Question 1

Does cleaning solar panels actually make a difference?

Accepted Answer

It depends on how dirty they are. Dust, pollen and marine film cut the light reaching the cells, and in a dry San Diego summer that builds up for months without rain to rinse it. If your output has drifted down and nothing else has changed, soiling is the usual explanation.

Question 2

Will cleaning void my panel warranty?

Accepted Answer

Not the way we do it. We use deionized water and soft tooling, no detergents and no abrasives, which is what panel manufacturers specify. Pressure washing a panel array is what puts a warranty at risk.

Question 3

Why deionized water?

Accepted Answer

It dries without leaving mineral residue. Ordinary tap water leaves spots on the glass as it evaporates, which is the opposite of what you want on a surface whose whole job is letting light through.

Question 4

How often do panels need cleaning here?

Accepted Answer

Once or twice a year for most roofs. More often if you are under trees, near active construction, or somewhere the marine layer settles heavily.

Question 5

What areas does RadPad serve?

Accepted Answer

We serve San Diego and the surrounding communities across San Diego County. If you are near the edge of our map, call and we will tell you straight whether we can get to you.

Question 6

Do I need to be home during the service?

Accepted Answer

No. For most exterior work we only need access to the property and an outdoor water spigot. We will confirm the details when we schedule and send photos when the work is complete.

Commercial Solar Cleaning

What's Included

Every Corner, Managed

Tell Us About the Property

Scheduled, Not Squeezed In

Done to Standard

Walked and Confirmed

Reviewed by the Neighbors

Solar Questions

Your Home Deserves a Company That Defines Care