Generator Repair in Rohnert Park & Sonoma County
The real #1 cause of a no-start generator (it's not what you think) — plus honest diagnostic pricing, from a licensed local electrical contractor.
Why Sonoma County Homes & Businesses Call Bright Right First
- We know the real #1 cause of a standby generator that won't start.
- We're honest about our diagnostic fee — credited toward the repair if you move forward.
- Licensed, insured, and available 24/7 — call (707) 791-5552 any time your project needs an electrician on-site.
★★★★★
5.0 · 27 Google reviews
20+ years
in the trade
CSLB #1156335
licensed · bonded · insured
Sonoma County
owned & operated
Generator Repair
Why Sonoma County Chooses Bright Right
- Local, family-owned electrical contractor based right in Rohnert Park — not a call center routing you to a subcontractor.
- Straightforward answers on diagnosis, pricing, and timing, explained before you sign anything.
- CSLB-licensed (#1156335) and available around the clock for anything that comes up along the way.
Generator Repair
What Is Generator Repair?
Generator repair covers diagnosing and fixing a generator that's already failed or is showing signs of trouble — this is different from our Generator Maintenance page, which covers scheduled, preventive care. Repair is what happens after something has already gone wrong, whether that's a generator that won't start, one that runs but doesn't deliver power, or a real failure discovered during an actual outage.
Getting the diagnosis right the first time matters — a real, specific cause, not a guess. Bright Right Electric repairs residential standby generators for homeowners across Sonoma County, as a CSLB-licensed electrical contractor (#1156335) based right in Rohnert Park.
Generator Repair
Our Process
A generator repair moves through the same core stages:
01
Initial Contact
We ask about your generator's symptoms, model, and recent service history to prepare for the visit.
02
Diagnostic Visit
We test the complete system to identify the specific, real cause rather than guessing.
03
Diagnosis & Quote
We explain what's actually wrong and provide a clear quote before any repair work begins.
04
Repair
We complete the repair using appropriate parts for your specific generator.
05
Testing
We test the generator under real load to confirm the repair actually resolved the issue.
06
Documentation
We document the repair for your records and warranty compliance.
Generator Repair
How Much Does Generator Repair Cost?
It depends on the specific cause. A diagnostic visit commonly runs $100–200 and is typically credited toward the repair if you authorize the work. Battery replacement — the most common fix — typically runs $200–400 installed. Transfer switch repair commonly runs $400–1,500, and controller replacement $500–1,500.
Generator Repair
The Real #1 Cause of a No-Start Generator
This is worth knowing before assuming the worst: the most common cause of a standby generator failing to start is a weak or dead battery — not the carburetor issues that plague portable generators. Batteries commonly need replacement every 2 to 3 years, even if they still test okay during routine checks.
Why Your Generator Can Pass Its Weekly Test and Still Fail
This is a genuinely important, non-obvious insight: the weekly self-test is short and puts relatively little demand on the battery and fuel system. A real outage requires a longer crank and hours of sustained load, so a weak battery or a fuel system with minor issues can pass the brief weekly test and still fail during the real thing. Passing the weekly test isn't the same as being genuinely outage-ready.
Runs But No Power? Here's What That Usually Means
This is a real, distinct symptom from a no-start issue, and it points to different causes:
- Faulty transfer switch — the component that can't direct power from the generator to your electrical panel.
- Tripped internal circuit breaker — worth checking and resetting first.
- Voltage regulator failure — insufficient or no usable power despite the generator running normally.
The Warranty Risk of Unlicensed Repair
This is a real, distinct stake worth knowing: most standby generator warranties require certified technicians to perform repairs. Using an unlicensed repair service can void your warranty entirely, leaving you responsible for the full cost of any needed replacement — regardless of how well the generator was otherwise maintained.
Is My Diagnostic Fee Applied to the Repair?
This is worth confirming upfront rather than assuming either way: standard industry practice is that a diagnostic fee is credited toward the repair cost if you authorize the work, but is typically non-refundable if you decline. Worth asking directly before any visit.
If You Smell Gas: Real Safety Guidance
This is genuinely serious: if you smell gas or suspect a fuel leak near your generator, don't operate switches, attempt to start the generator, or search for the leak yourself. Move away from the area and follow appropriate emergency and utility guidance.
Generator Repair
What's Included
Generator repair often works alongside these related services:
Generator Maintenance
Generator maintenance covers the scheduled, preventive care that helps avoid the failures this page addresses.
Generator Installation
Generator installation covers new systems, real pricing tiers, and the local PSPS context that makes backup power a genuine need in Sonoma County.
Automatic Transfer Switch Installation
Automatic transfer switch installation covers the safety-critical switching component, a common source of the "runs but no power" symptom covered on this page.
Generator Power Systems
Generator power systems covers smart monitoring that can help you catch battery and performance issues before they cause a real failure.
Generator Installation Service
Generator installation service covers the full-service, single-point-of-contact experience for a new system, if repair reveals your current generator needs replacing.
Generator Repair
Why Sonoma County Chooses Bright Right Electric
We diagnose the real cause, not a guess.
A real diagnostic visit identifies the specific issue — battery, transfer switch, voltage regulator — rather than replacing parts based on assumption.
We're honest about our diagnostic fee.
Credited toward your repair if you move forward — we'll confirm this plainly before any visit.
We protect your warranty standing.
As a licensed contractor, using our repair service helps keep your generator's warranty intact.
We're licensed, insured, and available 24/7.
As a CSLB-licensed contractor (#1156335), we're reachable at (707) 791-5552 any time your project needs an electrician on-site.
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
Generator Repair
Serving Sonoma County Homes & Businesses
Bright Right Electric is based at 1150 Holly Ave in Rohnert Park, and we install accent lighting for homes and businesses throughout Sonoma County — from Rohnert Park and Santa Rosa to Petaluma and the surrounding communities along the Highway 101 corridor. Whatever feature you want highlighted, we bring the right technique to the job.
Questions
Frequently Asked Questions
Why won't my standby generator start?
The most common cause for a standby generator failing to start is a weak or dead battery — not the carburetor issues typically associated with portable generators. Batteries commonly need replacement every 2 to 3 years, even if they still test okay.
What is the most common cause of generator failure?
A weak or dead battery is the most common cause of a standby generator failing to start, distinct from the fuel-system issues that more commonly affect portable generators.
How much does generator repair cost?
It depends on the cause. A diagnostic visit commonly runs $100 to $200 (often credited toward the repair), battery replacement $200 to $400 installed, transfer switch repair $400 to $1,500, and controller replacement $500 to $1,500.
Why did my generator fail during an outage after passing its self-test?
The weekly self-test is short and puts relatively little demand on the battery and fuel system. A real outage requires a longer crank and hours of sustained load, so a weak battery can pass the brief test and still fail during the real thing.
My generator runs but my house has no power — why?
This typically points to a faulty transfer switch, a tripped internal circuit breaker worth checking first, or a voltage regulator failure resulting in insufficient or no usable power despite the generator running normally.
How often should a generator battery be replaced?
Commonly every 2 to 3 years, even if the battery still tests okay during routine checks — proactive replacement helps avoid a real failure during an actual outage.
Will an unlicensed repair void my generator warranty?
Potentially, yes — most standby generator warranties require certified technicians to perform repairs. Using an unlicensed repair service can void coverage and leave you responsible for replacement costs.
Is a generator diagnostic fee applied toward the repair?
Standard industry practice is that the diagnostic fee is credited toward the repair cost if you authorize the work, but is typically non-refundable if you decline.
What should I do if I smell gas near my generator?
Don't operate switches, attempt to start the generator, or search for the leak yourself. Move away from the area and follow appropriate emergency and utility guidance.
How much does a generator transfer switch repair cost?
Transfer switch repair commonly runs $400 to $1,500, depending on whether the issue requires a repair or a full switch replacement.
Get in touch
Ready to Talk Through Your Project?
Call (707) 791-5552 or fill out the form below and we'll follow up with real design guidance for whatever you want to highlight.
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.