Commercial Subpanel Installation in Rohnert Park, CA
Sized Right, Scheduled Right
Real tenant improvement pricing, real schedule protection, and honest answers on three-phase power and multi-tenant metering — not just a subpanel swap.
What Rohnert Park businesses want to know first:
- Real tenant improvement pricing that scales with your build-out — we'll tell you honestly which tier applies before you commit to anything.
- Panel and subpanel work can add real time to your TI schedule — we'll tell you honestly how to keep it from delaying your opening.
- Converting from gas to electric cooking, adding equipment, or expanding to multiple tenants? We'll assess your actual load instead of guessing.
★★★★★
5.0 · 27 Google reviews
20+ years
in the trade
CSLB #1156335
licensed · bonded · insured
Sonoma County
owned & operated
Commercial Subpanel Installation
Why Rohnert Park Chooses Bright Right Electric
- Licensed under CSLB #1156335, with every subpanel sized to your actual tenant improvement plans.
- A family-owned crew that helps you start electrical work early so it doesn't become the reason your opening slips.
- Straightforward pricing you hear before we start, not after.
Commercial Subpanel Installation
What Is Commercial Subpanel Installation?
Commercial subpanel installation adds a secondary distribution panel to serve a specific tenant space, floor, or piece of equipment — fed from the building's main panel or switchboard, without requiring a full service upgrade. Bright Right Electric installs subpanels for businesses across Rohnert Park. If you're a homeowner, our residential subpanel installation page is the better fit. This is one piece of our broader Panel Upgrades work, and if your building needs more overall capacity rather than a subpanel specifically, see Service Entrance Upgrades Commercial.
Commercial Subpanel Installation
Our Process
Every commercial subpanel starts with your actual tenant improvement plan and timeline.
01
Assess space, load & timeline
We look at your build-out plans and where electrical fits into the broader schedule.
02
Written scope
You get a real price in writing, scoped to your square footage and use type.
03
Permit filed
We file the required permit as standard.
04
Coordinate with your GC & other trades
We recommend starting electrical early so it doesn't become the schedule bottleneck.
05
Subpanel installed & labeled
Every circuit gets labeled clearly for whoever manages the space next.
06
Inspection & documentation
You get a record suitable for your landlord, insurer, or future reference.
Commercial Subpanel Installation
How Much Does Commercial Subpanel Installation Cost?
Tenant improvement electrical work, including subpanel installation, commonly runs $8 to $25 per square foot, with basic office build-outs at the lower end and restaurant, medical, or retail spaces with specialized equipment at the higher end.
Those are honest general ranges, not a locked-in Bright Right Electric quote — the fastest way to get an exact number is to tell us about your space and use type. Call (707) 791-5552 or request a quote below and we'll tell you plainly which tier your project falls into.
Commercial Subpanel Installation
Will This Delay Our Opening?
It doesn't have to, but timing matters. Panel and subpanel work commonly adds 2 to 4 weeks to a tenant improvement schedule. Starting the electrical process early — ideally before your general contractor begins other trades — is the most effective way to keep it from becoming the item that delays your occupancy date. We'll help you plan around this rather than let it surprise you mid-project.
Commercial Subpanel Installation
Do We Need Three-Phase Power?
Only if your equipment genuinely requires it — large motors, HVAC compressors, or commercial kitchen equipment are the most common reasons. It's worth knowing that converting from single-phase to three-phase service requires utility approval and is treated as a new service installation, not a simple upgrade, so this is worth confirming early. If you're planning a restaurant conversion from gas to all-electric cooking, it's worth budgeting for a real jump in demand — commonly 150 to 400 amps of additional capacity on a single tenant space.
Commercial Subpanel Installation
How Does Metering Work in a Multi-Tenant Building?
It depends on how your building is structured. A master-metered building has one meter for the entire property; an individually metered building gives each tenant their own meter. Converting from one arrangement to the other is a genuinely bigger project than a simple subpanel — it requires a new main switchboard and a full metering stack redesign, not just adding a panel.
Commercial Subpanel Installation
Is There a Limit on How Many Subpanels Our Building Can Have?
Generally, yes. Electrical code limits the number of disconnecting means at a service entrance to six, which directly shapes how distribution gets designed in a multi-tenant building. This is exactly the kind of detail worth confirming with your local Authority Having Jurisdiction against the code cycle they've adopted, rather than assuming.
Commercial Subpanel Installation
What's Included
Commercial subpanel installation covers a range of specific scopes. Here's what falls under it.
Single-Tenant Subpanel for a TI Buildout
A dedicated subpanel sized to your specific tenant space and equipment plans.
Restaurant & Food-Service Subpanels
Higher-capacity subpanels sized for the real load jump that comes with commercial kitchen equipment.
Multi-Tenant Distribution & Metering
Distribution planning for buildings serving multiple tenants, including honest guidance on master-metered vs. individually metered setups.
Three-Phase Subpanel Installation
If your equipment genuinely requires three-phase power, see Service Entrance Upgrades Commercial for that broader project.
Residential Subpanel Installation
If you're a homeowner rather than a business, see Residential Subpanel Installation instead.
Commercial Electrical Repair Cluster
If the issue is a specific breaker or code item rather than adding capacity, see Commercial Circuit Breaker Repair or Commercial Code Corrections.
Commercial Subpanel Installation
Why Choose Bright Right Electric
Real, tiered TI pricing.
We tell you plainly which cost tier your specific build-out falls into.
Schedule protection.
We help you start electrical work early so it doesn't become your project's bottleneck.
Real technical knowledge.
Three-phase classification, metering structure, and disconnect limits — we know the details that actually matter.
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
"This is the most professional company I have ever worked with. I am a difficult person and hard to please (I have really high standards (as a retired science teacher) and I am skeptical of workmen and I'm a perfectionist!). Bright Right is currently working on the 3rd job I have hired them for – everything has gone smoothly, no stress at all!!! They are so friendly and so courteous. Rick and Dustin are an effective team with their two unique personalities – both very upbeat, serious, and kind. They explain everything in detail and answer all my questions (I am hyper-concerned about my property), and they are basically experienced, conscientious electricians you can trust."
— Nora Parker · Google Review
"I recently hired Dustin for some electrical work at my home, and I couldn't be happier with the results. He installed a high-quality bathroom fan, finished installing several outlets around the house, and completed a new electrical panel installation. From start to finish, Dustin was professional, knowledgeable, and clearly takes pride in doing the job right. The new panel installation was the bigger job, and Dustin handled it with real expertise. Everything was organized, labeled, and done to a very high standard, which gave me a lot of confidence in the safety and quality of the work."
— Google Review
"Bright Right did the electrical for our kitchen remodel and we couldn't be happier, we have since then added an EV with them and they were as good as the first time. Highly recommend!"
— Joey Evans · Google Review
"Shout out to Dustin Fildes, the electrician they sent to do the work at my house. You can tell he takes pride in his work. He's a very professional and very friendly. Individual would absolutely recommend Bright Right Electric and specifically Dustin to all my family and friends. Thank you Bright Right"
— Robert Horner, Google Review
Google Business Profile
5.0
Across 27 Google reviews
Commercial Subpanel Installation
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 commercial subpanel installation cost?
Tenant improvement electrical work, including subpanel installation, commonly runs $8 to $25 per square foot, with basic office build-outs at the lower end and restaurant, medical, or retail spaces at the higher end. Call (707) 791-5552 for an exact number.
How long does a commercial subpanel add to a tenant improvement schedule?
Panel and subpanel work commonly adds 2 to 4 weeks to a TI schedule, and starting the process early, before other trades begin, helps prevent it from becoming the critical path item.
Do we need three-phase power for our subpanel?
Only if equipment like large motors, HVAC compressors, or commercial kitchen equipment genuinely requires it. Converting from single-phase to three-phase requires utility approval and is treated as a new service installation, not a simple upgrade.
How much more capacity does a gas-to-electric kitchen conversion need?
A restaurant converting from gas to all-electric cooking can increase panel demand by 150 to 400 amps on a single tenant space.
How does metering work in a multi-tenant building?
A building can be master-metered, with one meter for the whole building, or individually metered, with each tenant on a separate meter. Converting between the two requires a new main switchboard and a full metering stack redesign.
Is there a limit on commercial disconnects or subpanels in one building?
Generally, yes. Electrical code limits the number of disconnecting means at a service entrance to six, which shapes distribution design in multi-tenant buildings.
What electrical work is typically included in a commercial tenant improvement?
A panel assessment or subpanel/service upgrade if needed, dedicated circuits for equipment, code-compliant lighting controls, outlet and data infrastructure, and permit coordination.
Why do older commercial buildings need subpanel or service upgrades?
Commercial buildings constructed before 1980 commonly carry service sizes that no longer meet code for modern occupancy loads.
What's the rule of thumb for subpanel sizing relative to the main panel?
Subpanels generally shouldn't exceed 50% of the main panel's total amperage.
Who pays for commercial subpanel installation — the landlord or the tenant?
It depends on the lease and whether the issue involves shared building infrastructure or a tenant's specific leased space. Call (707) 791-5552 and we're glad to help you sort out which one applies.
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.