Why it matters
Dirty panels are quietly cutting your power production
Photovoltaic panels only produce at full strength when sunlight reaches the cells. Soiling gets in the way: dust, pollen, bird droppings, tree sap, algae and moss near shaded eaves, and the fine haze of air pollution that settles over the valley. Around here the soiling rate climbs all summer because it simply does not rain, and your system output slides a little further each dry week.
How much? NREL field data puts soiling-related performance loss as high as 21% on residential arrays in dry climates. Your inverter reports the shortfall every day; most homeowners never open the app to see it. To put a dollar figure on your own roof, run the solar panel ROI calculator. Thirty seconds. Real numbers.
Winter rain does not fix it either; it dries into hard water spots and mineral deposits, trading one film for another.
How we do it
How our solar cleaning crew does it
There is one right way to clean a solar array: the method panel manufacturers describe in their care guidelines.
- Inspect every panel. Cracks, chips, failed seals, anything a cleaning could make worse. We flag issues with you before work begins.
- Wash with deionized water and a soft brush. Our purified water system strips the minerals out of the water, so it dries without spots. The water-fed pole and soft brush lift grime off the glass without scratching it.
- Spot-free rinse. Pure water needs no squeegee and no microfiber buff. It sheets off clean. Think of it as soft washing, but for glass.
- Streak check before we leave. We make sure there's no streaks before we leave. That is our satisfaction guarantee, and we hold to it on every job.
No harsh chemicals. No mild detergent, even; soap leaves residue that attracts dust faster. And never high-pressure spraying. We are a pressure washing company, and we will not put a pressure washer anywhere near your panels. Pressure washing and abrasive brushes are how panel coatings get ruined and warranty claims get denied.
What it costs
Solar panel cleaning prices
Upfront pricing, published right here. As of July 2026:
| Job | Price |
|---|---|
| Solar panel cleaning | $15 per panel, $200 minimum |
| Difficult roof access or heavy buildup | +20% |
| Very difficult access, very heavy buildup | +35% |
| First 15 round-trip miles | Included |
| Bundle gutter cleaning, window washing, or other exterior cleaning | Save about 10% |
The pricing factors are simple: panel count, accessibility, and how much grime is on the glass. A typical 20-panel roof runs about $300. No upsell. Want a fast quote? The cost calculator uses these exact rates. Commercial solar panel cleaning is quoted custom; call us for a consultation.
July 2026 special
$30 off plus a free roof and gutter inspection with every solar panel cleaning booked by July 31. Mention code SOLAR30.
Any array
Roof-mounted, ground-mounted, steep, two-story: we clean it
Residential solar panel cleaning is our core work, and roof-mounted panels are where most companies get sketchy, because roof access is the hard part. Our safety-first process covers fall protection and ladder safety on every job, whatever the roof pitch. Tile roof, composition shingles, metal roof, skylights, a two-story roof with a PV system split across three faces: our solar cleaning crew handles all of it. Ground-mounted panels get the same deionized wash and usually land right at the minimum.
Straight answers
What we don't do (and why that protects you)
Some solar panel cleaners will sell you whatever you ask for. We would rather be straight with you:
- We don't install bird proofing or critter guard. If our inspection turns up nesting or debris under your panels, we tell you, and you bring in a specialist.
- We don't run a maintenance plan yet. Cleaning once or twice a year is right for most homes; we send free service reminders when your roof is due.
- We don't touch the electrical. Your inverter and microinverter stay untouched; there is no need to turn off the solar panel system for an exterior wash.
Everything we do stays inside manufacturer guidelines, which keeps your warranty intact.
Service area
Where we clean
We are locally owned and operated in Rocklin and serve all of Placer County, plus Granite Bay, Lincoln, Loomis, and Citrus Heights. Searching for Roseville, CA solar panel cleaning? We cover solar panel cleaning in Roseville neighborhood by neighborhood, and Rocklin homeowners have their own Rocklin solar panel cleaning page. On "licensed and insured": California has no license for cleaning work, so ask any company for proof of liability insurance instead. We carry it and we'll show you.
Common questions