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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.
Fast, Reliable Solar Panel Cleaning Across Sebastopol
Solar panel cleaning in Sebastopol typically runs $150-$325 for a residential array, and it’s usually done the same week you call. If your panels are coated in the fine gray film that rolls in off the Pacific through the Petaluma Gap, you’re losing production every day it sits there. Gus’s Solar has been cleaning panels on the Craftsman bungalows and ranch homes of Sebastopol long enough to know the grime here isn’t like the dust inland. Call (877) 550-6892 and a live person answers, not a voicemail tree.
Why Gus’s Solar Is Sebastopol’s Preferred Solar Panel Cleaning Company
Gus Petrakis has been running this outfit since 2011, and his name is on the truck, the invoice, and the warranty. That matters in a town like Sebastopol, where a handshake still means something and a company that disappears after the job doesn’t last long. Our Solar Panel Cleaning crew lives in Sonoma County, shops at the same hardware stores you do, and knows that a Craftsman roofline on Bodega Avenue needs different care than a 1970s ranch near Gravenstein Highway.
We answer calls 24/7 with an actual person. When a Sebastopol homeowner calls at 7pm because they just noticed streaks on their panels and want a straight answer, they get one. Not a call center. Not a ticket number. Gus answers locally, and his crew shows up in uniform, background-checked, and on time.
We’ve built our reputation in Sebastopol one roof at a time. Our customers can look up our license, our address, and our phone number. The 90-Day Done Right Promise applies to cleaning and critter guard work too. If we don’t do the job right, Gus comes back and makes it right. In writing.
Our Solar Panel Cleaning Services in Sebastopol
Residential Panel Cleaning
Homes in Sebastopol collect a specific kind of grime: fog residue, pollen from spring flowering, and the fine dust that blows in from fallow apple orchards west of town. We use soft-bristle brushes and deionized water systems that won’t leave mineral spots on your glass. Panels on the steep pitches of downtown Victorians need a ladder setup that respects the roofline, not a pressure washer crew blasting from the gutter line. A typical residential cleaning in Sebastopol runs $150-$275 depending on array size and roof access.

Commercial Array Cleaning
Local businesses with roof-mount or ground-mount arrays along the Gravenstein Highway corridor face a different problem: marine layer that sits on flat commercial roofs longer than it does on residential pitches. That lingering moisture breeds lichen and algae that standard rinsing misses. We bring the right chemistry for organic growth, scrub with non-abrasive pads, and flush with deionized water. Commercial cleaning in Sebastopol typically starts around $350 and scales with array size and roof walkability.

Bird & Critter Guard Installation
Sebastopol’s abundant trees and older housing stock make bird and squirrel intrusion a real production killer. During spring nesting season, pigeons and starlings love the shaded, protected space under panels on ranch homes off Bodega Avenue. Squirrels chew the wire insulation on older systems, especially the exposed runs on 2009-2015 installs. We install critter guard mesh that keeps them out without trapping any animal already under there. A standard guard install for a residential array in Sebastopol runs $250-$400, and it’s the cheapest insurance against a wire chewed through in winter.

Debris & Soiling Removal
After a wind event or a wet spring, Sebastopol panels collect a layer of leaf litter, pollen cake, and sometimes bird droppings that harden into stubborn spots. We remove debris by hand first, then clean with deionized water, then inspect each row for damage. If you live near downtown where the oaks and redwoods drop heavy spring debris, a post-spore cleaning pays for itself in the next billing cycle. Expect $175-$300 for a thorough debris removal and wash on a standard 20-panel roof array.

Scheduled Cleaning Plans
Many of our Sebastopol customers sign up for twice-yearly cleaning: once after pollen season in May or June, once after the first fall rains in November. In this microclimate, that’s the right rhythm for most arrays. We keep a schedule, show up on the day we say we’ll show up, and never make you chase us. A scheduled plan runs $140-$250 per visit, and we adjust the timing as the fog patterns shift year to year.

Post-Storm Panel Cleaning
When a fall storm blows in off Bodega Bay with salt spray and debris, your panels get a sticky brine film that doesn’t just rinse off in the next rain. We come out after the system dries, remove any wind-blown branches or shingle granules, and restore the glass to clean. Post-storm cleaning in Sebastopol runs $175-$325 depending on what the storm left behind.

What happens when you call
- 1
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 Sebastopol
We clean and maintain systems built on SunPower, REC, and Qcells panels, and we see plenty of older Qcells and SunPower modules on the 2009-2015 early-adopter rooftops across Sebastopol. If you have an aging panel that’s underperforming, we’ll tell you honestly whether cleaning is enough or if it’s time to replace. Our team works with Enphase, SolarEdge, Tesla, Panasonic, and other major equipment, so a cleaning visit can also become a health check on your inverters and monitoring. Call (877) 550-6892 and bring us your last true-up statement. We’ll do the math with you.
Common Solar Panel Cleaning Problems We See in Sebastopol Homes
- Fog-driven soiling on multi-pitch Craftsman and Victorian rooflines. The marine layer that funnels through the Petaluma Gap settles unevenly on steep, multi-angle roofs. Sections that stay in shade until mid-morning hold condensation longer, and that’s where lichen takes hold first. Standard brushing from the ground won’t reach these pockets.
- Flat sections near Bodega Avenue that breed algae. Low-slope roofs and the flat-ish portions of some ranch homes stay wet longer after fog. In winter, that’s a perfect nursery for green organic growth that standard panel washing skips right over. We use the right surfactant for it.
- Hidden production losses on older string-inverter systems. Homeowners with 2009-2015 arrays assume the system is “just old.” But a true-up statement showing a 9% drop from last year usually means cleanable soiling, not aging hardware. We’ve seen cleaning restore that production many times.
- Hardened bird nesting material under panels on ranch homes along Gravenstein Highway. Spring nests dry out over summer and turn into cement-like mats by August. By the time we’re called, the risk of scratching tempered glass during removal is real. We deal with it carefully, then install guards so it doesn’t happen again.
Pricing for Solar Panel Cleaning in Sebastopol, CA
What you’ll actually pay in Sebastopol:
- Residential array up to 20 panels: $150-$275
- Residential array 21-35 panels: $250-$325
- Commercial or ground-mount array: $350-$700+
- Bird & critter guard installation (residential): $250-$400
- Scheduled cleaning (per visit, with plan): $140-$250
- Post-storm cleaning: $175-$325
Factors that affect your specific price: roof pitch, number of stories, how much organic growth has taken hold, and whether bird debris needs removal first. We quote upfront, in writing, and the number we give you is the number you pay. The 90-Day Done Right Promise means if the clean isn’t done right, Gus comes back. Senior and veteran discounts of 10% never expire. Call (877) 550-6892 for a free estimate.
We Also Serve Cities Near Sebastopol
Gus’s Solar handles panel cleaning and critter guard work in Roseland, Larkfield-Wikiup, Santa Rosa, and Rohnert Park too. If you’re anywhere in our corner of Sonoma County, we’ll be there. Same crew, same 90-Day Done Right Promise, same live person on the phone. Call (877) 550-6892 and tell us where you are.
Serving Sebastopol, CA - Our Local Coverage Area
We’re based in the Sebastopol 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 Cleaning in Sebastopol
Twice a year is right for most Sebastopol homes: once after spring pollen drops in late May or June, and once after the first fall storms in October or November. Because the marine layer funnels through the Petaluma Gap and cuts peak sun hours, the production you lose to grime is a bigger share of what’s left. If you live west of downtown near the Bodega Avenue lowlands, you may want a third visit during a heavy fog year. Call (877) 550-6892 and we’ll help you set a schedule that matches your actual production data.
Often yes, if the drop is from soiling. We cleaned a 2012 Enphase M190 array on a Craftsman bungalow near downtown Sebastopol that had been underreporting for months. After removing the fog residue and pollen film, the homeowner’s true-up showed a 9% kWh offset gain, and we flagged two M190s that were failing intermittently before they tripped the whole array. But cleaning can’t fix a dead inverter. We’ll tell you which is which before we start. Call (877) 550-6892 for an honest assessment.
Nests must come out before we clean, and we remove them carefully by hand. On ranch homes along Gravenstein Highway, spring nesting material hardens into a dense mat under the panels over summer. Trying to clean around it leaves a shadow line and risks scratching the glass on removal. We remove the nesting, clean the panel surface, and install critter guard mesh so the birds don’t come back next spring. Call (877) 550-6892 to schedule a cleaning and guard install together.
Using a pressure washer. It seems like the fastest way to blast off fog grime, but it forces water into the seals between frame and glass, and it can crack tempered glass if a nozzle is too tight. The second mistake is using hard tap water from a well or municipal supply. Sebastopol water carries minerals that leave white spotting on the glass after evaporation. We use deionized water and soft brushes only. If you’ve already pressure-washed your panels and noticed streaks, call (877) 550-6892. We’ll do a proper restoration clean.
Yes, because every day your panels run dirty is a day you’re paying for electricity you could have made. In Sebastopol’s lower-sun microclimate, a 5% soiling loss is a bigger hit on the generation you actually get. Clean panels pay back your system faster, and for early-adopter systems from 2009-2015 that are long past their original warranty, keeping panels clean is one of the few variables you can still control. Call (877) 550-6892 and bring us a true-up statement. We’ll help you see where you’re losing and what cleaning can recover.
Ready to Get Those Panels Working Again?
If your Sebastopol array is covered in fog grime, pollen, or bird droppings, don’t wait for the next true-up bill to find out what it cost you. Call (877) 550-6892 now and a live person answers. We’ll give you a no-pressure price, schedule a time that works, and show up in a truck with Gus’s name on it. Estimates are free. The price we quote is the price you pay. And if it’s not done right, we come back and make it right.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Sebastopol with local crew since 2011.






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