Solar Panel Cleaning FAQs

Have questions about solar panel cleaning? We’ve got you covered.
From what’s included in our solar panel cleaning services to the proven methods we use to keep your panels performing at their best, our FAQ section is here to put your mind at ease.

1. Why is it important to clean solar panels?

Dirty panels can lose up to 25% of their energy output. Dust, ash, and debris build up quickly in the Central Valley, especially during the harvest season.

2. How often should solar panels be cleaned?

We recommend every 3 to 6 months depending on tree coverage, nearby agriculture, and energy output goals.ard exterior window cleaning includes a thorough wash using deionized water, a 40-foot water-fed pole for second stories, soft-brush agitation, and a spotless rinse. Sills and window frames are included in every clean, and we offer screen cleaning as an optional flat-rate add-on.

3. Do you use any chemicals that might damage the panels?

Never. We clean using deionized water and a soft-bristle brush specifically designed for solar panels. No chemicals, no damage.

4. Can dirty solar panels affect energy production?

Yes. Even a light layer of dust can significantly reduce efficiency. Regular cleaning ensures maximum energy return.

5. Is it safe to clean solar panels myself?

While you can clean panels yourself, it’s easy to use the wrong cleaning products — like soap that damages the clear coat — or harsh brushes that can scratch or permanently damage the surface. It’s also dangerous for many homeowners to get up on ladders without the proper safety equipment. Leave it to the trained professionals to handle your solar panel cleaning needs hassle-free and safely.

6. Do you offer maintenance plans for solar panel cleaning?

Yes — you can bundle solar with window or gutter cleaning and save. We offer quarterly, tri-annual, and bi-annual maintenance plans.

7. How do weather conditions affect solar panel cleanliness?

Wind, dust storms, ash, and rain can all contribute to dirty panels. Even light rain can leave behind mineral residue. Especially in the Central Valley, where hard water and dust are very common, the weather here makes it harder for homeowners to keep things clean year-round.

8. Can you clean solar panels on multi-story buildings?

Yes, we use long-reach water-fed poles and safety equipment to clean multi-story rooftop panels.

9. What equipment do you use for solar panel cleaning?

We use purified deionized water, soft solar brushes, and telescoping poles up to 40 feet to safely reach and clean panels.

About WIndow WIzards

Locally owned and operated by Oakdale, CA graduates and friends. Our goal is to provide our community with the BEST window washing, gutter cleaning, and solar panel maintenance.

Phone

(209) 318-3023

Email