THE 10 BEST Roof Waterproofing Services in PORTLAND, OR
| Business Name | Key Services | Best For | Address | Hours | PS Rating |
|---|---|---|---|---|---|
| USA Roofing & Waterproofing LLC | Residential/commercial roofing, waterproofing systems, repairs, inspections | Complete waterproofing solutions | 6423 NW St Helens Rd, Portland, OR 97210 | Mon-Sat 7:00 AM – 5:00 PM, Sun Closed | 4.5/5 |
| TerraFirma Foundation Systems | Foundation repair, basement waterproofing, crawl space encapsulation | Foundation and basement waterproofing | 13110 SW Wall St, Portland, OR 97223 | Mon-Fri 8:00 AM – 5:00 PM, Sat-Sun Closed | 4.4/5 |
| McDonald & Wetle | Commercial roofing, waterproofing, maintenance, repairs | Commercial waterproofing services | 2020 NE 194th Ave, Portland, OR 97230 | Mon-Fri 8:00 AM – 4:00 PM, Sat-Sun Closed | 4.6/5 |
| Pacific Exteriors NW | Siding, roofing, waterproofing, water damage repair | Building envelope waterproofing | 4217 NE Mason St, Portland, OR 97218 | Mon-Sun 7:00 AM – 11:00 PM | 4.3/5 |
| Best Choice Roofing | Roof replacement, repairs, installations, waterproofing | Residential roof waterproofing | 9498 SW Barbur Blvd, Suite 310, Portland, OR 97219 | Mon 1:00 AM – 11:00 PM, Tue-Fri 2:00 AM – 11:00 PM | 4.7/5 |
| Axiom Roofing Oregon | Commercial roofing, waterproofing, maintenance, design | Large scale commercial projects | Portland, OR (Multiple locations) | Mon-Fri 8:00 AM – 5:00 PM | 4.5/5 |
| John’s Waterproofing | Basement waterproofing, crawl space repair, foundation work | Basement and crawl space waterproofing | 219 Airport Rd, Silverton, OR 97381 | Mon-Fri 8:00 AM – 5:00 PM, Sat-Sun Closed | 4.6/5 |
| Professional Roof Consultants | Roof consulting, waterproofing consulting, inspections | Independent roof consulting | 606 SE 9th Avenue, Portland, OR 97214 | Mon-Fri 8:00 AM – 5:00 PM | 4.5/5 |
| Portland Roofing Company | Residential/commercial roofing, repairs, maintenance | Emergency roof repairs | 14415 SE Stark St, Portland, OR 97233 | Mon-Fri 8:00 AM – 4:30 PM, Sat-Sun Closed | 4.2/5 |
| KVN Construction | Roof replacements, repairs, waterproofing, ventilation | Complete roofing systems | Portland, OR (Serving Portland area) | Mon-Fri 8:00 AM – 5:00 PM | 4.4/5 |

#1. USA Roofing & Waterproofing LLC – Best for Complete Waterproofing Solutions
Key Highlights:
- Over 20 years of experience in residential and commercial roofing with emphasis on waterproofing systems
- BBB A+ rating and GAF Certified with excellent warranties and transferable coverage
- Family owned and operated with no subcontractors, ensuring consistent quality
USA Roofing & Waterproofing LLC stands out as one of Portland’s most trusted names in roof waterproofing. Located in Northwest Portland, this company brings more than two decades of expertise to every project. They specialize in both residential and commercial applications, making them a versatile choice for any property owner.
The team at USA Roofing takes waterproofing seriously. In Portland’s wet climate, this focus is essential. They conduct thorough roof and attic inspections before providing estimates. This helps identify ventilation issues that affect 80% of roofs. Their 15 year craftsmanship warranty backs all installations.
What sets them apart is their commitment to proper venting. They understand that waterproofing isn’t just about the surface materials. The entire system needs to work together. Their crews are directly employed, not subcontractors. This means better quality control and accountability on every job.
#2. TerraFirma Foundation Systems – Best for Foundation and Basement Waterproofing
Key Highlights:
- Since 2005, specializing in foundation repair and comprehensive waterproofing solutions
- Uses patented products from the SupportWorks network with lifetime transferable warranties
- Free in home assessments with customized repair plans for each property
TerraFirma Foundation Systems has been keeping Northwest homes dry and stable for nearly two decades. While they’re known for foundation work, their waterproofing expertise is exceptional. They understand that water problems start from the ground up.
The company operates throughout the Portland metro area including Tigard and Beaverton. Their team specializes in basement waterproofing using advanced drainage systems and sump pumps. Portland’s high water table and heavy rains create unique challenges. TerraFirma’s systems are designed specifically for these conditions.
They offer optional monitoring systems to ensure your waterproofing performs as expected. Their helical piers and push piers stabilize foundations while waterproofing protects against moisture. Every project includes a detailed inspection and customized solution. The company stands behind its work with extensive warranties that transfer if you sell your home.
#3. McDonald & Wetle – Best for Commercial Waterproofing Services
Key Highlights:
- Nearly 100 years of experience serving Portland and Seattle metro areas since 1921
- Specializes in commercial and industrial roof waterproofing with comprehensive services
- 24 hour leak response and emergency repair services available
McDonald & Wetle is a Portland institution with almost a century of roofing and waterproofing experience. Their longevity speaks volumes about their quality and reliability. They focus primarily on commercial properties, making them the go to choice for businesses and building owners.
The company understands that commercial waterproofing requires specialized knowledge. They apply protective seals to prevent water from entering buildings. This protects valuable equipment and inventory. Their process includes cleaning, priming, and applying specially formulated coatings.
McDonald & Wetle serves schools, churches, warehouses, and shopping centers throughout the region. Their team brings decades of combined experience to each project. They offer maintenance programs to extend the life of your waterproofing system. When emergencies happen, their 24 hour response ensures your business stays protected.
#4. Pacific Exteriors NW – Best for Building Envelope Waterproofing
Key Highlights:
- Established in 1994 with nearly 30 years serving the Pacific Northwest region
- Staff includes nationally recognized waterproofing experts accredited in building envelope protection
- Specializes in multifamily apartments, condominiums, and commercial buildings
Pacific Exteriors NW brings specialized expertise to complex waterproofing challenges. Their team includes some of the nation’s foremost waterproofing experts. This level of knowledge makes them ideal for larger buildings and challenging projects.
The company has been serving Oregon and Washington since 1994. They’ve seen every type of water intrusion problem the Pacific Northwest can throw at a building. Their experience with Portland’s seasonal rain and moisture is unmatched. They deliver personalized service that national companies struggle to provide.
Pacific Exteriors handles complete building envelope work including siding, windows, roofing, and waterproofing. This comprehensive approach ensures all components work together properly. They’re particularly skilled at diagnosing and repairing water damage in existing buildings. Their work helps maintain property values and prevents costly future repairs.
#5. Best Choice Roofing – Best for Residential Roof Waterproofing
Key Highlights:
- Owens Corning’s Largest Platinum Preferred Contractor with three decades of experience
- Provides lifetime warranties on both materials and workmanship for peace of mind
- Same day emergency repairs available with next morning priority for after hours calls
Best Choice Roofing of Portland represents the pinnacle of residential roofing excellence. As an Owens Corning Platinum Preferred Contractor, they meet the highest industry standards. This prestigious status reflects their commitment to quality craftsmanship and customer satisfaction.
The company specializes in residential properties throughout the Portland area. They understand that homeowners need reliable waterproofing to protect their investment. Their team uses high quality synthetic underlayment installed with button caps instead of staples. This superior technique provides better water protection.
Best Choice Roofing communicates clearly through every step of the process. They treat every job as if it’s under third party inspection. Their focus on proper ventilation systems helps prevent moisture problems. With decades of real estate and construction experience, they know what Portland homes need to stay dry and protected.
#6. Axiom Roofing Oregon – Best for Large Scale Commercial Projects
Key Highlights:
- Over 25 years of experience as masters of commercial roofing and waterproofing construction
- Internal team of expert designers, estimators, and project managers for complex projects
- Specializes in cutting edge waterproofing technology with continuous employee education
Axiom Roofing Oregon has built a reputation as the Northwest’s top commercial roofing contractor. With more than 25 years of experience, they’ve become experts in large scale waterproofing projects. Their knowledge and skill set them apart from competitors.
The company invests heavily in employee education. This ensures their team stays current on the latest waterproofing technology. They provide clients with proven solutions backed by years of successful installations. Axiom handles everything from design through installation.
Their transparency in pricing gives clients peace of mind. They never oversell customers. Instead, they tell you exactly what you need to solve your waterproofing problems. Axiom works with building owners to determine whether you need a new roof, coating, or corrective repairs. Their commitment to honesty and quality has made them a trusted partner for commercial property owners.
#7. John’s Waterproofing – Best for Basement and Crawl Space Waterproofing
Key Highlights:
- Family owned business serving Oregon and Washington since 1974 with over 50 years experience
- Authorized Basement Systems dealer using 21 patented products and 15 innovation prize winners
- Completed high profile projects including US Court House and President’s Mansion at Linfield College
John’s Waterproofing has been making basements and crawl spaces healthy for five decades. This family owned company operates out of Silverton but serves the entire Portland metro area. Their longevity demonstrates their commitment to quality and customer service.
The company uses the best products in the industry. As a Basement Systems dealer, they have access to patented waterproofing solutions. These systems come with lifetime transferable warranties. John’s has waterproofed everything from residential homes to historic buildings.
Their team conducts thorough inspections to identify exactly how water enters your space. Then they design a customized solution for your specific needs. Services include sump pumps, drainage systems, vapor barriers, and crawl space encapsulation. They also offer radon testing and mitigation services. John’s stands ready to help with any problems in the years to come.
#8. Professional Roof Consultants – Best for Independent Roof Consulting
Key Highlights:
- Over 30 years providing independent building envelope consulting services in Portland
- Helps building owners, property managers, and architects minimize risk and maximize value
- Offers objective analysis without conflicts of interest from installation services
Professional Roof Consultants takes a different approach to waterproofing services. As an independent consulting firm, they provide objective expertise without selling installation services. This eliminates conflicts of interest and ensures you get honest advice.
The company has served the Pacific Northwest for more than three decades. They specialize in roofing, waterproofing, and exterior wall consulting. Their team helps clients analyze existing roofs and develop budgetary estimates. This service is invaluable when planning major projects.
Professional Roof Consultants works closely with school districts, commercial properties, and building managers. They help prioritize repairs and replacements based on actual needs. Their detailed inspections identify problems before they become expensive emergencies. While they don’t perform installations, they ensure your waterproofing projects meet the highest standards.
#9. Portland Roofing Company – Best for Emergency Roof Repairs
Key Highlights:
- Prompt service and competitive pricing with focus on customer satisfaction
- Comprehensive residential and commercial roofing services including waterproofing
- Regular business hours Monday through Friday with emergency response available
Portland Roofing Company delivers reliable service when you need it most. Located on SE Stark Street, they serve homeowners and businesses throughout the metro area. Their reputation for prompt response makes them ideal for emergency situations.
The company handles everything from minor repairs to complete waterproofing systems. They understand that roof leaks can’t wait. Water damage gets worse with every passing hour. Their team moves quickly to assess problems and implement solutions.
Portland Roofing Company uses quality materials and professional installation techniques. They focus on getting the job done right the first time. Their competitive pricing makes professional waterproofing accessible to more property owners. Regular hours make it easy to schedule inspections and routine maintenance. When emergencies strike, they respond quickly to protect your property.
#10. KVN Construction – Best for Complete Roofing Systems
Key Highlights:
- Premier roofing contractor serving Portland since 1956 with nearly 70 years experience
- Specializes in full roof replacements, repairs, waterproofing, and ventilation systems
- Malarkey Roofing Products specialist, supporting locally owned manufacturers
KVN Construction brings nearly seven decades of roofing expertise to Portland. Since 1956, they’ve installed systems built to last. Their long history in the community demonstrates their reliability and quality workmanship.
The company offers comprehensive roofing services with strong emphasis on waterproofing. They understand that proper waterproofing requires more than just surface treatments. The entire roofing system must work together. KVN specializes in roof ventilation, which plays a critical role in preventing moisture problems.
As specialists in Malarkey Roofing Products, they support local manufacturing. Malarkey is a Portland based company known for quality materials. KVN’s expertise with these products ensures optimal performance in Pacific Northwest conditions. They handle both residential and commercial projects with equal skill. Their complete approach to roofing systems provides long lasting protection against water intrusion.
How Much Does Roof Waterproofing Cost in Portland?
Roof waterproofing costs in Portland typically range from $4 to $15 per square foot depending on several factors. The type of waterproofing material makes a big difference in price. Basic coatings and sealants start around $1.50 to $2.50 per square foot for materials and installation. More advanced systems using silicone or polyurethane can cost $4 to $9 per square foot.
For an average sized Portland home, complete roof waterproofing usually runs between $2,000 and $8,000. Flat roofs are generally less expensive to waterproof than sloped roofs because they’re easier to access and work on. Commercial buildings with larger roof areas see costs in the tens of thousands.
Several factors affect your final cost. The current condition of your roof matters a lot. If repairs are needed before waterproofing, expect additional charges. The size and pitch of your roof impact labor costs. Steeper roofs are more difficult and dangerous to work on. The specific waterproofing system you choose also plays a major role. Premium materials with longer warranties cost more upfront but can save money over time.
What Are the Benefits of Waterproofing Your Roof?
Waterproofing your roof provides multiple important benefits for Portland homeowners. First, it prevents water damage and leaks that can destroy ceilings, walls, and valuable belongings inside your home. Portland’s frequent rain makes this protection essential year round.
A properly waterproofed roof extends the life of your entire roofing system. Water is the number one enemy of roofs. By keeping moisture out, waterproofing can add 10 to 20 years to your roof’s lifespan. This saves thousands of dollars in replacement costs down the road.
Energy efficiency improves with modern waterproofing coatings. Many systems include reflective properties that bounce sunlight away from your home. This can reduce cooling costs by up to 30 percent during summer months. Your home stays more comfortable without running the air conditioner as much.
Waterproofing prevents mold and mildew growth in your attic and ceiling spaces. These fungi create health problems for your family and damage wood structures. Keeping moisture out protects both your health and your home’s structural integrity. Property value increases when you can show documentation of proper waterproofing maintenance.
How Often Should You Waterproof Your Roof in Portland?
The frequency of roof waterproofing depends on the materials used and Portland’s weather conditions. Basic waterproof coatings typically need reapplication every 3 to 5 years. Elastic cement systems last longer, usually 8 to 10 years before needing attention. High quality crystalline or weather resistant coatings can protect your roof for over 10 years.
Portland’s climate requires more frequent attention than drier regions. The constant rain, moss growth, and moisture exposure wear down waterproofing systems faster. Experts recommend inspecting your roof condition every 1 to 2 years even if the waterproofing seems fine. Early detection of problems saves money on repairs.
Signs that your roof needs new waterproofing include visible water stains on ceilings, bubbling paint inside your home, or moss growth on roof surfaces. If you notice any leaks or moisture inside your attic, don’t wait. Address waterproofing issues immediately before they cause serious structural damage.
Regular maintenance extends the life of your waterproofing system. Keep gutters clean and remove debris from your roof. Trim tree branches that hang over your roof to reduce moss and prevent damage. Schedule professional inspections at least once per year. This proactive approach catches small problems before they become expensive disasters. In Portland’s wet climate, staying ahead of moisture problems is worth the investment.
