Roof Replacement cost in Oshawa, ON
Oshawa homeowners typically pay $10,900 – $43,500 for roof replacement. Local labor and materials price 28% above the national average.
Oshawa average
$14,700
Typical low
$10,900
Typical high
$43,500
Per square foot
$5 – $51
Sample ZIP
L1H
What drives Oshawa pricing
Local labor
Skilled trades across Oshawa are unionised or association-backed, and GTA labour rates run well above the North American average — expect quotes in Canadian dollars roughly 28% higher than the US benchmark once exchange and local wages are factored in. Winter shuts down much exterior work, so the spring-to-fall window is the busiest and priciest.
Permits & code
Oshawa issues building permits through its municipal building department under the Ontario Building Code. Electrical work needs an ESA (Electrical Safety Authority) notification and inspection, gas work must be done by a TSSA-certified installer, and HVAC changes should be sized by an HRAI-trained contractor. New-home and major-renovation work may fall under Tarion warranty coverage, and lots near a river or ravine can require Conservation Authority approval before the city will issue a permit.
Climate & conditions
Oshawa has a cold continental climate with freeze-thaw cycles, heavy snow load and humid summers. Expect frost-depth footings, ice-and-water shielding on roofs, insulation upgrades to meet Ontario energy requirements, and exterior work scheduled between April and November.
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Estimated project cost
$8,269 – $12,403
Most homeowners pay around $10,336
Compare roofing material
Cost by material in Oshawa
Installed Oshawa pricing per square foot.
| Option | Installed cost |
|---|---|
| 3-tab asphalt shingle | $5 – $8 |
| Architectural shingle | $7 – $12 |
| Standing seam metal | $13 – $23 |
| Clay or concrete tile | $15 – $32 |
| Natural slate | $26 – $51 |
| Cedar shake | $12 – $20 |
| TPO / flat membrane | $8 – $15 |
Where the money goes in Oshawa
A typical $14,700 Oshawa project, broken down by line item.
- Materials40% · $5,880
- Labor45% · $6,615
- Tear-off & disposal10% · $1,470
- Permits & inspection5% · $735
Common add-ons
Extras that show up on Oshawa quotes but rarely in the headline price.
Plywood deck replacement
Per 4x8 sheet installed
Ridge vent
New gutters & downspouts
Skylight replacement
Each
Chimney flashing rebuild
Ice-and-water shield upgrade
Per square foot
Ways to save in Oshawa
- Bid in late winter or early spring — roofers discount before storm season demand.
- Ask whether your insurance covers hail or wind damage before paying out of pocket.
- Architectural shingles cost ~15% more than 3-tab but last 50% longer.
- Bundle gutters and attic ventilation into the same job to avoid a second mobilization fee.
- Never accept a storm-chaser door knock without checking a local license and physical address.
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Roof Replacement cost near Oshawa
Roof Replacement cost in Mississauga, ON
$11,581 – $46,219
Roof Replacement cost in Uxbridge, ON
$10,900 – $43,500
Roof Replacement cost in Scugog, ON
$10,815 – $43,160
Roof Replacement cost in Brock, ON
$10,645 – $42,480
Roof Replacement cost in East Gwillimbury, ON
$11,070 – $44,180
Roof Replacement cost in Whitchurch-Stouffville, ON
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