Getting a quote from a builder can feel like reading a foreign language. Line items, provisional sums, day rates — it's easy to nod along and hope for the best. But understanding what you're looking at can save you thousands and a lot of stress.
Here's a no-nonsense guide to reading a builder's quote properly.
What should a quote actually include?
A decent quote should cover:
- A description of the work — not just "bathroom renovation" but the specific tasks involved (strip out, plumbing, tiling, etc.)
- Material costs — ideally broken down so you can see what you're paying for
- Labour costs — either as a fixed price per task or a day-rate estimate
- A total price — inclusive of VAT if the builder is VAT-registered
- A timeline — when the work starts and how long it should take
- Payment terms — when payments are due (avoid paying everything upfront)
VAT: included, excluded, or not stated?
VAT is one of the easiest ways to make a quote look cheaper than it really is.
- If the builder is VAT-registered, the quote should clearly say whether prices are inc VAT or + VAT.
- If they’re not VAT-registered, there’s no VAT to add — but it should still be clear.
- If the quote doesn’t say either way, treat that as a risk and ask for the total including VAT.
Fixed price vs. day rate
A fixed price quote means the builder commits to a total cost for the job. If it takes longer than expected, that's their problem, not yours.
A day rate quote means you're paying for time rather than output. This can work for small or unpredictable jobs, but it removes the incentive for the builder to work efficiently. Always ask for an estimate of how many days a day-rate job will take.
Red flags to watch for
Vague descriptions
If a line item just says "plastering" with no detail about which rooms or how many square metres, you've got a recipe for a dispute. Good quotes are specific.
No mention of waste removal
Skips, rubbish removal, and disposal of old materials cost money. If the quote doesn't mention them, ask whether they're included — or expect an awkward conversation later.
Unusually low totals
If a quote is significantly cheaper than others you've received, ask yourself why. It might mean the builder has missed items, is using cheaper materials, or is planning to charge extras as the job progresses.
No exclusions / assumptions section
A surprisingly common problem is a quote that looks tidy, but never states what’s not included. That’s how you end up arguing about basics (prep work, making good, disposal, who supplies materials).
Ask for a short list of exclusions/assumptions in writing. If they refuse, take that seriously.
No timeline or start date window
If you don’t know roughly when the job starts and how long it should take, you can’t plan around it — and you have less leverage if the job drifts.
No variation (change order) process
Even on a well-scoped job, something will change. A good quote explains how variations work:
- how extras are priced
- how they’re approved (ideally in writing)
- whether there’s a markup on materials
No payment schedule
Deposits are normal, but large upfront payments are risky. A good builder will break payments into stages tied to milestones — for example, 10% deposit, 40% at first fix, 40% at second fix, 10% on completion.
What to do before you sign
- Compare at least three quotes for the same scope of work
- Check that every quote covers the same items — one builder's "full bathroom refit" might not include the same work as another's
- Ask about provisional sums — these are placeholder costs for items not yet specified (e.g. tiles the homeowner hasn't chosen yet)
- Ask what allowance they’ve assumed (e.g. £/m² for tiles)
- Ask what happens if your choices cost more
- Ask whether there’s a markup on top of the difference
- Get everything in writing — verbal agreements are worth the paper they're written on
A simple rule that prevents most surprises: if you can’t point to where something is covered in the quote, assume it’s unclear — and ask before you sign.
FAQ
What’s the difference between a quote and an estimate?
A quote usually implies a fixed price for a defined scope. An estimate is a best guess that may change as the job progresses.
What is a provisional sum?
A provisional sum (or allowance) is a placeholder amount for something not fully specified yet. If the real cost is higher, you pay the difference (and sometimes a markup).
Should VAT be included in a builder’s quote?
If the builder is VAT-registered, the quote should clearly state whether it’s inc VAT or + VAT. If it isn’t stated, ask.
What deposit is normal for a builder?
There’s no single rule, but a modest deposit with milestone payments is generally safer than a large upfront payment.
How QuoteScope helps
Reading quotes takes time, and spotting gaps takes experience. QuoteScope analyses your quote and flags missing items, unclear scope, risky terms, and a price sanity check based on typical ranges (and the details you provide). You get a clear report card so you can negotiate from a position of knowledge.