Licensed & Insured. Award Winning. Drainage Experts.

Ontario Downspout Service is a licensed and insured father and son company that never subcontracts our work.

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

Seven Times

Best of HomeStars Winner

10,000+

Job Completed In The GTA

Our Services

  • Eavestrough & Downspout

    We primarily install 6’’ aluminum eavestroughs to maximize drainage, reduce overflow and to better protect your home’s foundation.

  • Soffit & Fascia

    We replace soffit and fascia to protect the underlying wood and ensure your house is properly ventilated.

  • Siding Installation

    We install Vinyl, Composite, PVC, Hardie Board, Aluminum, Steel, Cedar Shake and Tongue & Groove, Wood (Maibec).

  • Roofing Installation

    We install all different types of roofing depending on your needs. Types include: Asphalt, Flat, Metal, Cedar, Slate and Rubber.

  • Specialty Work

    For a more unique look, we are experienced installers of specialty products such as lead-coated copper, copper, cedar and slate.

  • Emergency Service

    We're always available to provide immediate service when your roof, eavestrough or downspout has failed.

Eavestrough & Downspout

We primarily install 6’’ aluminum eavestroughs to maximize drainage, reduce overflow and to better protect your home’s foundation.

Soffit & Fascia

We replace soffit and fascia to protect the underlying wood and ensure your house is properly ventilated.

Siding Installation

We install Vinyl, Composite, PVC, Hardie Board, Aluminum, Steel, Cedar Shake and Tongue & Groove, Wood (Maibec).

Roofing Installation

We install all different types of roofing depending on your needs. Types include: Asphalt, Flat, Metal, Cedar, Slate and Rubber.

Specialty Work

For a more unique look, we are experienced installers of specialty products such as lead-coated copper, copper, cedar and slate.

Emergency Service

We're always available to provide immediate service when your roof, eavestrough or downspout has failed.

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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