How Much Does Roof Replacement Cost in British Columbia
BC roof replacement costs in 2026: asphalt, metal, cedar and flat installed prices ($7,500–$45,000+), coastal-climate material choices, permits, and strata rules.
How Much Does Roof Replacement Cost in Ontario
2026 Ontario roof replacement costs: per-square-foot ranges for asphalt, metal, and flat roofs, what drives the bill, and when a permit is needed.
Applies in: Ontario
A roof in Ontario takes a beating: freeze-thaw cycles, ice dams, heavy snow loads, and summer heat that curls cheap shingles. When replacement time comes, the quotes can differ by thousands, so it pays to know the bands before a contractor hands you a number. Here is what 2026 Ontario pricing actually looks like, what drives it, and where permits fit in.
The figures below are market ranges drawn from current Ontario contractor cost guides, not quotes. Prices are installed, per square foot of roof surface, and include tear-off, underlayment, and disposal unless noted.
What it costs per square foot
Architectural asphalt dominates Ontario residential roofing — it handles freeze-thaw well and sits in the price sweet spot.
| Material | Installed, per sq ft | Typical service life |
|---|---|---|
| 3-tab asphalt | $4.50–$5.50 | 15–20 years |
| Architectural (laminate) asphalt | $5–$8.50 | 15–30 years |
| Premium / designer asphalt | $8–$11 | 30–50 years |
| Exposed-fastener (screw-down) metal | $6–$9 | 25–40 years |
| Standing seam metal | $9–$18 | 40–70 years |
| Flat: TPO, EPDM, modified bitumen | $4–$7 | 15–25 years |
| Cedar shake | $10–$17 | 25–30 years |
| Slate | $17–$30+ | 70+ years |
The jump from 3-tab to architectural asphalt is the best value on the table: roughly a dollar more per square foot buys a heavier shingle with a longer wind rating and a much better chance of reaching year 25. Three-tab has all but disappeared from full replacements in Ontario for exactly that reason.
Metal's wide bands are because metal is not one product. Exposed-fastener panels and a standing seam system share a material and almost nothing else — the seam profile, the fastening system, and the labour to install it are completely different jobs. A standing seam roof runs roughly double the price of architectural asphalt; screw-down metal narrows the gap but needs periodic fastener maintenance over its life.
What a typical home costs, all in
Per-square-foot pricing is quoted on roof surface area, not floor area — a 1,200 sq ft footprint with a typical pitch is closer to 1,500 sq ft of roofing. For a standard detached home, published 2026 Ontario averages put asphalt shingle replacements at $6,500 to $18,000, with many contractors quoting $10,000 to $20,000 for average homes once tear-off and complexity are in. Contractor pricing bands for a 1,500 sq ft roof: $5,250 to $8,250 for basic asphalt, $10,500 to $13,500 for metal. One Brampton contractor's 2026 numbers: $8,500 to $16,000 for a typical 1,500–2,000 sq ft asphalt shingle roof, averaging around $12,000 to $13,000 installed.
Roofing material prices rose roughly 8 to 12 percent heading into 2026, so older online numbers undershoot. Always confirm which area basis a quote uses before comparing two numbers — a per-square price on surface area and a lump sum on footprint area are not the same thing.
What drives the quote
Three things matter more than anything else:
Pitch and complexity. This is the biggest lever after material. A steep roof with dormers, valleys, and skylights costs more per square foot in labour than a simple low-pitch gable — and labour is 40 to 60 percent of the total on most residential re-roofs. If two quotes differ wildly, check whether both are pricing the same pitch and complexity honestly.
What is coming off. Quotes assume tearing off the old roof down to the deck, plus new underlayment, flashing, and disposal of the old material. A second layer of old shingles adds labour and bin costs. Rotted sheathing discovered during tear-off is billed extra — ask upfront how the contractor prices deck replacement per sheet so it is not a surprise.
Ice-and-water shield. Ontario roofs fail at the eaves and valleys first: ice dams back water up under the shingles, and that is a water-damage claim, not a roofing problem. A full layer of ice-and-water membrane at the eaves and in the valleys is the single most important line item on an Ontario quote relative to its cost. Do not let it be the thing a low quote cuts.
Permits in Ontario
A like-for-like re-shingle usually does not need a building permit in Ontario. Niagara Falls, Kitchener, WhiteStone, and Asphodel-Norwood all list re-shingling with the same materials as permit-exempt, and Toronto exempts replacing or repairing a roof without structural work. The exemption holds only while the roof structure is untouched: re-shingling with no structural repairs, no new sheathing, and no change to the roofline or slope.
Get the building department involved when the job goes beyond a simple re-roof:
- Structural repairs, rotted trusses, or new roof sheathing
- Changing the pitch, adding dormers, or altering the roofline
- Adding skylights or solar installations
- Switching to a much heavier material (asphalt to slate can need structural reinforcement)
The final decision belongs to your municipality — a project that is exempt in one city can need review in another, especially for heritage properties. One call before tear-off beats a stop-work order mid-job.
Who is allowed to do the work
Roofing is not a compulsory trade in Ontario the way plumbing or electrical are, so the licence-barrier argument does not apply — but the stakes are the same. A bad roof voids the shingle warranty (most require certified installation), and your home insurer can refuse water-damage claims tied to improper work. Look for a contractor with a WSIB clearance certificate, liability insurance, and a manufacturer certification from the shingle maker they install. The warranty that matters is the workmanship warranty from the installer, not the prorated shingle warranty from the manufacturer.
How to keep the bill down
- Get three itemized quotes on the same material and scope, and compare line by line: underlayment grade, full tear-off, flashing, skylights, disposal. The cheapest quote that omits flashing is the most expensive roof.
- Ask how deck replacement is priced per sheet before work starts.
- Book in spring or fall when crews have availability; peak-summer slots go to whoever booked first.
- Never skip the ice-and-water shield at the eaves and valleys to save a few hundred dollars.
- If the roof is under 15 years old and the damage is local, price a repair ($500 to $3,500 typically) before assuming you need a replacement.
Related guides
- How much does a plumber cost in Canada: the trades-pricing companion: hourly rates, service-call fees, and flat-rate ranges for common plumbing jobs across Canada.
- How much does an electrician cost in Ontario: the electrical counterpart: hourly rates, panel upgrades, and Ontario's ESA notification fees.
- How much does furnace replacement cost in Ontario: another big-ticket Ontario home bill: furnace replacement ranges, efficiency tiers, and rebate angles.
Roof replacement costs in Ontario (2026), installed per square foot
| 3-tab asphalt shingles | $4.50–$5.50 |
|---|---|
| Architectural (laminate) asphalt shingles | $5–$8.50 |
| Premium / designer asphalt shingles | $8–$11 |
| Exposed-fastener (screw-down) metal | $6–$9 |
| Standing seam metal | $9–$18 |
| Flat roof: TPO, EPDM, modified bitumen | $4–$7 |
| Cedar shake | $10–$17 |
| Slate | $17–$30+ |
Prices in Canadian dollars, per square foot of roof surface, installed, including tear-off, underlayment, and disposal unless noted. These are market ranges drawn from current Ontario contractor cost guides, not quotes. Material, pitch, and roof complexity move the final number.
Questions people ask
How much does a roof replacement cost in Ontario?
Most Ontario homeowners pay between $6,500 and $18,000 for a full replacement with asphalt shingles, with many typical jobs landing in the $10,000 to $20,000 band for average homes. Metal roofs roughly double that. The spread is wide because material, pitch, tear-off, and roof complexity move the number more than any other factors.
What does roof replacement cost per square foot in Ontario?
Installed prices cluster in fairly tight bands per square foot of roof surface: 3-tab asphalt at $4.50 to $5.50, architectural asphalt at $5 to $8.50, exposed-fastener metal at $6 to $9, standing seam metal at $9 to $18, and flat roofs (TPO, EPDM, modified bitumen) at $4 to $7. These are installed prices, including tear-off and underlayment.
How much more does a metal roof cost than asphalt in Ontario?
Standing seam metal costs roughly double asphalt per square foot — $10 to $18 versus $5 to $8.50 for architectural shingles. Exposed-fastener (screw-down) metal narrows the gap at $6 to $9. Metal lasts 40 to 70 years against 15 to 30 for asphalt, so the lifetime math is closer than the quote suggests.
How much of the bill is labour?
Labour typically makes up 40 to 60 percent of the total on a residential re-roof in Ontario. That is why pitch, access, and roof complexity (dormers, valleys, skylights) swing quotes so much: a steep, cut-up roof is mostly extra labour, not extra material.
Does roof replacement include tearing off the old roof?
Almost always, and it should. Ontario quotes are usually installed prices that include tear-off of the existing layers, underlayment, flashing, and disposal. A second layer of old shingles adds labour and disposal cost. Shingling directly over an old layer without a tear-off is legal in some cases but hides rot and voids most manufacturer warranties.
Do I need a permit to replace my roof in Ontario?
Usually not for a like-for-like re-shingle. Niagara Falls, Kitchener, and several other Ontario municipalities explicitly list re-shingling with the same materials as permit-exempt, provided nothing structural changes. You will likely need a permit if the work includes structural repairs or new sheathing, changes to the roofline or slope, dormers or skylights, or a much heavier material like slate. Confirm with your municipal building department before tear-off.
How long does a roof last in Ontario?
Architectural asphalt shingles last roughly 15 to 30 years in Ontario's freeze-thaw climate; 3-tab shingles 15 to 20. Metal roofs last 40 to 70 years, cedar 25 to 30, slate 70-plus, and flat membrane roofs 15 to 25. Ontario's ice damming and freeze-thaw cycles punish cheap underlayment, so ice-and-water shield at the eaves matters more here than in milder provinces.
What adds the most to a roof replacement quote?
Pitch and complexity first: a steep roof with dormers and valleys costs more per square foot in labour than a simple low-slope gable. Material choice is second. A second layer to tear off, rotted sheathing found during tear-off, new flashing or skylights, and a larger or two-storey home all push quotes toward the top of every range.
How can I keep a roof replacement bill down?
Get three itemized quotes on comparable materials and compare what is included, not just the total — underlayment grade, tear-off of all layers, flashing, and disposal. Book in the shoulder season (spring or fall) when crews are easier to schedule. Do not cheap out on ice-and-water shield at the eaves and valleys: it is a small line item that prevents the most expensive Ontario roof failure, ice-dam water damage.
Should I repair or replace my roof?
Roofing contractors put typical repairs at $500 to $3,500 against $10,000 to $20,000 for a full replacement on an average home. Repair if the roof is under 15 years old and the damage is localized. Replace if the shingles are curling or losing granules across the whole roof, if you are seeing leaks in multiple places, or if the roof is past 20 years and you plan to stay in the home.
Sources
Sources: Sherak — roof replacement cost in Ontario 2026, The Roof Technician — new roof cost in Toronto 2026, D'Angelo and Sons — 2026 Ontario roof replacement costs, Le Ciel Roofers — new roof cost in Brampton, Peace of Mind Exteriors — repair vs replacement costs, Roof replacement permit in Ontario (Ronovations), Niagara Falls — when a building permit is needed, Kitchener — when you need a building permit, Township of Asphodel-Norwood — building permit.
Ranges are current as of October 2026. Get written itemized quotes for your roof before relying on any number here.