Commercial Panel & Service Upgrades in Santa Rosa, CA
A commercial panel and service upgrade is the electrical work that increases a building's power capacity — a panel swap, a service entrance upgrade, or a conversion to three-phase power — to support equipment, tenant demand, or growth the original system wasn't built for. J&J Electric handles this work throughout Santa Rosa for property managers, general contractors, and business owners, and we'll tell you plainly whether your project is a quick swap or a genuine capacity increase that involves PG&E's own timeline.
- “One day” doesn't apply to every commercial upgrade. If PG&E needs to build new infrastructure to support your new capacity, that's a months-long process — we'll tell you which situation you're in before you commit to a schedule.
- Not sure if you need three-phase power? Most larger commercial equipment needs it; most small offices don't — we'll assess your actual load instead of guessing.
- Federal Pacific and Zinsco panels are just as dangerous in a commercial building. Independent testing shows these breakers can fail to trip in up to 25% of overload situations — the risk doesn't change because it's your business instead of your home.
5.0 ★
16 Google reviews
2019
Serving Sonoma County since
C-10 #1078243
Licensed & insured
Sonoma County
Owned & operated
Why Santa Rosa Businesses & Property Managers Choose J&J Electric
- Licensed, insured, and verifiable — CA C-10 #1078243, checkable yourself at cslb.ca.gov
- Honest timelines — we'll tell you when PG&E's process, not our work, is what takes time
- Proof of insurance coverage provided on request for property managers and GCs
- Local, on-time & respectful of your operations — a Santa Rosa-based crew that shows up on schedule
Planning a capacity increase or facility upgrade? Call (707) 480-8331 or request a quote below — the earlier we assess it, the more accurate your timeline.
What Is a Commercial Panel & Service Upgrade?
A commercial panel and service upgrade is electrical work that increases a commercial building's power capacity, ranging from a straightforward panel swap on infrastructure that already has room, to a full service entrance upgrade or conversion to three-phase power that requires new utility infrastructure. It covers panel and sub-panel installation, service entrance capacity increases, CT (current transformer) metering for larger loads, and the load study that determines what your building actually needs.
This work matters any time a building's electrical demand outgrows what it was originally built for — new HVAC equipment, a retail-to-restaurant conversion, added manufacturing equipment, or simply an aging system reaching the end of its safe service life. The scope varies enormously depending on one key question: does your existing service already have the capacity you need, or does this require PG&E to build something new? That distinction changes the entire timeline, and we'll help you understand which situation applies to you before you plan around it.
Our Commercial Panel & Service Upgrade Process
Here's how we typically approach a commercial panel or service upgrade:
- Assessment & Load Study — We inspect your current panel and service, calculate your actual and projected electrical demand, and determine whether your existing capacity is enough or a genuine increase is needed.
- PG&E Coordination (When Needed) — If a capacity increase requires new utility infrastructure, we submit the application and coordinate with PG&E's engineering process — and we'll tell you honestly how long that queue typically runs.
- Permitting — We pull the required electrical permit and coordinate inspection timing with your building's operations.
- Installation — We install the panel, sub-panel, or service upgrade, scheduling the actual switchover for off-hours or weekends to minimize disruption to your business.
- Inspection & PG&E Energization — We coordinate final inspection and, where applicable, PG&E's reconnection or energization of the new service.
How Much Does a Commercial Panel or Service Upgrade Cost?
Costs vary significantly by scope — a straightforward panel swap on a building with adequate existing service capacity is a smaller, more predictable project, while a full service upgrade involving three-phase conversion, CT metering, or new PG&E infrastructure is meaningfully larger.We'll give you a real number based on your actual load and service situation.
A few things move the cost more than anything else:
- Whether new PG&E infrastructure is required. A capacity increase needing a transformer upgrade or service extension is a different, larger cost category than a straightforward swap.
- Single-phase vs. three-phase. Converting to three-phase service, if your equipment requires it, adds meaningful scope beyond a same-type panel swap.
- CT metering requirements. Loads above 200A typically need current-transformer metering, a different setup than a standard meter.
- Building age and condition. Older commercial buildings, especially in historic downtown areas, sometimes need more extensive infrastructure work alongside the panel itself.
Want a real number for your building? Call (707) 480-8331 or request a quote below for a written estimate.
Simple Panel Swap vs. Full Capacity Increase: Know Which One You Need
A simple panel swap replaces existing equipment without increasing your building's service capacity — if your current service already has enough room for your load, this can often be scheduled and completed in days. A full capacity increase is different: it means your building needs more power than your current service can deliver, which may require PG&E to build new infrastructure, like a larger transformer or an upgraded service extension.
This distinction matters enormously for your timeline. PG&E's own published process and third-party analysis show that a straightforward capacity increase requiring new infrastructure realistically takes 7 to 15 months, and 18 to 36 months with added complexity like capacity constraints or overhead-to-underground conversion. This is PG&E's process, not ours — but we'll tell you clearly which situation applies to you as early as possible, so you're planning around reality rather than assuming a residential-style “one day” timeline applies.
Commercial Panel & Service Upgrades
What's Included: Commercial Panel & Service Upgrade Services We Provide
Panel & Sub-Panel Installation
New or replacement panels sized to your building's actual and projected electrical demand, from a single sub-panel to a full distribution upgrade.
Service Entrance Upgrades
Increasing the capacity of your building's connection to the utility, coordinated with PG&E when new infrastructure is required.
Three-Phase Power Conversion
Installing three-phase service (120/208V or 277/480V) for equipment — larger HVAC, manufacturing gear, large motors — that single-phase power can't support.
Load Studies & Demand Calculations
NEC-based commercial load calculations that determine your building's real capacity needs, not a guess.
CT Metering Installation
Current-transformer metering setups typically required by PG&E for commercial loads above 200 amps.
Hazard Panel Replacement
Replacing Federal Pacific, Zinsco, and Challenger panels in commercial buildings — the same documented failure-to-trip risk that affects homes applies here too.
Why Choose J&J Electric for Commercial Panel & Service Upgrades
We set honest timeline expectations
We'll tell you clearly whether you're looking at a quick swap or a PG&E-dependent capacity increase, before you plan around the wrong number.
We schedule around your operations
Disruptive work happens off-hours or on weekends, coordinated directly with you.
We don't borrow residential pricing for commercial scope
Commercial capacity work is a genuinely different cost category, and we'll give you a real assessment, not a recycled number.
We're licensed, and we'd rather you check than trust us blindly
C-10 #1078243 is public record at cslb.ca.gov.
Reviews
What Santa Rosa Clients Say About Us
Google Rating
5.0 ★
Based on 16 reviews
Quotes shown are website testimonials from J&J Electric clients.
Service Area
Serving Santa Rosa & Sonoma County Businesses
J&J Electric handles commercial panel and service upgrades throughout Santa Rosa — including Downtown, Montgomery Village, Fountaingrove, and business parks throughout the city — plus Windsor, Healdsburg, Sebastopol, Rohnert Park, Cotati, Sonoma, and Petaluma beyond city limits. We work with historic downtown buildings on original decades-old infrastructure as often as newer commercial construction, and we'll assess your specific situation honestly before recommending a scope.
FAQ
Frequently Asked Questions
How much does a commercial panel upgrade cost?
Costs vary significantly by scope. A straightforward panel swap on a building with adequate existing service capacity is a smaller, more predictable project, while a full commercial service upgrade involving three-phase conversion, CT metering, or new PG&E infrastructure is a meaningfully larger, more variable cost. A residential 200-amp figure of $2,500–$5,000 is published locally by other contractors, but shouldn't be treated as representative of commercial-scale work — call (707) 480-8331 for a real assessment.
How long does a commercial electrical service upgrade take?
It depends heavily on whether new utility infrastructure is required. A straightforward panel or sub-panel swap on existing adequate service can often be completed in days. But if the upgrade requires PG&E to build new infrastructure — such as a transformer upgrade or service extension — that can realistically take 7 to 15 months for a straightforward project, and 18 to 36 months with added complexity.
Does my business need three-phase power?
It depends on your equipment. Most commercial loads above certain thresholds — larger HVAC systems, manufacturing equipment, and some large motors — require three-phase power (typically 120/208V or 277/480V), a different service type than the single-phase power most homes and small offices run on. An assessment of your actual equipment and load is the only reliable way to know for certain.
What is CT metering and when does my business need it?
CT (current transformer) metering is a metering method PG&E typically requires for commercial electrical loads above 200 amps, using instrument transformers rather than a standard residential-style meter to measure higher current safely and accurately.
Are Federal Pacific and Zinsco panels dangerous in commercial buildings too?
Yes — the same documented risk applies regardless of building type. Independent testing has shown Federal Pacific Stab-Lok breakers fail to trip in up to 25% of overload situations, meaning the safety protection you assume is there may not actually function. This risk doesn't change whether the panel is in a home or a commercial building.
Will my business insurance require a panel replacement?
It's an increasingly common requirement. Commercial property insurers are increasingly requiring the replacement of known hazard panel brands, like Federal Pacific or Zinsco, as a condition of coverage or renewal — worth checking with your insurer directly if you're unsure about your building's panel.
Can I add EV charging or solar during a commercial panel upgrade?
Often, yes. Bundling additional capacity or dedicated circuits into a planned service upgrade can reduce the number of times PG&E needs to be involved and avoid a second disruption later.
Do I need a load study before a commercial panel upgrade?
Yes, generally. A formal load study or demand calculation determines your building's actual electrical needs based on NEC standards, rather than guessing at the right panel or service size.
What's the difference between PG&E Rule 15 and Rule 16?
PG&E's Electric Rule 15 governs cost responsibility for service extensions, while Rule 16 covers construction and design standards for commercial service, including how PG&E's construction department reviews single-line diagrams and clearance requirements.
Can you schedule a commercial panel upgrade around our business hours?
Yes. We schedule the actual switchover and any disruptive work for off-hours, weekends, or planned downtime specifically to minimize impact on your operations.
Let's Assess Your Building's Real Capacity Needs — Contact J&J Electric
Whether it's a straightforward swap or a genuine capacity increase, getting an honest assessment early is the best way to plan around a real timeline instead of a guess. (707) 480-8331 or request a quote below and we'll set up a site visit.
California C-10 License #1078243
Phone
Hours
Monday–Friday, 8:00 AM–5:00 PM
Residential Electrical Services in Santa Rosa
J&J Electric keeps Santa Rosa homes safe and powered with complete residential electrical services — from troubleshooting and repairs to outlet and switch installation, ceiling fans, whole-home rewiring, surge protection, and lighting. Our licensed C-10 electricians work in every neighborhood, including Fountaingrove and Rincon Valley, bringing code-compliant workmanship to older post-Tubbs-Fire rebuilds and new construction alike. Whether you need a quick fix or a full electrical remodel for a kitchen or bath, we deliver clean, reliable results backed by clear communication and honest, itemized pricing. Call (707) 480-8331 to schedule your residential service.
Commercial Electrician Services in Santa Rosa
J&J Electric delivers reliable commercial electrical services for offices, retail spaces, restaurants, businesses, and commercial properties throughout Santa Rosa and Sonoma County. We handle electrical installations, tenant improvements, panel and service upgrades, lighting retrofits, equipment connections, repairs, maintenance, and code corrections while working to minimize disruption to your operations. Our licensed C-10 team provides professional, code-compliant electrical solutions built around safety, reliability, and long-term performance. Request a commercial quote at (707) 480-8331.
24/7 Emergency Electrician in Santa Rosa
When an electrical problem creates an immediate safety concern or disrupts your home or business, J&J Electric provides emergency electrical assistance throughout Santa Rosa and surrounding Sonoma County communities. Our electricians can troubleshoot urgent issues including electrical shorts, sparking outlets, damaged wiring, breaker problems, overheating, panel emergencies, and other dangerous electrical conditions. We focus on identifying the source of the problem, making the situation safe, and providing a clear path toward a reliable repair. Call (707) 480-8331 to upgrade your electrical panel.
Winery & Vineyard Electrician in Santa Rosa
J&J Electric provides specialized electrical services for wineries, vineyards, and wine-production facilities throughout Sonoma County and the North Bay. Our team understands the importance of dependable electrical systems during production and harvest season and can assist with winery installations, equipment connections, pumps and motors, lighting, panels, repairs, maintenance, and code corrections. We work with commercial property owners and winery operators to deliver safe, reliable electrical systems while helping minimize operational downtime. Call (707) 480-8331 to book your EV charger installation.