Los Angeles is one of the harshest places in the country to own solar panels. Between the long dry season, coastal marine layer, freeway soot, pollen, dust carried in on Santa Ana winds, and the ash that follows wildfire season, panels here get dirty fast — and stay dirty, because it rarely rains enough to wash them off. Betty's Windows keeps your system clean so it keeps producing the power you paid for. We've been cleaning windows, glass, and solar panels across LA for years, and we treat every rooftop array like it's our own.
Why Dirty Solar Panels Cost You Money
Solar panels make electricity from direct sunlight. When a film of dust, smog, or bird droppings builds up on the glass, less light reaches the cells and your output drops — often by 15–25%, and even more in heavily soiled or shaded conditions. In a rainier climate, the occasional storm rinses panels off for free. In Los Angeles, we can go five or six months with almost no rain, so that grime just accumulates. Every month of reduced output is money left on the table and a longer payback period on your investment. Regular cleaning is the single easiest way to protect the return on your solar system.
Why Los Angeles Is Especially Hard on Panels
The marine layer that rolls in off the coast leaves behind a fine mineral residue as it evaporates. Urban smog and diesel soot settle on flat and low-tilt panels that don't shed dirt on their own. Pollen coats everything in spring, bird droppings can permanently etch the glass if left too long, and wildfire ash blankets rooftops across the region for weeks at a time. Homes near the 405, the 10, the coast, or mature trees see the worst of it. All of this is exactly why a scheduled cleaning routine matters more here than almost anywhere else.
What's Included in Our Solar Panel Cleaning Service
We clean panels the safe way — with purified, deionized water and soft brushes, never harsh chemicals or abrasive pads that can scratch the glass or void your manufacturer warranty. Deionized water dries spot-free, so there's no mineral residue left behind to attract more dirt. Our team works carefully on both rooftop and ground-mounted arrays, for homes and commercial buildings alike. While we're up there, we give your panels a quick visual once-over and let you know if we spot loose wiring, cracked glass, debris buildup, or anything that looks like it needs an installer's attention. You get clean, fully productive panels and peace of mind.
How Often Should You Clean Your Solar Panels?
For most Los Angeles properties we recommend a professional cleaning at least twice a year. If your home is near a freeway, the coast, heavy tree cover, or you're coming out of wildfire season, three to four times a year keeps output at its peak. We offer recurring maintenance plans so you never have to think about it — we just show up on schedule and keep your system running at full strength.
Areas We Serve
We provide solar panel cleaning throughout Los Angeles and the surrounding communities, including Highland Park, Eagle Rock, Glendale, Burbank, Frogtown, Hollywood, West LA, Santa Monica, Culver City, the San Fernando Valley, and Pasadena. Not sure if you're in our area? Give us a call and we'll let you know.
Get a Free Solar Panel Cleaning Quote
Clean panels pay for themselves in the power they recover. If your solar system isn't producing like it used to — or you just can't remember the last time it was cleaned — reach out today. Call Betty's Windows at [your phone number] or request a free quote through our site, and we'll get your panels back to peak performance.
