Commercial Roofing

DiamondCut Roofing provides top-tier commercial roofing solutions across Calgary. Our team specializes in high-quality installation, proactive maintenance, and reliable repair services. We use premium materials to ensure long-term durability and superior waterproofing for every commercial structure.

Outstanding Commercial Roofing Installation Services in Calgary

When it comes to protecting your business, DiamondCut Roofing is the contractor you can trust. We offer comprehensive commercial roofing services tailored to the unique climate of Calgary. Our experience allows us to handle everything from complex flat roofing systems to traditional shingles. We prioritize safety and quality workmanship on every project, ensuring your property remains secure.

Our professionals work within your budget to deliver solutions that include improved thermal efficiency and robust insulation. Whether you manage retail buildings or industrial warehouses, our roofing services cover all your needs. Contact us today for a free estimate or quote and experience the DiamondCut difference in workmanship and customer service.

Asphalt Shingle Roofing

Our asphalt shingle installation offers a cost-effective, durable solution for sloped commercial roofs. We focus on proper ventilation and high-quality materials to prevent leaks and extend your roof’s lifespan.

Built-Up Roofing

We specialize in multi-layer built-up roofing for maximum waterproofing. This system provides exceptional durability and insulation, making it a premier choice for heavy-duty commercial flat roofing applications in Calgary.

Bitumen Roofing

Modified bitumen offers superior flexibility and strength. Our team ensures precise installation to handle temperature shifts, providing a reliable membrane that protects your business from the harshest Alberta weather.

Rubber Roofing

Ethylene Propylene Diene Terpolymer (EPDM) or rubber roofing is ideal for flat surfaces. It provides an incredible warranty on durability, offering seamless protection and easy maintenance for various commercial areas.

What Our Customers Say About Us

      EXCELLENT  
   Based on 63 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Ken Chan 
 
 
 
 Trustindex verifies that the original source of the review is Google. I'd like to give a big thank you to Steve and DiamondCut Roofing for the excellent work the full roof replacement they did to my house. The team was professional, efficient, and clearly committed to high-quality workmanship. The new roof looks fantastic. What really stood out to me was their care for the surrounding area. Throughout the entire project, they kept everything clean, tidy, and well-organized. It made the whole experience smooth and stress-free, which I really appreciated. I'm happy with the service. Their quote is really reasonable and competitive, and you can have a matched invoice eventually with no hassle !  Anyone looking for a reliable and skilled roofing team should give them a call.  Great work and great people!
  
 
      Posted on Google  
   
   Louis Girard 
 
 
 
 Trustindex verifies that the original source of the review is Google. Stephen and Diamond Cut Roofing made my experience of replacing my shingles very easy. Their prices are super competitive, and Stephen's final invoice was identical to the amount on the original quote. Stephen is very responsive over text and phone. The crew has very friendly. Work was completed quickly and on time. This company is meticulously clean. They clean the site daily and do a very thorough job of it. Workmanship is on point and comes with a 10-year guarantee. Highly recommend this company.
  
 
      Posted on Google  
   
   Sherry Clarke Duperre 
 
 
 
 Trustindex verifies that the original source of the review is Google. I hired Diamond Cut for my roof replacement .  They are just finishing up now.  Steve was great to work with, his crew is beyond anything I’ve worked with before.  They did an excellent job but they come with a bonus.   My property was immaculate when they were working on the roof and was cleaner when they left.  I work for a builder and see a lot of crappy workmanship along with debris everywhere.  You won’t be disappointed with Steve and his crew.
  
 
      Posted on Google  
   
   S Singh 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had an excellent experience with DiamondCut Roofing. They had the most reasonable estimate for the roofing and sidings damage caused due to hailstorm. The price they quoted was almost half compared to others. They did not charge for repair inspection and the ICC siding color evalution report. Stephen is very knowledgeable as no other vendor had advised me that the siding color might have been discontinued from market so better get the color report before starting the work. He not only provided high quality service but took the ownership to finish the work without any hassle. I will highly recommend DiamondCut Roofing for genuine service for roofing and siding replacement
  
 
      Posted on Google  
   
   aa s 
 
 
 
 Trustindex verifies that the original source of the review is Google. Diamondcut Roofing (Steve)  recently replaced our cedar shakes with Class 4 shingles, and the entire experience exceeded our expectations. From the start, their pricing was fair and accurate compared to the many other quotes we received, and their professionalism and organization really stood out. With a 35-year-old roof, we expected to run into surprises, but Diamondcut was able to mitigate every issue along the way. They kept the pricing reasonable and transparent, so we never once felt caught off guard. The installation was completed to a very high standard, with excellent attention to detail, and the cleanup afterward was just as thorough. We were also able to upgrade some of the vents to 360 vents, and even with that addition, the total cost still came in lower than competitors. We’re so glad we took the time to do our due diligence, because finding Diamondcut meant finding the best roofer for the job. Highly recommended! plus our neighbors were all very impressed with their workmanship.
  
 
      Posted on Google  
   
   Jennifer Wigg 
 
 
 
 Trustindex verifies that the original source of the review is Google. Steve is amazing and fabulous work. Will recommend to everyone I know.
  
 
      Posted on Google  
   
   Joel Burke 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent company. Steve did wonderful work (all my himself!) on our little house and his invoice matched his quote. He was fast, clean, and very professional. Very good pricing also. He was competitive with all the annoying door-to-door roofing sales guys whom I pray will now stop knocking on my door now that we have a nice new roof. Thanks Steve!
  
 
      Posted on Google  
   
   AJ T 
 
 
 
 Trustindex verifies that the original source of the review is Google. This company was the best to deal with. Steve, Ryan and the rest of the team are all great. We are very happy with the repairs they did in our house. Very thankful and would 100% recommend them. Thanks again DiamondCut!!!
  
 
      Posted on Google  
   
   Matthew Cooper 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great communication and obviously dedicated to doing a excellent job. We had a tough roof to repair and they made sure it was finished to their high expectations.

For commercial roof Installation Services

Roof maintenance for commercial properties

Regular roof maintenance is essential for any property owner looking to avoid costly replacement. At DiamondCut Commercial Roofing, our inspection program identifies minor leaks, drainage issues, and worn materials before they become emergencies. We provide detailed reports for our clients, focusing on safety and the structural integrity of the building. By choosing our maintenance service, you ensure your warranty remains valid and your roof performs optimally year-round. Don’t wait for a leak to disrupt your business; let our professionals protect your investment with proactive care.

Common Roofing Problems

Ponding water on flat roof surfaces

Poor drainage causes standing water, which stresses the flat roofing structure. Our team corrects the pitch and improves gutter systems to ensure effective water runoff and long-term durability.

Tears or cracks in the rubber membrane

Extreme Calgary weather can cause the membrane to crack. We provide expert repair and coating services to restore waterproofing and prevent moisture from damaging your insulation.

Loose flashing around vents and roof edges

Damaged flashing is a primary source of leaks. We secure all edges and skylight perimeters, ensuring a watertight seal that protects your building from internal water damage.

Drainage blockage leading to standing water

Debris in gutters and drains leads to significant leak risks. Our maintenance includes cleaning and clearing all drainage paths to keep your commercial roofing system functioning perfectly.

Wind uplift loosening membrane sections

High winds can peel back roofing materials. Our professionals reinforce loose sections, ensuring the membrane is securely bonded to the structure for maximum wind resistance and safety.

Roof leaks around skylights or penetrations

A skylight or vent is a common failure point. We use advanced waterproofing techniques to reseal these areas, stopping leaks and maintaining the thermal envelope of your property.

Repair vs. Replacement

Choosing between repair and replacement depends on the age and condition of your roof. If the structure is sound, a targeted repair or protective coating can save your business money. However, if leaks are chronic, a full installation might be more cost-effective. DiamondCut Roofing provides honest assessments to help you make the right choice for your budget.

Commercial Flat Roof vs Pitched Roof

Flat roofing is common for large commercial buildings, offering space for HVAC units and easy maintenance. Conversely, a pitched roof uses shingles or metal to shed snow and water rapidly. Both require specific materials and ventilation strategies. Our team has the experience to handle both designs, ensuring optimal insulation and durability regardless of the roof’s shape.

For residential or commercial roof repair Services

Commercial roofing contractors near me

Searching for the best roofers in Calgary? DiamondCut Commercial Roofing is the local contractor dedicated to serving the area with excellence. We understand the specific roofing needs of local businesses, from small shops to massive industrial complexes. Our customers value our transparency, providing a clear quote and a commitment to high-quality installations. We handle everything from the initial inspection to the final cleanup, ensuring your project is completed on time. As a leading company in the region, we take pride in our work and our reputation for being the most reliable commercial roofing experts. Call us today for your professional roofing estimate.

Calgary

Okotoks

Airdrie

Chestermere

High River

Strathmore

Bragg Creek

Cochrane

Recent Projects

View our portfolio of successful commercial roofing installations across Calgary. From flat membrane systems to metal repairs, our team delivers quality workmanship that stands the test of time.