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 | £86 |
| Average hourly rate of 9110 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 £33. Extension Builder rates vary with location. For example, T M Builder in Yeading charges from £46 per hour.
When hiring Extension Builders in the UK get multiple quote to compare prices and services.
Trusted, recommended Extension Builders
B.A Plastering & Property Maintenance
£31/hour
£244/day
Trusted and professional extension builder in Coventry. Experienced in all extension buildering work and keeping within budget and on quote. B.A Pl...
"Single storey extension side extention with bathroom and two velux windows 5mx3.2m single story rear extention for dinner 2.6m x 3.5 m" - HP11, job posted 18/07/26
Royle Interiors Ltd
£32/hour
£238/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"RSJ installation" - DY3, job posted 18/07/26
Aquatec Builder
£20/hour
£120/day
Member since November 2019
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"RSJ installation" - , job posted 18/07/26
DC Build & Pave
£45/hour
£285/day
Trusted and professional extension builder in 8 Spoonbill Way, Hayes, Middlesex. Experienced in all extension buildering work and keeping within bu...
"Single storey extension" - SN2, job posted 17/07/26
T M Builder
£46/hour
£289/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Single storey extension" - COULSDON, job posted 17/07/26
Magnoli Home
£17/hour
£165/day
MAGNOLIA HOME is family run,Tunbridge Wells based building company,.With years expirence,you as the customer can be assured that you are in safe ha...
"Loft conversion" - , job posted 17/07/26
"Loft conversion" - LUTON, job posted 15/07/26
Aviemore Building Contractors Ltd
£45/hour
£287/day
Experienced extension builder ready to quote for your work. Aviemore Building Contractors Ltd is the best extension builder in Beckenham. No obliga...
"Loft conversion" - WV6, job posted 14/07/26
QC11 LTD
£31/hour
£244/day
QC11 LTD are here to help customers who need an Extension Builder in Croydon. We offer a competitive rate to complete all your extension buildering...
"Side and rear extension" - EX23, job posted 14/07/26
SMC Property Maintenance
£37/hour
£237/day
Relax... you have found a reliable extension builder in Croydon. SMC Property Maintenance is a friendly and reliable company based in Croydon who c...
"Extension to chalet bungalow/ inc dormer and whole house renovation in Fakenham" - NR21, job posted 13/07/26
from 20 to 30 of 9110
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.
