In everyday use an estimate is an approximate price, a quote is a firm price for a defined scope, and a bid is a price submitted to compete for a job. None of those words reliably binds anyone by itself. The document that counts is the written contract: scope, price, schedule, payment terms and the right to cancel when the law gives one.
What the words usually mean
| Word | Usually means | Watch for |
|---|---|---|
| Estimate | An educated guess at the cost, often before the work is fully scoped | “Final price may vary” with no limit or process for changes |
| Quote | A price for a specific scope, often valid for a set period | An expiry date that pressures you to sign fast |
| Bid | A price submitted to compete, common on larger or multi-trade jobs | Bids built on different scopes that look comparable but are not |
| Proposal | A quote with more detail on approach and options | Options that quietly change what is included |
| Contract | The signed agreement that defines what you both owe | Blank spaces, missing dates or verbal promises left out |
These are working definitions, not legal ones: usage varies by trade and region, and state law decides what a signed document obliges. When a contractor hands you any of these, ask whether the price is fixed for the scope shown and for how long.
What to get in writing, whatever it is called
The FTC advises that a written estimate include a description of the work, the materials, a completion date and the price, and that the contract include the contractor’s name, address, phone and license number, estimated start and finish dates, the promises made in conversation, and no blank spaces [1]. It also notes that contract requirements vary by state and suggests asking for a written agreement even where your state does not require one [1].
California, for example, requires a home improvement contract to be in writing and to state the contract amount in dollars and cents, including labor and materials [2].
Changes after you sign
Hidden damage, upgraded materials and owner requests all change the price. Ask how changes are handled before you sign: a written change order with the price agreed before the extra work starts is the norm to ask for. A contract that lets the price move without your written approval deserves a second look.
Next steps
Quote Check reads a quote against what owners reported paying and the contract rules on file.
Check the price and termsSources
- FTC, “How To Avoid a Home Improvement Scam” (July 2022). Retrieved 2026-10-05.
- California Business and Professions Code §7159.5. Retrieved 2026-10-05.
- FTC, “Buyer’s Remorse: The FTC’s Cooling-Off Rule May Help” (September 2025). Retrieved 2026-10-05.
Information, not legal, insurance or engineering advice. Spot something wrong? Send a correction; accepted corrections are logged publicly with a date.