Residential Roofing Frequently asked questions

The decision hinges on a combination of factors: the age of your roof, the extent of the damage, and the quality of the original installation. Asphalt shingle roofs in Toronto typically last 20–30 years under normal conditions. If your roof is under 15 years old and damage is isolated — a few missing shingles, a flashing issue — a targeted roof repair is almost always more cost-effective. However, if shingles are curling or cupping across large areas, granule loss is extensive, or your attic shows widespread moisture, a full roof replacement is likely the smarter long-term investment. Our team offers complimentary residential roof inspections to help you make an informed decision without any sales pressure.

Toronto homeowners should watch for these warning signs: granules accumulating in gutters (indicates aging shingles), daylight visible through attic boards, sagging deck sections, water stains on ceilings or walls, moss or algae growth, cracked or missing shingles, and damaged or rusted flashing around chimneys, vents, and skylights. If you spot any of these, schedule a professional inspection promptly — early intervention prevents costly structural damage.

Toronto's freeze-thaw cycles, heavy snowfall, and summer heat waves demand high-performance shingles. We recommend architectural (laminated) asphalt shingles from our certified suppliers — BP, CertainTeed, GAF, and IKO — as a baseline. These outperform standard three-tab shingles (which have been discontinued in many areas) in impact resistance and longevity. For premium protection, impact-resistant shingles rated Class 4 are worth the investment as they can qualify for insurance premium reductions. If aesthetics and longevity are your top priorities, consider cedar shake, synthetic slate, or natural slate. Visit our residential shingles page to explore your options and see our full product range.

The majority of standard residential roof replacements in Toronto are completed within one to three days. Factors that affect timelines include roof size and pitch, the number of layers being removed, weather conditions (we don't install in rain or temperatures below freezing), and the complexity of features like multiple valleys, dormers, skylights, or flat roof structures.  Even soffit and eavestrough replacements have access and complexity issues that can be 1 to 5 days.  Our team will provide a realistic timeline during your free estimate. We pride ourselves on completing projects on schedule — a standard we've upheld for over 100 years.

Yes. We understand that a roof replacement is a significant investment. That's why Dominion Roofing offers flexible financing options to help spread the cost into manageable payments. Whether you're replacing an aging asphalt shingle or flat roof, eavestrough or investing in a premium cedar or slate system, our financing solutions are designed to make quality roofing accessible without compromising the materials or workmanship. Contact us or visit our financing page to learn about current terms and eligibility.

Dominion Roofing offers one of the best warranties in the roofing industry, for both materials and labour. Because we are certified installers for BP, CertainTeed, IKO, Gentek and Kaycan, your new roof qualifies for the manufacturer's product warranty in addition to our own labour warranty. This layered protection gives you genuine peace of mind.  As this industry has a reputation, so many people are afraid roofing companies won't fulfill their warranty if something were to happen!!  But being in business for over 100 years, we have proven to back our warranties! Our loyal customers come back to redo their roofs, life cycle after life cycle! Full warranty details — including coverage periods and what's included — are available on our warranty page.

Residential flat roofing is common on modern homes, subdivision houses, and additions in Toronto. Unlike sloped roofs, flat roofs require specialized waterproofing systems — typically    2 ply modified bitumen, Self Adhesive or EPDM membranes — because they cannot rely on gravity to shed water. A well-installed flat roof is highly durable and can double as usable rooftop space. However, flat roofs do require more frequent inspections to ensure drains and scuppers remain clear. Dominion Roofing specializes in both flat roof installation and ongoing maintenance to keep these systems performing year-round.

Specialty roofing materials each offer distinct advantages. Cedar shake provides natural insulation, excellent curb appeal, and can last 30–40 years with proper maintenance. Natural slate is exceptionally durable — lasting 75–100+ years — fire-resistant, and adds significant property value. There are synthetic products that mimic the look of cedar and slate and have become very popular due to price point.  Copper is virtually maintenance-free, develops a beautiful patina over time, and is ideal for accent areas, dormers, and bays. All superior materials command a premium price but offer exceptional aesthetic look and curb appeal with long-term value. Our experienced team has the craftsmanship required to install and repair these materials correctly.

Our Roof Tune-Up program is a proactive maintenance service designed to extend the life of your roof between full replacements. It includes a comprehensive visual inspection, replacement of any worn or damaged shingles, resealing around skylights, chimneys, vents, and pipe flashings, and a check to ensure your eavestroughs and downpipes are free-flowing and properly secured. Catching small issues early — before they turn into interior water damage — is one of the smartest investments a homeowner can make. We recommend scheduling your tune-up every spring or fall.

Absolutely. Our team handles everything from resealing and flashing repairs on existing skylights to full skylight replacements and new installations. We offer energy-efficient VELUX skylight systems, including models with manual or automatic blinds for light control and privacy. Skylights that are improperly installed or maintained are a leading cause of residential roof leaks — so if yours is aging or leaking, don't ignore it. We'll assess the issue and recommend the most cost-effective solution.

Your eavestroughs and downpipes are your roof's water management system. When they are clogged, sagging, or improperly pitched, water backs up along the fascia, seeps under shingles, and can cause significant rot, mold, and ice dams in winter. In Toronto, spring debris and fall leaves are the primary culprits. We recommend cleaning and inspecting your gutters at least twice a year. Dominion offers eavestrough repairs, replacement, and guard installation as part of our full exterior service offering.

Yes. Our residential exterior services extend beyond the roof itself. We install and repair siding, soffit, and fascia using premium Kaycan, Gentek and Royal Building Solutions materials. Damaged or deteriorating soffit and fascia are often indicators of roof-edge water intrusion — issues we identify and resolve together, rather than treating them as isolated problems. This holistic approach is one of the key reasons homeowners across the GTA trust Dominion for their entire exterior.

Yes. Dominion Roofing works directly with home builders and developers on new residential construction projects across the GTA — including large subdivision developments and low-rise infill builds. Our track record of completing roofing on time and on budget has made us a trusted partner for builders who can't afford delays. If you're a builder or developer, contact us to discuss how we can support your project pipeline.

Ice dams form when heat escaping from a poorly insulated attic warms the roof deck, causing snow to melt and refreeze at the colder eaves. The resulting ice buildup forces meltwater back under shingles and into your home. Prevention involves addressing the root cause: proper attic insulation and ventilation. During a roof inspection, our team assesses your attic ventilation and can recommend solutions. We also install ice-and-water shield membrane during roof replacements to provide an extra barrier against ice dam infiltration at vulnerable dormer,  eave or valley zones.

The most accurate quotes come from an in-person inspection. Online calculators can give rough ballparks, but they can't account for your roof's actual condition, slope complexity, number of penetrations, and the exact materials required. Dominion Roofing offers complimentary on-site estimates — simply book an appointment and one of our experienced estimators will assess your roof and provide a detailed written quote. We're transparent about what's included and why, so you're never left guessing.

Dominion Roofing proudly serves homeowners across the entire Greater Toronto Area. Our service areas include Toronto, Brampton, Burlington, Etobicoke, Markham, Mississauga, North York, Oakville, Richmond Hill, Scarborough, Vaughan, York Region, and Waterloo Region. If you're unsure whether we cover your specific postal code, contact us and we'll confirm right away.

Dominion Roofing offers 24/7 support — you can reach us any time at 416-789-0601. If you discover a leak, take immediate steps to limit interior damage: place buckets, move furniture, and if safe to do so, apply a temporary tarp. Do not attempt to walk on a wet or icy roof. Our roof repair team will assess the situation and carry out a safe, proper repair as quickly as conditions allow.

Always verify that any roofing contractor you consider is fully licensed and insured in Ontario, has verifiable reviews, and can provide references. Ask whether they are a certified installer for the materials they're proposing — this affects your warranty coverage. Avoid any contractor demanding large upfront cash payments or offering deals that seem too good to be true. Dominion Roofing is proud to be a BILD Sub-Contractor of the Year award winner and has been recognized for excellence in workmanship and customer service. Read our customer reviews — our century-long track record speaks for itself.  

Absolutely. Our portfolio and customer projects pages showcase a wide range of completed residential and commercial roofing work across the GTA — from shingle replacements in North York to cedar shake restorations in Oakville and flat roof overhauls in Etobicoke. Reviewing actual completed projects is one of the best ways to gauge a contractor's quality and attention to detail. We're proud of every project in our gallery and happy to answer questions about any of them.

Three things stand out consistently in our customers' feedback: trust, transparency, and longevity. With over 100 years in business, Dominion is not a fly-by-night operator — we'll be here to honour warranties, answer questions, and service your roof for decades to come. We are certified installers, award winners, and carry comprehensive insurance. Our team includes tradespeople who have been with us for over 40 years — that institutional knowledge is irreplaceable. Read our Why Choose Us page and our customer reviews to hear directly from homeowners we've served.