Roof Cleaning Portland, OR
The Greater Portland Area's Premier Exterior Cleaning
- 100% Satisfaction Guarantee
- 5 year roof cleaning warranty
- 2 year house washing warranty
- 2 week gutter cleaning warranty
Safe, Warranty-Backed Roof Cleaning for Portland Homes and Properties
Cleaning your roof is a highly beneficial service. A roof covered in moss can cause damage to the shingles by degrading them, which shortens the roof’s lifespan. The moss on your roof also holds in moisture, leading to leaks and mold growth. When you clean your roof, it increases its lifespan and structural integrity significantly.
It’s important to hire a company that cleans roofs the right way. Here at 4 Seasons Softwash, we use the only method recommended by the roofing manufacturer called soft washing. Roof soft washing is an effective and safe method for cleaning the roof of your home. Unlike pressure washing, which can damage shingles and other roofing materials, soft washing uses a low-pressure system to gently remove stains and kill moss, algae, lichen, and all the organic matter growing on your roof.
Here at 4 Seasons, we specialize in roof soft washing services in Portland, OR, and Clark County, WA, that are designed to keep your roof looking its best while also prolonging its lifespan. Our team of trained professionals uses top-of-the-line equipment and cleaning solutions to ensure that your roof is cleaned thoroughly and safely. Our roof soft washing services are the perfect solution for maintaining the appearance and integrity of your roof. Contact us today to get a free estimate and learn more about how we can help extend the life of your roof!
Why Portland Homeowners and Property Managers Choose
4 Seasons Softwash
Five-Year Roof Cleaning Warranty
We stand behind our roof-cleaning work with a 5-year warranty. For asphalt shingles, if moss returns within the first 3 years, we clean it for free. In years four and five, we clean it at 50% off. This gives you long-term protection and peace of mind.
Over 20 Years of Combined Experience
Our team brings over 20 years of combined experience to every job. That depth of knowledge means we have seen every type of roof, every level of buildup, and every challenging access situation. We know how to get results safely and efficiently.
We Treat Every Home Like Our Own
This is more than a slogan for us. We say it often because it guides how we work. From protecting your landscaping to cleaning up after ourselves, we bring the same care to your property that we would to our own homes.
Comfortable on Difficult Properties
We have worked on luxury homes valued at $10 million and historic properties that are 120 years old. We regularly take on difficult jobs that other companies say no to. If your roof is steep, your access is tight, or your situation is unusual, we have the experience to handle it.
Customer Service, Experience, and Reliability
When asked why customers choose us, the answer is simple: customer service, experience, and reliability. We show up when we say we will, do what we say we will, and make sure you are happy before we leave.
Licensed, Insured, and Safety-Driven
We are fully licensed and insured, and we follow OSHA safety practices when working on roofs. You never have to worry about liability or cutting corners. Your property and our team are both protected.
SoftWash System Certified
Our SoftWash System certification means we have been trained in proper soft washing techniques that protect your roof while delivering superior cleaning results. This is not just pressure washing with a different name. It is a specialized approach backed by industry standards.
Biodegradable Detergents and Property Protection
We use 100% biodegradable detergent that is safe for people, pets, and plants. We rinse plants before and after cleaning and cover or tarp sensitive areas when needed. If you have concerns about specific landscaping or sensitive areas, we ask about them up front and take extra precautions.
We Make Problems Right Fast
If something is not right, our goal is to fix it the same day or the next morning. We do not let issues linger. We talk directly with you, understand the situation, and resolve it quickly. Your satisfaction is the priority.
Community-Minded Company
We give back, especially during the holiday season. We donate to nonprofits, clean buildings for charitable organizations, put up Christmas lights for those in need, and sponsor golf tournaments and programs that help kids who cannot afford sports or school supplies.
Local Recognition
Our work has been recognized with awards, including Best Business 2026 in Oregon, Best Business 2026 in Clackamas County, and Best Business 2025 in Multnomah County.
Get a Roof Cleaning Quote in Portland Today
How Our Estimates Work for Exterior Cleaning Services
Fast Follow-Up After You Reach Out
When you call us or fill out our form, we aim to get back to you within 60 seconds. We start by learning more about the service you need, your property, and what you want us to take care of before moving toward scheduling your estimate.
In-Person Estimate Scheduled Around Your Service Needs
For most services, we schedule an in-person estimate so we can see the property ourselves and give you the most accurate recommendation. At that visit, we explain the service, answer your questions, and help you understand the best option for your home or building.
Honest Pricing Based on Real Conditions
We price services based on what we actually see, not generic one-size-fits-all packages. Depending on the service, pricing may be based on square footage, material type, accessibility, buildup level, roof pitch, number of panes, or the condition of the surface being cleaned. That means your estimate reflects the real work involved.
Appointment Confirmation and Reminders
Once you approve the estimate, we will get your service on the schedule.
Walkthrough Before the Work Starts
When we arrive, we introduce ourselves and walk you through the job. We go over what we’re cleaning, point out any concerns, and make sure everyone is on the same page before work begins.
Final Walkthrough, Payment, and Review Request
After the job is finished, we do a final walkthrough to make sure everything looks right and that nothing was missed. We want you to understand the work that was completed and feel good about the result.
Frequently Asked Questions
How long does roof cleaning take?
An average roof clean takes about four to six hours. Larger or more heavily soiled roofs may take longer.
How long does it take for moss to come off after treatment?
Moss typically takes four to six months to naturally fall off through wind and rain. The treatment kills the moss and prevents regrowth, but the physical removal happens gradually over time.
Do you soft wash roofs?
Yes. We follow roof manufacturer guidelines through ARMA and use soft washing techniques that clean effectively without damaging your shingles.
Is it okay to clean a roof when it is raining?
Yes. We have special dials on our truck and system that allow us to accommodate rain. The weather does not have to delay your service.
How often should I have my roof cleaned?
We recommend every five to seven years for most homes. If you have heavy tree coverage, you may need cleaning again in two to three years.
What roof types do you clean?
We clean asphalt shingles, tile, and clay, metal, and TPO membrane roofs. We do not clean wooden roofs.
How do you protect plants and pets?
We rinse plants before and after cleaning, cover sensitive areas when needed, and ask about any concerns upfront. Our biodegradable detergent is safe for plants and pets as long as pets are not sprayed directly.
What should I do after my roof cleaning?
Keep your roof and valleys clear of debris. We recommend annual roof debris removal, especially if you have trees nearby. This helps your roof stay cleaner longer and extend its lifespan.
Our Service Area
- Portland, OR
- Clackamas, OR
- Happy Valley, OR
- Lake Oswego, OR
- West Linn, OR
- Damascus, OR
- Milwaukie, OR
- Tigard, OR
- Tualatin, OR
- Wilsonville, OR
- Oregon City, OR
- Canby, OR
- Gresham, OR
- Sherwood, OR
- Aloha, OR
- Hillsboro, OR
- Sandy, OR
- Troutdale, OR
- Estacada, OR
- Camas, WA
- Orchards, WA
- Battle Ground, WA
- Vancouver, WA
- Salmon Creek, WA
- Ridgefield, WA
- Woodland, WA
