The #1 Mistake UK Builders Make on Their Quotes (It’s Not the Price)

Most builders send a quote that looks like this:

Extension — £85,000

One line. And the client immediately thinks: “How did they get to that number? Can I trust this?”

We see this every week. It’s costing builders jobs — not because the price is wrong, but because the quote looks like a guess.

What a Professional QS Report Looks Like

  • ✅ Site preparation & enabling works — £2,400
  • ✅ Foundations & groundworks — £8,200
  • ✅ Frame & structural — £14,600
  • ✅ Roof structure — £9,800
  • ✅ External envelope — £11,200
  • ✅ First fix MEP — £7,400
  • ✅ Second fix & finishes — £18,600
  • ✅ Prelims & site management — £5,800
  • ✅ Contingency (10%) — £7,000
  • Total: £85,000

Same price. Completely different perception. The client sees a professional who’s thought it through — someone worth hiring.

Why Credibility Beats Price Every Time

In our experience working with hundreds of UK builders, the quote that wins isn’t always the cheapest — it’s the one that gives the client confidence.

A detailed, itemised report answers every question before it’s asked. Is this fair? What’s included? Can I trust this builder?

Send your plans to david@rapidqs.com — full QS report back in 48 hours.

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