Solar panel cleaning to keep your array producing
Professional solar panel washing and maintenance for residential and commercial arrays: gentle cleaning, debris removal, inspections, post-storm cleanup and bird-proofing. Always with deionized water and soft brushes, never a pressure washer.
How dirty panels reduce output
Solar panels lose efficiency long before they look obviously dirty. In Southern California the culprits are constant: fine dust through the dry months, heavy tree and grass pollen in spring, wildfire ash, coastal salt film, and bird droppings. Droppings are the worst offender, because a single opaque spot can drag down the output of a whole string.
Because there's no rain for months at a time here, nothing washes it off. The loss is gradual, so most owners never notice until they compare production year on year.
We clean with deionized water and soft brushes or low-pressure rinse systems, so there's no scratching, no damage to seals, and no mineral residue left drying on the glass. And while we're up there, we check for shading issues, micro-soiling and hot spots.
Services included
- Full surface cleaning of solar glass and frames, removing residue, pollen, dust and bird droppings
- Deionized water rinsing for streak-free results with no chemicals (chemical cleaning available for stubborn residue)
- Mechanical removal of leaves, branches and nesting material from arrays and mounting rails
- Post-storm cleaning and inspection after hail, debris or heavy leaf fall
- Bird-proofing: mesh, exclusion strips, safe spikes and netting to stop nesting under panels
- Inspection for shading issues, micro-soiling and hot spots
- Commercial multi-site scheduling with photo documentation and production notes
Who this is for
- Homeowners with rooftop or ground-mounted solar
- Commercial and industrial arrays: warehouses, office rooftops and carports
- Property managers and HOAs supervising common-area solar assets
- Solar installers and maintenance teams needing periodic or post-storm cleaning
- Anyone seeing a sudden drop in production, or heavy pollen, dust or bird activity
Solar panel cleaning FAQs
Why shouldn't solar panels be pressure washed?
High pressure can scratch the anti-reflective coating, force water past the frame seals and damage the junction boxes and wiring. That can turn a cleaning job into a warranty problem. Panels need soft brushes and low-pressure or deionized rinsing, which is what we use.
How often should panels be cleaned in Southern California?
Once or twice a year suits most systems here. Go more often if you're under trees, near agriculture or heavy traffic, or if you have persistent bird activity on the roof.
Why deionized water?
Ordinary tap water leaves dissolved minerals behind as it dries, creating exactly the spotting that blocks light. Deionized water dries clean with no residue, so no detergent is needed for routine cleaning.
Can you stop birds nesting under the panels?
Yes. We offer bird-proofing with mesh, exclusion strips, safe spikes and netting, plus removal of existing nesting material. It's usually worth doing at the same visit as a clean.
Get a written quote within 24 hours
Most estimates come back in under 24 hours, often the same day. No pressure, and the price we quote is the price you pay.
- Upfront pricing. A written quote before any work starts.
- Licensed & fully insured. Certificates available on request for HOAs and property managers.
- 100% satisfaction guarantee. The job isn't finished until you're happy with it.
Prefer to talk it through? Call (562) 271-8681. We answer seven days a week, 7am to 7pm.
Request a quote
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