Those dark vertical streaks on Seattle gutters come from the same damp, algae friendly climate that grows moss on the roof. Our whitening process lifts that grime and restores the bright, clean look of your exterior.
It is a finishing touch that makes a clean home look truly cared for, and it pairs naturally with a full gutter cleaning visit.

We break down the dark algae streaks that build up on gutters in Seattle's damp climate.
Our cleaning solution brightens the finish without harming the gutter coating.
Your gutters come back to a clean, uniform look that lifts the whole exterior.
Proudly serving Seattle, Bellevue, Renton, Shoreline, Kirkland and Burien for 12+ years.
From routine gutter cleaning to moss removal and full downspout repair, we offer the complete range of exterior services Seattle homes need to survive the rainy season. Explore our core services below.

Our service reaches well beyond Seattle city limits into the communities that share the same wet climate and heavy tree coverage. No matter which side of Lake Washington you call home, our crews bring the same local expertise and careful work to every property.
Frequently Asked Questions
Gutter Cleaning can be complex, and we’re here to provide answers to common questions. Here are some frequently asked questions from our clients.
With Seattle's heavy rainfall and dense fir, cedar, and maple coverage, most homes need cleaning twice a year, typically late spring after oak tassels drop and again in late fall once the leaves finish coming down.
The Puget Sound climate keeps debris damp year round, so cedar needles, fir cones, and moss break down into a heavy sludge instead of drying out and blowing away. That mat traps water and clogs downspouts well before a single visible blockage forms.
Yes. When water overflows the gutter it runs down the fascia and pools against the foundation, which is a real concern on Seattle's many sloped lots and older homes. Keeping gutters clear protects your roofline, siding, and basement from costly water intrusion.
We clear moss and organic buildup from the gutters and roofline edge during service, which is common on shaded Seattle roofs. For heavier roof moss we recommend our dedicated moss removal treatment to keep it from returning.
Ladder falls send thousands of homeowners to the hospital every year, and wet Pacific Northwest roofs make footing unpredictable. Our crews are trained, insured, and equipped to work safely at height so you never have to climb a slick ladder.
We serve homes across Seattle including Ballard, Queen Anne, Capitol Hill, Wallingford, and Green Lake, along with nearby cities like Bellevue, Renton, Shoreline, Kirkland, and Burien.
Those tiger stripes come from airborne grime and algae that cling to gutters, and Seattle's damp air makes them appear faster than in dry climates.
No. Our solution is formulated to lift streaks without harming the gutter's finish or coating, leaving the surface clean and intact.
Yes, and many homeowners pair the two. We clean the inside and brighten the exterior so the whole system looks and works its best.
Results last a good while, though Seattle's damp climate means streaks gradually return, so periodic whitening keeps the exterior looking fresh.
Book Gutter Whitening Service
We pride ourselves on delivering great results and experiences for each client. Hear directly from home and business owners who’ve trusted us with their Gutter Cleaning needs.

They cleared years of cedar buildup from our Ballard gutters and flushed every downspout. Water finally drains the way it should, even in a downpour.
Marcus Whitfield

Moss had taken over our roofline in Wallingford. The crew was thorough, on time, and showed me photos of everything they removed. Highly recommend.
Priya Nandakumar

After the fall leaf drop our gutters were overflowing onto the foundation. They fixed it fast and explained how to stay ahead of it next year.
Devon Castellano
Ready to hear more about expert services at Seattle Gutter Cleaning Pro?
Contact us today to receive a detailed, no-obligation quote.

830 N 34th St - Kiln Fremont, Seattle, WA 98103
Mon–Fri: 8 AM–6 PM Sat: 9 AM–3 PM Sun: Closed