Frequently Asked Questions About Solar Panel Cleaning Services

In the Central Valley's dusty, high-sun climate, most homeowners get the best results cleaning 2–4 times a year. Agricultural dust, pollen, and bird droppings build up quickly here and can cut output by 15–25%. We'll recommend a schedule based on your location and exposure.

Yes. Dirt, dust, and bird droppings block sunlight and can reduce production by 15–25%. Professional cleaning restores that lost output — and it often pays for itself in energy savings.

No. We use purified (deionized) water and soft-brush, low-pressure methods that are safe for panels and warranty-compliant — no harsh chemicals, no abrasive tools, no high-pressure spray on the glass.

Purified, deionized water and soft brushes — plus robotic cleaning for large arrays. Deionized water leaves no mineral residue, so panels dry streak-free and spotless.

Rain rinses off loose dust but leaves behind a film of minerals, pollen, and grime that actually blocks light. And in our dry Valley summers, panels can go months without meaningful rain.

Everything — rooftop residential and commercial panels, ground-mounted arrays, solar carports and canopies, warehouse and industrial rooftops, and large-scale solar farms.

For a single-story home: $100 (up to 20 panels), $125 (21–35), and $150 (36–45). Two-story homes are $125 / $150 / $175 for those same tiers. Larger systems get a fast custom quote. Try our instant cost calculator for your exact price.

Yes — Bi-Annual, Quarterly, and Annual Maintenance plans. Plan customers get discounted rates versus one-time service and never have to remember to schedule.

For standard homes, the calculator gives an accurate flat rate. Very large or hard-to-access arrays may vary slightly — we always confirm the price before any work begins, with no hidden fees.

The gap between your panels and the roof is warm, shaded, and sheltered — ideal for pigeons. Nests bring droppings, debris, chewed wiring, and lost efficiency, and the mess spreads across your roof.

We seal the perimeter of your array with humane, weather-resistant mesh and guards that block access to the underside of the panels — plus spikes and deterrents where needed.

Yes. Our approach is exclusion-based — mesh, guards, and spikes keep birds out without trapping or harming them.

They're different names — and materials — for the same goal: sealing off the space under your solar panels. Bird netting and solar wire mesh (galvanized or PVC-coated) clip around the panel perimeter, while a bird guard or critter guard is the same barrier system. We'll recommend the best option for your roof type and system.

It depends on the size of your system and the type of deterrent needed. We provide a free on-site assessment and a clear written quote before starting.

Yes — residential and commercial solar panel installation, handled end-to-end from system design and permitting to mounting and final inspection.

Yes. If your system is underproducing, our technicians diagnose the real cause — a faulting inverter, wiring issue, or dead panel — and get you back to full output.

No. Most cleanings and services are completed without you being home — we send before-and-after photos and an online invoice when the job is done.

We operate from three locations — Fresno, Clovis, and Madera — serving all of the Central Valley, including Sanger, Kerman, Chowchilla, Merced, Los Banos, Friant, and more.

Book online in about a minute with our instant booking, or call your nearest location. We're available 7 days a week.

Yes — fully licensed and insured, with 400+ verified 5-star reviews across Google and Housecall Pro.