Since 1976

Commercial &
Industrial Flat
Roofing Specialist

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Specialist in Flat Roofing since 1976

Watertite Roofing BBB Business ReviewWith an A+ rating, the Watertite Roofing - Specialist in Flat Roofing, with over 50 years of experience, lead in the installation, repair, replacement, retrofit, and maintenance of commercial, institutional, and industrial flat roofs. Serving Southern Ontario areas including Hamilton, Mississauga, Burlington, Etobicoke, Niagara Falls, and St. Catharines, we tailor solutions for every flat roofing challenge, focusing on delivering waterproof, durable results that protect buildings, businesses, and properties.

Our team of certified professionals is committed to excellence, using advanced technology and materials to ensure your roof withstands the test of time. We pride ourselves on our integrity, craftsmanship, and outstanding customer service, offering expert advice and comprehensive services for both emergency repairs and full replacements.

Choosing Watertite Roofing - Specialist in Flat Roofing means partnering with specialists who understand the importance of a reliable, leak-free roof. We are dedicated to guiding our customers through the complexities of flat roofing, ensuring satisfaction and long-lasting protection for your investment.

More about Watertite

Professional, accountable, awardable, repeatable and more to come.

Years of Service
Completed Jobs
Repeat or Referral
Specialist in Flat Roofing

Our most recent projects

Maple Grove Place

Recently, we had the privilege of working with Maple Grove Place to enhance the comfort and durability of their facility with a brand-new Duro-Last flat roof system...

How we helped



In the realm of commercial and industrial roofing, innovation isn't just a buzzword; it's a game-changer. And when it comes to revolutionizing roofing solutions...

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What our customers are saying

  • As a custom home builder and renovator we work on many unique projects that require unique products and solutions. We only work with contractors that can provide the level of professionalism, service, and product quality that we demand of ourselves for our clientele. Watertite Roofing is one of those contractors who sets the bar higher for others. Their response time, organization of operations, and delivery on service is rarely paralleled. And they install a durable, well warrantied product that takes a load off our minds. We wouldn't use anyone else.
    David Tucker
  • Watertite did an amazing job with our rooftop terrace installation, very professional and built to last many years. I would recommend them to anyone looking for a solution that is long lasting and low maintenance. Amazing job!
    Glenn Edwards
  • Zak at Watertite was fantastic! Called him up to get a quote and was very happy with the responsiveness. The work was completed as promised and in a very professional. Would definitely recommend them for any roofing needs.
    D. B.
  • Great responsiveness, good value and no hidden costs. Would not hesitate to recommend this company to anyone needing roof work. Chris Elgar of C Elgar Holdings Limited.
    Chris Elgar
  • There’s a reason the Watertite team consistently receives glowing reviews & is a highly rated Better Business Bureau member - such standing can only be earned - by consistently delivering a high-quality service & customer experience. To start, Zak prepared a detailed quote that included photos & clearly outlined what needed to be done & why. Thereafter, Zak dispatched a highly skilled, professional team to make the much-needed repairs. Thank you Zak & team - you are a credit to your profession! In an industry fraught with unscrupulous characters, it’s a comfort knowing the Watertite team’s business model subscribes to such old-fashioned values as honesty, integrity, quality, & doing what they committed to do. Better Business Bureau membership is a key differentiator in an industry that lacks governance, oversight & consumer protection enforcement.
    C Prescott
  • Well, we started by looking for an award-winning roofing material that could withstand the harsh Canadian weather. Then we discover Dura-Last – the most advanced vinyl roofing material ever developed. In so doing we also discovered an award winning flat roofing installer, even recommended by Dura-Last themselves. Turns out Watertite Roofing is the best flat roofing installer in Canada, serving right here in Southern Ontario. Went to their office, and I couldn't believe the number of awards that they have received. Hall walls full of awards. Nobody gets that many awards unless you're real good. So we not only get an Award winning product to protect our commercial investment, but we get the award-winning installers to boot. Don't gamble with your commercial properties - Watertite Roofing; the flat roofing specialists.
    Don Cormier
  • In 2018 the team at Watertite installed a new flat roof on our building. Being that it was fairly new product and procedures to us we were a bit apprehensive at first. However, Zak and the team were great to deal with in terms of explaining the new product and installation procedures and it really eased our mind during the decision making process. During installation the team couldn't have been better. Quick, clean and efficient, very knowledgeable and upon completion they took the time to explain the do's and don'ts as well as general maintenance tips for us to follow. This past week during the excessive snow storms we've had in our area we had some water dripping into our office and showroom. Zak had a team member over the next business day to have a look, at no charge. He did the best he could to clear the water and ice from a frozen eavestrough and downspout that was causing water to travel behind siding and under the membrane. We are very grateful for them to have come out so quickly and not even charge us even though the leak wasn't even from their roof installation! We have another project in the works for the spring time and we will definitely be going with the team at Watertite again!
    Steve Yendt
  • Watertite Roofing is very professional. The quality of their work is outstanding. I would not hesitate to use the them again.
    Greg Olsen
  • We did our due diligence on roofers when we needed a complete new 15,000 square foot flat roof. All signs were positive for Watertite and they did not disappoint us, they did a great job. Zack was our main contact and he kept us informed throughout the project and always returned our calls in a timely fashion. Well done Watertite team! Larry Fontaine, president of Fontaine Transport Inc.
    Barb Fontaine
  • The crew from Watertite Roofing did and amazing job. They were professional and friendly and worked hard to get the job done. Quality of work was fantastic. It even cost less than originally quoted and appreciated the honesty. Highly recommend this company.
    J. W.
  • As the VP on the board of directors for our co-op apartment building in Hamilton for only the last 8 years, I was not involved in the initial decision to purchase a replacement solution for our, now, 60 year old building and therefore cannot comment on time lines involved. However, a few years ago, we felt the need to make sure it was working as it should and had a Watertite manager come to do an appropriate inspection, which resulted in his assurance that all was as it should be, which also gave me the opportunity to get a deeper understanding and appreciation of the Duro-Last product installed by Watertite. Though it is ill advised to walk around the roof in spiked track shoes, there is a fair amount of traffic as a result of regular, seasonal maintenance of our 4 roof drains by service personnel and yet the roof still continues to show no sign of aging. There is an apartment across the street of similar size and vintage that seems to almost annually require people to come and re-apply tar paper and heated tar. By contrast our roof has needed absolutely no maintenance in the 10 years since its installation and we still have another five years on our warranty. I understand this material has a number of installations in excess of 30 years. My understanding of the initial advantages of our purchase decision relate to: - the comparative speed and efficiency of installation due to its pre-engineering and construction in the consistency of a factory environment, -the fact the membrane could be installed over top of existing infrastructure without expensive replacement of valuable materials that continued to serve the building, -that it is safely installed without the use of open flame tools and finally, -as opposed to (sun) heat-absorbing tar paper based installations, the Duro-Last is made of a reflective material which contributes directly to the diminished need for air conditioning compensation. I have zero problems recommending the Watertite's Duro-Last roof replacement or for new building installation.
    Brian Patriquin
  • Thank you Ibrahim, We really appreciate your Google rating us five stars. Can you share a few words about your experience please as it would be helpful for fellow Googlers. Thank you kindly from Management and Staff
    Ibrahim Jame Mosque
  • The company is a family business, however they have plenty of other people to take care of your needs. Their estimate is done by Google earth and their representatives are very professional and helpful. The system they represent has an excellent 20 year warranty and provides a beautiful looking end result. Using this product is definitely a money saver when doing a flat tar and gravel roof replacement. I highly recommend them.
  • I had the opportunity to work with Watertite in 2008, they educated me on their product along with the installation process. The job was completed in a diligent and timely manner and the material is a superior technologically advanced product. Most recently, I had an ice issue this past December where Watertite came out to my building to tackle an ice issue. Upon completion, I was shocked to hear from Zak that there was NO charge for the time spent. There are a very few out there that exercise honest ethical business practice.......THANK YOU
    Zappa Zappa
  • 5 Stars for commercial flat roofing in Haldimand and Niagara
    Myron Myslowka

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