Solar Panel Cleaning in Perth
Safe for Your Panels, Safe For Your Warranty
Coates Window Cleaning provides solar panel cleaning across the Perth metro using purified, deionised water and soft brushes, with no detergents or chemicals that can damage panel coatings or void manufacturer warranties. Dust, bird droppings and traffic film restrict panel output, and regular cleaning restores it, with panels left completely spot-free by a fully insured, working-at-heights certified team.
The Quiet Thief On Your Roof
Solar panels fail loudly when they break, but they lose money quietly when they're dirty. Perth's dust, pollen and bird droppings build a film you can't see from the ground, and your system just produces less, month after month. You paid good money for those panels, and a proper clean is the cheapest way to get back what they're capable of, $7 to $10 a panel for most homes, full ranges on our pricing page.
And no, rain doesn't do it, rain deposits as much grime as it moves around. Whether your installer called it a solar system, a PV array or photovoltaic modules, the cleaning job is the same, getting your rooftop panels back to full output.
Most of the panels we clean sit on homes across Bayswater, Morley, Dianella, Mount Lawley, Yokine, Como and South Perth, with commercial arrays everywhere from Osborne Park down to Canning Vale.
Why Pure Water and Nothing Else
Panel manufacturers are blunt about this, harsh chemicals and abrasive cleaning can damage anti-reflective coatings and void warranties. Our method is deliberately gentle, the same purified water system we clean glass with, soft brushes, no pressure washing, no detergents. It's the cleaning your warranty documents would choose.
Before-and-after photos are available on request, and if we spot anything up there that doesn't look right, cracked glass, lifted cabling, birds setting up camp, you'll hear about it.
Cleaning Commercial Arrays Too
For businesses, schools and industrial sites we run scheduled solar maintenance with SWMS and compliance documentation supplied, quarterly programs for Perth's high-dust industrial zones and biannual cycles for most premises. The full details, including how we schedule large arrays, live on our commercial solar panel cleaning page.
Whichever side you're on, late winter is the smart time to book, clean panels going into Perth's high-yield spring and summer months earn their keep fastest.
Bundle It
Most of our solar customers add a window cleaning or gutter clean to the same visit, one call-out, one invoice, whole property sorted.
