How much contingency should I add to a remodel?

10% for newer homes with cosmetic scope, 15–20% for kitchens and baths, 25%+ for older homes with unknown wiring, plumbing, or structural conditions.

What does contingency cover?

Hidden conditions discovered during demolition — rot, outdated wiring, asbestos, framing surprises — not appliance upgrades or design changes you choose.

Should contingency be in the contract?

Hold it as a separate budget line you control, released only for documented change orders — not folded into contractor profit invisibly.

When is contingency spent?

During construction when unforeseen conditions require additional work. Unused contingency returns to you or funds approved upgrades at the end.

How Much Contingency to Budget for a Home Renovation (2026)

July 1, 2026 · Cost Guide · 1 min read

Renovation budgets fail when surprises meet zero slack. Contingency is not pessimism — it is how professionals finish projects without stopping mid-stream.

Contingency by Project Type

Paint / flooring refresh: 5–10%
Kitchen or bath remodel: 15–20%
Whole-home renovation (pre-1980): 20–30%
Addition with foundation work: 15–25%

Protect the Contingency

Document every change order. Do not let 'while we're at it' upgrades consume hidden-condition funds. Compare remodelers by city or near you.

Frequently Asked Questions

How much contingency should I add to a remodel?: 10% for newer homes with cosmetic scope, 15–20% for kitchens and baths, 25%+ for older homes with unknown wiring, plumbing, or structural conditions.
What does contingency cover?: Hidden conditions discovered during demolition — rot, outdated wiring, asbestos, framing surprises — not appliance upgrades or design changes you choose.
Should contingency be in the contract?: Hold it as a separate budget line you control, released only for documented change orders — not folded into contractor profit invisibly.
When is contingency spent?: During construction when unforeseen conditions require additional work. Unused contingency returns to you or funds approved upgrades at the end.