Window, Roof, and Gutter Cleaning in Mercer Island, WA

At Gann’s Cleaning LLC, we’re proud to serve the homeowners and businesses of Mercer Island with trusted, high-quality exterior cleaning services. Whether you live on the south end, near Luther Burbank Park, or along the shores with those amazing Lake Washington views — we’re here to keep your property looking its best year-round.

Mercer Island homes face unique challenges with shade, moisture, and moss buildup from our Pacific Northwest weather. That’s why we tailor each job to the property — delivering safe, effective, and long-lasting results with every clean.

Our most popular Mercer Island exterior cleaning services include:

• Window Cleaning (Interior & Exterior) – Spotless, streak-free glass that enhances natural light and views across the lake.

• Roof Cleaning & Moss Treatment – Safe moss removal, roof sweeping, and zinc treatment to prevent regrowth and protect your investment.

• Gutter Cleaning – We clear gutters and downspouts, blow off the roof, and complete a full ground-level cleanup.

• Pressure Washing – Restore the look of your patio, driveway, siding, and walkways with precision power washing.

• Solar Panel Cleaning – Keep your solar system operating efficiently with professional, gentle solar panel cleaning.

We bring a neighborly touch and a high level of professionalism to every Mercer Island job. No shortcuts, just honest work and reliable service that fits your schedule and respects your property.

Trusted Exterior Cleaning Across Mercer Island, WA

Serving neighborhoods including:
South End, Mid-Island, North End, First Hill, East Seattle, and Fruitland Landing

Looking for a cleaner, brighter home exterior?

Reach out to Gann’s Cleaning LLC today for a quote on our Mercer Island exterior cleaning services — and see why so many neighbors trust us to care for their homes.