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 £35. Extension Builder rates vary with location. For example, Premier Lofts in Sheffield charges from £33 per hour.
When hiring Extension Builders in the UK get multiple quote to compare prices and services.

Trusted, recommended Extension Builders
Gps building.com Ltd
Daniel Greathead
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Outbuilding" - HANWELL, job posted 03/06/24
Sunshine Builders Services
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion" - DUNMOW, job posted 03/06/24
Deadsmooth Plastering & Building Co
Deadsmooth Plastering & Building Co is a trusted extension builder serving customers in Gloucester and the surrounding area. Contact us to today to...
"Loft conversion" - TWICKENHAM, job posted 03/06/24
"Kitchen extension" - OL9, job posted 01/06/24
M C BUILDER (YORKSHIRE) LTD
M C BUILDER (YORKSHIRE) LTD is an established extension buildering business in Micklefield. We come highly recommended and provide competitive quot...
"Loft conversion with design on a two bedroom semi-detached house" - SHEFFIELD, job posted 30/05/24
MAX CONSTRUCTION LTD
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
"Single storey extension" - LETCHWORTH, job posted 30/05/24
OAKWOOD HOME SOLUTIONS
Kenny McMillan
OAKWOOD HOME SOLUTIONS is an established and experienced local extension builder in Dalkeith. Please contact us for a free, no obligation quote and...
"Loft conversion" - READING, job posted 30/05/24
RLC Construction
RLC Construction are here to help customers who need an Extension Builder in Rayners Lane. We offer a competitive rate to complete all your extensi...
"I’m looking to convert loft into a bedroom" - KINGSTON-UPON-HULL, job posted 29/05/24
Premier Lofts
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion" - ROCHDALE, job posted 29/05/24
Vital Builders
Vital Builders are here to help customers who need an Extension Builder in Northolt. We offer a competitive rate to complete all your extension bui...
"Extend to rear a 2 bed bungalow" - BT36, job posted 27/05/24
from 340 to 350 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.




















