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 9082 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 £31. Extension Builder rates vary with location. For example, NJD Joinery in Wrightington charges from £29 per hour.
When hiring Extension Builders in the UK get multiple quote to compare prices and services.
Trusted, recommended Extension Builders
J.T.Construction
J.T.Construction is a trusted extension builder serving customers in Great Sankey and the surrounding area. Contact us to today to get a competitiv...
"Two storey extension" - OLDHAM, job posted 25/02/26
Fixit Cheshire
Fixit Cheshire is an established and experienced local extension builder in Great Sankey. Please contact us for a free, no obligation quote and com...
"Flat roof extension" - LEEDS, job posted 25/02/26
WOODBINE BUILDING CONT LTD
Trusted and professional extension builder in Lymm. Experienced in all extension buildering work and keeping within budget and on quote. WOODBINE B...
"Dormer loft conversion" - L18, job posted 25/02/26
JOHN ROSS BUILDERS LTD
Need to find an Extension Builder near you for all your extension buildering work?
JOHN ROSS BUILDERS LTD provides a local, trusted extensi...
"Single storey kitchen extension within permitted development 3.5 metres in length max" - BB9, job posted 24/02/26
Warrington Builders
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"RSJ installation" - BELFAST, job posted 23/02/26
NJD Joinery
Need to find an Extension Builder near you for all your extension buildering work?
NJD Joinery provides a local, trusted extension builderi...
"Loft conversion" - CAMBRIDGE, job posted 23/02/26
KMC Brickwork
Need an Extension Builder in Rainford? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
"Full width dormer loft conversion with shower room for 3 bedroom edwardian terrace house" - TN34, job posted 22/02/26
G. Finnigan Builders
G. Finnigan Builders is an established extension buildering business in St Helens. We come highly recommended and provide competitive quotes for yo...
"Build a dormer loft conversion - 3 bed edwardian terrace with front and rear loft" - TN34, job posted 22/02/26
M L R Building Services
Mark Robinson
Trusted and professional extension builder in St helens. Experienced in all extension buildering work and keeping within budget and on quote. M L R...
"Single storey extension" - BELFAST, job posted 21/02/26
JCR Construction
Trusted and professional extension builder in Wrightington. Experienced in all extension buildering work and keeping within budget and on quote. JC...
"Granny annexe" - CLACTON-ON-SEA, job posted 21/02/26
from 70 to 80 of 9082
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.
