What a home inspection turns into on the renovation budget

A home inspection is a list of renovation projects written by someone who is not pricing them. Before a purchase condition expires, turn each finding into its own line.

A lower purchase price does not pay those lines. Ontario resale prices in August 2026 were lower than a year earlier. Statistics Canada's residential construction index for Toronto was up 0.1 percent from the second quarter of 2025 to the second quarter of 2026. Ottawa's was up 3.5 percent. Negotiate the house. The repairs follow the trades, and this is not legal advice.

An inspector is not an engineer, not a load calculation, and not a designated-substance survey. Further evaluation recommended means a trade quote before you waive the condition.

Water first

A damp basement beats a dated kitchen. Interior drainage, a sump, and a pump are their own project, often a few thousand dollars to the mid-teens in southern Ontario when access is ordinary. Exterior excavation is the larger number. Finish over a wet foundation and you pay for the drywall twice.

Do not bury that stain in a 15 percent contingency on a rec room. Contingency is for what you could not see. A mark at the cove joint is visible.

A tired roof is a replacement, not a patch

There is no planning figure here for a few shingles. A replacement is a different scope. The roof calculator's Ottawa default is about 1,800 square feet of architectural asphalt, one layer torn off, a sheathing allowance, and ice-and-water at the eaves, on a simple walkable roof. On the same 1960 to 1989 mid-range house, that lands near $14,500 typical, including contingency. A second layer, rotten plywood, or dormers on a steep roof costs more. Get a roofer's number before you waive, or hold the replacement as its own line.

Insurance problems show up as electrical

Knob-and-tube, a Federal Pacific panel, and a 100-amp service the next renovation will overload are not decorating issues. In Ontario, existing knob-and-tube is not automatically illegal. Many insurers still will not write the house. A complete rewire, before anyone patches the plaster, is commonly planned at roughly $8,000 to $15,000 for a small house and $12,000 to $25,000 or more for a larger one.

A straightforward overhead panel upgrade, on the house side of the meter, is often $2,000 to $5,000 in Ontario when the mast can already carry 200 amps. If the utility has to change the feed from the street, homeowners in the GTA report that side alone at $15,000 to $20,000. The electrician cannot quote the utility. Ask which invoice you are buying.

Asbestos is not a surprise in a 1965 house

Canada's 2018 ban does not clean a house built before it. Pipe wrap, vermiculite, and old floor tile need a test, or they get treated as asbestos once a contractor disturbs them. Testing is often a few hundred dollars. Limited removal is commonly $1,500 to $8,000. A vermiculite attic is its own project. None of that fits inside a kitchen contingency.

Then the rooms you actually wanted

Kitchen, bathrooms, and floors come after the house is dry, insurable, and not hiding a designated substance. Stacking that work on an unpriced roof and an unpriced panel is how a $40,000 kitchen becomes the project you cannot start.

Put water, the roof, electrical, and hazardous materials on separate lines. Then see if the house still has room for the renovation you wanted. If those lines eat the offer, that is the answer. Walking away is cheaper than finding out in December with a dumpster in the driveway.