Roof Installations

Metal Roof Retrofits with the Duro-Last Flat and Low-Slope Roof System

Before during, and after a Watertite Metal Roof Retrofit has saved the day.


Watertite Roofing offers low-slope metal roof retrofit services with the Duro-Last roof system, providing an efficient solution to enhance the performance of existing metal roofs. By retrofitting with Duro-Last, Watertite eliminates common issues like leaky seams and roof openings typically associated with metal roofing. Moreover, this system adds significant value by incorporating flute filler insulation, effectively leveling out the roof's corrugations while simultaneously improving the roof's R-Value. In essence, the retrofitting service not only enhances durability and waterproofing but also boosts energy efficiency, ensuring a long-lasting and cost-effective solution for metal roof upgrades.

Get a Free Quote

What our customers are saying

  • Our church (Port Colborne BIC Church Port Colborne Ontario) contracted Watertite Roofing to install new roofing on our flatroof here at the church. We are so very pleased with the job... well done...professional...tidy...exceptional workmanship...thorough...and wonderful to work with from beginning to completion. Five stars for a job well done.
    Brian Lofthouse
  • 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.
    Ulrich
  • 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
  • 5 Stars for commercial flat roofing in Haldimand and Niagara
    Myron Myslowka
  • 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.
  • It's great to see local businesses such as Watertite Roofing - Specialists in Flat Roofing actively participating and helping the local community. Thank-you so much for your support this year at our BMX race track. We all do it for the kids!
    FALLS BMX PARK (Falls BMX Park)
  • I have full confidence in recommending this company to anyone. I have used Watertite on three occasions (three different buildings). They were professional, clean and their pricing was better than the competitors. Completely satisfied with the service and finished product.
    Stephane Marchand
  • 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
  • Zac and his team have been incredible from our first contact. They were the most reasonably priced of 4 quotes, got the job done quickly when they said they would, have promptly responded to any queries and have came back to support installation of ventwork during renovations. The new roof, trim and eaves troughs look great and we're very happy with the service.
    Amanda Harry
  • After doing a lot of research on possible solutions for renewing an existing 35yr old low pitch corrugated metal roof on a pre-eng industrial building; a membrane overlay system was chosen as the most effective from a performance, cost and warranty standpoint. After engaging 3 local firms for proposals, it quickly became apparent that Watertite was by far the best solution to meet our needs. Their rep (Zak) was very easy to work with, maintained great communications, and was very professional/responsive to any questions or communications I had. Through the whole process (survey, quotation, project coordination/execution, and wrap-up), Watertite and their personnel were top notch with little inconvenience to the tenant. Definitely would not hesitate to highly recommend Watertite and the Duro-last membrane system.
    Dave Allan
  • The Optimist Club of Dunnville has worked with Watertite over the years. Recently, we contracted them to install a Duro-Last overlay roof system on the flat roof over our kitchen and back storage area. We were very pleased with the job. They noted a minor concern on a roof on which they were not working and repaired it at no extra charge. The team from - the quote, to the installation, to the office payment was friendly and professional. Installation of this durable, well-warrantied roofing allows us to focus our time and energy on our mission with the youth rather than worrying about leaking roof. Kudos to the Watertite team!
    Brenda Zynomirski
  • 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
  • We have used Watertite Roofing on several occasions and have been extremely happy with their service. They have come to our rescue many, many times always swiftly and professionally. It's incredibly hard finding a great roofing company. I'm pleased to say that we've found them and look forward to doing business with them for many years to come.
    Melissa Turner
  • Always a pleasure working with Waterside Roofing from Dunnville, Ontario. Watertite is very professional at their workmanship and I will continue to have them complete multiple jobs in the future.
    Rodney Hipwell
  • We purchased a building requiring a new flatroof. Didn't take to long to figure out who I was going to work with. Thru multiple business owners in the area and talking with some friends in real estate, the same name kept coming up. I gave Zach, owner, a call and booked a time to take a peak. He arrived ontime, prepared and presentable. He knew his product well and came up onto the roof to explain the process. After measurement and finalizing the details we decided to proceed with a roof replacement. A quotation was sent back within 2 days with pictures of the existing roof, new roof design and the payment schedule from start to completion. His crew that did the roof were very respectable of my property. There was no garbage left behind and the end product turned out great. Clearly, I'd be happy to do business with Watertite again. I could have done the contract on a handshake. Zacks words were few but what got promised happened and his communication was clear. I would have zero reservations in passing their name forward. Thanks for helping me out. Great company.
    Drew Williams

Write a review