Roof Replacement
When it’s time for a full roof replacement, homeowners across Toronto and the GTA trust Ontario Downspout Service to deliver expert results with a personal touch. As a local, family-owned Toronto roofing company, we understand the challenges our climate presents — from harsh winters to heavy rains — and we make sure your new roof is built to withstand it all. Whether you’re dealing with old, worn shingles or frequent leaks, we provide reliable solutions that restore both the function and appearance of your home.
Our team takes the time to inspect your current roofing system thoroughly, recommending the best materials and methods for your full roof replacement. We focus on craftsmanship and attention to detail, so you can feel confident that your new roof will protect your home for years to come. Serving Toronto and the GTA since 2010, Ontario Downspout Service is here to make the process smooth and stress-free, keeping you informed every step of the way.

Residential Roof Replacement
At Ontario Downspout Service, we specialize in complete roof replacement for homeowners throughout Toronto and the surrounding area. We know that your roof is one of the most important elements protecting your home, and when it starts showing signs of serious wear — like missing shingles, persistent leaks, or visible sagging — it’s time to consider professional residential roofing services. Our experienced team is here to guide you through the process, from initial inspection to final installation.
Every home is different, and we take the time to understand your needs and recommend the right roofing solutions for your property. Whether you’re looking to improve curb appeal, enhance energy efficiency, or ensure long-lasting protection, our complete roof replacement services are designed to deliver lasting results. Homeowners in Toronto trust our meticulous workmanship and commitment to quality, knowing their investment is in capable hands.
Roof Replacement vs Reroofing
When it comes to updating your roof, many homeowners wonder whether they need a full roof replacement or if reroofing is a better option. While reroofing—installing new shingles over existing materials—may appear more cost-effective initially, this approach creates significant long-term problems that we believe outweigh any short-term savings. Going over existing shingles prevents proper inspection of the roof deck, traps moisture that can lead to rot and mold, adds excessive weight to your home’s structure, and creates an uneven surface that compromises the new shingles’ performance and longevity.
Most importantly, shingle manufacturers will not provide warranty coverage for materials installed over existing shingles, leaving homeowners without protection for their investment. This lack of warranty coverage alone often eliminates any initial cost savings when problems inevitably arise.
At Ontario Downspout Service, we exclusively offer complete roof replacement, which means removing all old roofing materials and addressing any structural issues before installing a brand-new system. This approach ensures long-term durability, allows for proper ventilation and insulation upgrades, and comes with full manufacturer warranties that protect your investment. While the upfront cost is higher than reroofing, complete replacement provides superior value, performance, and peace of mind for Toronto homeowners facing our challenging climate conditions.


Flat Roof Replacement
Flat roofing systems require specialized knowledge, and at Ontario Downspout Service, we provide expert flat roofing solutions for residential properties across Toronto and the GTA. Whether your existing flat roof is starting to show signs of aging, or you’re dealing with persistent leaks, a professional flat roof replacement can restore the integrity and performance of your home. We handle everything from tear-off to new flat roof installation with precision and care, ensuring a durable finish that stands up to Toronto’s weather.
Flat roofs need proper drainage and sealing to prevent future issues. Our team carefully assesses your roofing system and recommends materials and techniques designed to extend its lifespan. We understand the unique challenges of residential flat roofs and deliver expert flat roofing craftsmanship that keeps your home protected. If you’re noticing signs like ponding water, cracks, or frequent leaks, it may be time to explore a new flat roof installation to safeguard your investment.
We Install a Variety of Roof Types
Every home is unique, and at Ontario Downspout Service, we offer a range of roofing options to suit your style, budget, and needs. Whether you’re replacing an aging roof or upgrading to a more durable material, our team provides expert installation for a variety of roofing systems designed to protect your home for years to come. We work closely with Toronto homeowners to help them choose the best roofing solution for their property.
We install:
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Shingle roofs — A classic choice for many residential homes, offering affordability, versatility, and a wide range of colours and styles.
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Metal roofs — Known for their exceptional durability, energy efficiency, and low maintenance requirements, ideal for long-term protection.
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Slate roofs — A premium option that offers unmatched longevity and timeless elegance, perfect for homeowners looking for both beauty and strength.
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Cedar roofs — Natural and visually striking, cedar roofs provide excellent insulation and a distinctive appearance that enhances curb appeal.
No matter which roofing system you choose, you can count on Ontario Downspout Service for expert installation and attention to detail.


Your Trusted Roof Replacement Company in Toronto
Your roof is the first line of defense against the elements, which is why choosing the right roofing contractor is so important. At Ontario Downspout Service, we’ve been helping homeowners throughout the Greater Toronto Area protect their homes with expert roof replacement in Toronto since 2010. As a family-owned business, we take pride in delivering quality craftsmanship and personalized service that larger companies simply can’t match.
Whether you’re dealing with storm damage, aging materials, or leaks, you need a roofer who understands the local climate and can recommend the right solution for your home. Our experienced team handles every aspect of your project, from inspection to installation, using high-quality materials built to last. Homeowners across the Greater Toronto Area trust Ontario Downspout Service as their go-to roofing contractor for reliable, professional service on every job.