LA solar panels live in some of the dirtiest conditions in the country. Dry-season dust, smog, marine-layer mineral deposits, wildfire ash, bird droppings, and Santa Ana wind grit all settle on glass and quietly suppress how much energy your system actually produces. Trip’s Windows cleans solar panels with the same care we bring to your windows — deionized water, soft brushes, and zero shortcuts. The output you paid for, restored.
Solar systems in Los Angeles work against a particularly aggressive set of conditions. The dry season runs nine months — long stretches without rainfall mean dust accumulates on panel glass with nothing to wash it off. Smog and particulate from the LA basin settle as a fine film that reduces transmission of sunlight to the silicon below. Marine layer along the coast deposits mineral residue that the morning sun bakes onto the glass. Bird droppings create permanent shading on individual cells — and because solar panels are wired in series, a single droppings-covered cell can suppress an entire string’s output.
Then there’s wildfire season. Ash and soot from regional fires land on panels across the LA basin even when fires are nowhere near the home. Ash sticks aggressively to glass and is one of the single biggest causes of measured output loss in our local market. After Santa Ana wind events, the same fine grit that ends up on your windows ends up on every panel of your array.
Research from sources including the National Renewable Energy Laboratory has measured 15–25 percent output loss from soiling on typical residential systems. LA conditions push toward the higher end of that range. Twice-a-year cleaning — or quarterly for coastal homes, wildfire-adjacent properties, or commercial systems where every kilowatt-hour matters — pays for itself in restored production.
Deionized water, soft brushes, panel-by-panel attention.
We clean with deionized (DI) water filtered through a portable system. DI water lifts dirt and dries spot-free without the hard-water mineral spotting that tap water leaves behind on glass.
Non-abrasive natural-bristle and microfiber brushes mounted on water-fed poles. Reaches roof-mounted arrays safely without anyone walking on panels or roof tile.
Dried droppings and ash are spot-treated before the rinse pass so we lift them without scrubbing aggressively against the anti-reflective coating that’s baked into modern panel glass.
We clean the aluminum frames around each panel and the mounting rails underneath where leaves and bird debris collect. Keeps drainage paths clear and prevents debris from blowing back onto clean panels.
While we’re on the roof, we visually check for cracked panels, loose wiring conduit, lifted flashing, or hot-spot discoloration. If we see anything, we tell you — even if it’s outside our scope.
Before/after photos of your array delivered by email. Useful for monitoring system health and for tracking the visual difference between cleanings.
Coast, wildfire exposure, and bird traffic dictate the rhythm.
Twice yearly. One spring cleaning after winter rain has done what it can, and one fall cleaning before the dry-season output peak ends and Santa Ana wind season begins.
Quarterly for homes within a couple miles of the ocean (Venice, Santa Monica, Manhattan Beach, Palos Verdes). Marine-layer mineral deposition accelerates buildup year-round.
Plus post-event cleaning. Calabasas, Bel Air, Pacific Palisades, and other WUI properties should get an additional cleaning after any major fire event with ash deposition.
Quarterly to monthly depending on system size and exposure. For commercial installations, even single-digit-percentage output loss compounds into significant revenue, so tighter intervals pay back fast.
Deionized water and soft brushes only. No pressure washing of panel glass. No abrasive cleaners. No shortcuts that could void your warranty or damage anti-reflective coatings.
Most of our solar customers add it onto their existing recurring window cleaning. One visit, one invoice, one crew you already know — and a better flat rate than booking separate visits.
After major LA-area fires, we prioritize existing solar customers for ash cleaning. Output drops fast after ash deposition and we know how much energy production matters during recovery.
Solar cleaning is part of our regular LA route network. No travel fees, no minimums beyond a standard service call, same scheduling speed as our window work.
Every job ends with before/after photos. Useful for tracking system health over time and for documenting maintenance for insurance, warranty, or resale purposes.
General liability and workers’ comp coverage on every visit. We provide COIs on request for HOAs, commercial property managers, or warranty documentation.
Free estimate. Manufacturer-safe deionized-water cleaning. Bundle with window cleaning, gutter cleaning, or pressure washing and save.