Build a single storey extension in BT80 from £40,920

Single storey extension cost in BT80 - Sort by rates or availability

From £55,320
Get quotes

GMC Construction

(last active 30/09/26)

Need to find an Extension Builder near you for all your extension buildering work?

GMC Construction provides a local, trusted extension bui...

From £43,640
Get quotes

C McGurk Building Contractor

(last active 05/09/26)

We have over 25 years experience in all building work and renowned for good workmanship   All jobs small and large taken on 

From £53,080
Get quotes

FJS CONTRACTS LTD

(last active 05/09/26)

FJS CONTRACTS LTD are here to help customers who need an Extension Builder in BT80. We offer a competitive rate to complete all your extension buil...

From £55,320
Get quotes

Seamus Mcmullan building and joinery

(last active 30/08/26)

Seamus Mcmullan building and joinery is an established extension buildering business in BT80. We come highly recommended and provide competitive qu...

From £40,920
Get quotes

Oakmore Contracts

(last active 06/05/26)

Been in business as 18 years alway put clients first and never had any combacks 

From £50,680
Get quotes

JP&S Construction Ltd

JP&S Construction Ltd is an established extension buildering business in BT80. We come highly recommended and provide competitive quotes for your w...

From £45,720
Get quotes

Terry Design

Experienced extension builder ready to quote for your work. Terry Design is the best extension builder in BT80. No obligation free quotes and many ...

Get extension builder rates instantly

Estimates for common extension builder jobs in BT80;

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.

More extensions & conversions cost guides...