Dust, pollen, bird droppings and traffic film all sit between the sun and your panels — and studies consistently show soiled panels lose meaningful output, with heavy soiling costing far more than the price of a clean. If your system's generation figures have drifted down since installation, dirt is the most likely and cheapest thing to fix.
Panels must be cleaned correctly: tap water leaves mineral deposits, detergents can void manufacturer warranties, and pressure washers can crack cells and seals. We use soft brushes and deionised water only — the method panel manufacturers themselves specify — so your warranty stays intact and the glass dries spotless.
It depends how dirty the panels are. Lightly soiled panels might gain a few percent; panels with bird droppings or heavy grime can regain much more. We photograph the panels so you can compare your inverter figures before and after.
No — quite the opposite. Manufacturers specify cleaning with pure water and soft brushes, which is exactly what we use. Pressure washing or harsh detergents are what put warranties at risk.
Most Sydney systems benefit from an annual clean. Near main roads, under flight paths of birds, or close to construction, every 6 months keeps output up.
We provide solar panel cleaning across Greater Sydney, including:
Same-day quotes, 7-day availability, fully insured. Tell us your suburb and we'll take it from there.
Same-day response · No obligation · Or call 1300 111 303
