Tony's Window Cleaning
714-559-0300
Tony's Window Cleaning
714-559-0300
Home/Solar Panel Cleaning
★★★★★ 5.0 from 23 Google reviewsExceptional sun. Exceptional dust. We handle the second part.
Purified deionized water, soft brushes, zero residue — and a full array inspection on every visit. Serving Victorville, Hesperia, Apple Valley, Adelanto, Oak Hills and Phelan.
There's a reason solar panel cleaning matters more in the High Desert than at the coast. Wind pushes fine grit off open land and unpaved roads, it settles on your glass, and unlike wetter parts of the state, we get almost no rain to wash it off again.
What makes it easy to ignore is that a dirty panel looks fine from the ground. Nothing breaks, no light comes on, no alarm goes off. Output just drifts downward month over month — and unless you're watching your production data, you won't notice. Most homeowners we clean for have never opened their inverter app.
How much output dust actually costs is worth being honest about. Independent research consistently finds soiling reduces production, and the size of the loss depends on how dirty the panels are and how long since the last rain. Low single-digit percentages are normal for lightly soiled panels; heavy buildup, bird droppings or a full season of desert dust push it substantially higher. We won't quote a specific number for your roof, because we'd be guessing — check your own production history after a cleaning and the panels will tell you themselves.
One more thing we find constantly: about half the arrays we open up in this region have birds living under them, and that's usually news to the owner. It's why every cleaning includes an inspection — and why solar cleaning and pigeon proofing are so often the same visit.
Panel glass has an anti-reflective coating. The wrong approach damages it permanently.
Tap water out here is hard — it dries into mineral spots that block light, which defeats the point. Our water is filtered and deionized so it dries with nothing left behind. No soap, no detergent, no residue for the next round of dust to stick to.
Never abrasive pads, never harsh chemicals, never a pressure washer. The coating on your glass stays intact and the warranty stays safe.
Glass, frames, mounting hardware and what's going on underneath the array. If something looks wrong we photograph it and tell you — including the birds that half these roofs are hiding.
Free quote · standard High Desert rates run $10–$12 a panel
If we're already on your roof for pigeon proofing, panel cleaning is bundled at a lower rate — the setup, drive and ladder work are already covered. That bundle is why most of our pigeon proofing customers get their panels washed as part of the job. Ask about our maintenance plan: semi-annual cleaning at a reduced rate, plus a free annual inspection of your pigeon barrier so the warranty stays documented.
Tell us your panel count and city and we'll get right back to you — usually the same day. Faster still: call or text.
Cleaning starts at $7 per panel. Standard rates in the High Desert run $10–$12 a panel, so we sit below market for the same professional purified-water method. Already booking pigeon proofing? Panel cleaning bundles at a lower rate since we're on the roof anyway.
No. Soft brush, purified water, water-fed pole. No pressure washing, no abrasives, no chemicals. Panel glass has an anti-reflective coating and we treat it accordingly.
It moves dust around and leaves hard water spots that block light. Tap water out here is mineral heavy and it dries onto the glass. Our water is filtered and deionized so it dries with nothing left behind.
Roof work has real risk and panels are easy to damage. If you do, use soft materials, no pressure, and go up early in the morning when the glass is cool — wet panels in full sun can crack from thermal shock.
Twice a year suits most High Desert homes — spring after the windy season, fall before the shorter days. More often near unpaved roads, construction, agricultural land, or if you have birds on the roof.
Yes — and they're usually quicker and cheaper since there's no roof access involved.
Look at your production data over the last few months and compare to the same period last year. If output is drifting down without a good reason, that's your answer.