Cottage Lake Solar Panel Cleaning Services
Solar Panel Cleaning in Cottage Lake
Fully insured, locally owned solar panel cleaning for Cottage Lake homes — plus the surrounding Snohomish County and most of King County. Free estimates back within one business day.
Recover lost solar output in Cottage Lake
Dust, pollen, bird droppings, and rain spotting can quietly cut a Cottage Lake solar array's output by 15-25%. Our pure-water systems and manufacturer-approved soft brushes restore peak efficiency safely — never voiding your warranty and never scratching your panels.
What's included in every cleaning
Full panel array cleaning with pure-water system
Soft brushing approved for PV panels
Frame and edge wipe-down
Inspection for cracked or shaded cells
Bird-droppings and lichen treatment as needed
Photo report on request
Our Process
How we safely clean your panels
Inspect
We check panel condition, mounting, and flag any visible damage or shading before starting.
Pre-rinse
Pure water rinse loosens dust, pollen, and bird droppings without scratching the glass.
Soft brush
Manufacturer-approved soft brushes lift the rest of the grime — no abrasives, no detergent residue.
Final rinse & report
Spot-free pure-water rinse, frames wiped, and a quick walkthrough of anything we noticed.
Popular Add-Ons
Take it to the next level
Skylight Cleaning
Have your skylights cleaned during the same visit so the roofline looks bright and consistent with your freshly cleaned panels.
Gutter Cleaning
Add a full gutter cleaning to the same visit — pine needles around the array end up in the gutters anyway.
Window Cleaning
Bundle window cleaning while we're already on site for spotless glass throughout.
Roof Cleaning
Add a roof cleaning so debris and moss don't blow back onto your freshly cleaned panels.
Pricing
Simple, transparent packages
Starting prices for an average single-family home. Get an exact quote in under 24 hours.
Small Array
$199+
Up to 12 panels — quick efficiency restoration.
- Pure-water clean
- Frames wiped
- Visual inspection
Most Popular
Standard Array
$299+
Most popular — typical residential 13-24 panel array.
- Full pure-water clean
- Soft brush as needed
- Visual inspection + photo report
Large Array
$449+
25+ panels or commercial systems.
- Everything in Standard Array
- Frame & junction box detail
- Custom maintenance plan available
Also serving Cottage Lake's neighbors across Snohomish & King County
View all service areas →FAQ
Frequently asked questions
Local to Cottage Lake
Streets, parks & landmarks we serve in Cottage Lake
We work all over Cottage Lake — from the main corridors and shopping districts to the quietest cul-de-sacs and waterfront streets.
Streets we work
- • Avondale Rd NE
- • Woodinville-Duvall Rd
- • NE 165th St
- • NE Novelty Hill Rd (nearby)
- • 208th Ave NE
- • NE 145th St
Parks nearby
- • Cottage Lake Park
- • Bear Creek greenbelt
- • Cottage Lake Trail
- • Paradise Valley Conservation Area (nearby)
Shopping & landmarks
- • Cottage Lake Village
- • Avondale Rd retail strip
- • Woodinville wine country (just west)
- • Hollywood Schoolhouse area
- • Downtown Woodinville shops
Major intersections
- • Avondale Rd NE & Woodinville-Duvall Rd
- • Avondale Rd NE & NE 165th St
- • 208th Ave NE & NE 145th St
- • Woodinville-Duvall Rd & W Snoqualmie Valley Rd
Zip codes we serve
- • 98077
What Customers Say
Real reviews from happy Mill Creek & nearby homeowners
"Xzavier's cleaned our Mill Creek solar array and the difference in production is real. Friendly, careful on the roof, and the price matched the quote exactly. Highly recommend."
Diane H.
"Great experience getting our Lynnwood panels cleaned. Pure water rinse, soft brushing, no abrasives — exactly what the manufacturer recommends. Already on the books for next year."
Khalid A.
"Our Redmond solar array had lost noticeable output over the last year. Xzavier's used the pure-water system, soft brushed every panel, and gave us a quick walkthrough of any concerns. Output is back up and we're scheduling annually."
Anna L.
Ready for solar panel cleaning in Cottage Lake?
Free, no-obligation estimates for Cottage Lake homes — usually back to you within one business day.