Solar Panel Cleaning in San Dimas & Southern California
Residential Services › Solar Panel Cleaning
Solar Panel Cleaning in San Dimas & Southern California
Pure-water solar panel cleaning for homes and businesses. We remove dust, pollen, bird droppings and ash so your panels get full sunlight again, with no high pressure and no harsh chemicals.
Dirty Panels Make Less Power
Dust, pollen, ash and bird droppings build up a film that blocks sunlight from the cells. It happens slowly, so most owners only notice when the monthly production numbers drop. In our dry climate, rain rarely rinses panels clean and often leaves spots behind.
We clean with purified water that dries without mineral spots and soft brushes that will not scratch the glass. No high-pressure washing and no chemicals that could affect the panel surface.
- Residential rooftop systems
- Commercial, HOA and multifamily arrays
- Purified water, spot-free rinse
- Soft brushes, no high pressure
- Bird droppings and ash removed
- Before-and-after photos
How We Do It
1. Quote by panel count
Tell us roughly how many panels and the roof type. We send a written price.
2. Safe access and cleaning
We set up safe roof access, then clean each panel with soft brushes and purified water.
3. Check the result
We inspect the array for spots or missed areas and send before-and-after photos.
Why Clean Your Solar Panels
More output
Removing the dirt film lets more sunlight reach the cells, usually with a difference right away.
Protect the investment
Even buildup and bird spots can cause uneven heating across a panel over time.
No spotting
Purified water rinses clean and dries without mineral marks.
Safe for the glass
Soft tools only. No pressure washers and no harsh chemicals.
Commercial arrays too
We clean large arrays for businesses, HOAs and multifamily. See our commercial solar cleaning.
Local crew
Based in San Dimas and working across LA, San Bernardino, Riverside and Orange counties.
Recent Solar Panel Cleaning Work
Real photos from Foothill Pressure Washing jobs.
Solar Panel Cleaning by City
Local pages for the cities where we clean solar panels most often. Don’t see yours? We likely cover it — call or text (909) 323-6122.
San Gabriel Valley
Pomona Valley & Inland Empire
North OC & Riverside County
Good to Know Before We Start
We put this in writing on every estimate so there are no surprises.
- Solar cleaning is a surface cleaning service, not an electrical, repair or production service.
- We cannot guarantee a specific increase in energy output or savings.
- Cracked glass, failed seals, wiring, inverter and mount problems are not part of cleaning.
- Etching, paint, cement or bonded construction debris may not come off with standard cleaning.
Solar Panel Cleaning FAQ
How often should solar panels be cleaned?
In most of Southern California, every six to twelve months. Homes near open land, construction, freeways or heavy bird activity may need it more often.
Can I just hose off my panels?
A hose removes loose dust but not the film or bird droppings, and tap water can leave mineral spots that block light.
Do you use chemicals or pressure washers on panels?
No. We use purified water and soft brushes only.
Will I see more power after cleaning?
Clean panels can absorb more sunlight, and many owners see a difference in their monitoring app. We cannot guarantee a specific increase in output or savings, since that depends on your system.
Do you clean commercial solar arrays?
Yes. We clean arrays for businesses, HOAs, multifamily properties and new build communities.