Builder Expert

BEX AI estimating software

A fully detailed estimate in under 5 minutes

BEX AI builds your construction estimate broken down by every phase and task, priced with live UK rates, in minutes, not hours. Need a change? Just tell the AI assistant and it rewrites the quote for you. Or have our estimators prepare one from £90.

4.8

Rated 4.8 from 26 Google reviews

From £90

flat-fee basic estimate

Next day

basic estimate turnaround

10+ build types

covered by BEX AI

Real UK pricing

from hundreds of projects

Estimating services

Estimates prepared by professionals

Construction estimating isn't just about numbers, it's about clarity, confidence and control. Pick the level of detail your project needs.

£90 flat fee

Basic Estimate

Next working day

An itemised material and labour cost breakdown for extensions, lofts, refurbs and new builds, delivered as a branded PDF.

£110–£280

Detailed Estimate

5 working days

A complete stage-by-stage breakdown, from groundworks to finishing, with labour, materials and timelines for client-ready quotes.

£90 per hour

Tender & Custom Estimates

Scoped to your drawings

Estimates built from your tender documents or drawings for non-standard and complex residential projects.

All prices exclude VAT.

BEX AI estimating software

Detailed, branded quotes in minutes, not hours

Skip the spreadsheet marathon. Every quote comes with an AI estimator that knows UK construction.

  • AI-generated itemised quotes for 10+ UK build types
  • Line items priced against live UK construction data
  • Edit any quote in plain English, and totals recalculate automatically
  • Branded PDF export with your logo, VAT number and business details

How it works

From drawings to decision in three steps

  1. 1

    Tell us about the project

    Choose a service and send your drawings, specs or notes, or describe the job to BEX AI in your own words.

  2. 2

    Get an itemised estimate

    Materials, labour and stages broken down line by line, priced for the UK market, as a branded, exportable PDF.

  3. 3

    Quote with confidence

    Present a professional quote, protect your margin, and win the jobs that are worth winning.

What builders say

Rated 4.8 out of 5

26 Google reviews

Real reviews from UK builders, contractors and developers.

  • I'm using Builder Expert for the last couple of years and my experience with them is great. Estimates provided on time, great communication and well priced. Highly recommended!

    Arkadiusz Czakon

    Google review

  • Great service for construction quotation and app. Communication is always clear and fast. Delivery times are accurate and follow-up information is forthcoming. We will always recommend as an accurate, reliable service.

    Lauren Pryce

    Google review

  • Great service, super responsive, fast and reliable. Pricing very accurate. I highly recommend.

    TP London Construction Ltd

    Google review

  • I've been working with Builder Expert for over 7 years now and I am happy with the services they provide. I have done most of my projects by using this company to price my projects.

    Patryk Marcinkowski

    Google review

  • Quick to respond. Basic & Detailed Quotes. Always on time.

    PN

    Google review

  • Great service, super fast and accurate. Fantastic communication. Pricing spot on.

    Tomasz Pyzowski

    Google review

  • Their estimates are very detailed, and all my customers are happy with the quotes provided by them.

    Angjelin Hoti

    Google review

Ready to quote faster, plan smarter and protect your margin?

Talk to us about your next project, or see what BEX AI can build for you today.

See estimating prices · Call 020 3617 1286