Commercial Flat Roof Installation

Rated 9.1/10 by 148+ Happy Customers

  • 70+ Years of Experience — Established reputation for providing quality roofing replacement services in the community.
  • Fully-Licensed — Properly licensed in Ontario to perform roofing work.
  • Fully-Insured — WSIB and general liability coverage.

About George Kent’s Flat Roofing Systems

George Kent Home Improvements is a family-owned and operated roofing company in Mississauga, providing commercial flat roofing services to the GTA for over 10 years. Our experienced team of roofers are experts in all types of commercial roofs, including Single-Ply Membrane, Modified Bitumen, and Built-up roofing systems.

Get Your Online Quote


Click “Get a Quote” and submit your contact information.


We will meet to assess the needs of your building, and give you an in-depth analysis of what work is required.


We’ll confirm the time and date of the project with you.


Our team will start and finish on time and within budget.

Our Lifetime Roofing Warranty

At George Kent, we are proud to offer industry-leading lifetime warranties on materials and labour for our roofing installations — and our installations are not prorated. Additionally, your warranty is transferable to future building owners and backed by the manufacturer (GAF).

Our warranties set us apart in an industry where typical roofing warranties are closer to five years or less. If you’re unhappy with your roof at any point after it has been installed, get in touch and we will be happy to resolve the problem.

Commercial Flat Roofers in Mississauga

No job is too big for our roofing team. If you’re looking for a new installation, choose George Kent for a fast and simple online quote.

Trusted for Over 70 Years

If you want your flat roof installed correctly the first time, choose a commercial roofing company with a reputation you can trust.

No Subcontracting

As a Master Elite roofing contractor, our team of flat roofers are factory-trained and certified by GAF. You can depend on us for expert installation and a warranty you can rely on.

Quality Materials

We only use materials from the leading manufacturers in the industry, so you can rest assured that your roof will be of the highest quality.

What is Flat Roofing?

Flat roofing is a type of roofing system created for relatively level surfaces, in comparison to traditional pitched roofs. With industrial and commercial buildings accumulating significant quantities of water and snow over the changing seasons, flat roofs typically combine tar and gravel, and other waterproof materials, to form a seal that protects against pooling water.

The Different Types of Flat Roof Materials

The different materials used for flat roofs in Mississauga come in a wide range of options, depending on your needs and budget. Some examples include:

Single-Layer Membrane Flat Roof

Single-ply roofs use wide width sheeting designed for low slope roofs. They have far fewer seams than asphaltic rolled roof systems and don’t require dangerous torches or hot asphalt for installation.

Built-up Roof (BUR)

Built-up roofing or BUR roofs include multiple layers of protection to keep your building watertight. These systems are aesthetic, resistant to heavy foot traffic, and have been used for over 100 years.

Modified Bitumen

Modified bitumen is a type of roofing that is similar to the BUR roof system. It is made of asphalt combined with rubber or plastic, then reinforced with fibreglass to create a waterproof membrane.

Comparing Flat Roofing Materials

The following list includes some popular types of roofs with their respective pros and cons so you can consider what best suits your needs.

Built-Up Roof


  • Fire resistant
  • Looks appealing
  • Cost-effective


  • Very heavy
  • Requires professional installation
  • Gravel can clog scuppers and gutters

Modified Bitumen Roof


  • DIY installation is possible
  • Energy efficient
  • Inexpensive


  • Not tear-resistant
  • The torch-down application creates a fire hazard

Single-Ply Roof


  • Tear and scuff resistant
  • Easy to install and repair


  • Expensive
  • Susceptible to punctures

What Our Customers Are Saying

Our Roofing Flat Roofing Expertise

Flat Roofing Repairs

Have a leak or need a flat roof inspection? Get your roofing system repaired and avoid damage. We have repaired countless leaks and performed hundreds of inspections, so we know how to quickly identify the source of the problem and get it fixed fast.

Flat Roof Coating and Restoration

Coatings and restoration can help to repair minor damage and leaks, as well as protect your roof from future wear and tear. It is important to have a professional inspect your roof regularly to ensure that it is in good condition and identify any potential problems before they become major issues.

Residential Roof Installation

Our roofing installers adhere to all safety regulations and undergo rigorous, ongoing training. When we finish working on your roof, we’ll clean up thoroughly and leave the work site spotless.

Residential Roof Replacement

We provide expert advice on all things related to roofs, from what material is best for your climate and budget, to how to replace an old roof without damaging your home. Plus, we offer competitive prices on all our services so you can get the most for your money.


What is the cheapest commercial flat roof?

Modified bitumen is the cheapest commercial flat roofing system. While the lifespan of modified bitumen is shorter than other roofing systems, with regular maintenance you can maximize your investment.

What is the lifespan of a flat roof?

The materials used in a flat roof’s construction largely determines its lifespan. For example, a multi-layer built-up roof made of waterproofing, tar, and gravel can last 15-20 years.

Do flat roofs require additional maintenance?

Flat roofs generally require more maintenance than sloped roofs, due to the accumulation of leaves and debris collecting on them.

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