A quote is usually a price for clearly described work. An estimate is a trader's best guess, and it can move once the job starts. Knowing which one you are holding tells you how much the final bill could change.
Many traders use the two words loosely. Some write "quote" on a page full of open-ended allowances. Others write "estimate" on a price they fully intend to honour. The label helps, but the wording underneath matters more.
This guide shows UK homeowners how to read a price, spot the parts that can still change and ask for something firm enough to compare. It is practical guidance, not legal advice.
Two prices, different promises
Illustrative
| Quote A | Quote B | |
|---|---|---|
| Headline price | £9,800 | £8,500 |
| Described as | Fixed quote for listed work | Estimate, "approx., subject to findings" |
| Floor repairs | £600 included | Not mentioned |
| Tiles | Named product, priced | £1,000 allowance |
| Changes to price | Only by written variation | Not explained |
| Valid until | 30 days from issue | No date |
Quote B looks £1,300 cheaper. But its floor, tiles and final total are all still open. Ask Trader B to fix the work list and explain how changes are agreed before you compare the two totals.
Why the word on the paper matters
The difference shows up at the end of the job. With a firm quote, you generally expect to pay the stated total unless you agree a change. With an estimate, a higher final bill may be harder to dispute.
That makes "quote" versus "estimate" a money question, not a vocabulary one. Two prices with the same headline figure can carry very different risks.
If a price is only spoken, write it down and ask the trader to confirm it by email or message. A verbal figure is easy to remember differently once work is under way.
What a quote usually means
A quote is an offer to carry out described work for a stated price. The clearer the description, the more useful that price becomes.
A firm quote normally names the trader and the property, lists the work and materials, and gives one payable total. It should say whether VAT is included and how long the offer stays open.
Look for wording such as "fixed price", "quotation" or "total payable". Then check the work list underneath actually supports it. A fixed price for vague work still leaves room for disagreement about what was included.
What an estimate usually means
An estimate is an informed guess based on what the trader can see and assume. It is common, and often honest, when the job cannot be fully priced before opening up.
Repairs to hidden pipework, rotten timber or old electrics are typical examples. A trader may not know the full scope until a floor is lifted or plaster comes off.
An estimate is still useful for budgeting. But ask how far the final price could move, what would cause that and whether you will be told before extra costs are incurred.
Words like "approx.", "from", "ballpark" or "subject to findings" usually signal an estimate, whatever the page heading says.
Watch for provisional sums and allowances
Many quotes are firm for most of the job but leave a few lines open. These often appear as a provisional sum, a PC (prime cost) sum or an allowance.
A provisional sum is a placeholder for work that cannot yet be defined, such as "£800 for possible joist repairs". An allowance usually covers items you have not chosen yet, like "£1,000 for tiles".
These lines are not a problem in themselves. The risk is treating them as fixed. Ask for each one:
- What exactly the figure covers, and what it does not
- How the real cost will be shown to you, such as receipts or photos
- Whether the trader adds a margin or labour on top
- What happens if the real cost is lower, as well as higher
When you compare quotes, add the provisional lines up separately. A low total built on generous allowances may not stay low.
When a fixed quote can still change
Even a genuine fixed quote can change for good reason. The most common is that you change the work: a different tile, a moved socket, an extra radiator.
Prices can also change if conditions differ from what the quote clearly assumed. A good quote states those assumptions, so you can see where the price is protected and where it is not.
Agree a simple rule before work starts. Any change should be described, priced and approved in writing before it is done. A text or email is far better than a conversation on site.
Citizens Advice's home-improvement checklist recommends getting quotes and agreements in writing before work begins. The linked guidance is for England. Use advice that matches where you live.
Turn an estimate into something you can compare
You cannot compare a firm quote and a loose estimate fairly. Before you choose, ask each trader to move their price as close to the same footing as possible.
- Send every trader the same written description of the job.
- Ask estimate-only traders whether they can give a fixed price for the parts they can see.
- Ask them to separate uncertain work into named provisional sums with a stated limit.
- Request a day rate or unit rate for extras, so changes are priced on a known basis.
- Put each answer in writing and keep revised versions clearly dated.
Some uncertainty may remain, especially on older homes. That is fine, as long as you can see exactly where it sits and how it will be handled.
Questions to ask before you agree
- Is this a fixed quote or an estimate, and for which parts?
- Which lines are provisional sums or allowances, and what limits apply?
- Is VAT included in the total, extras and day rates?
- How will changes or hidden problems be shown, priced and approved?
- How long is this price valid, and what could make it change before work starts?
- What does the deposit cover, and which completed stages trigger later payments?
Send the same questions to every trader. Their answers often tell you more than the headline price.
Your questions
Is an estimate worse than a quote?
Not always. An honest estimate on uncertain work can be more realistic than a low "fixed" price that relies on extras later. What matters is that the uncertainty is visible and handled fairly.
Can a trader charge more than their quote?
They generally should not without your agreement, unless the work or the stated assumptions change. Keep everything in writing. For a specific dispute, get advice from Citizens Advice or a qualified adviser.
What if the price only says "price" or "total"?
Ask the trader to confirm in writing whether it is fixed. Do not rely on your own reading of an ambiguous document.
How long should a quote stay valid?
There is no single rule. Many traders give 30 days. A clear expiry date protects both of you if material prices move.
Compare the work, not just the word
ScopeCheck reads your quotes line by line and marks each item as included, excluded, optional, unclear or not mentioned. That makes open-ended lines and missing work easier to spot before you pay a deposit.
AI-assisted analysis can contain errors. Check the original quote wording and confirm the work, costs and VAT with your trader. Not legal, financial or surveying advice.