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.
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AfterFast, Reliable Solar Panel Installation Across San Francisco
A rooftop solar system in San Francisco typically runs $18,000 to $32,000 before incentives, and most installs we schedule in the city take two to four days of roof work once the permit clears. That’s the honest range, not a teaser number designed to get a signature. If you live in the Mission, Noe Valley, Potrero Hill, or any of the neighborhoods we cover, call Gus Petrakis at (877) 550-6892 and he’ll quote your system off your actual PG&E bill, not a brochure average. San Francisco is our home turf. We know its roofs, its fog, its building codes, and its inspectors, and that local knowledge changes what gets quoted, what gets permitted, and what actually produces power year after year.
What makes San Francisco different from every other solar market in the Bay is the fog. Not in some abstract, climate-science way, but in a which-block-are-you-on way. The Mission, Potrero Hill, and Noe Valley get meaningfully more annual sun hours than neighborhoods just two miles west, and a proposal built on a city-average irradiance figure will mislead you either way. Nobody should quote San Francisco solar without walking the actual roof line and checking the summer fog pattern for that specific parcel. That’s how we start every estimate.
Why Gus’s Solar Is San Francisco’s Preferred Solar Panel Installation Company
Gus Petrakis founded Gus’s Solar in 2011 and put his own name on the truck. He publishes his address, his license number, and he answers his own phone. For a city like San Francisco, where homeowners have been burned by door-knockers who vanish after the paperwork is signed, that changes the whole experience. You will not get a call center in another state. You will get a live person, 24/7, who knows what a Victorian roof in the Mission looks like and what it takes to get a permit through the Department of Building Inspection.
San Francisco customers have told us the same story for years: a national outfit quoted one number over the phone, then a different number at the door, then pushed for a signature that night. Our answer to that is the same every time: if a salesman needs an answer tonight, the answer is no. Bring us a bill, we’ll bring you the math. Take two weeks to think about it. The price will be the same when you call back. That standard, plus the 90-Day Done Right Promise on every solar job, is why our San Francisco reviews read differently than the industry average.
Every job in San Francisco is backed by our 90-Day Done Right Promise, in writing. If it’s not right, one call brings Gus back. No ticket queue, no subcontractor handoff. Gus’s own crew does the install. Background-checked, uniformed, and accountable to the guy whose name is on the building. That’s the L.O.C.A.L. code we operate by: Local roots, On time, Community first, Accountable, Loyal.
Our Solar Panel Installation Services in San Francisco
We cover the full Solar Panel Installation process for San Francisco homes, from the first roof assessment to the day PG&E flips the switch. Here’s what that looks like in this city.
Rooftop Solar Installation
Most San Francisco roofs are not the simple, comp-shingle slopes you see in the suburbs. We install on flat tar-and-gravel roofs in the Richmond and Sunset, low-slope modified-bitumen roofs in the Mission, and wood-framed row house roofs in Noe Valley that have been patched and re-patched since before the 1906 quake. Each roof type gets a different racking approach, a different flashing detail, and a different production model. We have installed enough rooftop solar across San Francisco to know which mounting system holds up to the wind coming off Twin Peaks and which one does not.
Solar System Design & Permitting
San Francisco’s Department of Building Inspection routes solar permits through an additional planning review if your property sits within a historic or conservation district, which covers a substantial share of the Victorian and Edwardian belt in zip codes like 94107 and 94109. That review can add weeks and sometimes forces design changes, like low-profile mounting systems that sit flush to the roof line so they are invisible from the street. We handle that entire process, and we know which neighborhoods trigger the extra review and which do not. If you are in a painted-lady row in Noe Valley, we will tell you at the first visit, not after the permit gets kicked back.
Solar Panel Replacement
Older systems installed during the early California Solar Initiative years, roughly 2007 to 2013, are now reaching the point where inverters fail, railings corrode in the salt air, and panels underperform. In San Francisco’s damp marine climate, we see more corrosion on roof penetrations and railings than in inland cities, and old string-inverter systems from that era were rarely built to handle the partial shading that fog and Victorian rooflines create. We replace those systems with modern microinverters or SolarEdge power optimizers, and we do the removal and reinstall without damaging the existing roof membrane.
Roof-Mount & Tile Roof Solar
A lot of San Francisco’s pre-1930s housing stock has original clay tile or slate-look roofing, and we replace broken tiles as part of the install rather than leaving you with a leaky patch job. Mounting on these roofs requires a different foot system than comp shingle, and the shared party walls on row houses mean we are careful about vibration and structural load on the common wall. These details rarely show up in a generic quote, but they are the difference between a system that causes a leak ten years in and one that does not.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Francisco
We work with the equipment we would put on our own roofs. That includes Enphase microinverters, which handle the partial-shade conditions of foggy San Francisco better than most string setups; Tesla Powerwall for the backup side of the system; and SolarEdge for homes that need a DC-optimized string design. We stock parts locally for San Francisco customers and we do not make you wait on a warehouse shipment from Arizona when an inverter faults. If you need Solar Battery Storage & Backup in San Francisco, we handle that on the same project so you are not dealing with two companies.
Common Solar Panel Installation Problems We See in San Francisco Homes
- Original 60-amp electrical services. The dominant pre-1930s Victorian and Edwardian row houses in San Francisco were built with 60-amp panels, and that is not enough headroom for a modern solar plus battery setup. We almost always recommend a panel upgrade before the solar interconnect, and we scope it into the quote so it is not a surprise change order.
- Fog-zone production expectations set wrong. San Francisco’s summers are its foggiest months. A system in the Outer Sunset will underproduce in June, July, and August compared to a national average, while clear winter days can outperform summer. We quote the year-25 output, not the day-one brochure number, and we model production using fog-zone-specific data for your actual block, not a citywide average.
- Roof penetrations on old tar-and-gravel or torch-down roofs. San Francisco has a huge inventory of flat and low-slope roofs that leak easily if the flashing is not done right. We flash every penetration properly and we back it with the 90-Day Done Right Promise in writing.
- Historic district permitting delays. If your house sits in a conservation district, the planning review adds weeks, and the city may require panel layouts that are not visible from the street. We handle this from day one so you do not get a system scoped, signed, and then delayed three months because nobody checked the district map.
Pricing for Solar Panel Installation in San Francisco, CA
We Also Serve Cities Near San Francisco
We work all over San Francisco, from the Mission District and Noe Valley to Chinatown and Visitacion Valley. If you own a home in any of those neighborhoods, or anywhere else in the city, the same crew and the same 90-Day Done Right Promise apply. And when your panels get salted over from the marine layer, we also handle Solar Panel Cleaning in San Francisco so your production stays where it should be.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco 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 - Solar Panel Installation in San Francisco
How fast can Gus’s Solar get to my home in San Francisco?
We can usually have someone at your San Francisco home within one to two business days for a site assessment, and we answer calls 24/7 with a live person, not a voicemail. For urgent issues, we can often come out same day if you are in one of the neighborhoods we serve like the Mission or Noe Valley. Call (877) 550-6892 and we will tell you straight when we can be there.
Do you cover all neighborhoods in San Francisco?
Yes. We serve the entire city, including the Mission District, Noe Valley, Chinatown, Visitacion Valley, Potrero Hill, the Richmond, the Sunset, and everywhere else in zip codes 94105, 94107, 94108, and 94109. If you are in a historic district, we will tell you exactly what the permitting process looks like for your block. Call (877) 550-6892 and we will confirm coverage for your address before you spend a dime.
Can you handle emergency solar issues in San Francisco?
We can, though true solar emergencies are rare. If a storm knocks a panel loose or an inverter faults and your production drops to zero, call us and we will send someone from Gus’s crew, not a third party. We answer the phone 24/7 and we do not route you through a ticketing portal. For a quick assessment, call (877) 550-6892.
Is solar cheaper in San Francisco than in nearby cities?
San Francisco tends to run slightly higher than some nearby cities because of the older housing stock, the prevalence of flat and low-slope roofs, and the additional planning review triggered by historic districts. You might see a $2,000 to $5,000 premium over a new-construction suburb, and most of that is racking, flashing, and electrical panel work, not the panels themselves. Call (877) 550-6892 for an exact quote off your bill, free.
What kind of warranty does Gus’s Solar offer on San Francisco installs?
Every solar job in San Francisco is covered by our 90-Day Done Right Promise in writing: if it’s not right, one call brings Gus back. Beyond that, we honor the full manufacturer warranties on the equipment and we stand behind our roof penetrations with the same standard. We have been serving local communities for over 29 years, and our reputation in San Francisco is built on showing up after the sale, not just before it.
If you are ready to see real numbers for your San Francisco home, call Gus Petrakis at (877) 550-6892. Bring us a bill, we’ll bring you the math. Take two weeks to think about it. The price will be the same.
Written by Gus Petrakis, Owner at Gus’s Solar, serving San Francisco since 2011.