We keep a costed library of the 95 problems Canadian buyers meet most often. Read one at a time, each is a repair estimate. Read together, they say something about where the risk in a home actually lives, and it is not where most buyers look.
Built from the Casaroo Canadian Home Repair Cost Ranges dataset, v1.0.0, published free under CC BY 4.0. Figures are Canadian ranges. Methodology and limitations are stated in full below.
Buyers spend their emotional energy on kitchens and bathrooms, because those are the rooms a listing is built to sell and the ones you stand in and imagine your life. But a kitchen you dislike is a preference, and a preference has an off switch. A furnace at the end of its life does not care whether you like it.
When you line the tracked problems up by what they can cost, the split is stark. The cosmetic items cluster low and predictable. The mechanical items carry the long tail, the findings that run past ten, twenty, fifty thousand dollars. Here are the ten heaviest, by the top of their range.
Top of the Canadian cost range for the ten costliest tracked findings. Ranges, not quotes. Source: Casaroo Repair Cost Ranges v1.0.0.
The uncomfortable pattern is not just that the expensive problems are mechanical. It is that the expensive problems are the invisible ones. An oil tank is a shape in a basement corner or a pair of pipes in the grass. Knob-and-tube is a detail in an attic nobody photographs. A septic field is, quite literally, buried. Exterior cladding failures hide behind a wide flattering exterior shot taken on a sunny day.
A listing is an argument for a house, assembled by someone paid on the sale. It is not dishonest for it to lead with the renovated kitchen. But it does mean the photographs are systematically quiet about exactly the findings that carry the most financial weight, and a buyer who reads only the photos is reading the cheap half of the house.
There is a second pattern worth naming. Several of the heaviest findings, knob-and-tube, aluminum wiring, a Federal Pacific panel, 60 amp service, poly-B, an oil tank, a former grow-op, are insurance problems before they are repair problems. That changes the timing of the pain. A repair is a number you can plan around. An insurance refusal is a wall you hit late, usually in the last two weeks before closing, after the financing and inspection conditions have already gone. It is the single most avoidable bad surprise in the whole process, and avoiding it costs one phone call made early.
None of this argues against buying an older home, and it is not a counsel of fear. Plenty of the heaviest findings are manageable once they are known, priced and negotiated. The argument is narrower and it is about sequence: the costly problems are the invisible ones, the invisible ones are the ones a listing is quietest about, and the moment to find them is before your conditions expire, not after. Read the bones, not just the looks, and read them early.
Casaroo reads any listing for both halves, the bones and the appearance, and flags the costly mechanical problems the photos leave out. Free, in about a minute.
This index is a reading of the Casaroo Canadian Home Repair Cost Ranges, a curated dataset of 95 common home problems with cost ranges in Canadian dollars, split into mechanical and cosmetic. The rankings here use the top of each item's range, and the counts use the machine-readable component figures in the dataset.
Two honest limits. First, Canadian home-repair pricing has no single authoritative national source, so these are ranges assembled from contractor pricing and public sources, not readings from an official cost book. They are reliable for relative scale and for orientation, and they are not a substitute for a quote on a specific home. Second, the figures are national ranges and do not capture regional variation, which for some repairs is large. Read the patterns, not the decimal places. The dataset is versioned and dated so any figure quoted from it can be traced to a version.
First published 21 July 2026, v1.0.0. Intended to update annually as the underlying dataset is reviewed.
No. They are ranges, and this index reads the top of each range to rank the heaviest findings. Averages would hide exactly the long tail that is the point.
Yes. The underlying dataset is free under CC BY 4.0. Credit Casaroo and link back, and you can use it, including commercially.
No. It is general education about what problems cost, read across a whole library. A licensed home inspection is what tells you what is actually wrong with a specific house.
Casaroo reads any listing for the bones and the appearance, free, in about a minute.
Free listing check →