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Attic conversion cost in Ontario

Most homeowners pay $43,100 – $71,900 (mid-range, typical $55,300, before GST/HST), 1% above the national average.

Most homeowners pay

$43,100 – $71,900Ontario · 30 m² · before GST/HST
Typical: $55,300
Labour $30,623Materials $24,681Work hours: 334

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m²
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mid-range, typical

Price levels in Ontario

TypicalLabourMaterials
Basic$49,000
$38,200 – $63,600
$26,880$22,072
Mid-range$55,300
$43,100 – $71,900
$30,623$24,681
Premium$63,600
$49,600 – $82,700
$34,617$28,979

Why prices in Ontario are different

Labour makes up about 55% of a mid-range attic conversion job, around 334 hours of trade work. Tradespeople in Ontario cost about 1% more than the national average (official wage data: Job Bank wages (Employment and Social Development Canada)), while materials are priced much the same across the country. That is why the total comes out 1% above the national figure.

Ontario ranks 2 of 9 provinces for this job, from most to least expensive.

By area

LocationBasicMid-rangePremium
Toronto$51,000$57,500$66,200
Northwest$50,100$56,600$65,000
Kitchener--Waterloo--Barrie$49,200$55,400$63,700
Muskoka--Kawarthas$48,900$55,300$63,500
Hamilton--Niagara Peninsula$48,100$54,400$62,600
London$48,100$54,400$62,500
Ottawa$47,800$54,000$62,000
Stratford--Bruce Peninsula$47,600$53,900$62,000
Northeast$47,600$53,700$61,700
Windsor--Sarnia$46,500$52,300$60,100
Kingston--Pembroke$45,400$51,300$59,100

Next to it in the price ranking

Other home projects in Ontario

Frequently asked questions

How much does attic conversion cost in Ontario?

A mid-range job typically costs $55,300 before GST/HST, with most homeowners paying between $43,100 and $71,900. A basic job is about $49,000 and a premium one about $63,600.

Is attic conversion more expensive in Ontario than the national average?

Ontario: 1% above the national average. Labour makes up about 55% of a mid-range attic conversion job, around 334 hours of trade work. Tradespeople in Ontario cost about 1% more than the national average (official wage data: Job Bank wages (Employment and Social Development Canada)), while materials are priced much the same across the country. That is why the total comes out 1% above the national figure.

How much of the price is labour in Ontario?

About 55% at the mid-range level, around 334 hours of work at local rates. The rest is materials, equipment and disposal, which vary much less between regions.

Where in Ontario is it most expensive?

Toronto is the most expensive area at about $57,500 for a mid-range job, and Kingston--Pembroke the least expensive at about $51,300.

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