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Commercial Roofing Contractors in Oregon

Since 1988, we’ve earned a reputation as the go-to commercial roofing contractor in Portland, OR. We specialize in steep and low-slope large-scale projects, from churches to schools, multi-family apartment complexes, and more. Our project management team prides itself on communication and planning, ensuring your project goes off without a hitch. Contact us today for a free estimate. 

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Roofing Warranty
Multi-family roofing project in Oregon

Our Commercial Roofing Services

No job is too large for our commercial roofing team. We understand the importance of communication and coordination and are prepared to tackle projects of any scale. Whether it’s a flat roof, steep slope, or low slope commercial roof, we have the experience and expertise to handle it.

Commercial Roof Replacement

Elevate your commercial property in Oregon with Interstate Roofing's premier commercial roof replacement service. Our expert teams specialize in using top-tier materials to create a robust and modern roof, providing both durability and a professional appearance. Say farewell to leaks and deteriorating roofing materials as we deliver hassle-free solutions tailored to meet the unique needs of your commercial space.

Commercial roof replacement contractors

Elevate your commercial property in Oregon with Interstate Roofing's premier commercial roof replacement service. Our expert teams specialize in using top-tier materials to create a robust and modern roof, providing both durability and a professional appearance. Say farewell to leaks and deteriorating roofing materials as we deliver hassle-free solutions tailored to meet the unique needs of your commercial space.

Commercial Roof Replacement

Commercial Roof Repair

Safeguard your commercial property with our specialized commercial roof repair services. Our experienced roofers focus on precise solutions, seamlessly replacing damaged sections or shingles for optimal performance. Rely on us to safeguard your investment through a customized and dependable assessment of your commercial roof repair needs.

Commercial contractors performing commercial roof repair

Safeguard your commercial property with our specialized commercial roof repair services. Our experienced roofers focus on precise solutions, seamlessly replacing damaged sections or shingles for optimal performance. Rely on us to safeguard your investment through a customized and dependable assessment of your commercial roof repair needs.

Commercial Roof Repair

Commercial Roof Cleaning & Maintenance

Get more out of your commercial roof with our maintenance services. The Interstate roof cleaning and maintenance program meets manufacturer and workmanship warranty recommendations for roof care. Our services are designed to uphold roof aesthetics, ensure compliance with warranty standards, and safely extend the lifespan of your commercial roof.

Annual commercial roof maintenance services in Portland and Vancouver

Get more out of your commercial roof with our maintenance services. The Interstate roof cleaning and maintenance program meets manufacturer and workmanship warranty recommendations for roof care. Our services are designed to uphold roof aesthetics, ensure compliance with warranty standards, and safely extend the lifespan of your commercial roof.

Emergency repair icon Emergency Roofing

We're available around the clock, 24 hours a day, 365 days a year, to address emergency commercial roof repairs. If you spot a leak, don't wait - call Interstate!

Emergency roof repair services for commerical roofing

We're available around the clock, 24 hours a day, 365 days a year, to address emergency commercial roof repairs. If you spot a leak, don't wait - call Interstate!

Our Commercial Roofing Materials Steep-slope, low-slope, and commercial flat roofing in Oregon

The best roof material for your commercial property depends on the slope of your roof. You can rest assured that our roofing expert will recommend the right material for significant long-term benefits on your building.

Composition Roofing

For steep slope roofs (churches, apartment buildings), we recommend composition roofing. Composition shingles are a versatile and durable option, making them a perfect solution for steep-slope roofs - made from a mix of asphalt, fiberglass, and mineral granules.

Asphalt roofing shingles for commercial roofs

For steep slope roofs (churches, apartment buildings), we recommend composition roofing. Composition shingles are a versatile and durable option, making them a perfect solution for steep-slope roofs - made from a mix of asphalt, fiberglass, and mineral granules.

TPO Roofing

For low-slope roofs (warehouses, office buildings, and medical offices), we recommend single-ply TPO roofing. TPO is made from a blend of plastic and rubber. It’s an extremely durable and cost-effective solution for large-scale flat roofs.

Thermoplastic Polyolefin Roofing for Flat Commercial Roofs

For low-slope roofs (warehouses, office buildings, and medical offices), we recommend single-ply TPO roofing. TPO is made from a blend of plastic and rubber. It’s an extremely durable and cost-effective solution for large-scale flat roofs.

Commercial Roofing Projects In Oregon

We’re The Best Commercial Roofing Company in Oregon

Unlike other commercial roofers in Oregon, our expertise goes beyond training and experience. We have an entire team dedicated to the project that will collaborate closely with you and on-site personnel to guarantee a smooth construction project. Our process ensures minimal disruption to regular business operations and residents. When we install roofing on a large commercial structure (like apartment complexes), our project management team collaborates closely with you and on-site personnel to guarantee smooth construction and minimal disruption to regular business operations.

What we provide: 

  • Tenet notice letters, explaining the construction schedule, safety zones, and parking changes 
  • Construction Maps with locations of drop boxes and parking changes for residents and visitors
  • Safety zones
  • Onsite supervision 
  • Daily communication with property owners 
Duplex and Apartment Roofing

Industry-Leading Roof Warranty 

We know how important a good warranty is. That is why Interstate offers industry-leading warranty options from our incredible workmanship warranty to top-tier manufacturer warranties. You will have the peace of mind that comes with knowing your new roof is covered! 

Reviews From Portland-Vancouver Area Roofing Customers Hundreds Of 5-Star Reviews

Read all Reviews
Jim B.
Interstate was always prompt

From quality products to quality people, it is easy to see why so many neighbors already chose Interstate Roofing. While comparison shopping, I found some competitors could take days to a week to respond, but Interstate was always prompt. Communication through...

From quality products to quality people, it is easy to see why so many neighbors already chose Interstate Roofing. While comparison shopping, I found some competitors could take days to a week to respond, but Interstate was always prompt. Communication throughout the install was great. They had installers available, so our 2-story was completed in one day. The unpredictable weather had us worried as we’ve seen some companies take over a week.

Tess J.
Very thorough

We had an excellent experience with Interstate roofing. Oscar and Franco did the 2 day job. Oscar was informative and professional, taking pictures of the before and after. They blew off leaves and washed some of the siding for us. Oscar let me know every step...

We had an excellent experience with Interstate roofing. Oscar and Franco did the 2 day job. Oscar was informative and professional, taking pictures of the before and after. They blew off leaves and washed some of the siding for us. Oscar let me know every step and how long it would be and they cleaned up nicely when they were done. They sent out their inspector after the job was completed to make sure everything was done correctly. Very thorough.

Isabella D.
Confident in my decision to hire them

The crew at Interstate were friendly and hard working. I felt like the sales person was honest and experienced and I was confident in my decision to hire them. The daily crew worked hard and cleaned up after each day. They came back at the end to clean up debr...

The crew at Interstate were friendly and hard working. I felt like the sales person was honest and experienced and I was confident in my decision to hire them. The daily crew worked hard and cleaned up after each day. They came back at the end to clean up debris at my neighbor's house as well. I appreciated the communication and think the roof looks amazing. I would have appreciated a more comprehensive materials list because there was some confusion at the end of the job about whether or not the left over materials belonged to me or not, but I didn't have that information so I can't be certain. All in all I think they did a great job and would be happy to recommend them to others.

Katie W.
If you want the job done right use Interstate Roofing

I am beyond thrilled with the job Interstate Roofing did for us. We have used other roofing companies in the past, however Interstate surpassed all of them from our interactions from start to finish. Their estimate was well detailed, the workers were here o...

I am beyond thrilled with the job Interstate Roofing did for us. We have used other roofing companies in the past, however Interstate surpassed all of them from our interactions from start to finish. Their estimate was well detailed, the workers were here on time each day and communicated with me about their progress, they kept me informed on what needed repair versus just clean. The best part is I left on day one, looking outside and seeing all the debris all over our yard and I was concerned, however upon returning home they did such an amazing cleanup job it was like they weren’t ever here. On the second day not only did they clean up they also power rinsed the entire house, it all looked amazing. If you want the job done right use Interstate Roofing!!!

Andrew K.
Competitive and professional

Of the 8 quotes we got for a new roof, Interstates was both the most competitive and professional. Ronnie and co did a great job from bidding to start date, and the crew worked long days to get the job done fast. All in a great experience.

Rob W.
Very pleased with the crew

We had a leak in the low-slope roof over the third story of our house. Interstate replaced old plywood and agreed to change the job description to eliminate instead of replace the skylight. We are very pleased with the crews, led by Roman and Mark, and and the job they did.

Frequently Asked Questions

The best commercial roofing contractor in Portland has to understand more than roof installation. Commercial projects require planning, tenant communication, safety zones, project phasing, material expertise, and minimal disruption to daily operations. Interstate Roofing is a trusted choice for Portland commercial roofing because we work on steep-slope and low-slope properties, and our project managers coordinate closely with owners, property managers, and staff to keep the project organized from start to finish.

Commercial roof repair may be enough if the damage is limited to a leak, puncture, flashing issue, drainage problem, or isolated worn section. Replacement is usually the better option when the roof has widespread membrane failure, repeated leaks, saturated insulation, major storm damage, or aging materials that no longer protect the building.

Yes. TPO roofing is a strong option for many flat and low-slope commercial roofs in Portland. It creates a durable, energy-efficient water barrier and works well for large roof surfaces where standard shingles are not appropriate. TPO is a practical choice for commercial properties because it’s cost-effective, resilient, and protects against standing water.

The best commercial roofing material depends on your roof slope, building use, drainage, budget, and long-term maintenance needs. Composition asphalt shingles can work well for steep-slope commercial buildings, multifamily properties, churches, and businesses with residential-style rooflines. TPO is usually a better fit for flat or low-slope commercial roofs because it forms a continuous membrane designed for waterproofing.

Commercial roof replacement costs in Portland depend on roof size, slope, roof access, material type, insulation needs, drainage details, and tear-off requirements. A small steep-slope commercial roof will price differently than a large flat TPO roof or a multifamily building with multiple roof sections. Interstate Roofing provides free commercial roofing estimates so property owners can get pricing based on the actual roof.

Yes. Interstate Roofing offers commercial roof cleaning and maintenance in Portland. Preventative maintenance can help extend roof life, uphold warranty requirements, identify small defects before they become leaks, and reduce unexpected disruptions to your building. Commercial roof maintenance may include inspections, cleaning, debris removal, drainage checks, and minor repairs.

Yes, Interstate Roofing is available 24/7, 365 days a year for commercial roofing emergencies in Oregon. If your commercial building has an active leak, storm damage, punctured membrane, or another urgent roofing issue, our team can respond quickly to protect the building, tenants, equipment, inventory, and operations.

What to Know About Our Oregon Commercial Roofing Services:

  • Services: Commercial Roof Replacement, Commercial Roof Repair, Commercial Roof Cleaning & Maintenance, Emergency Roofing
  • Materials: Composition Roofing, TPO Roofing
  • Warranty: Top-tier workmanship and manufacturer warranties cover all projects
  • Free Quotes: Call us at 503-684-5611 or fill out our online form to schedule a free roofing quote!
  • Financing: Affordable roof financing and payment plans for Oregon homeowners. Bad credit financing opportunities also available.
  • Reputation: Top-rated residential and commercial roofing company serving the greater Portland, OR area since 1988. 4.8 Google rating with 774 reviews.