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If the pitch starts at your door and ends with "sign tonight for the special," sleep on it. The sun will still be there tomorrow; so will we.
Before
After
Before
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AfterSolar Services in Napa, CA
If you live in Napa and you’re weighing solar, you’ve probably already had a door-knocker promise you the moon. That’s not how we work. Gus’s Solar is locally owned and owner-operated, and we quote your system off your actual utility bill, not a brochure estimate. A live person answers our phone at (877) 550-6892, day or night. We serve the whole Napa Valley, from downtown Victorians to the ranch homes east of Highway 29, and we’ll be straight with you about what solar actually costs here and what it’ll produce.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Napa Homeowners Choose Gus’s Solar
Napa homeowners tend to be careful with their money and even more careful with who they let on their roof. We understand that. Gus Petrakis puts his own name on the truck, on the estimate, and on the work. He’s been doing solar since 2011, and the company still operates the way it did on day one: real numbers, a real address, and a real person who answers when you call. Homeowners in the Old Town and Alta Heights neighborhoods have had us out for everything from full roof arrays to simple panel repairs, and the feedback we hear most is that we showed up when we said we would and the price didn’t change at the end. That’s the whole point.
We’re licensed, insured, and bonded. Gus’s own crew does the install. Nobody gets handed off to a subcontractor, and every technician who arrives at your door is background-checked and in uniform. If something isn’t right within 90 days, the Done Right Promise means Gus comes back and makes it right. In writing. One call, and he’s on it.
Solar Services We Offer in Napa
Solar Panel Installation
We design and install roof-mounted solar arrays for Napa’s mix of housing stock, from early-1900s Craftsman homes near downtown to the newer builds south of Imola Avenue. Every system is sized against your actual usage, not a square-footage guess.
Learn more about our Solar Panel Installation in Napa.
Solar Battery Storage & Backup
With PG&E’s fire-season shutoffs still fresh in a lot of minds, Napa homeowners increasingly want batteries paired with their arrays. We install Enphase and FranklinWH battery systems that keep your refrigerator, well pump, and a few lights running when the grid drops.
Learn more about our Solar Battery Storage & Backup in Napa.
Solar Panel Cleaning
Dry summer months mean dust, pollen, and the occasional crush-season haze settle on panels and slowly eat into output. A cleaning once or twice a year restores most of that loss, and we do it safely from the roof or with a water-fed pole.
Learn more about our Solar Panel Cleaning in Napa.
EV Charger Installation
More Napa garages are getting Level 2 chargers, and we install them properly: the right circuit, the right panel assessment, and the right charger for your driving range. If your panel is tight, we’ll tell you straight instead of selling you something that’ll trip.
Solar Panel Maintenance & Monitoring
Gus monitors every system we install. If production dips and you haven’t noticed, we call you. That’s the difference between buying from a company that checks in and one that disappears after commissioning.
Solar Panel Repair
Microinverter failures, damaged racking, rodent-chewed wiring under panels: we see it all in Napa, especially on older arrays installed by out-of-town crews. We repair equipment from all major brands, including Qcells, REC, and SunPower panels. Senior and veteran homeowners get 10% off, and any repair over $200 takes $40 off.
Commercial Solar Installation
Wineries, tasting rooms, and production facilities have energy loads that make Napa’s commercial solar market unique, and we’ve built systems for agricultural buildings all over the valley. Rooftop arrays on barrel rooms and crush-pad facilities are our bread and butter here.
Neighborhoods We Serve in Napa
We work across the entire Napa city footprint and the surrounding county, from the flat valley floor up into the hills. Typical response time for a service call anywhere in the Napa area is same-day when we’re already in the valley, and next-day otherwise.
- Downtown and Old Town (94559)
- Alta Heights
- Browns Valley
- South Napa (94558)
- East Napa near Silverado Trail (94581)
Why Napa’s Climate & Housing Affect Solar
Napa’s marine fog layer is the single biggest production variable most national installers get wrong when they model a system for this valley. On a typical summer morning, the fog rolls in through the Carquinez Strait and sits over the valley floor until late morning. A production model that assumes clear skies at 9 a.m. in July is overestimating your annual output. Gus builds his quotes around what the panels will actually do in Napa, not what they’d do in Fresno. Summers here are hot and dry, with almost no rain to wash panels from June through October, so soiling build-up is real, and a yearly cleaning keeps your array performing. As for housing, the Craftsman and Victorian homes near downtown often have older rafters that need a structural check before racking goes up, while South Napa neighborhoods that rebuilt after the 2014 earthquake frequently have newer roofs ready for panels without any retrofit work.
Pricing for Solar in Napa
Every house is different, but here’s honest Napa pricing based on what we’ve quoted in this valley. Bring us your bill and we’ll build the math off what you actually use and what PG&E currently pays for export. The number we quote is the number you pay.
- Residential solar installation: $12,000-$28,000 after the federal tax credit, depending on system size and roof complexity
- Battery storage add-on: $8,000-$16,000 per battery, installed
- Panel cleaning: $150-$350 for a typical residential array
- EV charger installation: $600-$1,800, depending on panel capacity and run length
- Panel repair: $150-$900 for most repairs; $40 off any repair over $200
Take two weeks. Think about it. The price will be the same. If a salesman needs an answer tonight, the answer is no.
Service Area - Cities Near Napa
Gus’s Solar serves the whole Napa Valley and the surrounding North Bay. You’ll find us working in Sonoma, Boyes Hot Springs, Fairfield, and American Canyon, and all points between.
Serving Napa, CA - Our Local Coverage Area
We’re based in the Napa area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Solar in Napa
Most residential systems in Napa run between $12,000 and $28,000 after the federal tax credit, with battery backup adding $8,000 to $16,000. The valley’s mix of old and new housing stock means roof condition and panel capacity drive the final number more than anything else. Call (877) 550-6892 with your bill in hand, and we’ll give you a real figure, not a range from a website.
Yes, and that’s exactly why you want a local installer doing your production model. Valley-floor systems in Napa lose consistent morning production during summer fog season, typically until 10 or 11 a.m. National companies that model clear-sky mornings will overpromise your annual output. We input real Napa weather patterns, so our year-one estimate is a number we’ll stand behind, not a number that looks great on paper and disappoints by August.
Usually yes, but we’ll check the rafters first. Homes near downtown and Old Town built before 1940 often have roof framing that predates modern load calculations, and some need minor reinforcement before racking goes on. We inspect before we quote, so there are no surprises on install day. South Napa homes rebuilt after the 2014 earthquake tend to be much more straightforward.
We do, and it’s a good chunk of our commercial work in Napa. The agriculture and winery load profile here is genuinely different from what you’d find in a regular commercial building: refrigerated barrel rooms, crush equipment, and tasting rooms pull steady power year-round. For vineyard-zoned parcels, Napa County’s Agricultural Preserve ordinance means ground-mount systems usually require a special use permit, so we steer most winery clients toward rooftop arrays on existing buildings. That typically saves months of permitting and a lot of money.
If we’re in the valley, yes. A live person answers our phone at (877) 550-6892, and we can usually have a technician to your house the same day for a repair call. For a new system quote, we’ll schedule a time that works for you, and free second opinions on any written estimate are always available.
Written by Gus Petrakis, Owner at Gus’s Solar. Gus founded the company in 2011 and still answers his own phone. Back to home.
What happens when you call
- 1A real person answersNo phone trees - talk to a local solar pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Napa Customers Say
"He modelled it on my actual bill and the current export rates rather than the old ones, and told me plainly that the payback was longer than the door knockers had claimed. Then it came in about where he said it would."
- Octavius Redmond"Production dropped one spring and I did not even notice. Gus rang me, because he watches the monitoring, and had it sorted the same week."
- Sunita Balakrishnan"My previous solar company went out of business and left me with an array nobody would touch. Gus took the system over, replaced two dead microinverters, and it has run properly since."
- Ferdinand Kaltenbrunner