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 9080 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, Fox Windows & Doors Ltd in Warwickshire charges from £27 per hour.
When hiring Extension Builders in the UK get multiple quote to compare prices and services.

Trusted, recommended Extension Builders
DJG Gibbs
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion" - KINGSTON-UPON-HULL, job posted 27/08/24
Mucha Construcion
Need an Extension Builder in Brentry? Mucha Construcion has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
"I need a quote for RSJ installation under the chimney breast in living room" - S73, job posted 26/08/24
Hayes Landscapes
Trusted and professional extension builder in Bournemouth. Experienced in all extension buildering work and keeping within budget and on quote. Hay...
"Two bedroom and a bathroom dormer loft conversion" - BIRMINGHAM, job posted 25/08/24
Sean W Scott General Builder
Sean Scott
We are a family business providing a one stop shop to meet all your building and renervation needs
"Loft conversion Hello, I am interested/looking into a loft conversion. Would like a room + bathroom. Would like to see if its possible with current space and how much it would cost, aswell as a time estimate of completion. Thanks" - LUTON, job posted 24/08/24
MBuilding
Mariusz Mika
MBuilding are here to help customers who need an Extension Builder in Aldwick. We offer a competitive rate to complete all your extension builderin...
"Single story extension , single room with loft and bathroom width of house and 3-4 depth for studio for in law" - TQ1, job posted 24/08/24
"I need to repair bays as its crumbling I don't know how to describe if you come and see what I mean. Avtar" - E12, job posted 24/08/24
G P H BUILDERS LTD
Gareth Higgins
Been in the building trade for over 30years .have in that time worked all over the country on many different projects.
Have city &...
"Single storey Kitchen extension 4-6m" - DA1, job posted 24/08/24
Fox Windows & Doors Ltd
At Fox, we offer a fantastic collection of products for you to choose from including a range of double-glazed windows (available in aluminium and u...
"Loft conversion looking for quotes for a loft conversion to include stairs, x2 bedrooms, storage and potentially a bathroom" - BEDFORDSHIRE, job posted 23/08/24
JD PLANT GRDWRK SPECIALIST LTD
James Davis
J D Plant Groundwork is a well established construction company providing value-added engineering, construction and service skills to customers for...
"3 meters wall weight bearing taken off and put steel" - B20, job posted 23/08/24
B S V CONSTRUCTION SER LTD
Paul Frost
Need to find an Extension Builder near you for all your extension buildering work?
B S V CONSTRUCTION SER LTD provides a local, trusted ext...
"Single storey extension" - IP25, job posted 22/08/24
from 310 to 320 of 9080
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.




















