Get Your Free Builder's Estimate
Upload your drawings. Professional estimate in your inbox within 5 minutes.
💡 Best results with:
Floor plans • Elevations • Sections • Specs
Don't have all of these? No problem — we'll work with what you have.
What This Estimate Is For
Can I get a quick estimate for my extension before committing to detailed drawings?
Yes. If you already have drawings, Ashton Paul's quick estimate tool can provide an early itemised builder's estimate so you can sense-check the likely budget before moving into full specification and quote stages.
What information makes a quick estimate more reliable?
Floor plans, elevations, sections and specifications make a quick estimate more reliable because they show the proposed size, structure, layout and level of finish.
Is a quick estimate the same as a fixed builder quote?
No. A quick estimate is useful for early budget decisions, but a fixed builder quote should be based on complete drawings, building control detail and a specification of works.
For deeper guidance, read the extension cost guide and see how the Seven Step Process turns estimates into comparable builder quotes.
What You'll Receive
Itemised Estimate
Professional breakdown by trade section
Total Project Cost
Including materials, labour, and overheads
Free First Edit
Adjust region, margins, or rates at no cost
Powered by Ashton Paul — surveyors with 37 years experience