Residential solar panel cleaning in St. George
Good solar panel cleaning uses a soft brush and filtered or deionized water to lift dust without scratching the glass or leaving spots. The crew works from a safe position on the roof or from the ground with a long pole, then rinses so the panels dry clear.
The method
- Soft-bristle brush on an extension pole.
- Filtered or deionized water so hard-water minerals do not dry as spots.
- No harsh soap, no abrasive pads, no pressure washer on the panels.
- A quick look for loose wiring, cracked glass, or nesting, reported to you, not repaired on the spot.
Roof types around St. George
Concrete tile is common on many area homes and can crack if walked on carelessly. Ask how the crew moves on tile. Flat roofs and ground-mounted arrays are easier to reach and may cost less.
Picking a schedule
- Once a year: light dust, few birds.
- Twice a year: after spring winds and after the summer monsoon.
- More often: homes near construction, open desert, or heavy bird activity.
Questions to ask the cleaner
- What water and brushes do you use?
- How do you work on tile roofs without breaking tiles?
- Are you insured for roof work?
- Do you charge per panel or per visit, and is there a minimum?
See typical costs or the area we cover.
Common questions
Is it safe to clean panels on a tile roof?
It can be, with care. Experienced crews know where to step or work from a pole. Ask how they handle tile before you book.
Why not just use a hose?
Hard tap water leaves mineral spots as it dries, and a hose alone does not lift stuck-on dust. Filtered water and a soft brush do both.
Do I need to be home?
Usually not, if the crew can reach a water spigot and the roof safely. Confirm with the company.
Can cleaning fix low output?
Only if dirt is the cause. Low output can also come from shading, a failing inverter, or damaged panels. If output stays low after cleaning, call your solar installer.
Is there a best time of day to clean?
Early morning or evening, when panels are cool. Cold water on hot glass is best avoided.
Last updated November 12, 2026