Budget planning

Renovation Contingency: Keep Uncertainty Outside the Finish Budget

A contingency is not permission to spend more. It is a separate reserve for conditions and scope that could not reasonably be confirmed before work began.

2026 planning examples

Planned construction scopeModel planning range
$25,000 planned scope$1,900–$3,600
$65,000 planned scope$4,900–$9,400
$150,000 planned scope$11,300–$21,800

Canada-average model examples using standard selections unless stated otherwise. Rounded to the nearest $100; taxes are not automatically added.

Separate contingency from allowances

An allowance covers an undecided product within known scope. A contingency covers uncertainty. Combining them makes it hard to see whether the project changed or selections simply became more expensive.

Age is a clue, not an answer

Older homes can carry more uncertainty, but condition, past renovations and how much work is being opened matter too. Increase the reserve when investigation is limited or connected systems are being changed.

Create rules before construction

Decide who can approve use of the reserve, what documentation is required and how unused funds will be handled. Change orders should still be written and priced.

Keep cash-flow needs in view

A reserve only helps if it remains available when a legitimate change appears. Do not commit it to optional finishes before hidden work is resolved.

About the numbers on this page

Dollar examples are rounded outputs from Home Cost Canada’s editorial planning model, not observed contractor quotes or official government price lists. Review the assumptions and limitations before using them.

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Planning information only. Confirm scope, permits, site conditions, tax and final pricing with qualified local professionals.