Solar Panel Cleaning · Madison, WI

Warranty-safe solar panel cleaning for residential homes, commercial facilities, agricultural operations, and government buildings across Southern Wisconsin. Locally owned, owner-operated, OSHA-trained, fully insured, no subcontractors. My cleanings are designed to extend the life of your solar investment and help recover production lost to soiling.

What I do

• Residential cleaning: Every job is unique. See your exact price in seconds using the free instant calculator at /pricing, no contact info required.
• Commercial & agricultural cleaning: Custom written bid emailed within 24 hours. Net-30 invoicing, W-9 on request, $2M insured, multi-site contracts welcome. /commercial.
• Government & institutional: The Wisconsin State Capitol is one of my reference installations.

Why owners choose Solar Alchemist

NREL's 2024 PV Fleet report shows U.S. annual soiling losses vary widely by site, with dry regions and farm-adjacent installs sitting at the top of the range. Southern Wisconsin has no published soiling study, so I treat higher-end ranges as scenarios and let each site's monitoring data guide the decision. Where cleaning helps, it's usually because bird droppings, pollen film, farm dust, or debris on low-tilt panels have accumulated in a way rain can't lift.

Frequently asked questions

Do solar panels really need to be cleaned in Wisconsin?

It depends. Rain rinses loose dust well. What rain can't lift is bird droppings, pollen film, farm dust, and debris along the bottom edge of low-tilt panels. If you can see buildup on your panels, cleaning helps. If they look clean and production matches last year, you can wait.

Will rain clean my solar panels?

Partly. Rain rinses loose dust well, and Qcells' own manual notes rain usually handles dirt on tilted panels. What rain doesn't lift is pollen film, bird droppings, farm dust, and residue along the bottom edge of low-tilt panels. If you can see buildup on your panels after a rain, rain isn't removing it.

How much output can I recover by cleaning my panels?

NREL field data shows U.S. annual soiling loss varies widely by site. Dry regions and farm-adjacent installs sit at the top of that range. Southern Wisconsin has no published soiling study, so I frame scenarios as ranges and let each site's monitoring data guide the decision. I don't guarantee any specific percentage on any customer's system, every roof is different.

Do you use chemicals on the panels?

Not without care. I use 100% deionized water and a motorized rotary brush — with a biodegradable, panel-specific soap when heavy soiling needs it. No harsh chemicals, no abrasives, warranty-safe. Manufacturers' rules differ by brand, so I check your panel's manual before every job.

Does cleaning void my solar panel warranty?

No. My method: 100% deionized water and a motorized rotary brush — with a biodegradable, panel-specific soap when heavy soiling needs it. No harsh chemicals, no abrasives, warranty-safe. Chemical cleaners, abrasive pads, pressure-washing, and any foot traffic on the glass all void panel warranties. I use none of those.

Do you clean commercial solar arrays?

Yes. I clean commercial, agricultural, government, and multi-site arrays across Southern Wisconsin. The rig scales to larger arrays on demand. Every commercial site receives a custom written bid within 24 hours, no published per-panel rate. Request a commercial bid.

Service area

Madison, Fitchburg, Sun Prairie, Middleton, Verona, Waunakee, DeForest, Oregon, Stoughton, Mount Horeb, Monona, McFarland, Cottage Grove, Cross Plains, Belleville, Janesville, Beloit, Edgerton, Evansville, Milton, Beaver Dam, Fort Atkinson, Watertown, Lake Geneva, Oconomowoc, Waukesha, Brookfield, New Berlin, Mukwonago, Menomonee Falls, Milwaukee, West Bend, Germantown, Mequon, Port Washington, Racine, and Kenosha, across 11 Southern Wisconsin counties: Dane, Rock, Jefferson, Dodge, Walworth, Waukesha, Washington, Milwaukee, Ozaukee, Racine, Kenosha. Sites outside these counties are quoted case by case. See every city I serve.

Get a quote today: Residential instant calculator · Commercial 24-hour custom bid · or call (608) 571-4173.