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 South San Francisco, CA
Solar in South San Francisco costs more than a brochure number, because the wind and fog here change what equipment actually works. A properly specified system for a 94080 or 94083 home usually runs from $16,000 to $34,000 before incentives, depending on panel count, battery inclusion, and whether your 1950s panel needs replacing first. We quote off your actual PG&E bill, not a sunny-day estimate. Call (877) 550-6892 and we’ll come look at your roof, your meter, and your usage and give you a number you can take two weeks to think about.
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 South San Francisco Homeowners Choose Gus’s Solar
Gus Petrakis puts his name on the truck, his phone number on the quote, and his own crew on your roof. That matters in South San Francisco, where the housing stock is older, the wind is real, and the wrong racking spec means a system that underperforms for 25 years. We’ve worked on the post-war stucco ranches off Westborough and the hillside streets above El Camino Real where a south-facing pitch looks ideal on satellite imagery but gets shadowed by San Bruno Mountain from November through February. Gus’s crew does the install. No subs, no call center, no door-knocker with a laminated price sheet.
Every solar job we do in South San Francisco carries the 90-Day Done Right Promise in writing. If it’s not right, Gus makes it right, and one call brings him back. We answer the phone live, 24/7, because a monitoring alert on a foggy Tuesday morning should reach a person, not a voicemail. Seniors and veterans get 10% off, always, no expiration.
Solar Services We Offer in South San Francisco
Solar Panel Installation
We design systems for South San Francisco’s actual sun hours, which the marine layer cuts down more than PVWatts assumes. Roof orientation, panel tilt, and racking rated for San Bruno Gap winds all get spec’d before we ever send a crew. Learn more about our Solar Panel Installation in South San Francisco.

Solar Battery Storage & Backup
The grid here sees wind-related outages every year, and a FranklinWH or Tesla Powerwall keeps your lights on when the lines go down. We size batteries to your actual overnight load, not a generic “one size fits most” pitch. Learn more about our Solar Battery Storage & Backup in South San Francisco.

Solar Panel Cleaning
Fog plus freeway dust off 101 leaves a film on panels that cuts production measurably. We clean them properly, with the right equipment and no abrasive shortcuts. Learn more about our Solar Panel Cleaning in South San Francisco.

EV Charger Installation
Most South San Francisco garages were built before anyone imagined a 48-amp charger on the wall. We handle the panel assessment, the run, and the permitting for your EV Charger Installation - South San Francisco so it works the day it’s installed.

Solar Panel Maintenance & Monitoring
We watch system output and flag drops before they become repair bills. If your production dips, Gus calls you. Not a portal, not a newsletter, an actual phone call.

Solar Panel Repair
Microinverters fail, connections corrode in coastal air, and squirrels chew wiring under ridge caps. We diagnose and fix it, and right now $40 off any repair over $200 applies in South San Francisco.

Commercial Solar Installation
Warehouses and industrial rooftops in South San Francisco have flat roofs and big loads. We design commercial arrays that pencil out on year-25 production, not year-one hope.

Neighborhoods We Serve in South San Francisco
We work all over town, from the flat streets near Grand Avenue to the hillier spots up toward Sign Hill. Typical response time in South San Francisco is same-day for monitoring alerts and within 24 to 48 hours for scheduled service calls.
- Westborough
- Terrabay
- Sunshine Gardens
- Old South San Francisco (Grand Avenue corridor)
- Paradise Valley
Why South San Francisco’s Climate & Housing Affect Solar
South San Francisco sits right in the San Bruno Gap wind corridor, where afternoon onshore winds regularly hit 25 to 35 mph. That’s among the strongest sustained wind on the entire Peninsula, and it means installers who spec standard racking from a warehouse in Sacramento are gambling with your roof. We use heavier racking hardware here than we would in San Mateo or Redwood City, because the wind load is genuinely different. The marine layer stacks on top of that: South San Francisco stays significantly foggier than towns just a few miles south, so your annual kWh production will come in lower than a generic “Bay Area” PVWatts estimate. We plan for that number honestly, so year 25 looks like what we quoted, not a rounding error from an out-of-town design tool.
The housing stock adds one more wrinkle. Most of the homes here are post-WWII tract builds from the late 1940s through the 1960s, put up fast for shipyard and industrial workers. They’re solid, but they almost always have aging 100-amp electrical panels. PG&E will not approve a net-metering interconnection until that panel is upgraded, and that upgrade is a real cost that out-of-area contractors often “discover” mid-install. We tell you about it at the first site visit, so the quote you get is the price you pay. No surprises, no change orders, no “we found something under the stucco.”
Pricing for Solar in South San Francisco
Here’s what solar actually costs here, before incentives:
- Panel-only system (no battery): $16,000 to $24,000, depending on roof size and panel count
- Panels plus battery storage: $24,000 to $34,000, with battery chemistry and capacity driving most of the spread
- Service panel upgrade (if needed): $3,500 to $6,500, and in South San Francisco’s older housing stock, that’s the norm rather than the exception
- EV charger installation: $1,200 to $3,000, depending on run length and panel capacity
- Solar panel repair: $200 to $800 for most jobs; right now $40 off any repair over $200
Bring us your PG&E bill and we’ll build the math off your actual usage and current export rates. If a salesman needs an answer tonight, the answer is no. Our price holds for two weeks. Call (877) 550-6892 for a free estimate.
Service Area - Cities Near South San Francisco
Gus’s Solar serves the whole upper Peninsula. We work in San Bruno, Daly City, Millbrae, and Visitacion Valley, plus every street in between. Same crew, same standards, same phone number.
Serving South San Francisco, CA - Our Local Coverage Area
We’re based in the South 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 About Solar in South San Francisco
A panel-only system in South San Francisco typically runs $16,000 to $24,000 before incentives, and adding battery storage brings it to $24,000 to $34,000. The biggest variable here is your electrical panel: most post-war homes in 94080 and 94083 need a panel upgrade before PG&E approves interconnection, which adds $3,500 to $6,500. Call (877) 550-6892 with your PG&E bill and we’ll give you an exact number, free.
Yes, and more than most installers admit. The marine layer that parks over South San Francisco measurably cuts peak sun hours compared to San Mateo or Redwood City, so a system sized off a generic Bay Area estimate will underproduce every year. We quote the year-25 output, not the day-one brochure number, and we factor in San Bruno Mountain’s shadow arc on hillside homes above El Camino Real. Call (877) 550-6892 for a free estimate that reflects this city’s actual sun.
We do it regularly. The roof structure on those post-war tract homes is usually sound, but the 100-amp electrical panel is almost always too small for PG&E’s current interconnection requirements. We flag that at the first site visit and include the panel upgrade in your quote so there’s no mid-project surprise. Call (877) 550-6892 and we’ll assess your specific home.
You don’t strictly need one, but the San Bruno Gap wind corridor knocks out power here more often than most of the Peninsula, and a battery keeps your refrigerator and lights running when it happens. Our South San Francisco Solar Battery Storage & Backup options include FranklinWH, Tesla, and Enphase batteries sized to your overnight load so you’re not paying for storage you won’t use. Call (877) 550-6892 to talk through whether a battery makes sense for your home.
After we finalize the design and pull permits, most South San Francisco installs take two to four days on-site. Your utility’s interconnection approval is the timeline wildcard, not the installation itself. Call (877) 550-6892 and we’ll walk you through the full schedule before you sign anything.
Written by Gus Petrakis, Owner at Gus’s Solar, serving South San Francisco and the upper Peninsula with straight answers and honest numbers.
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 South San Francisco Customers Say
"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"Four different companies knocked on my door in one summer and every one of them wanted a signature that evening. Gus has a shop with his name on it, gave me the numbers on paper, and told me to take a fortnight and think about it."
- Winifred Castellano"Honest quoting and good workmanship. He is not the cheapest quote I got, by some way, and he told me that himself and explained what the difference bought. I chose him anyway and I am glad."
- Alistair Fennimore






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