Roof replacement cost calculator
Enter your home's footprint and roof pitch, or the number of squares from a roofer's report, and choose a material to see a local price range.
Estimate my roofRenovation Cost Calculator for Homeowners
Find out what your project is likely to cost before you call a contractor. Each calculator gives a low, typical, and high price for your state, then helps you add a contingency reserve so you can plan a budget you will not outgrow halfway through the job.
Home addition cost calculator
Estimate a new room, primary suite, second story, garage, or sunroom by size and finish level, including systems, design, and permit costs.
Estimate my additionHow to set a renovation budget
- Start with the typical estimate. It is the midpoint of the published range for a job like yours in your state.
- Add a contingency reserve. Hidden damage, code upgrades, and changes of mind are common. Many homeowners hold back 10–20%, and more for older homes.
- Plan for the high end. The calculator shows what your budget looks like if bids land at the top of the range.
- Compare like with like. Ask every contractor to price the same scope so the line items line up.
Comparing contractor bids
- Get at least three written bids for the same scope.
- Check the contractor's license, insurance, and references.
- Ask what is excluded and how change orders are priced.
- Be cautious with a bid far below the range. It often means a smaller scope or skipped steps.
- Avoid paying most of the price up front; tie payments to finished stages.
Prices are planning estimates from public wage data and published cost guides, not quotes. See the methodology and disclaimer.