Siding replacement cost estimator

Estimate an illustrative price range for new siding from the wall area to be clad, the cladding type and one-time items such as removal and trim.

sq ft
CAD
CAD
CAD
Low estimate before tax
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High estimate before tax
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Illustrative estimate only — not an offer or quote.

Measure each wall (length × height), add the gable triangles (½ × width × height) and subtract large openings such as garage doors and big windows. Contractors usually add 10–15% for waste and cuts, so either enter the gross area or add that allowance yourself. Siding is often quoted per square (100 sq ft), like roofing.

Formula: low = wall area × low price per sq ft + extras; high = wall area × high price per sq ft + extras.

Worked example (illustrative): 1,600 sq ft of vinyl at $6–$10 per sq ft, plus $2,500 for removing old aluminium siding, new trim and soffit work: low = 1,600 × $6 + $2,500 = $12,100; high = 1,600 × $10 + $2,500 = $18,500, before tax.

Limits: the presets are illustrations only. Rigid insulation under the siding, a new weather barrier, rotten sheathing, window wrapping, soffit and fascia, eavestroughs and two- or three-storey access can each change the total substantially. Masonry veneer may need structural support and a permit. The siding estimate worked example breaks a real-world style quote into these lines.

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