Professional Roof
Cleaning portland
Roof cleaning is the professional removal of moss, algae, lichen, and organic debris that accumulate on your roof over time. Unlike pressure washing, which can damage shingles, proper roof cleaning uses specialized low-pressure techniques and cleaning solutions designed to safely restore your roof’s appearance and extend its lifespan.
At NW Pressure Washing Service, we use soft washing methods that gently eliminate growth at the root level while protecting the integrity of your roofing materials. Our process is safe for composition shingles, tile, metal, and cedar shake roofs.
Why Roof Cleaning Is Important for Portland Homes
Heavy Rainfall and Constant Moisture
Portland roofs remain damp for extended periods. This constant moisture promotes moss and algae growth, which can lift shingles and allow water to penetrate your home's structure
Moss and Algae Growth
The Pacific Northwest is notorious for moss growth. Once established, moss acts like a sponge, trapping moisture against your roof and accelerating deterioration. Black algae streaks (gloeocapsa magma) not only look unsightly but also retain heat and moisture that break down roofing materials.
Tree Coverage and Debris
Portland's tree-lined neighborhoods mean many roofs are shaded for much of the day. North-facing roof sections, in particular, receive limited sunlight and dry slowly, creating ideal conditions for organic growth.
Protecting Your Investment
A clean roof lasts longer. Regular roof cleaning prevents costly repairs and premature roof replacement, protecting one of your home's most significant investments.
Why we don't pressure wash your roof
Unlike traditional pressure washing methods that can force water under shingles and cause costly damage. our roof Cleaning process is designed to protect your roof while eliminating unsightly growth. High-pressure water can lead to water intrusion, void manufacturer warranties, and significantly shorten your roof’s lifespan. Our treatment method eliminates these risks entirely.
Our Roof Cleaning Process
Stage 1: Inspection & Preparation
We begin with a thorough assessment of your roof's condition, material type, and the extent of moss or algae growth. We inspect gutters, flashing, and nearby landscaping to plan our approach. Loose debris, leaves, and branches are carefully removed from the roof surface and gutters to ensure proper drainage and prepare for treatment.
Step 2:Treatment
Using specialized low-pressure equipment, we apply our concentrated house washing soft wash cleaning solutions that kill moss, algae, and lichen at the root and immediately.
Step 3: Neutralization and Brightening
After the treatment, overtime, rain, wind and sun will gradually wash away the dead growth, leaving your roof clean and protected. This process is gentler on your roof, extends its lifespan, and provides longer-lasting results than pressure washing. The treatment continues working for months after application, helping to prevent rapid regrowth and keeping your roof cleaner longer.
Service Specifications
We service residential roofs that meet the following criteria: Two stories or less in height
Easy access from ground level or existing deck
Moderate roof pitch (we do not work on steep-pitch roofs for safety reasons)
External access available (we do not run equipment through your home)
Important Access Requirements: All equipment access must be from outside your home.
If there is no external access to your roof area, we cannot provide service.
We never run hoses, ladders, or equipment through the interior of your home to reach a roof
Leaf and Debris Removal
Before treating your roof, we can blow away leaves, pine needles, and other debris using professional equipment. This service ensures the treatment reaches all roof surfaces effectively and helps prevent drainage issues. Debris removal is available as an add-on service with additional charges based on the volume of material.
Roof Cleaning Treatment Pricing
Get Up To 50% Off On Routine Roof Cleaning
Why portland homeoners
choose us?
Fully Insured
We are fully insured pressure washing company, we protect your property and give you complete peace of mind during every cleaning project.
ProfessionaL eQUIMENT
We use commercial-grade pressure washing equipment to safely remove dirt, moss, mildew, and grime without damaging your home's surfaces.
100% sATISFACTION gUARNTEED
We stand behind our work with a 100% satisfaction guarantee. If you're not completely happy with the results, we'll make it right at no additional cost.
fREE eSTIMATES
Get a fast, free, no-obligation estimate for your residential pressure washing project, with most quotes provided within 24 hours.
flexible scheduling
We work around your schedule with flexible appointment times, including evenings and weekends, to minimize disruption to your daily routine.
sENIOR AND vET dISCOUNTS
As a locally owned business, we proudly offer special discounts for seniors and veterans as a thank you for your service to our community.
fREE sIDEWALK cLEANING
Enjoy complimentary cleaning of up to 20 feet of sidewalk with every residential service. Our way of saying thanks for choosing NW Pressure Washing.
cUSTOMER fOCUSED
Your satisfaction is our priority, and we take the time to understand your specific needs, answer all your questions, and deliver results that exceed your expectations.
Ready to restore your roof and protect your home? NW Pressure Washing Service makes it easy to get started.
Get your free roof cleaning estimate
