Home/Cleaning services/Solar panel cleaning
Updated October 2026 · Seattle areaBest Solar Panel Cleaning in Seattle
Solar panel cleaning for Seattle-area homes and businesses, done with purified water and soft brushes.
- 13 local companies
- Checked on their own websites
- Free, no-obligation quotes
Solar panel cleaning companies serving the Seattle area
13 companies that list solar panel cleaning on their own websites. Filter by your city to see who serves you.
A Plus Roof Cleaning & Pressure Washing
- Solar panel cleaning
- Eco-friendly products
Serving since 2006. Licensed, bonded & insured.
Serves: Seattle, Bellevue, Kirkland, Bothell, Shoreline, Sammamish and 7 more
Johnny Tsunami
- Rooftop, ground-mount & commercial panels
- Purified water + soft brushes
- Panel inspection
- Recurring memberships
Licensed, bonded & fully insured. Eco-friendly moss treatment.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Renton and 4 more
Rojo Moss Removal and Power Washing
- Solar panel cleaning
- Skylight cleaning
Eco-friendly zinc-based / metal-free moss treatments.
Serves: Seattle, Bellevue, Auburn, Edmonds, Mill Creek
Clearly Amazing (Seattle)
- Inspection for panel damage
- Non-abrasive cleaning
- Edge and frame detailing
Fully insured. Background-checked full-time employees. Eco-friendly products.
Serves: Seattle, Bellevue, Kirkland
SolShine Solar Panel Cleaning
- Residential solar cleaning
- Commercial & industrial solar cleaning
- One-time and ongoing plans
WA license SOLSHSP768CK. Locally owned.
Serves: Bellevue, Redmond, Shoreline, Sammamish, Issaquah, Mercer Island and 13 more
Homefront Power Wash
- Solar panel cleaning
Licensed & insured.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Woodinville and 11 more
Grace Roof & Gutter Cleaning
- Solar panel cleaning
- No harsh pressure or bleach on panels
Licensed general contractor. Eco-friendly, organic roof cleaning methods.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Woodinville and 9 more
Precision Pro Wash
- Deionized/purified water cleaning
- Soft non-abrasive tools
- 7-day rain guarantee
- No-scratch safety guarantee
Licensed & insured ($2M insurance). Plant protection guarantee.
Serves: Seattle, Bellevue, Issaquah, Mercer Island, Newcastle, Renton and 9 more
Chinook Services
- Purified-water soft brush cleaning
- Winsol Solar Brite cleaner
- Under-panel debris/moss removal on request
- Commercial arrays (1,000+ panels)
Since 2001. Licensed, bonded & insured (lic. CHINOS906R9). Eco-friendly solutions.
Serves: Seattle, Bellevue, Redmond, Kenmore, Shoreline, Sammamish and 4 more
Seattle Pristine Window & Solar Cleaning
- Solar panel cleaning
- Roof & gutter cleaning with moss removal
- Window washing
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Sammamish and 3 more
Pro Care, Inc.
- Solar panel cleaning
In business since 2002. Licensed (incl. pressure washing contractor license). Fully insured.
Serves: Seattle, Bellevue, Redmond, Kirkland, Sammamish, Issaquah and 2 more
Goodbye Moss PNW
- Water-fed filtered water system
- No detergents or chemicals
- Visual panel inspection
Licensed, bonded & insured general contractor.
Serves: Seattle, Bellevue, Kirkland, Issaquah, Everett, Tacoma
Squeegee Squad Seattle Eastside
- Solar panel cleaning
- Roof cleaning (moss & algae removal)
Serves: Redmond
Order: companies based in Seattle first, then by how many cities they serve. No company paid for its position on this page.
What solar panel cleaning includes
Rain does not fully clean solar panels. Pollen, tree debris, bird droppings and moss from nearby roofs can build up and lower output, especially on low-angle panels under trees. A gentle professional clean helps panels produce what they should.
Purified water wash
Deionized water and soft brushes that leave no residue.
Debris removal
Leaves, needles and moss cleared from panels and edges.
Inspection
Visual check for damage, loose wiring or nesting birds.
Bird proofing
Critter guards offered by some companies.
Roof bundles
Often combined with roof and gutter cleaning.
Solar panel cleaning checklist
Before
- Check your panel warranty
- Note output changes
- Clear access
During
- Rinse and brush panels
- Clear debris
- Inspect
After
- Track output
- Plan yearly cleaning
Solar panel cleaning prices in Seattle
Solar panel cleaning is usually priced per panel or per system. None of the listed companies publish fixed prices; request a quote.
Before you compare prices
Panel count, roof pitch and access all affect the price.
How to choose a solar panel cleaning company
Gentle method
Ask for purified water and soft brushes; avoid pressure washing and harsh chemicals.
Warranty
Check your panel warranty for cleaning requirements.
Insurance
Roof work needs proper insurance.
Experience
Ask how many solar systems they clean each year.
Seattle conditions
Spring pollen and fall needles are the main culprits around Seattle. A yearly clean in late spring is common.
Get free quotes from local companies
Tell us what you need once. We pass your request to up to 3 listed companies that serve your area, and they contact you directly.
Frequently asked questions
Do solar panels need cleaning in Seattle?
Rain helps, but pollen, debris and bird droppings still build up, especially on low-angle panels.
How often should panels be cleaned?
Once a year is common, more often under trees.
Can I clean panels myself?
It is possible from the ground with the right tools, but roof work is risky. Many homeowners hire it out.
Will cleaning void my warranty?
Not if done gently. Check your manufacturer's instructions.
Related cleaning services
Listings are compiled from each company’s own website and checked in October 2026. Seattle Cleaning is an independent directory: we do not run, employ or guarantee any listed company. Prices are as published by each company at the time of checking and can change. See how we choose listings. Spot an error? Tell us.
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