Agreeing the job · Guide · For homeowners
Quote or estimate: what is the difference?
You receive two prices for the same extension.
One says Quotation: £82,000. The other says Estimate: £74,000.
It is tempting to treat the first as expensive but certain, and the second as cheaper but flexible. That may be wrong in both directions. The quote might contain allowances and exclusions. The estimate might contain firm rates for most of the work.
The useful question is not only:
Which total is lower?
It is:
What does each total include, what remains uncertain, and how will the final price be determined?
The ordinary difference
A quote usually presents a price offered for defined work on stated terms. An estimate usually presents a forecast where the final price cannot yet be calculated precisely.
That distinction is useful, but the heading is not enough. The complete document matters, including:
- the scope;
- exclusions;
- assumptions;
- product allowances;
- provisional work;
- rates;
- VAT;
- drawing revisions;
- payment stages;
- validity period;
- change process.
A quote can legitimately contain variable elements if they are identified clearly. An estimate should still explain how it was formed and what could cause it to change.
Why the total can mislead
Consider two kitchen proposals.
Proposal A: £31,000
- cabinetry included;
- installation included;
- worktops allowed at £2,500;
- appliances excluded;
- electrical work estimated after first-fix survey;
- VAT included.
Proposal B: £27,500
- cabinetry and installation included;
- worktops and appliances described only as standard;
- electrical work not mentioned;
- VAT position unclear.
Proposal B is not necessarily cheaper. It is less complete. Comparing totals without comparing their basis creates false certainty.
A price document should expose uncertainty
Uncertainty is not automatically a warning sign. Building work genuinely contains unknowns. Existing walls, drainage, structural conditions and product choices may not be fully known at quotation stage.
The problem is hidden uncertainty.
A good proposal separates:
- work priced as a defined amount;
- work priced by rate or measured quantity;
- product allowances awaiting selection;
- provisional work awaiting information;
- excluded work;
- conditions that would require a later change.
That gives you something you can actually decide.
What should you ask before accepting?
- 1Is this a quote, estimate, budget indication or schedule of rates?
- 2Which parts of the price are intended to be fixed?
- 3Which parts may change?
- 4What assumptions were made about the site and existing work?
- 5What is excluded?
- 6Which drawings and specification were used?
- 7Is VAT included where applicable?
- 8Are allowances realistic for the products I expect to choose?
- 9What information is still missing?
- 10How will a price change be proposed and agreed?
The legal position is more careful than the slogan
People often say that a quote is binding and an estimate is not. That is too simple to use as a universal rule.
In consumer work, information given about the service may form part of the contract in some circumstances. Where the price or calculation method is not determined, consumer law may require a reasonable price. The complete agreement, not only the heading, matters.
If the legal effect of a price is disputed, obtain advice on the particular facts.
What happens inside Assurr
Assurr keeps the source price document beside the project structure created from it. The trade reviews the interpreted scope, price components, assumptions and exclusions before the customer is asked to accept the plan.
That does not make Assurr the author of the quote or the judge of its legal effect. It gives both parties a shared place to see what the project price is based on and to record revisions before work starts.
Quick check
Do not accept the bottom-line figure until you can explain:
- what work it buys
- what it does not buy
- what remains uncertain
- how uncertainty becomes an agreed price later
The clearest price is not necessarily the lowest or the most fixed. It is the one whose certainty and uncertainty are both visible.