Flat Roofing
Residential Flat
Roof Installation
Flat and low-slope roof installation for additions, garages, porches and homes across London and Southwestern Ontario.
Flat roofs for additions, garages and homes
Flat sections on homes fail for one reason more than any other: they were installed like an afterthought. We treat residential flat roof installation as the specialty it is. Whether it’s an addition, a garage, a porch roof or a full flat-roofed home, we build it to shed water and last.
We install EPDM, TPO and modified bitumen, using tapered insulation where the roof needs help draining. Particular attention goes to the places residential flat roofs tend to leak: wall connections, changes in slope, drains and edges. Quotes are free, and our warranties are in writing.
What’s included
Additions & extensions
Flat roofs over new additions, tied in cleanly where they meet your existing roofline.
Garages & carports
Durable membrane roofs for detached garages, carports and workshops.
Porches & dormers
Small low-slope sections need the same care as a full roof because they leak when the details are rushed.
Drainage
Tapered insulation, scuppers and drains placed so water leaves your roof instead of ponding on it.
Free quote
Get your home roof priced
Tell us about your project and we’ll book a free on-site inspection.
Why Legacy
Ownership you can see
- We treat your home with respect
Tarped landscaping, magnet-swept driveway, and a clean site every evening. - Honest scope
If a section can be repaired instead of replaced, we’ll say so before quoting the bigger job. - Flat roofs are our specialty
This isn’t a sideline to shingle work. Flat and low-slope roofing is what our family company does.
How it works
Your home’s flat roof, step by step
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1
Inspect
A free visit to check your deck, slope and how water currently drains.
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2
Quote
A clear, itemized estimate with membrane options explained in plain language.
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3
Install
Membrane, insulation and flashing installed, with the building kept watertight throughout.
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4
Warranty
A full two-year warranty plus our five-year maintenance plan, in writing.
Residential flat roofing FAQs
How much does a residential flat roof cost?
It depends on size, access and the membrane you choose. We give free, itemized quotes after an on-site inspection instead of guessing from the curb.
What’s the best flat roof material for a house?
For most homes, EPDM or modified bitumen. We’ll recommend one based on your roof’s size, foot traffic and budget, and explain why.
How long will a flat roof on my home last?
Service life depends on the membrane, drainage, exposure and maintenance. After inspecting the roof, we can explain what to expect from the systems that suit it.
Can you match a flat roof into my sloped roof?
Yes. Tie-ins between flat and sloped sections are a common failure point, and detailing them correctly is a core part of our work.
Get started
Get a free
quote today
Find out why Legacy Flat Roofing & Sheet Metal are the best in the business.