If you run a pressure washing business and you're not offering solar panel cleaning, you're leaving money on the table. It's a $150-$400 job that takes under 90 minutes, requires almost no extra equipment, and comes back every year without you having to chase anyone down.

The Quick Answer

Most residential solar panel cleaning jobs pay well for the time invested:

Per panel: $10-$25 per panel
Flat rate per visit: $150-$400 for a standard 20-25 panel system
Minimum call-out fee: $125-$150
Job time: 45-90 minutes on-site
Cleaning frequency: 1-2 times per year for most homes, twice yearly for coastal areas

The recurring angle is what makes this worth adding. A customer who books once is likely to book every spring going forward.

Why Solar Panel Cleaning Is a Perfect Add-On

You're already at the house. You've already got the truck, the insurance, and the customer relationship. Solar panel cleaning is a natural extension -- same visit, bigger ticket.

Here's the math: a house wash at $300 plus solar panel cleaning at $200 is a $500 job instead of a $300 job. Same drive. Same setup time. You just stay 45 minutes longer.

About 4% of U.S. homes now have solar panels, and that number climbs every year. In sunnier states like California, Arizona, Florida, and Texas, the concentration is much higher. A solid chunk of your current customer list already has panels or will within the next two years.

What Equipment You Actually Need

Here's the critical thing: do not use a pressure washer on solar panels. High pressure can crack the tempered glass, strip the anti-reflective coating, and void the manufacturer's warranty. One bad job and you're paying for a $400-$800 panel replacement out of pocket.

Solar panels are cleaned with deionized water and a soft-bristle water-fed pole. The deionized water leaves zero mineral deposits when it dries -- streak-free result without chemicals or scrubbing. No soap needed, and no soap means no rinsing risk.

Here's a basic starter kit:

DI water filtration system: $500-$1,500 (resin cartridge type works fine to start)
Water-fed pole with soft brush head: $300-$800 (carbon fiber lasts longer)
Portable water tank with pump: $200-$400
Safety harness and anchor gear: $200-$500 (required for any roof work)

Total cost to add this service: $1,200-$3,200. At $200 per job, you recoup that in 6-16 jobs. Most operators break even within the first month of offering it.

How to Price Solar Panel Cleaning Jobs

Two pricing methods work well in this market.

Per Panel Rate

Charge $10-$25 per panel. A standard residential system has 20-25 panels, which puts the job at $200-$625. Easy to quote over the phone and easy for customers to understand.

Flat Rate by Roof Type

Set fixed prices by difficulty: $150-$200 for ground-mounted systems, $200-$350 for standard roof-mounted, $300-$400 for steep pitches or hard-to-access roofs. Commercial properties get a separate quote.

Always set a minimum. A $125-$150 call-out fee protects you on small jobs and covers your drive time. No-minimum pricing on solar cleaning kills your margins the same way it does on pressure washing.

Building Recurring Revenue With Solar Clients

This is where solar cleaning gets interesting. Most homeowners have no idea how often their panels need to be cleaned. You're the expert, and you can use that to build a recurring plan.

The general recommendation is 1-2 times per year for most climates. Coastal homes exposed to salt air need it every 6 months. High-pollen areas in the Southeast benefit from a spring cleaning to maximize summer output.

A simple annual plan works: $300-$400 per year for two visits, billed upfront in January or at first booking. Customers like the predictability. You like the guaranteed revenue before the season starts.

If you sign 30 customers on annual plans at $350 each, that's $10,500 in booked solar revenue before you pick up the phone. Layer that on top of your pressure washing schedule and your slow months look a lot less scary.

Marketing It to the Customers You Already Have

The easiest pitch you'll ever make goes something like this: "We now clean solar panels. Dirty panels lose 15-25% of their output. Want us to add it on during your next house wash?"

That's it. A homeowner who spent $25,000-$35,000 installing solar is not going to argue over a $200 cleaning. They're already invested in keeping the system producing.

Send one text or email to your existing customer list announcing the service. Offer $25 off for first-time bookings. A 10% response rate from 100 customers gives you 10 new solar jobs -- more than enough to cover your equipment costs.

You can also bundle it with existing upsells like gutter cleaning. A customer who books a house wash, gutter clean, and solar panel cleaning in one visit is a $600-$800 job. That's the kind of day that makes the business feel easy.

Bottom Line

Solar panel cleaning is one of the lowest-effort, highest-return add-ons you can add to a pressure washing business. Low equipment cost, short job time, and naturally recurring demand make it a smart move for any operator with customers who already have solar.

If you want customers to book and get instant prices right on your website, try QuoteSnap for free. You can configure it for solar panel cleaning in minutes and start capturing leads around the clock.

Solar Panel Cleaning: A $150-400 Per-Job Add-On Service (2026)