Find affordable extension builders
- Trusted, recommended Extension Builders
- Prices for extension builders in the UK
- Find a local builder who can convert your loft or build a side return extension at a great price
- Find out how much extension builder jobs cost
| Low | Average | High |
|---|---|---|
| £13 | £34 | £68 |
| Average hourly rate of 9078 extension builders in the UK excluding VAT or callout charge | ||
Extension Builders in the UK. The average hourly rate of the 10 Extension Builders listed is £40. Extension Builder rates vary with location. For example, Image Design & Consultants in Heston charges from £44 per hour.
When hiring Extension Builders in the UK get multiple quote to compare prices and services.

Trusted, recommended Extension Builders
Proper Copper Design
Proper Copper DesignWe are a design lead copper homeware company specializing in contemporary handles, taps, showers and accessories. Our products ...
"Loft conversion" - LEICESTER, job posted 12/09/24
Evergreen Developments Nw Ltd
Looking for an Extension Builder near Southport for all your extension buildering jobs?
Evergreen Developments Nw Ltd...
"Loft conversion" - LEICES, job posted 12/09/24
Red Box Maintenance Ltd
Red Box are a Fulham-based building and decorating business who work in West and Southwest London, and who specialise in fine interior renovations,...
"Single storey extension" - PETERBOROUGH, job posted 11/09/24
KDS Building Services
Trusted and professional extension builder in Stoke Gifford. Experienced in all extension buildering work and keeping within budget and on quote. K...
"Loft conversion" - SOUTHEND-ON-SEA, job posted 11/09/24
Mjharrison
Mark Harrison
From decorating, flat pacassembly, wet rooms, studwalls, doors frames, skirts,arcs, windows kitchens etc
"Garage conversion" - TELFORD, job posted 11/09/24
TFC Construction
Trusted and professional extension builder in Richmond. Experienced in all extension buildering work and keeping within budget and on quote. TFC Co...
"RSJ installation and knock through" - B76, job posted 10/09/24
Hawaii Ltd
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Hi there, I'm looking for an estimation of a retaining wall between 2 properties. Is around 20 m long. Please get in touch to visit the property for an accurate estimation. Thanks" - BT14, job posted 09/09/24
Image Design & Consultants
Image Design & Consultants is a trusted extension builder serving customers in Heston and the surrounding area. Contact us to today to get a compet...
"Loft conversion" - NORTH TYNESIDE, job posted 09/09/24
Tota Builders
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion" - CARDIFF, job posted 08/09/24
Sharp Building Ltd
Sharp Building Ltd is an established and experienced local extension builder in Watford. Please contact us for a free, no obligation quote and comp...
"Single storey extension" - LEEDS, job posted 07/09/24
from 300 to 310 of 9078
Find out how much extension builder jobs cost
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.




















