Ontario Contractor costs – Structure


As property inspectors, under the terms of our code of conduct, while we may have the skills, we cannot perform work to rectify issues we might have identified in any of our inspections.

Likewise we cannot recommend individual contractors to work on these remediations, but are happy to give you a list of local contractors we know of that specialise in the area of work needed.

For your benefit, and to judge whether you are getting a good deal from your contractor we have posted a series of pages that identify the average Contractor cost for different types of work so you can compare prices.

Remember, the best is not necessarily the cheapest nor is the most expensive.  It is up to you to ensure the contractor has the adequate qualifications to work on your property, and you should always ask for references, and make sure they are both insured and not on the complaints list of the Better Business Bureau.

Structure Modifications &
Renovations

Foundation – Underpin one corner of house

$3,000.00 – up

Foundation – Underpin or add

$3,000.00 – up

Foundation – Lower basement floor by underpinning

$5,000.00 – up

Lower basement floor with bench footings

$5,000.00 – up

Replace load bearing basement beam

$1,600.00 – up

Install additional joist along side for support

$110.00 – up

Jackpost – install

$325.00 – 550.00

Termite treatment – chemical

$1,200.00 – up

Termite inspection

$150.00 – 200.00

Opening or Removal of bearing wall

$750.00 – 1,500.00

Opening & Installing door in interior wall

$600.00 – up

Rebuild arch over door or window openings

$500.00 – up

Install lintel in masonry wall opening

$350.00 – up

Construct exterior basement stairwell

$5,000.00 – up

Collar Ties

$300.00 – up

Collar Tie bracing

$150.00 – 250.00

Building an addition – basic quality

$70.00 – 90.00 sq.ft.

Building an addition – good quality

$90.00 – 110.00 sq.ft.

Building an addition – Custom quality

$110.00 – up sq.ft.

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