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Commercial Flat Roofing Cambridge

Protect your commercial property from water-related damage with our affordable flat roofing services in Cambridge. We have offered cost-effective solutions for business building owners since 1976.

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    Flat Roofing Services for Industrial and Commercial Properties

    Watertite Roofing has been helping Cambridge commercial property managers and owners maximize the useful life of their flat roofs since 1976. Our exceptional services are designed to support your roof’s energy efficiency and long-term performance. That means minimal or no business disruptions associated with failing roofs.

    Whether you are planning a roof replacement or need routine inspections, our team of professional roofers delivers the expert advice and quality craftsmanship needed to keep your roof efficient. You can count on us for the following services:

    • Flat Roof Repair Services
    • Flat Roof Replacement/Installation Services
    • Seasonal Maintenance Services
    • Commercial Skylight Installation & Repair

    Flat Roof Repair Services

    For 50 years, we have been repairing flat and low-sloped roofs in Southern Ontario, and we have noticed that roofs rarely fail at once. Weaknesses begin to appear at the drains, penetrations, and seams. If the initial damage isn’t addressed on time, it can turn into a costly repair.

    For instance, a seemingly minor leak can lead to excess moisture infiltration, leading to mold growth and structural damage. Similarly, ponding water, cracks, blistering membrane, and compromised insulation can lead to emergency shutdowns if not addressed early enough.

    The good news is that our expert team can track down the source of the leak or damage and offer precision repairs to restore your roof’s functionality. We often complete roof repairs within a day (for minor repairs) or a few days (if the repair process is complex). So, talk to us and get a detailed quote that shows the estimated project timeline.

    Flat Roof Replacement Services

    Does your roof continue to leak despite multiple repairs? Have you noticed large sections of water damage? Or is your roofing system nearing the end of its lifespan? These are warning signs that a full roof replacement may now be a smart choice.

    While small repairs can provide short-term relief, they only postpone the inevitable structural damage. Over time, moisture could infiltrate your roof’s deck, soak into the insulation, or damage the drywall. Once that happens, repairs become less effective and more expensive.

    Perhaps you have noticed soft spots, surface blisters, cracks, or open seams on your flat roof. These are signs that the membrane has lost its ability to keep your building watertight. Ignoring them can lead to serious structural damage.

    Water intrusion causes extensive rot, weakens the entire roof structure, and causes mold growth. In many cases, it’s more cost-effective to invest in a new roof than to continue patching an old one. Our team has extensive experience conducting thorough and regular inspections for institutional buildings, industrial facilities, and business buildings.

    We understand the roofing requirements for each building type. That’s why we’re better positioned to help you choose high-quality materials for your roof replacement.

    Why Timely Roof Replacement Matters

    At Watertite Roofing, we take a practical and long-term view of the cost-effectiveness of roof repairs. With nearly five decades of experience in Ontario’s roofing industry, we understand how minor roof issues can develop into large-scale damage if left unchecked.

    Our process starts with a thorough roof inspection. We assess the full condition of your roof and recommend the best course of action. That could mean a lasting repair or a complete roof replacement. When replacement is the right option, we ensure the new flat roof delivers maximum value, longevity, and protection for years to come.

    Extend Your Roof’s Lifespan with Seasonal Maintenance

    Regular maintenance is one of the simplest and most effective ways to extend the life of your building’s flat roof. A well-planned roof maintenance schedule can prevent minor leaks, cracks, and other roofing issues from turning into major problems. It can also help you delay costly roof replacements by several years without compromising the long-lasting performance of your current roof.

    Think of our regular maintenance services as an investment that pays for itself. With consistent care, your building’s roof can last three to five years longer than expected. Instead of spending thousands on emergency repairs or a complete roof replacement, you protect your roof with our exceptional service and keep your building performing as it should.

    At Watertite Roofing, we design preventive maintenance programs tailored to each roof’s age, material, and current condition. Our technicians perform detailed inspections, check seams and flashings, remove debris, and identify weak areas before they cause leaks. Note that routine inspections and repairs strengthen your roof to last longer with minimal maintenance.

    Cambridge’s weather can be unpredictable. That means heavy rain, snow, and freeze-thaw cycles can take a toll on flat roofs. Routine inspections ensure that your system remains watertight and structurally sound throughout the seasons. A minor repair made early can prevent insulation damage, energy loss, and disruptions to business operations.

    Here at Watertite Roofing, we understand that preventive maintenance isn’t just about upkeep. It’s also about your peace of mind. You can focus on running your business, knowing one of Ontario’s roofing specialists is taking care of your property’s roof. Furthermore, when it’s time for replacement, you’ll have an experienced roofing professional to provide insights into your roof’s performance and guide your roof-related decisions.

    How Much Does Commercial Flat Roofing Cost in Cambridge?

    When you request a quote for a commercial or industrial flat roofing project, we encourage you to schedule an on-site assessment. We’ll inspect your roof, determine the necessary repairs or the right replacement approach (complete roof replacement or retrofit). The cost will depend on the following factors:

    Preferred Roofing Materials

    At Watertite Roofing, we recommend and install the best roofing materials for commercial or industrial flat roofs in Cambridge. Our most preferred flat roofing membrane is the Goliath PVC roofing system, manufactured in Cambridge, Ontario.

    The table below shows the estimated costs of the common roofing systems for commercial and industrial properties. Costs are estimates only and may vary.

    Flat Roofing System Estimated cost (per sq. ft.)
    EPDM (rubber) roofing $5 to $16
    TPO roofing $6 to $18
    PVC roofing $6 to $20
    Modified bitumen $7 to $20
    Asphalt & Gravel $10 to $25

    It’s crucial to mention that the quality of roofing materials can make a significant difference in the total cost of flat roofing services. For instance, your industrial facility or warehouse needs premium materials that can withstand exposure to chemicals, UV radiation, and harsh weather conditions.

    Therefore, the cheapest quotation may not always be the best for your project. Work with our experienced team to determine the specific quality of the flat roof that matches your roofing needs, then budget carefully.

    Other Cost Considerations

    Complex flat roof installations and replacements often cost more. A flat roof with many vents and pipes, skylights, or a multiple-level facility costs more than a simple one. This is because each add-on, like skylights, requires customized flashing to ensure a watertight seal. This specialized work requires time, skill, and careful attention to detail to ensure the long-term integrity of your roof.

    Access problems can significantly increase the cost of your project. Hard-to-reach roofs require specific cranes and make material lifting difficult. If our skilled professionals must repair or replace insulation, more labour hours may be necessary. There’s also the extra cost of insulation materials.

    Ready to Protect Your Commercial Building?

    Schedule an on-site assessment to get actionable insights into your roof’s condition. All inspections include a detailed report that shows any issues identified and the recommended repairs or replacement approach. Remember, we aim to maximize the lifespan of your flat roof through cost-effective repairs. Request a free, no-obligation quote today.

    There are certain areas of a flat roof that are more vulnerable to leaks. Roofing protrusions like plumbing stacks, parapet walls, rooftop HVAC units are the most common areas. If you notice any signs of roof leaks, contact our team for a thorough inspection and repair.
    The best time of the year to get your flat roof inspected and repaired is fall. During this period, the weather is temperate. Spring is also an ideal time for flat roof repairs. So, schedule your routine inspections and repairs in spring and fall. Remember, you can call Watertite Roofing for commercial flat roof repairs any time.
    PVC roofing systems are lightweight, flexible, and resistant to chemical-related damage. Our team recommends PVC roofing membranes because they offer exceptional performance in all weather conditions. The best part? They can be recycled.
    Yes. Goliath PVC roofing membranes can be retrofitted and installed over pre-existing roofing. Note that the existing roof structure must be strong enough, compatible with underlayment, and compliant with the local building regulations, and the existing roof assembly must not be laden with water. Our team will inspect your existing roofing system to determine if a retrofit is possible.
    Some of the warning signs you need to replace your flat roof include frequent leaks (despite repairs), water ponding, widespread cracks, membrane shrinkage, extensive rot in the decking, and visibly loose seams.
    TPO and PVC are both single-ply membranes used for flat and low-slope roofs, but they have some key differences.

    • PVC (polyvinyl chloride) is known for its durability, flexibility, and superior resistance to chemicals, grease, and fire. It performs exceptionally well in extreme weather, including heavy rain, snow, and freeze-thaw cycles — making it ideal for Canadian climates.
    • TPO (thermoplastic polyolefin) is a new and increasingly common flat roofing material, but it has less long-term performance data. It is more prone to seam failures in colder climates, and rapid membrane deterioration due to ponding water.

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      What our customers are saying

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      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

      In February this year, we had a serious flooding problem at our house coming from an outside flat roof deck and probable freezing / ice damage. As part of researching our options, we learned that identifying and fixing flat roof issues can be very complicated, expensive and problematic for insurance coverage. While WaterTite Roofing was not involved in the original installation of our flat deck, Zachary came to our house the day after we contacted him and provided us with a detailed assessment of the problem, a solution and the cost. While we ended up using a different roofing company, mostly due to insurance complications, we could not have been more pleased or impressed by the professionalism of Zachary and we make no hesitation in suggesting you consult WaterTite / Zachary if you have an issue with a flat roof.

      Don Davidson

      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

      We hired Watertite Roofing to repair a leaking flat overhang on the front of our house that had been poorly done by another roofing company about 10 years earlier. Rot had set in and owner Zak Keyes had the solution for a permanent fix. Lead hand Jon took over from there and skillfully directed his crew to undo all the damage, working tirelessly in cold weather to give us a house that looks great and the knowledge that the problems are fixed for good. We highly recommend Watertite Roofing for flat roof construction and repair. Leanne and Pierre – Hamilton Ontario

      Leanne Joanisse

      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

      During a heavy rain event, the roof leaked and one of the tenant was concerned about the leak. I called Watertite Roofing and they were on the roof to patch the leak by end of the same day. In the meantime, they did an assessment of the roof and provided a quotation within days for the replacement of the roof. Once the quotation was approved, Watertite Roofing promptly began to replace the roof the following day. The foreman on site for Watertite Roofing was considerate of intrusion to the businesses and their clients. The site foreman was approachable and made changes requested by the landlord. The work was completed in four days and before the next rainfall. Communication with the head office was always pleasant and frequent updates were provided every several days of work progress by the Operations Manager/Estimator. I was pleased with the quick response and the professional manner in which the work was completed ahead of time.

      Silvio Mucciarelli

      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

      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

      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

      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.

      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.

      this team was excellent! they repaired our roof (a former elementary school) and did the work on time and within budget. The crew were friendly, professional and cleaned up all during the project work. We have asked them to quote us a second building and look forward to having this repaired. They are the experts in flat roofs. Great work Watertight!

      Joanna Mataya

      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

      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

      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

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      Protecting a Local McDonald’s: A Flat Roofing Success Story

      When it comes to flat roofing, many people think it’s just about the surface. However, a well-installed flat roof requires a more comprehensive approach – one that considers the entire roof envelope. This includes all the interconnected components that work together to protect the building from the elements, such as weather, moisture, and temperature fluctuations. Recently, we had the opportunity to apply this expertise to a well-known local business – a McDonald’s restaurant.

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