The Pacific Northwest Special – Moss Removal & Soft Washing in Sammamish, WA

At Deep Water Pressure Washing, we take pride in delivering exceptional exterior cleaning services across the Pacific Northwest. One of our most recent projects, affectionately named "The Pacific Northwest Special," took place at a beautiful log cabin-style home in Sammamish, Washington. This job required specialized care and advanced techniques to tackle a steep, unwalkable asphalt shingle roof, as well as thorough pressure washing, concrete cleaning, window cleaning, and gutter cleaning. The transformation was incredible—and the results far exceeded the client's expectations.

Project Overview

Located in the scenic hills of Sammamish, this property was surrounded by wooden decks, patio furniture, and dense foliage, making traditional roof cleaning methods risky. The project included pressure washing the concrete driveway, soft washing asphalt shingles, cleaning enclosed gutters, and using a pure water filtration system to clean exterior windows.

Due to the height and steep pitch of the asphalt shingle roof, walking on it was not an option. Our crew adapted by using a ladder hook with wheels, which allowed us to safely maneuver and secure the ladder over the roof peak without damaging the shingles. The moss and organic debris built up over time were carefully removed by hand, using low-pressure water to avoid any risk of damage to the roof or the surrounding wooden structures.

The project also included enclosed gutter cleaning, which involved spraying out debris from inside the gutters, and a surface cleaner with a pre-treatment solution was used to tackle the grime on the concrete driveway. To complete the job, we finished with crystal-clear window cleaning using a pure water system, leaving the entire home looking refreshed and pristine.

Challenges & Approach

The primary challenge in this project was the steep, unwalkable roof. Because the asphalt shingles were delicate and the pitch was so severe, our team couldn’t safely walk the roof. Instead, we used a ladder equipped with wheels and a roof hook to roll the ladder into position without damaging the shingles. Once over the peak, the ladder was turned and locked securely to allow for safe access along each section of the roof.

Our chemical-free approach was crucial for this particular home. Though bleach is often used for cleaning asphalt roofs, the log cabin exterior and nearby wood surfaces meant even a small overspray could lead to permanent staining or damage. To prevent that, we avoided all harsh chemicals and instead manually scrubbed and rinsed each shingle edge with precision, relying on low pressure and high water volume for a thorough clean.

Throughout the project, we moved the ladder counterclockwise around the home, using attached casters on the bottom to glide it across the steep slope without scratching or dragging. Our approach took strength, control, and patience, but ultimately delivered outstanding results without compromising safety or damaging any surfaces.

Results & Client Satisfaction

The transformation of this property was nothing short of remarkable. The asphalt shingle roof was free of moss and buildup, with no damage to the shingles or surrounding wood surfaces. The driveway looked freshly restored, the gutters were fully cleared and functioning properly, and the windows were left spotless.

The client was blown away by the difference—especially compared to prior service providers. They were thrilled with the care we took and the exceptional outcome and have already expressed interest in routine maintenance cleanings moving forward.

Why Choose Deep Water Pressure Washing?

At Deep Water Pressure Washing, we combine expertise, care, and advanced techniques to deliver unbeatable results. We specialize in asphalt shingle soft washing, pressure washing, tile roof cleaning, concrete cleaning, window cleaning, and gutter cleaning throughout Tacoma, Washington, Sammamish, and surrounding areas. Whether you're dealing with a steep roof, delicate surfaces, or years of buildup, our team has the skill and tools to restore your property safely and effectively.

If you want reliable results from a crew that cares—contact Deep Water Pressure Washing today and schedule your next project with confidence!

Budget: 5300

Location: Tacoma, WA