Flat Roof Installation in Portland OR

Expert Flat Roof Installation for Portland Homes and Commercial Buildings

Whether you’re managing a retail storefront in Downtown Portland or updating a modern home in Alberta Arts District, flat roofs are a durable and energy-efficient option for many Portland properties. At HER Roofing, we specialize in precision flat roof installation for both residential and commercial clients across the city — delivering clean, watertight systems built to handle the Pacific Northwest climate.

Our Portland-based crew uses top-rated materials and industry-leading techniques to ensure long-term performance, energy savings, and curb appeal. We’ve installed flat roofs in neighborhoods like Buckman, Kenton, and Sellwood-Moreland, each one tailored to the property’s structure and moisture protection needs.

Serving Portland from Gateway to Goose Hollow

Local Knowledge that Supports Smarter Roof Installs

Flat roof performance is all about proper slope, drainage, and waterproofing — and in Portland, it’s even more important. Our team understands the unique challenges of local weather patterns, including high rainfall, tree debris, and seasonal temperature swings. We custom-design every install to handle pooling water, structural transitions, and integration with skylights or rooftop systems common throughout Portland.

Flat Roof Installation Services in Portland

TPO & PVC Flat Roofing

Ideal for residential and commercial flat roof systems, these single-ply membranes resist UV damage and ponding water.

Modified Bitumen Roofing

Durable, multilayer solution for low-slope and flat roofing, with excellent protection against Portland’s heavy rain seasons.

Built-Up Roofing (BUR) Systems

Multi-ply tar and gravel options for traditional commercial structures — often seen in industrial zones near North Columbia Blvd.

Residential Flat Roof Design

Custom designs for ADUs, modern builds, and mid-century homes with flat or low-slope profiles — common in areas like Eastmoreland and Cully.

Why Portland Property Owners Choose HER Roofing

• Locally-Based Teams: We’re familiar with building codes and structural requirements throughout Portland.
• Moisture Management Experts: Our installs are designed with water flow and runoff in mind — no standing water.
• Energy Efficiency Focus: We install reflective membranes and insulations that help control building temperature.
• Clean Job Sites & Compliance: We maintain tidy, secure work zones — especially important for tight urban properties.

Here’s What Portland Clients are Saying About Our Flat Roof Installation Services

 
 
 
 
 
 
 
  
 
 
 
 Posted on Google  
  
 
 Joseph Thornton 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
We had our entire roof replaced in May. Decided to wait until we were into the rainy season to post a review. Received several bids from various contractors. HER roofing wasn't the cheapest but we are glad we chose them. Good communication and excellent product knowledge were what impressed us. Excellent customer service and attention to detail is what we got. If I had to do a new roof all over again, I would choose HER roofing and not even get other bids.
  
 
  
 
 
 
 Posted on Google  
  
 
 Travis Papp 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Smooth estimation process, fair price and quick work!  I will definitely be using HER roofing in the future.
  
 
  
 
 
 
 Posted on Google  
  
 
 Luis Otero 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Very professional in their approach.  Jana came by to give us a quote and went over what was likely to be needed.  The roofing crew came out within a week and clearly communicated the findings and options.  They completed our work in one day and did a phenomenal job!  We’re super happy.
  
 
  
 
 
 
 Posted on Google  
  
 
 LizBETH Abbott Formerly Hale 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Highly recommend HER Roofing Co. Inc. They have a strong reputation for being professional, reliable, and delivering quality roofing work.
  
 
  
 
 
 
 Posted on Google  
  
 
 Aiyah Shepard 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
HER Roofing is an awesome company. I hired them to update gutters at the community I manage. They are efficient and do an amazing job. I could not have hired and trusted a better team to take care of our gutters!
  
 
  
 
 
 
 Posted on Google  
  
 
 Leslie 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Her roofing recently installed new gutters and fixed some problem spots on our roof.  Their quote was reasonable.  They were great at explaining details and questions.  They were quick to get the work done.  The work looks great and looks durable.  I would highly recommend Her Roofing.
  
 
  
 
 
 
 Posted on Google  
  
 
 Brandon McFarland 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
From the first visit with Jana, we felt taken care of. Everything was explained thoroughly and our questions were answered without feeling talked down to or taken advantage of by up selling. We had that issue with a few other companies and it was refreshing to just have a conversation about roofs with an expert to find what we needed to get for our home.

They really lived up to the honesty part in the name, a week or so after the install, they called us up and said that the ice damn shield along the eves was never actually installed and they'd like to come out and fix it. There is no way we would have known that it wasn't installed until replacing the roof in 25 years. They showed up that same day and got it installed.

The crew were all very nice and professional and took their time cleaning up afterwards. If you need a new roof, then I highly recommend HER Roofing!
  
 
  
 
 
 
 Posted on Google  
  
 
 Linda Corisdeo 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
HER was a last minute addition to the list of roofing companies that I requested an estimate to replace our roof. They came out quickly and were very informative. Although they were not the lowest price that we were quoted (they were also not the highest) their estimate was very detailed and specific and it listed out all materials and quantities leaving very little unknown. This gave us the most comfort when paying for such an expensive home repair. From our perspective, the only thing in question that could change the estimate is what they would find when they ripped the old roof off because they have no visibility into what was under there. They got us on the schedule fast and were great at communicating if there were any changes. They also got the job done in 2 days and did a very good job cleaning up both days.
  
 
  
 
 
 
 Posted on Google  
  
 
 Heidi Ryusaki 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
From start to finish, HER Roofing made it so easy. Preston was great during the initial consultation. Explained the entire process and what to expect. Both Jana (owner) and Jazmine (front office) were amazing at communication. They were great at getting back to me quickly with any of my questions. The crew were really friendly, worked quickly, and were incredibly thorough in their cleanup, both during the demo and the final stage. Amazing company!
  
 
  
 
 
 
 
    
 
 

Frequently Asked Questions

Are flat roofs a good idea for Portland’s rainy climate?+

Yes — when installed correctly. We use materials like TPO and PVC, which are specifically designed to handle heavy rainfall and standing water common in Portland neighborhoods like Lents, Goose Hollow, and Laurelhurst.

How long does a flat roof installation take in Portland?+

Most flat roof installs are completed in 3 to 5 days, depending on the size and access conditions. In tighter neighborhoods like Sellwood-Moreland or Buckman, staging and debris removal may affect timelines slightly — but we plan accordingly.

Do I need permits for a flat roof installation in Portland?+

Yes. Most roof replacement or installation work requires a building permit from the City of Portland. Don’t worry — our team handles the permitting process and ensures your new roof complies with local codes and slope requirements.