Solar Panel Cleaning

Dust, pollen, and bird droppings quietly steal production — scheduled cleaning restores output and protects your warranty and your return on the array.

Technician cleaning a commercial rooftop solar panel array

What Solar Panel Cleaning Looks Like With Go Pro Works

In California's dry season, months can pass without meaningful rain while agricultural dust, wildfire ash, pollen, and traffic film build a haze across every module. Soiling losses commonly run in the high single digits and can climb far higher with bird droppings, lichen, or hard-water spotting — and unlike a hardware failure, it shows up as a slow, easy-to-miss revenue leak.

We clean with deionized, spot-free water and soft-brush or pure-water-fed pole methods that lift soiling without abrasives, harsh chemicals, or high pressure that could damage the anti-reflective coating, void a module warranty, or force water past a seal.

Service covers commercial rooftop arrays, ground-mount and carport systems, agricultural and warehouse installations, and residential rooftop solar. We can also clean and clear racking, remove nesting debris, and flag visible issues such as cracked glass, hot-spot discoloration, loose conduit, or shading growth so they can be addressed before they cost you production.

Most sites do best on a semi-annual or quarterly schedule tuned to local dust, tree cover, and bird pressure. We work with drone-assisted and pole-fed methods where roof access is limited, keeping technicians safely off steep or fragile surfaces.

Who this is for

  • Commercial rooftop and carport solar arrays
  • Agricultural and warehouse ground-mount systems
  • Property owners tracking production shortfalls
  • Homeowners with rooftop residential solar
  • Asset managers protecting module warranties

Frequently asked questions

What is included in a solar panel cleaning visit?
A full-array wash of the glass surface, removal of dust, pollen, bird droppings, and agricultural film, clearing of debris from the racking and gutters around the array, plus a visual check for cracked glass, delamination, loose clamps, hot-spot discoloration, and rodent damage under the panels.
How long does it take and how often should panels be cleaned?
A typical residential rooftop array is one to two hours. Commercial rooftop and ground-mount arrays are scheduled by array size, usually a half or full day. In the dusty Central Valley climate, twice a year is the usual rhythm, with agricultural and dairy-adjacent sites often better served quarterly.
What water and materials do you use on the glass?
Deionized or filtered water with soft brushes and telescoping poles so nothing abrasive touches the glass and no spotting is left behind. No harsh chemicals, no high-pressure spray on panel surfaces, and no walking on modules, which protects both the glass and your manufacturer warranty.
What do you need from me before the appointment?
Roof or array access, a water spigot if you would like us to use your supply, and a clear path around ground-mount rows. If your system has monitoring, pulling a production snapshot the week before and the week after is a good way to see the payback from the cleaning.
Can cleaning void my panel or roof warranty?
Our method is designed around manufacturer guidance: no pressure washing of modules, no abrasives, and no foot traffic on glass. If your installer has specific cleaning requirements, share them and we will follow that spec exactly.