Solar Panel Cleaning
Spot-free deionized water washes, timed around Arizona's dust and monsoon season. Pick your city below for local details and a free quote.
- Licensed and insured
- Deionized water only — no mineral spotting from Arizona's hard water
- Free inspection for cracks or wiring issues on every visit
Signs your panels need cleaning
Dust and monsoon mineral spotting build up gradually, which is exactly why the output loss so often goes unnoticed until it shows up on a bill. A few signs it's time:
- A visible layer of dust or a hazy film across the panel surface, especially after weeks without rain.
- White or gray mineral spotting left behind once monsoon rain dries on the glass.
- A drop in system output that shows up on your utility bill without an obvious cause.
- Panels near unpaved roads, agricultural land, or active construction, where dust settles faster than average.
Wondering how often is actually necessary? Read the full guide →
How it's done
Assessment
Where the system allows it, we note your current output before starting so the before/after difference is measurable, not just visual.
Pre-rinse
A plain-water rinse loosens the heaviest surface dust before anything touches the glass, so we're not grinding grit into the panel on first contact.
Deionized wash
Panels are washed with spot-free deionized water and soft tools only — no abrasive brushes, no high-pressure spray that risks the seals or glass.
Post-clean inspection
While we're already up there, we check for micro-cracks, loose wiring, and any hot spots — and flag anything worth knowing about, even if it's outside the cleaning itself.
Solar cleaning in Tucson, by the numbers
TEP residential customers with rooftop solar as of 2022, up from ~21,000 in 2018 — about 9.8% of TEP's 400,000+ home accounts.
Arizona Daily Star / TEP reportingArizona's official monsoon season dates, fixed by the National Weather Service since 2008.
National Weather ServiceDocumented range of annual solar output loss from soiling when panels go uncleaned — typically around 5%, per NREL research, with the higher end in long, dry, high-dust conditions like Arizona's.
NRELWhat Arizona homeowners say.
"These guys did an amazing job on our solar panels! Not only did they clean the panels, install the bird proofing off the roof! When I looked at my cameras after they left, I also noticed that they also swept the rocks in my front yard because they pulled a power washer over them! They provided excellent service!! I highly recommend their services!!"
"What a great job! Professional, personable, and efficient. Everything was left clean when the work was done and they made sure I had a way to contact them for issues. Thank you!"
"Very professional company. They did excellent work. We are so happy we found them."
Tucson Metro
Primary service areas
Also serving
Phoenix Metro
Coming soon — pages are built, waiting on a confirmed local crew.
Curious how often panels actually need cleaning here?Read the full guide →
Frequently asked
How much does solar panel cleaning cost?
It depends on panel count and roof access, so we don't quote a flat number sight-unseen — every quote is based on your specific system, not a generic per-panel rate.
How often should panels be cleaned in Arizona?
Twice a year for most homes — once before monsoon season and once after — though homes near unpaved roads or agricultural land may need more.
Will cleaning damage my panels?
No — we use spot-free deionized water and soft tools only, no abrasive brushes or high-pressure spray that could risk the glass or seals. Why deionized water outperforms pressure washing on panel glass.
What areas do you serve?
Tucson Metro today — including Oro Valley, Marana, Sahuarita, and 11 more cities below. Phoenix Metro pages are built and waiting on a confirmed local crew.
How much output do dirty panels actually lose?
NREL's soiling-loss research puts a typical annual output loss around 5%, with a documented range of 2% up to 25% during long, dry, high-dust stretches between cleanings — and Arizona's monsoon-and-drought pattern pushes most local systems toward the higher end of that range, which is exactly why we recommend cleaning on both sides of monsoon season rather than once a year. How that loss actually shows up over a season.
Can I clean my own solar panels, or is that risky?
Tap water leaves mineral spotting that actually reduces output, and a garden hose or pressure washer can drive water past seals or crack cold glass if it's hit with cold water on a hot panel — both common DIY mistakes. Full breakdown of what can go wrong, and what's safe to do yourself.
How do I know if my panels actually need cleaning right now?
Dust build-up is gradual enough that most homeowners don't notice until it shows up on a utility bill — checking your monitoring app for a slow, steady output dip (not explained by shorter days or cloud cover) is the most reliable early sign. How to read your monitoring app for soiling loss, and other signs to watch for.
Does panel tilt angle affect how often I need to clean?
Flatter-mounted panels hold onto dust longer than steeply tilted ones, since there's less gravity and rain assist to help clear debris between cleanings — which means two identical panels in the same neighborhood can need different schedules based on mounting angle alone. Full explanation of how tilt affects soiling rate.
Does cleaning ever void my solar panel warranty?
No, as long as it's done with non-abrasive tools and deionized water rather than a pressure washer or anything that could crack glass or force water past seals. Full warranty-language breakdown across major manufacturers.
Ready to get your panels back to full output?
Tell us your city and what you're seeing — a local crew gets back to you within 24–48 hours.