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.
Fast, Reliable Solar Panel Cleaning Across Los Gatos
Solar panel cleaning in Los Gatos typically runs $180-$420 for a residential array, and most jobs are finished in under two hours. If your panels sit under redwoods or oaks in 95033 or upper 95030, expect to pay toward the higher end because of debris volume and roof pitch. We answer the phone at (877) 550-6892, we show up when we say we will, and we do not send a door-knocker to pressure you into a cleaning plan you do not need.
Los Gatos is not one market. It is three. The flat east side off Los Gatos Boulevard, the historic downtown grid around Santa Cruz Avenue, and the climb into the Santa Cruz Mountains. Each one has different soiling patterns, different roof access problems, and different fire-zone rules. Our crews know all three, because we work all three every week.
For a deeper look at what this service involves across the Bay Area, see our Solar Panel Cleaning page.
Why Gus’s Solar Is Los Gatos’s Preferred Solar Panel Cleaning Company
Gus Petrakis founded this company in 2011 and still answers his own phone. That is not a marketing line. Call (877) 550-6892 at 9pm on a Sunday and the person who picks up is Gus or someone on his crew, not a call center in another state. Los Gatos homeowners tell us that matters, especially after dealing with national outfits that vanish the morning after the install.
The 90-Day Done Right Promise applies to every panel cleaning and critter guard job we do. If something is not right, Gus comes back and makes it right. In writing. On every job. No fine print about “normal wear” or “acts of nature.” That promise means more on a 30-degree hillside pitch in 95033 than it does on a flat ranch roof in Campbell, and we treat it that way.
Our technicians are background-checked, uniformed, and they have been on Los Gatos roofs before. You know who is climbing your ladder before they arrive, because we tell you. No subcontractor roulette, no mystery crew.
All of which is why homeowners from the Almond Grove district to the Monte Sereno line keep our number saved. We are Solar Panel Cleaning in Los Gatos done by local people who live in the communities they serve.
Our Solar Panel Cleaning Services in Los Gatos
Residential Panel Cleaning
A typical residential cleaning in Los Gatos runs $180-$360 depending on panel count, roof pitch, and how much redwood duff has piled up since your last wash. We use deionized water and soft brushes. No high-pressure spray, ever. The microinverters on your roof in 95033 do not like water forced into their connectors, and neither does your production monitor at 2am.

Commercial Array Cleaning
Los Gatos has small commercial arrays scattered through downtown and the industrial pocket near Winchester Boulevard. We clean those too. A 50-100 panel commercial job on a flat or low-slope roof typically runs $500-$1,100. We schedule around your business hours so nobody is walking through a wet entry, and we carry the insurance certificates your property manager wants before we set a ladder.

Bird & Critter Guard Installation
Squirrels and pigeons love the space under a solar array, and Los Gatos has no shortage of either. Critter guard installation typically runs $6-$9 per linear foot, installed. For a standard 24-panel residential array, that usually lands between $450 and $800. The guard keeps nests out without blocking airflow, which matters more on hillside installs where every degree of panel temperature counts toward your production numbers.

Debris & Soiling Removal
Living under coast redwoods and valley oaks means your panels collect more than dust. Needles, acorns, sap, and the fine particulate that drifts over from Highway 17. Debris and soiling removal is included in our standard cleaning price, but heavy buildup on 95032 properties with large oaks may add $60-$120 to the job. We also clean the array perimeter, because the panel edges are where hot spots start.

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 Los Gatos
We clean and service every major panel brand you are likely to have on your Los Gatos roof. That includes Qcells, REC, SunPower, and Panasonic arrays, plus the Enphase microinverters and SolarEdge optimizers most hillside systems rely on. We know the connector types, the rail profiles, and the specific weaknesses of each mounting style, so we do not treat your REC Alpha Pure like it is a SunPower Maxeon. Same tools, different touch.
Common Solar Panel Cleaning Problems We See in Los Gatos Homes
- High-pressure washing on 95033 hillside systems. Owners think a power washer will knock off the redwood sap faster. What it actually does is force water under the microinverter connectors and trigger an arc-fault shutdown. That becomes a service call, which costs more than the cleaning did.
- Flatland crews on historic 95030 roofs. Water-fed pole systems work fine on a ranch house, but a 1920s Victorian off Santa Cruz Avenue has original composition shingles that cannot take the abuse. We use different access methods on those roofs, and we know when to say a roof is too fragile for anyone to walk on.
- Oak soiling so thick the panel edges never get clean. In 95032, tree-shedding oaks drop leaves, acorns, and windblown dirt in a crust that builds up along the lower edge of each panel. Seasonal cleanings that miss those edges leave hot spots, which accelerate degradation and drop your production below the warranty sheet’s year-25 output.
- Post-storm hazards on steep metal roofs. An atmospheric river hits, and suddenly every 95033 homeowner with a metal roof wants it cleaned that afternoon. A 30-degree standing-seam pitch without fall protection is how people get hurt. We bring the harnesses and the ridge anchors, and we turn down the job if the roof is unsafe. Any company that does not is not doing you a favor.
One example sticks with us. We cleaned a 42-panel Enphase IQ8 system on a steep hillside roof off Summit Road in 95033. Coastal fog and redwood debris had cut production to 68% of its modeled estimate. Our crew hand-washed each panel without ladders touching roof edges, then installed critter guard along the array’s lower skirt after finding squirrel nests under the panels. The post-clean Solargraf re-run showed a 27% production jump, and the owner’s next true-up statement cut their grid import by nearly half. That is what cleaning should do.
Pricing for Solar Panel Cleaning in Los Gatos, CA
Here are straight numbers for the Los Gatos market. A standard 20-30 panel residential cleaning on a single-story or walkable two-story roof runs $180-$320. Add a second story with steep access and you are at $280-$420. Critter guard adds $6-$9 per linear foot. Heavy debris removal beyond standard soiling adds $60-$120. Commercial arrays and the big hillside estates in 95033 are quoted per job after we see the roof, but most land between $500 and $1,200.
What moves the price in Los Gatos: roof pitch, panel count, how much tree debris sits on the array, and whether we need ridge anchors or a lift. Nobody gives you a real number over the phone without at least looking at satellite imagery, and anyone who quotes $99 flat for a hillside 95033 clean is either not cleaning much or will hit you with extras on the truck. We do not do either. Call (877) 550-6892 for a free estimate with the number we will actually charge.
We Also Serve Cities Near Los Gatos
Our crews work the whole West Valley corridor, from Los Gatos itself up into Saratoga, Campbell, the Communications Hill area, and San Jose. If you are just over the town line and wondering whether we will come out, the answer is usually yes. Call and ask.
Serving Los Gatos, CA - Our Local Coverage Area
We’re based in the Los Gatos 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 Los Gatos
Every 6 to 9 months, and right after any storm that drops significant branches or needles. The marine fog that spills over the Santa Cruz Mountain ridgeline leaves a fine residue that builds faster than flatland dust, and redwood duff does not wash off with a light rain. If your production monitor shows a drop of more than 10% from the same month last year, that is your cue. Call (877) 550-6892 and we will look at your numbers before we send a crew.
The town does not issue a permit for cleaning, but fire hazard zone rules still apply to how you access the roof and what you leave behind. CAL FIRE Very High Fire Hazard Severity Zones in 95033 and upper 95030 require defensible space clearances. That means clean panels are actually part of your fire compliance, and any cleaning crew that stacks debris or leaves needle piles inside your setback is creating a problem, not solving one. We haul everything off the property. We also keep ladders off roof edges and never leave anything that could become flying ember fuel in a wildfire.
Yes, directly and expensively. Squirrels chew through the DC leads and communication wires, and their nests trap heat against the microinverter housing. On a 95033 hillside system where every production hour already has to fight fog shade, that heat loss is lost money. We have opened arrays where a squirrel nest had chewed through three Enphase trunk cables in a single season. The fix is critter guard, installed correctly along the entire array skirt. Not the half-installed stuff that leaves the corners open, which is where squirrels get in.
Because your original estimate was probably modeled on regional averages, not your actual tree cover and fog hours. Los Gatos hillside properties in 95033 can lose 15-20% of annual production compared to a flatland Campbell estimate, simply from redwood shade and marine layer hours that a generic solar proposal never factored in. A cleaning restores what soiling robbed, but it cannot fix a bad initial model. If the original installer used a brochure rather than your actual bill, the number you were sold was optimistic from day one. That is why Gus quotes year-25 output off your real utility usage, not a sunny-day sales figure.
The access, the roof, and the fire rules. Campbell is mostly single-story ranch and two-story tract homes with walkable composition roofs. Los Gatos’s 95030 hills include steep tile and standing-seam metal roofs on pitches that require fall protection, and the properties sit inside fire hazard zones where defensible space governs how we work. A Campbell crew using a water-fed pole from the driveway cannot safely or effectively clean a 30-degree hillside array in Los Gatos. That is why we send our own people, why we carry the right rigging, and why we quote hillside jobs honestly instead of pretending it is the same hour of work.
Give us a call at (877) 550-6892. Tell us your address, your panel count, and what your production monitor is showing. We will quote the cleaning in real numbers, and if you want, we will also flag anything that looks like a fire-zone compliance problem while we are on the roof. Estimates are free, and nobody will ask you to sign anything tonight.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Los Gatos and the West Valley since 2011.






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