Free bill analysis - bring a power bill, get the production math for your actual roof, panel brands like Qcells and REC compared side by side
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.
Solar Services in Petaluma, CA
Solar in Petaluma runs into the same two realities on every roof: the Petaluma Gap cuts your annual production below what the big solar-brochure calculators predict, and the same wind that sweeps fog through town wants to lift panels off the rafters if the racking was spec’d from a generic NorCal map. Gus Petrakis has been designing systems around both of those problems for over 29 years, and he’s the one who answers the phone at (877) 550-6892. If your current solar quote was built off Santa Rosa weather data, you’re already looking at an inflated number.
We do full Solar Panel Installation in Petaluma, battery backup, roof repairs before any mount goes down, cleaning, and system monitoring from our own crew. No subs. No door-knock crew. No signature-tonight routine. Just honest math built off your actual PG&E bill and the wind load your specific roof actually faces.
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 Petaluma Homeowners Choose Gus’s Solar
Most calls we get in Petaluma start the same way: a homeowner in the 94952 or 94954 zip got a quote from an out-of-state installer that looked great on a tablet, then the second visit came with hidden line items and a “sign tonight” deadline. That is not how this works. Gus’s Solar runs on a 90-Day Done Right Promise in writing on every job, and if something is not right, one call brings Gus back. No ticket queue, no third-party escalation. He answers his own phone.
We’ve worked roofs across West Petaluma and East Petaluma, from the steep-pitch Victorians near downtown to the tile-roof tract homes climbing toward the Sonoma Mountain foothills. Background-checked, uniformed crew on every job. The name on the truck matches the name on the license, and the address on the building is real. That is the entire proposition: a loca business that will still be here when year three’s inverter question comes up.
Solar Services We Offer in Petaluma
Solar Panel Installation
We design around your actual bill and your actual roof, not a regional average. In Petaluma that means accounting for fog-reduced production and wind-uplift racking that Santa Rosa installers never think about.
Learn more about our Solar Panel Installation in Petaluma.

Solar Battery Storage & Backup
Foggy summer mornings and public-safety power shutoffs are both realities in Sonoma County. We install Enphase and Tesla battery systems sized to your overnight load, so the fridge keeps running when the feeder line goes dark.
Learn more about our Solar Battery Storage & Backup in Petaluma.

Solar Panel Cleaning
Pollen, marine layer residue, and dust from the 101 corridor cut into your output more than most monitoring apps show. We clean panels in Petaluma and show you the before-and-after production numbers, not just a shinier roof.
Learn more about our Solar Panel Cleaning in Petaluma.

EV Charger Installation
We run dedicated circuits and mount Level 2 chargers in garages throughout Petaluma. If your panel is near capacity, we’ll tell you before we quote, and the price you hear is the price on the invoice.

Solar Panel Maintenance & Monitoring
Gus watches system production from the office and calls you when a string underperforms. Most Petaluma customers notice the fog before the inverter does. We catch it first.

Solar Panel Repair
Microinverter failure, roof leak at a mount, critter damage under the array. We repair all of it, and right now there’s $40 off any repair over $200 for Petaluma customers.

Commercial Solar Installation
Warehouses along Lakeville Highway and retail buildings near the downtown corridor. We handle commercial permitting, PG&E interconnection, and flat-roof ballasted systems in Petaluma.

Neighborhoods We Serve in Petaluma
We work all four Petaluma zip codes – 94999, 94952, 94953, 94954 – and most jobs get a crew on site within a couple of days once the design and permit are locked. Typical neighborhoods include:
- Downtown and the historic West Side (94952)
- East Petaluma tract homes (94954)
- College Heights and the Sunnyslope area (94954)
- Old Adobe and the foothill subdivisions south of Sonoma Mountain (94954)
- Lakeville and the rural parcels toward the 94952 rural routes
Why Petaluma’s Climate & Housing Affect Solar
Petaluma sits directly in the Petaluma Gap, a break in the coastal hills that pulls marine air and summer fog from San Pablo Bay straight through town. That means two things at once. First, your panels will produce less than the same system would in Rohnert Park or Santa Rosa, because Petaluma simply gets more fog hours and fewer peak sun hours. Any production quote built off generic NorCal weather data will overpromise. Gus’s quotes run on year-25 output modeled from your actual usage and Petaluma’s real irradiance, not a brochure number.
Second, the same gap that brings fog also brings wind, and it is serious wind. Petaluma’s building department has flagged undersized anchoring on systems designed to generic wind-zone maps that smooth over the Gap’s localized exposure. On a wind-facing east or west roof in the 94954 foothills, we routinely upsize lag counts and specify higher wind-rated hardware than we’d use on an identical pitch in Santa Rosa. That is not upselling. That is keeping your array on the roof through the next winter storm.
Then there is the housing stock itself. West Petaluma’s Victorians and Craftsman homes in 94952 carry steep pitches, aging decking, and in some cases historic district review that changes how and where panels can go. The tract homes in East Petaluma are more routine, but the tile roofs pushing up toward Sonoma Mountain need tile hooks and a lighter touch on the flashing details. None of this is rare in Petaluma. It is just normal here.
Pricing for Solar in Petaluma
Here is what solar actually costs in this city, based on the jobs we’ve done from downtown to the 94954 foothills.
- Full residential solar install (5-8 kW, comp shingle roof): $14,000-$21,000 before the 30% federal tax credit
- Residential install on tile or steep-pitch Victorian (West Petaluma): add $1,500-$3,500 in labor for tile hooks, decking repair, and historic district compliance
- Battery backup (one Enphase 5P or Tesla Powerwall 3): $9,000-$13,000 installed, before any state battery incentive
- Panel cleaning (single-story, up to 20 panels): $175-$350
- EV charger installation (dedicated 50A circuit, standard garage run): $700-$1,400
- Microinverter or panel repair: $250-$600, with $40 off any repair over $200 right now
Bring us a bill and we’ll bring you the math. No trip charge inside Sonoma County, and a Free Second Opinion on any written estimate you’ve already received. Take two weeks. Think about it. The price will be the same.
Service Area - Cities Near Petaluma
We serve the full Petaluma area and the communities right around it, including Cotati, Rohnert Park, Sonoma, and Boyes Hot Springs. Scheduling and dispatch run from our San Francisco Bay Area office, but the crews working your roof are local to the North Bay.
Serving Petaluma, CA - Our Local Coverage Area
We’re based in the Petaluma 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 Petaluma
A full residential install in Petaluma typically runs $14,000 to $21,000 before the 30% federal tax credit, with tile roofs and historic West Side homes at the higher end. Call (877) 550-6892 with your PG&E bill and we’ll give you an exact number off your actual usage, not a regional estimate.
Yes, measurably. The Petaluma Gap pulls marine fog from San Pablo Bay through the city, cutting peak sun hours compared to Santa Rosa or Rohnert Park. A quote built off inland Sonoma weather will overpromise. We model your production using Petaluma-specific irradiance data so the year-25 number we quote is one you’ll actually see.
Sometimes. Petaluma sits in a higher wind-speed zone than its inland neighbors, and the city’s building department has flagged undersized anchoring on systems designed to generic NorCal maps. On exposed roofs we use more lags and higher-rated racking, which can add a few hundred dollars. It’s the difference between a system that lasts 25 years and one that loses panels in a winter storm.
Yes, and we do it regularly. Steep pitches and historic district review add complexity and some labor cost, but the roof-facing side of a Victorian works fine for panels. We handle the permits, the engineering stamps, and the flashing details so your 1920s roof stays watertight.
For quotes and inspections, usually within a couple of days. For cleaning and repair calls, often same week. A live person answers (877) 550-6892 around the clock, not a voicemail. Call us and Gus or one of his direct staff will pick up, day or night.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Petaluma and Sonoma County since 2011.
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 Petaluma Customers Say
"Told me straight that a battery did not make sense for how we use power and sold me the array without it. He talked himself out of a good deal of money that afternoon."
- Reginald Pontefract"He flashed every roof penetration properly and showed me the flashing before it went down. Three roof seasons on and not a drop anywhere."
- Philomena Achara"Panel level monitoring so I can see each one, proper stainless clips under the array rather than zip ties, and he walked me under it with a torch to show me before he signed off."
- Cassius Delacroix






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