Professional Exterior Cleaning For Oregon Homes
Get roof cleaning, gutter cleaning, moss removal, window cleaning, and house washing, all in one place.
Why Us?
Licensed
Oregon Contractor CCB #252799​
Insured
Fully insured with $1M liability coverage​
Rating
4.9/5 stars (130+ Google reviews)​
Guarantee
We’re not happy until you are.
Protect Your Oregon Home's Most Important Investment
Your roof isn’t just shingle, it’s your family’s first line of defense against Oregon’s relentless rain, wind, and moss. When thick moss carpets take over and gutters overflow, you’re not just looking at cosmetic issues. You’re watching thousands of dollars in potential damage accumulate season after season.
We’re NJM Roof & Gutter Cleaning, and we’ve spent years helping homeowners across St. Helens and the Portland Metro area protect their homes before minor issues become major expenses. We’ve cleaned hundreds roofs and cleared gutters throughout Columbia County, and we understand exactly what Oregon’s unique climate does to your home’s exterior.
Whether you’re near Columbia View Park dealing with heavy Douglas fir needle buildup, or in Scappoose’s rural properties facing severe moss growth from our wet climate, we’ve seen it all, and we know how to fix it.
Our Services
We Provide The Best Exterior Cleaning Solutions
Professional exterior cleaning services designed specifically for Oregon’s wet climate. Each service protects your home, extends the life of your property, and improves curb appeal.
Roof Cleaning & Moss Removal
Professional soft-wash roof cleaning safely removes moss, algae, and black streaks from Oregon roofs without pressure washing damage. Our biodegradable cleaning solutions kill growth at the roots and prevent regrowth for 1-2 years. Typical cost: $300-$600 for residential homes.
Gutter Cleaning & Maintenance
Oregon homeowners should clean gutters twice yearly, once in late fall after leaves drop and once in spring after pollen season. Professional gutter cleaning costs $150-$300 for average-sized homes, while foundation repair from water damage averages $4,000-$12,000.
Pressure Washing & House Washing
Professional pressure washing and soft-wash house cleaning restore your home’s exterior, driveways, decks, and walkways by removing years of built-up dirt, algae, mildew, and staining. Average cost: $200-$500 for residential properties.
Window Cleaning
Achieve streak-free, crystal-clear windows that let more natural light into your home and improve your views of Oregon’s beautiful landscape. Professional window cleaning removes hard water spots, pollen buildup, and environmental contaminants.
How It Works
Cleaning Process Made Easy
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Step 1: Request a Free Quote
Contact us by phone, text, or online form. Most estimates can be provided same-day using photos you send us of your roof, gutters, or the area needing service. For more complex projects, we'll schedule a quick 15-minute on-site visit at your convenience.
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Step 2: Schedule Your Service
Once you approve the quote, we'll work with you to find a convenient time that fits your schedule. Most services can be completed within 3-7 days, and we offer priority scheduling for urgent issues like overflowing gutters or pre-inspection cleanings.
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Step 3: We Get To Work
Our professional team arrives on time with all the right equipment, clearly marked vehicles, and a detailed plan. We'll introduce ourselves, explain exactly what we'll be doing, and answer any questions you have before we start.
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Step 4: Enjoy Your Clean Home
After we've finished, we'll do a final walkthrough (in person or via photo/video) to ensure you're completely satisfied with the results. We'll also provide maintenance tips and recommendations for keeping everything in great shape.
Customer Testimonials
A Word From Our Past Clients
Don’t just take our word for it, here’s what our neighbors are saying:
NJM was great! Quick estimate and scheduling. They came out and cleaned debris off our roof, treated it for moss, and cleaned out our gutters. A couple things were missed during the initial visit and I reached out to see if it could be corrected. They came back out (no questions asked) and made sure everything was taken care of. I really appreciated their willingness to ensure all the work was completed and well done. We'll be using NJM in the future. Thanks!
Alexandra Orchard
We have used this company for several years for gutter cleaning and have been impressed with their work. As a result we plan to schedule additional services such as window cleaning, power washing and gutter repairs. They are knowledgeable; staff is well trained; polite and they leave the work area immaculate. Their availability is always flexible to meet our needs. In addition, they are just plain nice and they treat their staff just as nicely. We are happy to recommend them.
Jerry Riggs
From the estimate to the execution, everything was excellent. Received estimate and the next week work was scheduled. I received a house washing, window cleaning and gutter cleaning. Very responsive, great communication and fast efficient work. My house was VERY filthy and it looks as close to brand new a 20 y/o house can. Both gentlemen are professional, knowledgeable and personable. Price for all the work was fair and industry standard. I highly recommend NJM and they now have a long term customer!
Leslie Pepe
Our HOA board contacted Cameron when one of our unit’s gutters needed repaired and cleaned. He responded promptly, gave us a very reasonable quote, and expertly did the needed repairs. He also gave us a quote for annual gutter cleaning & moss maintenance for all units. We highly recommend NJM Roof& Gutter Cleaning.
Cindy Dowds Warmington
The scheduling process for NJM was great, Camron was responsive and was the first of 3 companies to get a quote out and had a lot of availability. I had some concerns about how the gutter cleaning went (some piles of leaves left behind) and i reached out to Camron about it and he addressed it and made it right! Absolutely recommend.
Wes Welsford
My roof was cleaned off with a blower and then the gutters were cleaned out. Finally, debris from the roof was cleaned up from my yard. My roof was also treated so moss would not grow! My Beaverton roof and gutter are clean and ready to survive high winds and an atmospheric river this weekend ! I would hire this company again!
Scott Baker
How It Works
Cleaning Process Made Easy
We’ve made it easy to get a free estimate and book your service.
FREQUENTLY ASKED QUESTIONS
Answers To Your Queries
We offer comprehensive exterior cleaning services including roof cleaning and moss removal, gutter cleaning and maintenance, house washing, pressure washing (driveways, decks, walkways), window cleaning, and Christmas light installation. We handle both residential and commercial properties throughout the St. Helens and Portland Metro area.
Yes, we are fully licensed as an Oregon contractor (CCB #252799), bonded, and carry comprehensive liability insurance ($1M coverage) plus workers’ compensation for all employees. Your property and our team are fully protected.
Getting a quote is easy! You can call or text us at (971) 328-2122, or fill out our online form. For faster quotes, text us photos of your roof, gutters, or the area needing service. Most quotes are provided within 2-4 hours, and many can be given same-day over the phone.
We proudly serve St. Helens, Scappoose, Warren, Deer Island, Columbia City, Beaverton, Hillsboro, Portland Metro, and surrounding communities throughout Columbia County and Washington County. If you’re within 30 miles of St. Helens, we can typically accommodate your location.
Yes! We offer a 100% satisfaction guarantee on all services. If you’re not completely happy with the results, we’ll come back and make it right at no additional charge. For moss treatments, we include a limited regrowth warranty, if treated moss returns within the warranty window, we’ll retreat the affected areas.
We accept cash, all major credit cards, checks, and offer invoicing for commercial clients. Payment is due upon completion unless other arrangements are made. We also offer contactless payment options for your convenience.
Yes, we offer priority scheduling for emergency situations such as overflowing gutters causing active water damage, pre-inspection cleanings for home sales, or storm-related debris removal. Call us at (971) 328-2122 and let us know you have an urgent situation.
Yes! We offer quarterly, biannual, and annual maintenance plans with discounted pricing and priority scheduling. Our most popular plan includes gutter cleaning in spring and fall plus annual roof treatment. Maintenance plan members save 15-20% and get priority booking during busy seasons.
Most jobs can be scheduled within 3-7 days during peak season (spring and fall). During slower periods, we often have availability within 1-3 days. Emergency situations receive priority scheduling and can often be accommodated within 24-48 hours.
Yes! We offer discounts for first-time customers (10% off), multi-service packages (save 15-20% when booking multiple services together), senior citizens and veterans (ask about current offers), and maintenance plan members (15-20% savings). We also run seasonal promotions—check our website or ask when you call.