Renovation Cost Calculator

Renovation Contingency Calculator

The example on this page is a $65,000 planned scope: midpoint reserve 10%, planning range $4,900–$9,400. Estimate a contingency reserve based on your planned renovation budget and project uncertainty.

Baseline
Project details
Estimate
Live result—Planning range—

Project Details

Adjust the inputs below. Your estimate updates instantly.

Adjust the scopeEvery change updates the planning range instantly. No account or email required.
Location treatment: This calculator does not apply a city multiplier. The starting project budget is supplied by you, so the reserve is driven by scope complexity, home age and scope certainty rather than multiplying that budget by location again.
Planning estimate only. Confirm measurements, products, labour, permits, access and site conditions. GST, HST and provincial sales taxes are not automatically added.
After the estimate

Use the range to price one written scope.

Ask contractors to price the same materials, quantities, preparation, permits, disposal and exclusions. A cheaper total with smaller allowances is not necessarily a cheaper project.

Read the detailed planning guide →
1Confirm measurements
2Normalize allowances
3Keep a contingency