Compare builder quotes side by side
Three quotes, three very different prices? Usually it's because they don't cover the same work. Enter what each quote says and this tool will put them on the same footing, show you the gaps, and write the questions to send each builder. Free, no sign-up, and nothing you type leaves your device.
Last updated October 2026 · built by working UK builders
- 1. The job
- 2. The quotes
- 3. What each covers
- Your comparison
1. The job
2. The quotes
No need for real names. Label them Builder A, B and C if you like. Nothing leaves this device.
3. What each quote covers
Go through each quote and mark what it says. If it doesn't mention something, leave it as Not mentioned. That's important.
The more rows you fill in, the more useful this gets. Most of the difference between quotes is in the detail.
Your comparison
This tool compares what you've entered. It can't see your house, your drawings or the quotes themselves, and it isn't legal advice.
How to compare builder quotes
Big gaps between quotes are normal. They usually mean the builders priced different scopes, used different provisional sums, treated scaffold and skips differently, or sit on different sides of the VAT line. Before you pick a number, put every quote on the same footing.
- Turn each quote into the total you will actually pay, including VAT.
- List the main parts of the job and mark each one included, excluded, provisional or not mentioned.
- Treat “not mentioned” as excluded until the builder confirms it in writing.
- Add up provisional and PC sums. A quote that is mostly allowances is not really a fixed price.
- Compare adjusted totals, then the deposit (5-10% is normal), stage payments, programme and insurance.
For the full explanation, read why builder quotes are so different. For a single quote, use the free builder quote checker. When you want a builder to read them, book a £59 quote review covering up to three quotes for one job.
Frequently asked questions
Why do builder quotes vary so much for the same job?
Usually because the builders have not priced exactly the same work. Different inclusions, exclusions, provisional sums, preliminaries and VAT treatment explain most of the gap. Put every quote on the same footing before you compare totals.
How do I compare builder quotes like for like?
Convert each quote to a VAT-inclusive total, mark each part of the job as included, excluded, provisional or not mentioned, price the gaps, then compare the adjusted totals and the payment terms. This tool walks you through that for up to three quotes.
Should I pick the cheapest builder quote?
Not until you know what it covers. A much cheaper quote often leaves work out or uses low allowances. The best value is usually the clearest, most complete quote from a builder you trust.
How much deposit should I pay a builder?
A deposit of 5-10% is normal, or nothing at all. Citizens Advice treats around 25% as the upper end often cited. Anything higher before materials arrive on site is a warning sign.