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Roof Replacement Cost in Markham

Roof Replacement in Markham typically costs $10,500 – $15,250
Based on 1,800 sq ft, architectural asphalt shingles (most common) · excluding 13% HST · compiled in 2026 year 10 month

大多伦多常见的两层半独立屋换沥青瓦屋顶大约 $11,000–$16,000，两层独立屋 $14,000–$19,000，屋顶形状复杂的 $17,000 以上；金属屋顶贵一倍左右。

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Unknown area: Roofing sloped area is usually larger than one floor’s building area; accurate measurement requires the expert to come onsite.
Estimate $10,500 – $15,250 (before tax)
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📞 Yongsheng Roofing Company 647-928-1648
📞 Leading Renovation & Construction Company 905-604-8738

Price ranges

Types of shinglesPrice
Architectural asphalt shingles (most common)
Price per sq ft including old shingle removal and installation
$5.5 – $8 / sq ft
Standard three-tab asphalt shingles
Cheap with shorter lifespan, less commonly used now
$4.5 – $5.5 / sq ft
Premium / impact-resistant asphalt shingles$8 – $12 / sq ft
Metal shingles / metal panels$10 – $16 / sq ft
Metal standing seam Roofing
Most expensive and durable
$14 – $22 / sq ft

Usually includes: Removal of one old shingle layer and debris disposal, waterproof underlayment, code-required ice and water shield, drip edge, new shingles and labor. Usually excludes: roof deck replacement, chimney/skylight flashing, 13% HST.

What affects the price

  • Slope: Slope about +12% for 8/12, about +22% for 10/12 (other contractor: 6/12 ×1.15, 8/12 or more ×1.25)
  • Floor: Two stories about +6%, three stories about +12%%
  • Roofing shape: Four-sided slope with dormers more expensive than simple two-sided slope 25–40%
  • Number of Old Shingle Layers: Second floor about +$1 per sq ft, third floor +$2 (some charge $800–$1,500 per floor)
  • Roof panels: If rotten, replace: each 4×8 ft sheet approx. $120, entire Roofing reroof about $3–$6 per sq ft
  • Full Roofing Ice and Water Shield: about +$0.85 / sq ft, or an upgrade fee of $200–$600
  • Chimney / skylight flashing: Chimney $400–$1,200 (commonly around $650), skylight about $450
  • Tax: Most quotes exclude 13% HST

Local notes for Markham

  • No public data on Roofing prices separated by city in Greater Toronto Area; individual contractor info shows Toronto area at the high end of the range, 905 area (including Mississauga, Markham, Vaughan, etc.) slightly lower.

Saving money & avoiding pitfalls

  • Get at least 3 written quotes, clarify: number of layers to remove, size of ice and water shield area, price per roof deck panel (include in contract), whether Junk Removal is included, and if tax is included.
  • Check both kinds of warranty carefully: shingle manufacturer warranty and contractor's workmanship warranty (length, responsibility).
  • Request to see Insurance proof (work injury Insurance and liability insurance) before signing contract.

FAQ

Do TorontoRoof Replacement require a building permit?

According to Toronto government guidelines, roof replacement without structural changes generally doesn’t require a building permit; structural changes (such as replacing rafters or changing slope) do require one.

How much more expensive is metal Roofing than asphalt shingles?

Metal shingles/metal panels about $10–$16 per sq ft; standing seam about $14–$22, roughly twice the cost of architectural asphalt shingles ($5.5–$8). HomeStars Toronto metal Roofing average about $35,000.

Is tax included in the quote?

Most contractors exclude 13% HST in quotes; standardize when comparing.

Sources

Public sources used for the prices on this page (10/2026). Sources measure differently, so we use the range where most of them overlap. For reference only — actual quotes from pros take precedence.

  1. Green Building Canada – Average Cost of Roof Replacement in Ontario（2026-06）
  2. BuildersOntario – Roof Replacement Cost Calculator Ontario (2026)（2026-10）
  3. BuildersOntario – Metal Roof Cost Calculator Ontario (2026)（2026-10）
  4. Custom Contracting – Roof Replacement & Repair Cost Ontario (2026)（2026-10）
  5. Blue Knight Roofing – What a Roof Replacement Actually Costs in Toronto (2026)（2026-07）
  6. HomeStars – Roofing Cost Toronto（2026-08）
  7. City of Toronto – When do I need a building permit
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