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Re-Roofing Services Toronto

Your roof is your greatest asset and the first line of defense against the elements. When it comes time to replace your roof, Dominion Roofing should be the first roofing contractor you call.

For over 95 years, Dominion Roofing has reigned as Canada’s roofing authority. Instrumental in the development of new roofing materials, technologies, applications and practices, Dominion is looked upon as a pioneer in the field. Regarded for our no-nonsense approach to safety, of which Dominion set the standard for the industry, quality of workmanship, and the best warranty in the business, Dominion has earned the title of the number one go-to roofing contractor.  

From Niagara Falls to Pickering, Barrie to downtown Toronto, Dominion has re-roofed over 2 million homes. Our prompt, friendly and professional re-roofing service is backed by our status as a “fully licensed, insured and bonded” re-roofer, and allows us to ensure every Dominion Roofing customer is a satisfied customer.

Whether you’re inquiring about a residential or commercial property, shingles or flat roofs, custom builds, cedar, slate, metal or copper materials, Dominion Roofing has you covered!


  • Expert product knowledge to help you choose the right solution for your property
  • Familiarity with all types of roofing systems
  • Staff with over 1,000 years’ experience, both on the roof and in the field
  • Accredited and certified installers
  • Adherence to all manufacture specifications
  • Customized metal, aluminum and trim to fit your property’s contours
  • A labour warranty unmatched in the industry

Looking for professional Roofing Contractors? Give us A call.



    Many roofing companies will answer “yes” to this question the second it is posed. Their goal is to sell you a new roof, whether you need one or not. At Dominion, we aim for a different approach – working closely with our customers to provide the best possible solutions based on their unique circumstances. Step one in determining whether or not a roof requires replacement is to have one of Dominion’s re-roofing experts come out and assess the property. If the roof needs to be replaced, we’ll tell you. But sometimes a partial replacement or a more extensive repair to bring the roof back up to standard is all that’s needed. Replacing your roof is a big decision; one that requires you to be equipped with all the information and options available for your property.

    There are always conditions that can shorten the life expectancy of the roof, such as its exposure to the elements, consistent deficiencies, and the functionality of the other components that make up the roofing system. If you’re concerned about the state of your roof or just want to ensure everything is performing as it should, call Dominion today and schedule a Roof Tune-Up® . If your roof has been problem free and is approaching the 15-20-year mark, it’s not uncommon to have it replaced regardless simply because materials, application techniques, building codes, warranties and technologies have evolved tremendously over the last two decades.

    Problems with Flat Roofing Leaking? Check here.


    Can you reroof over existing shingles?

    Yes! It’s possible to lay new roof shingles over old ones and avoid the cost of tearing off the shingles. However, this can only be possible if the shingles are asphalt shingles (composition shingles) but not with wood or slate shingles. Installing a new roof over existing shingles has several perks including its less expensive, serves as an added protection in times of storms and also enhances durability. Nonetheless, care must be taken to install the roof correctly so that it can last longer.

    Can a roof be repaired instead of replaced?

    There are circumstances that necessitate a roof to be repaired instead of being replaced. Repairing your roof instead of having it replaced does not only save you money but also enables you to conserve the environment by preventing old shingles from being dumped in landfills. If your roof is damaged but most of its is in good shape, you can repair it. However, if your roof is past 20 years and is looking in bad shape, replacing it may be the best option.

    What is the board at the bottom of siding called?

    It’s called a backerboard. They are installed at the bottom of the siding in between the studs and the siding or over the wall surface and function to provide an even nailable surface for installing the vinyl siding.

    What does it cost to redo a roof?

    The cost of redoing a roof is usually dependent on several factors including the type of roofing material or the size of the house. On an average, it costs about $1.20 to $ 4 a square foot to remove and replace the roof or $1, 700 to $8, 400 for a typical 1, 700-2, 100 square foot home. A square foot of a wood shingle roof is between $6.37 and $8.77. A 1, 200-square-foot house asphalt roof costs between $4, 100 and $6, 000 to replace. You should expect to may more for labor if your roof is high, sloppy and difficult to access.

    When should you redo your roof?

    The recommended replacement schedule for replacing your roof is dependent on the type of material used on the roof. The recommended period are: Composition Shingles: 12-20 years, Asphalt Shingles: 15-30 years, Wood Shingles: 20-25 years, Rubber Roofs: 30-50 years and metal roofs: 20-25 years. You should however consult a roofing contractor to conduct a roof inspection every year to determine whether it’s necessary to conduct replacement.

    What happens if you don’t replace your roof?

    Failing to replace your roof when necessary or delaying repair has both short term and long-term effects. Short term effects include increase in the damage, water leaks and increase in the utility damage due to interior damage. Long term effects include structural damage and collapse, health risk and decrease in the value of your property. You should therefore replace your roof immediately when replacement is the relevant option.

    How often do you have to redo a roof?

    The frequency of redoing a roof would depend on when it’s installed and the material used. For example, the lifespan of a typical asphalt shingle roof is usually 20-25 years. On the other hand, if a roof is installed over an existing layer of shingles, it should be replaced after 20 years.

    Is re-roofing a good idea?

    If your roof is nearing the end of its lifespan and is still in good shape, it would be a good idea if you reroof it. On the other hand, it’s not the case if there are some minor issues or leaks.

    Is it better to tear off old shingles?

    Yes, it’s better to tear off old shingles when installing new ones, especially if the former is a curling or in bad shape. On the other hand, if the old shingles are excellent, then it would also be practical if the new shingle roof lay flat on your old one.

    Only one section of my roof is damaged — do I need to re-roof everything?

    When a portion of your roof is damaged, it can be tempting to just replace that damaged portion to save yourself money and time. However, most professional roofing contractors do not recommend replacing only a portion of your roof. Provided you have just one layer of shingles on your roof, you are a candidate for re-roofing.

    Does climate change affect re-roofing practices?

    Climate change increases the risks associated with the overall construction project cycle, including roofing practices. Climate change can affect construction sector directly through weather and climate, but can also make indirect impacts such as site programming, delay, extra expense, laborers safety, material cost, and delivery. Exposure to increased temperature can also result in reduced vigilance and increased risk of injury or lapses in safety.

    Which time of the year is it best to re-roof my home?

    For most areas in Canada, spring is the best time of year to get your roof replaced because winter can be too cold, summer can be too hot, and fall can be too busy.

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