Solar panel cleaning problems: what can go wrong (and how we prevent it)
Solar panels look tough, but they’re easy to damage with the wrong approach. Here’s what actually causes problems, what voids warranties, and why “cheap” solar cleaning often costs more long-term.
Problem 1: Reduced output after a “cleaning”
Panels that are scrubbed, scratched, or left with mineral residue can actually lose efficiency.
- Cause: brushes, tap water, dried minerals.
- Our prevention: no-pressure, no-brush, deionized water.
Problem 2: Micro-scratches on panel glass
Even soft brushes trap dust. Over time, that abrasion permanently reduces light transmission.
- Cause: broom heads, car-wash brushes, DIY kits.
- Our prevention: touch-free methods and controlled rinsing.
Problem 3: Voided manufacturer warranties
Many warranties prohibit pressure washing, harsh chemicals, or physical abrasion.
- Cause: pressure washers, detergents, aggressive tools.
- Our prevention: warranty-safe process documented every visit.
Problem 4: Roof or mounting damage
Walking incorrectly or dragging hoses can damage tiles, shingles, or mounts.
- Cause: untrained access, rushing.
- Our prevention: trained roof access and visual hardware checks.
Problem 5: Paying repeatedly for “cheap” cleanings
Cheap solar cleaning often means frequent re-cleans and declining performance.
- Cause: surface-level rinses.
- Our approach: maintenance plans that protect long-term output.