Roof Cleaning

Cleaning that enhances and protects your roof system

Professional Roof Cleaning in Vancouver, WA

Your roof is one of the most important parts of your home, but over time, it can become covered in black streaks, moss, algae, and lichen, causing premature wear and reducing curb appeal. At NW Softwash, we provide expert roof cleaning in Vancouver, WA, using a low-pressure soft wash system that eliminates harmful growth without damaging your shingles.

Unlike traditional pressure washing, which can strip away granules and shorten your roof’s lifespan, our soft wash method gently removes moss, algae, and organic buildup while ensuring long-lasting protection.

Why Choose NW Softwash for Roof Cleaning?

✔ Soft Wash Cleaning – No Pressure Damage – Our low-pressure application safely cleans roofs without harming shingles, tiles, or metal surfaces.

✔ Kills Moss, Algae & Lichen at the Root – Our cleaning solution breaks down organic growth and prevents it from returning, keeping your roof clean for years.

✔ Licensed for Pesticide Application – As a Washington State Department of Agriculture-certified applicator, we apply safe, EPA-approved treatments to ensure proper moss control and long-lasting protection.

✔ Extends Your Roof’s Lifespan – Moss and algae trap moisture, leading to shingle deterioration. Regular soft washing prevents costly roof damage and extends its life.

✔ Top-Rated Roof Cleaning Experts in Vancouver, WA – We’re a trusted local company, serving homeowners across Clark County with professional, high-quality service.

Licensed & Certified for Pesticide Applications

NW Softwash is licensed with the Department of Agriculture to apply safe, eco-friendly treatments that kill moss and algae at the root, preventing regrowth and keeping your roof clean for longer.

★★★★★ 5/5

NW Softwash did a great job on our composite roof last year so we used them to power wash our concrete and softwash our pavers to get the accumulation of moss & mold off. Marshall and Canaan did a great job be careful of our landscaping and going the extra effort to hit a few other spots and they drained there equipment and retouch a small section of our roof where the moss was returning. Very pleased.

Christopher Lindgren

Google Review

Our Roof Cleaning Process

1. Inspection & Light Sweep – We first assess the roof’s condition and then provide a light sweep of the moss and debris.

2. Treatment Process – Once the debris is agitated, we blow off the roof with leaf blowers to clean off the surface. Next, we apply a low pressure liquid moss treatment that kills the moss including its root systems.

3. Clean Up & Results – After the treatment is applied, our technicians will clean up all fallen debris from the grounds around your home. Moving forward, you will see the dead moss compounds dry up and flake off your roof in the upcoming months with the wind and rain. Expect the treatment to last up to 3-5 years with the most minimal impact to your roof structure and materials!

Roof Types We Clean

✔ Asphalt Shingle Roofs

✔ Metal Roofs (Standing Seam & Corrugated Metal)

✔ Cedar Shake Roofs (Wood Shingles & Shakes)

✔ Tile Roofs (Concrete & Clay Tile)

✔ Flat & TPO (Thermoplastic Polyolefin) Roofs

Clean Home = Happy Home

Give your home the gift of a Roof Cleaning and see the difference it makes!

Frequently Asked Questions

See our most popular questions and answers below for Roof Cleaning

How often should I have my roof cleaned in the Pacific Northwest?

Due to the wet climate in Washington and Oregon, moss, algae, and lichen grow quickly on roofs. Most homeowners should schedule a soft wash roof cleaning every 3-5 years to prevent buildup and protect their shingles. If your home is surrounded by trees or in a shaded area, annual inspections may be needed.

Is soft washing safe for my roof?

Yes! Unlike high-pressure washing, soft washing uses low-pressure water and specialized cleaning solutions to remove moss, algae, and stains without damaging your shingles. It’s the recommended method for asphalt shingles, cedar shakes, tile, and metal roofs. Always verify with the service provider on the chemicals being used on your roof to avoid voiding your warranties.

Will soft wash treatments prevent moss from coming back?

Soft washing not only treats existing moss but also includes a post-treatment solution that kills spores and slows regrowth. While no method can permanently stop moss in the PNW’s damp climate, our licensed pesticide application helps keep your roof cleaner for much longer than DIY methods.

Do I need a roof cleaning if I don’t see moss?

Yes, it's always a good idea to be on a preventative schedule! Even if you don’t see moss, your roof could have black streaks (algae), lichen, or early-stage moss growth. Preventative cleaning extends your roof’s lifespan, prevents leaks, and maintains curb appeal. If left untreated, buildup can trap moisture, leading to premature roof damage and costly repairs.

Signs Your Roof Needs Professional Cleaning

Black streaks on shingles (caused by algae and bacteria)
Green moss or lichen growth
Dull, discolored roof appearance
Debris buildup in valleys and gutters
Shingles retaining moisture or showing early signs of deterioration

Why Regular Roof Cleaning Matters

Many homeowners don’t realize that moss, algae, and organic buildup can shorten the life of their roof. In the Pacific Northwest, where damp conditions encourage rapid growth, neglecting roof maintenance can lead to water damage, leaks, and expensive repairs. Our soft wash roof cleaning eliminates harmful growth while preserving the integrity of your shingles.

Contact Us

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We will respond to your inquiry within 30 minutes during normal business hours.