obsolete panel is the most common job we perform in Rohnert Park, and it's the one that unlocks everything else. If your home still runs original 100-amp service, a Federal Pacific Stab-Lok, or a Zinsco panel, you're working with equipment engineered for a much smaller electrical load — and, in the case of those two brands, with a documented history of breakers that fail to trip. Upgrading to 200-amp service makes EV charging, battery backup, heat pumps, and modern appliance loads possible without constantly tripping breakers. We size the new service to what your household actually needs, pull the permit, coordinate the PG&E disconnect and reconnect, and meet the inspector for final sign-off.
EV Charger Installation in Sonoma County
Bright Right installs Level 2 home charging sized to your vehicle and, just as importantly, to your panel's actual available capacity. We run the dedicated 240-volt circuit, mount and commission the charger, and handle the permit — installing Tesla Wall Connectors, universal J1772 and NACS units, and hardwired or plug-in setups across Rohnert Park, Petaluma, and Santa Rosa. The detail most homeowners don't hear until it's too late is that many Sonoma County panels can't support a Level 2 charger without a service upgrade first, so we run a load calculation before you buy equipment, not after. We can also pre-wire a second circuit if a second EV is anywhere in your future.
Standby Generators & Backup Power
Public safety power shutoffs are a fact of life in Sonoma County, and so are winter storms that take lines down in the hills. We install whole-house standby generators with automatic transfer switches that pick up the house within seconds of an outage, wire inlets and manual transfer switches for portable generators, and add whole-house surge protection so your equipment isn't damaged when the utility comes back online. We'll also tell you honestly which tier makes sense — not every home in Cotati or Penngrove needs a whole-house unit when a critical-loads panel that keeps the refrigerator, well pump, internet, and a few circuits alive costs a fraction as much.
Solar & Battery Systems
We handle new photovoltaic installation, battery storage, system additions, and remove-and-replace work when a roof needs attention or a system has failed — plus service on existing arrays that aren't producing what they should. If you inherited a solar system with the house and nobody can tell you how it's wired or whether it's still under warranty, we can assess it and give you a clear picture. Battery storage in particular has changed the math for Sonoma County homeowners: between shifting utility rate structures under NEM 3.0 and the frequency of outages, a battery paired with existing solar is often a better investment than adding more panels.
Interior & Exterior Lighting
Recessed and can lighting, full LED retrofits, under-cabinet lighting, dimmer and smart-switch installation, fixture and chandelier hanging, landscape lighting, and security and motion-sensor lighting for homes across Rohnert Park and the University District. On the commercial side we handle lighting retrofits for offices, retail spaces, and warehouses along the Commerce Boulevard corridor, including the fixture and control changes that come with California Title 24 compliance. Lighting is one of the few electrical upgrades where the difference is immediately visible, and it's frequently the cheapest way to make a dated room feel finished.
Electrical Troubleshooting & Repair
Breakers that trip for no obvious reason, circuits that go dead, lights that flicker when the dryer starts, outlets that no longer hold a plug, GFCIs that won't reset, a faint burning smell you can't locate. These are the calls where experience shows. We trace a fault to its real source instead of swapping parts and billing for guesses, which is why our repairs hold and why we get called in behind other contractors who couldn't find the problem. In older Sonoma County homes the cause is often a failing backstab connection, a corroded neutral, a rodent-damaged run in a crawlspace, or a decades-old junction box buried behind drywall.
Custom Homes & New Construction
Full electrical for ground-up residential builds, major remodels, and additions throughout Sonoma, Marin, and Napa County — load calculations and plan review, service and meter setup, rough-in, trim, and final inspection. We work with general contractors, designers, and owner-builders, and we're comfortable on high-end custom projects near Sonoma State University where the lighting design, low-voltage layout, and smart controls all have to be coordinated before a single wire goes in. Getting the details right at rough-in is what keeps a home safe and functional for the next forty years — and it's far cheaper than fixing it after the drywall is up.
Commercial Electrical & Tenant Improvement
Service upgrades, panel and subpanel work, dedicated circuits for equipment, lighting retrofits, EV charging for employee and customer parking, and full tenant-improvement electrical for offices, retail, restaurants, and light industrial space along Redwood Drive and beyond. We understand a commercial job runs on someone else's schedule, so we work around business hours when the scope requires it. From a single dedicated circuit to a complete build-out, you get one licensed contractor coordinating permits, PG&E, and inspection — with clear pricing and a clean, code-compliant result.
