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 San Anselmo, CA
If you live in San Anselmo and your PG&E bill keeps climbing while your roof bakes in the afternoon sun, you’re probably wondering whether solar actually works on an older Marin County home with big trees and a steep roof. The short answer: yes, in most cases it does work, but San Anselmo has specific shade, roof pitch, and electrical panel challenges that flat-land solar companies don’t account for until they’re standing in your driveway. Gus’s Solar has been navigating those exact challenges for years, and we answer the phone at (877) 550-6892 when you call.
We schedule San Anselmo work six days a week, we know the town’s permit rhythms, and we’ll give you an honest read on whether your property is a good solar candidate before you spend a dime.
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 San Anselmo Homeowners Choose Gus’s Solar
There are a lot of solar outfits that will knock on your door in San Anselmo, quote you a number, and hand you a tablet to sign on the spot. If a salesman needs an answer tonight, the answer is no. That’s not how Gus Petrakis works. Gus founded this company in 2011 and never stopped answering his own phone. He publishes his name, address, and license number, and he’s the one who shows up when something isn’t right.
We hear from homeowners in the Seminary and Sleepy Hollow neighborhoods fairly often, and the feedback is consistent: they like knowing the crew on their roof is background-checked, uniformed, and employed by Gus, not a subcontracted crew from outside the county. Calls are answered by a live person 24/7, not a voicemail. And every job carries the 90-Day Done Right Promise in writing. If it’s not right, Gus makes it right.
Gus’s own crew does the install. The price quoted is the price charged. We build the math off your actual utility bill, not a brochure estimate. Bring me a bill, I’ll bring you the math.
Solar Services We Offer in San Anselmo
Solar Panel Installation in San Anselmo
Our Solar Panel Installation - San Anselmo team designs and installs rooftop solar systems sized to your actual usage history, not a generic county average. On San Anselmo’s older wood-frame homes with complex rooflines, we plan panel layout around dormers, valleys, and shade before the first permit is pulled.
Learn more about our Solar Panel Installation in San Anselmo.

Solar Battery Storage & Backup in San Anselmo
PG&E shutoffs in the Ross Valley are a real thing, especially during fall wind events. San Anselmo Solar Battery Storage & Backup keeps your refrigerator, lights, and medical equipment running when the grid drops.
Learn more about our Solar Battery Storage & Backup in San Anselmo.

Solar Panel Cleaning in San Anselmo
Between the oak pollen in spring, redwood duff in summer, and dust from the valley floor, San Anselmo panels collect buildup that quietly cuts output. Our San Anselmo Solar Panel Cleaning service handles panels safely on steep pitches and checks for debris around all mounting points.
Learn more about our Solar Panel Cleaning in San Anselmo.

EV Charger Installation
If you’re adding an electric vehicle to a 1920s Craftsman with a 100-amp panel, you’ll likely need a load calculation and possibly a panel upgrade first. We handle the whole EV Charger Installation in San Anselmo, from permit to plug.

Solar Panel Maintenance & Monitoring
Solar systems don’t need much, but they do need someone watching the numbers. Gus monitors your production and calls you when output dips, so you don’t discover a failed microinverter on a quarterly bill.

Solar Panel Repair
Whether it’s a cracked panel, a failed inverter, or wiring chewed by roof rats, we diagnose it and fix it. We carry parts for the major brands we install, including Panasonic, Canadian Solar, and JinkoSolar inverters and modules.

Commercial Solar Installation
San Anselmo’s commercial buildings along Sir Francis Drake Boulevard and downtown have flat or low-slope roofs that often work well for ballasted solar arrays. We handle commercial design, permitting, and installation without interrupting your business.

Neighborhoods We Serve in San Anselmo
We work across the full 94960 and 94979 zip codes. Typical response time for a service call in San Anselmo is same-day or next-day depending on when you call. We’re regularly in these neighborhoods:
- Sleepy Hollow
- The Seminary area
- Downtown San Anselmo near Creek Road
- Lansdale
- Yolanda Station
Why San Anselmo’s Climate & Housing Affect Solar
San Anselmo sits in a narrow Ross Valley bowl flanked by steep hillsides. That geography means homes on north-facing slopes or tucked against ridgelines lose significant seasonal sunlight, a problem that does not show up in standard satellite-based solar tools. A site assessment that passes in flat San Rafael can fail half a mile up a San Anselmo canyon, where the ridgeline to the south cuts off direct sun in December and January, when the sun angle drops below 30 degrees.
Compounding this, the town’s dense mature redwood and oak canopy is protected under Marin County tree ordinances that routinely block trimming permits. Many San Anselmo properties that look sunny on aerial imagery are effectively solar-dead without tree removal that neither neighbors nor the town will approve. We tell you this before you spend money on design work.
Pricing for Solar in San Anselmo
Here’s what we typically see in San Anselmo:
- Residential solar installation: $16,000 - $32,000 before incentives, depending on system size and your home’s electrical condition
- Battery backup added to a solar system: $9,500 - $16,000 installed, depending on capacity
- Panel cleaning (up to 20 panels): $180 - $300, more for steep roofs or difficult access
- Repair work: $200 - $2,000+ depending on the failed component. We offer $40 off any repair over $200, and a senior and veteran 10% discount that never expires.
Your final number depends on roof pitch, the condition of your main panel, and how much sun actually reaches the roof plane. We’ll tell you the quote, then tell you to take two weeks. Think about it. The price will be the same.
Service Area - Cities Near San Anselmo
We also serve homeowners in Fairfax, Kentfield, San Rafael, and Larkspur. If you’re just over the town line, call us and we’ll sort out if we can help.
Serving San Anselmo, CA - Our Local Coverage Area
We’re based in the San Anselmo 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 San Anselmo
Yes, in most cases we can. The job often becomes a multi-trade project involving a panel upgrade to 200 amps and possibly rewiring if your home still has knob-and-tube wiring. Steep 7:12 or steeper roof pitches are workable but add labor time. The town’s permit desk keeps a checklist specifically for these older-home solar jobs, and we know our way through it. Call (877) 550-6892 for an honest assessment.
San Anselmo gets more annual sun than Sausalito or Mill Valley because the valley burns off the marine layer faster. But a single mature oak or redwood on the south side of your house can kill a full array’s output. We do a physical shade assessment, not just a satellite glance, before quoting a system size. Tree removal is often blocked by Marin County ordinances, so we design around the canopy that stays.
If the panels are less than a decade old and the issue is a failed inverter or a wiring fault, repair is usually the better financial move. If the panels are pushing 20 years and output has degraded below 80% of the original rating, replacement starts to make more sense. We’ll show you the numbers either way. Call (877) 550-6892 and we’ll come take a look, no trip charge inside our own county.
That depends on your roof orientation and your own preference. On many San Anselmo Craftsman and Victorian homes, we can place panels on the rear or side roof planes, keeping the street-facing facade clean. Some homeowners prefer front-facing panels as a visible statement, and that works too. We’ll show you a layout image during the quote so you know exactly what you’re getting.
Usually yes, especially if you call before mid-afternoon. We schedule estimates Monday through Saturday across San Anselmo and the surrounding Ross Valley. Call (877) 550-6892 and a live person answers. There’s no trip charge inside our own county, and you don’t have to decide anything tonight. Take two weeks. The price will be the same.
Get a Free Estimate for Solar Services in San Anselmo
If you’re ready to see real numbers built off your actual PG&E usage, call Gus’s Solar at (877) 550-6892. We’ll come out to San Anselmo, look at your roof, check your panel, and give you a written quote you can sit with for as long as you need. No signature wanted tonight. No pressure. Just the math, and a name you’ll see again at the hardware store.
Written by Gus Petrakis, Owner at Gus’s Solar, serving San Anselmo 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 San Anselmo Customers Say
"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"The install itself was excellent and the system performs as modelled. Permitting and the utility interconnection took about four months, most of it out of his hands, though the waiting was still frustrating."
- Marguerite Ostrowski






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