Roofing Services

When it comes to protecting your home from the top down, choosing the right roofer makes all the difference. At Ontario Downspout Service, we provide trusted, high-quality roofing services in Toronto and throughout the GTA, helping homeowners get long-lasting results with every roofing project we take on. Whether you’re dealing with leaks, aging shingles, or storm damage, our team brings years of experience in residential roofing to every job.

We understand that a new roof isn’t just about function — it’s also about curb appeal and peace of mind. That’s why we focus on precision workmanship, durable materials, and solutions that are tailored to your home’s needs. Whether you’re planning a full roof replacement or need a few critical repairs, you can count on our team to deliver honest advice and expert service from start to finish.

Roofing Installation Toronto

Roof Installation & Replacement

Whether your current roof is past its prime or showing signs of serious wear, a complete roof replacement can restore your home’s protection, energy efficiency, and curb appeal. At Ontario Downspout Service, we specialize in roof installation and replacement for homeowners across Toronto and the GTA, offering expert workmanship and premium roofing materials that are built to last.

If you’re starting to see missing shingles, leaks, or sagging areas, it may be time to replace your roof. We’ll assess the condition of your current system and walk you through your options — whether it’s a full new roof installation or upgrading to more durable materials. From the tear-off to the final shingle, we handle every detail with care, making sure your new roof looks great and performs even better. Our goal is to give you a smooth, stress-free experience and a roof that stands up to Ontario’s changing seasons.

Roof Repairs

A leaky roof or missing shingles might seem like a minor issue, but if left untreated, it can lead to major structural damage and costly repairs. At Ontario Downspout Service, we offer fast, reliable roof repair in Toronto and the GTA — from small patches to larger structural fixes. Whether it’s a sudden leak after a storm or long-term wear catching up to your roof, our team is ready to respond with the right solution.

We provide both scheduled and emergency roof repair services, ensuring your home stays protected no matter the season. Our experienced crew will inspect the damage, identify the source of the problem, and carry out effective roof repair services using high-quality materials that match your existing system. We focus on fixing the issue properly the first time — so you can get back to feeling safe and dry under your own roof.

Eavestrough & Downspout 3

Roof Inspections

Catching small issues before they turn into costly repairs starts with a thorough roof inspection. At Ontario Downspout Service, we offer detailed inspections that help homeowners spot early signs of roofing problems — from minor wear and tear to hidden leaks. If you’re unsure about the condition of your roof or just want peace of mind, regular roof inspections are a smart way to stay ahead of unexpected damage.

As an experienced roofer in Toronto, we know what to look for in every season — from wind-lifted shingles to flashing failures and ventilation concerns. Our team will assess your roof’s overall condition, identify any areas of concern, and offer honest recommendations on next steps. Whether you’re preparing to buy or sell a home, or just want to extend the life of your current roof, a professional inspection is a solid first move.

Roof Maintenance

Regular upkeep is the key to extending the life of your roof and avoiding expensive surprises. At Ontario Downspout Service, we offer a roof maintenance program designed for homeowners in Toronto and the GTA who want to protect their investment and keep their roof performing at its best. Whether your roof is brand new or a few years old, staying on top of maintenance helps prevent leaks, damage, and early deterioration.

Our team provides professional roofing services that go beyond a basic check-up. We inspect for early signs of wear, clean out debris, secure loose materials, and ensure your entire roofing system — including flashing and eavestroughs — is in top condition. With scheduled maintenance, you’ll have peace of mind knowing your home is protected year-round, and small issues can be addressed before they turn into big problems.

Roofing Installation 2
Flat Roofing Installation Toronto

Flat Roofing

Flat roofs require specialized care and installation techniques to perform well and stand up to our local climate. At Ontario Downspout Service, our team of flat roof experts provides reliable solutions for both residential and small-scale commercial properties throughout Toronto and the GTA. Whether you’re installing a new roofing system or dealing with damage from water pooling or weather exposure, we bring the experience needed to get the job done right.

If you’re seeing signs of leaks, blistering, or drainage issues, we offer prompt and effective flat roof repair in Toronto. Our flat roofing services are tailored to your structure, using durable materials and proven methods that maximize lifespan and minimize future maintenance. We assess the condition of your current system and recommend solutions that keep your flat roof sealed, functional, and worry-free.

Shingle Roofs

At Ontario Downspout Service, we specialize in asphalt fibreglass shingles — the most popular and trusted roofing material for homes across Toronto and the GTA. Known for their durability, weather resistance, and visual appeal, these shingles offer reliable protection and a range of design choices to complement any home.

We proudly offer two premium asphalt fibreglass shingle options:

1) Architectural Shingle
Also known as dimensional shingles, architectural shingles are thicker and more textured than traditional 3-tab shingles. Their multi-layered design adds visual depth and enhances curb appeal while offering improved wind and weather resistance. These shingles are a popular choice for homeowners seeking a strong balance of performance and style.

2) Designer Shingle
For those looking to make a bold architectural statement, designer shingles offer a wide variety of profiles, colours, and finishes that replicate the look of slate, wood shake, or other premium roofing materials — all with the reliability of asphalt fibreglass construction.

Our experienced team will help you select the right option to match your home’s aesthetic and your long-term roofing goals.

Shingle Roofing Installation Toronto
steel roof with wood siding building

Metal Roofs

If you’re looking for a long-lasting, low-maintenance solution that looks as good as it performs, metal roofing is a smart investment. As a trusted metal roofing contractor serving Toronto and the GTA, Ontario Downspout Service installs durable metal roof systems that are built to withstand harsh weather, resist corrosion, and protect your home for decades.

Metal roofs are no longer just for barns or industrial buildings — today’s systems offer modern styling that works beautifully with a wide range of architectural designs. Available in various finishes, profiles, and colours, metal roofing is a great way to upgrade your roof while improving energy efficiency and reducing long-term maintenance. Whether you’re building new or replacing an aging roof, metal gives you a sleek, durable, and sustainable option with serious curb appeal.

Slate Roofs

Slate roofing is one of the most timeless and elegant choices for high-end homes, offering unmatched durability and natural beauty. While it’s more of an investment upfront, a properly installed slate roof can last over 100 years, making it ideal for homeowners looking for long-term value and low maintenance. It’s naturally fire-resistant, weatherproof, and adds a distinct architectural look that never goes out of style.

This roofing material is best suited for solid roof structures that can support the weight of natural stone. If you’re considering a slate roof for your home in Toronto or the GTA, our experienced team will guide you through the material selection, installation process, and any structural considerations to ensure a flawless, lasting result.

slate roofing toronto
synthetic slate roof toronto

Synthetic/Composite Slate Roofs

Synthetic slate roofing — also known as composite slate — offers the classic look of natural slate without the weight or high cost. Made from a combination of polymers, rubber, and other engineered materials, synthetic slate is a lightweight and affordable alternative that’s still incredibly durable and weather-resistant.

This is a great option for homeowners who want the appearance of slate with easier installation and less structural reinforcement. It’s also impact-resistant and available in a range of colours and profiles, offering design flexibility and long-term performance. Our Toronto roofing specialists can help you determine if composite slate is the right fit for your roofing project.

Cedar Roof

Cedar roofing is prized for its natural beauty and rustic charm, often seen on heritage homes and cottages. In addition to its rich, timeless look, cedar also offers strong performance — it’s naturally resistant to moisture, insects, and UV damage. With proper maintenance, a cedar roof can last 30 to 40 years, and even longer in the right conditions.

This roofing style works especially well on homes with character or architectural detail, and it ages beautifully over time, developing a soft silver-grey patina. For homeowners in Toronto looking for both aesthetic appeal and natural performance, cedar is a standout choice. Our team provides expert installation to ensure the shingles are properly spaced and ventilated for maximum longevity.

cedra roof shingles
cedar roof shingles composit

Synthetic/Composite Cedar Roofs

Synthetic cedar roofing gives you the classic appearance of real cedar shakes with the added benefit of enhanced durability and less maintenance. These products are designed to replicate the texture and tone of wood while being resistant to rot, mold, insects, and fire — perfect for the demands of Toronto’s variable climate.

Made from advanced materials like polymer blends or recycled components, synthetic cedar offers a sustainable, long-lasting alternative to traditional wood. It’s ideal for homeowners who want the warm, natural look of cedar without the upkeep. As experienced installers in the GTA, we’ll help you choose a composite option that matches your vision and holds up beautifully over time.

Full-Service Roofing Company in Toronto

At Ontario Downspout Service, we’re more than just a Toronto roofing company — we’re a trusted partner for homeowners across the Greater Toronto Area looking for reliable, long-term solutions. From minor repairs to full roof replacements, we offer a complete range of residential roofing services backed by skilled craftsmanship and personalized care.

Our team understands that every home is different, which is why we tailor our professional roofing approach to meet your unique needs. Whether you’re dealing with an emergency leak, planning a new build, or simply want to upgrade your existing system, we’ve got your roofing needs covered from start to finish. With over a decade of experience in the GTA, we’re committed to delivering durable results that give you peace of mind and lasting protection.

new roof on Toronto home

FAQ

There are several warning signs that it’s time for a roof replacement. These include:

  • Missing or curled shingles

  • Granule loss or bald spots

  • Frequent leaks or water stains inside the home

  • Sagging rooflines

  • Moss or algae growth

  • An aging roof (15+ years for asphalt shingles)

If you notice any of these issues, it’s best to have a professional roofer in Toronto perform a detailed roof inspection. They can determine whether repairs will suffice or if it’s time for a full roofing project. Replacing your roof at the right time helps you avoid more serious damage and adds long-term value to your home.

The most expensive part of a new roof is typically the labor and installation costs, especially when removing the old roofing system is required. Factors like roof size, pitch, complexity, and material choice also impact the overall cost. While premium roofing materials like metal or architectural shingles can raise the price, the installation process often represents a large portion of the expense due to the precision, safety measures, and expertise involved. Working with a professional Toronto roofing company ensures that this investment is done properly and built to last.

Yes, even a small roof leak can lead to significant water damage if left unaddressed. Leaks often start silently, seeping into your attic insulation, ceiling, and walls before visible signs appear. Over time, this moisture can cause mold growth, rot, warped wood, and electrical issues — not to mention costly repairs. That’s why it’s so important to schedule prompt roof repair in Toronto at the first sign of trouble. A quick fix today can save you thousands in interior restoration work down the line.

In Toronto’s climate, the average roof lifespan depends heavily on the materials used and how well the system is maintained. Asphalt shingle roofs typically last 15–25 years, while metal roofing systems can last 40 years or more. Factors like heavy snow, ice buildup, and temperature fluctuations can shorten a roof’s life if not addressed through regular inspections and maintenance. A well-installed and properly cared-for roof can often exceed its expected lifespan, which is why many homeowners in the Greater Toronto Area invest in a roof maintenance program.

The ideal time to replace your roof in Toronto is during the late spring through early fall. Temperatures are more consistent, the weather is generally dry, and roofing materials perform better during installation when it’s not too cold or humid. Summer and early autumn are especially popular times for roof replacement because they offer optimal conditions for shingles to seal properly and crews to work efficiently. However, experienced roofers in Toronto can still complete safe and effective installations outside of peak months if weather conditions allow.

A Family-Run Company

A family owned and operated boutique exterior contractor that has been servicing the GTA for decades. We specialize in the inspection, repair & replacement of: Eavestrough, Soffit & Fascia, Siding & Roofing.

10/10

HomeStars Customer Rating

Ten Times

Best of HomeStars Winner

10,000+

Job Completed In The GTA

What Our Customers Say

  • James Dean

    It was an absolute pleasure dealing with Mark from start to finish. He replaced our roof, soffit, fascia, eaves and all of the rotted wood. He also installed beautiful copper detailing around our front porch. We wouldn’t hesitate to recommend Mark, he truly goes the extra mile for you.

  • Janette MacAvoy

    We received several quotes before deciding to go with Ontario Downspout Service. What stood out to us was Mark’s customer service, attention to detail and transparency. Mark replaced our roof, soffit, fascia and eavestroughs in a timely manner and left the work site spotless.

Ontario Downspout Service
Best of Awards 2025 - Winner 10 Times!
Excellent Service
10/10
Our Eavestroughs were 30 yrs old and needed to be replaced. A neighbour replaced theirs and we were impressed with the results. We contacted Mark and he came to our home on the weekend to fit our schedule We agreed on the contract and today his employees came at 7:30 AM to start the work. They finished this afternoon and my wife and I are very Pleased with the...
Toronto
Great job replacing roof and eavestroughs
10/10
Terrific service, from first call to last exchange. Good quote, with smart rationale for bigger eavestroughs. Good follow up. Was impressed with the speed of response and speed of job completion. A great company with great service. You won't go wrong with them.
Mississauga
New Roof!
10/10
I wasn't sure what needed to be done with my father's roof and the most important thing to me was finding someone I could trust. The roofing scene can be tricky to navigate. I've had bad luck in the past. Ontario Downspout Services had been recommended by a neighbour. Harvey answered the phone and he was a calming and thoughtful soul who started the whole...
Toronto
Flat roof and eaves
10/10
Mark and his crew did a great job replacing the flat roof on my house and dealing with a leak I had into my living room by replacing a strip of roof and eaves trough along a side of my house in an awkward narrow area between my house and my neighbours. Mark shared photos as they removed the old materials so I could see the problem areas and understand how the...
Toronto
Eavestrough and downspout replacement
10/10
For years our roof was not draining properly. I called Ontario Downspout and got professional advice - first over the phone (using Google Earth to look at the house online), then an in-person inspection. Mark was very helpful in explaining what was need to fix the problem, then scheduling the work at a time convenient for me. The installation was efficient and professional...
Toronto
Eaves Replacement
10/10
This is my second time using Ontario Downspout! Mark and his guys are awesome fitting us in and providing awesome service. We added extra downspouts and replaced the failing system. Mark is fair and a pleasure to deal with. His crew left my property cleaner than they found it which is rare these days! Would recommend anyone looking for quality services to use Mark and...
Toronto
Eaves, soffits, and siding done to PERFECTION
10/10
After comparing a few quotes, I went with Mark and Ontario Downspout. His initial assessment was incredibly thorough and left me confident in my choice. A few weeks later, his crew arrived to tackle the job over the course of a weekend. They did fresh eaves, soffits, and did a great job freshening up the back exterior of my house -- changing old, rotting wood into fresh...
Toronto
Flat roof and siding replacement
10/10
I found Ontario Downspout Service on Homestar and I am so glad I did! I initially got Mark to give me an estimate to replace one of the downspouts on my roof that became detached. He was the only one that gave me a quote right away and came over very quickly to fix it. While on the roof, we got talking and he inspected my roof and gave me an estimate. The work was...
Toronto

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