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Wallplas
Wallplas is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for your work.
"Loft conversion or dormer" - BL3, job posted 28/07/26
WWS Garage Doors & Shutters
WWS Garage Doors & Shutters is a trusted extension builder serving customers in BL1 and the surrounding area. Contact us to today to get a competit...
"Dormer loft conversion" - BL3, job posted 05/07/26
Fishers Building & Paving Ltd
Fishers Building & Paving Ltd is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for...
"Dormer loft conversion" - BOLTON, job posted 27/04/26
QUAYSTONE BUILDING LTD
QUAYSTONE BUILDING LTD are here to help customers who need an Extension Builder in BL1. We offer a competitive rate to complete all your extension ...
"Loft conversion" - BL3, job posted 27/04/26
CB BUILDING & JOINERY LTD
Need an Extension Builder in BL1? CB BUILDING & JOINERY LTD has been helping local clients (20 mile radius) with their extension buildering jobs fo...
"Loft conversion" - BOLTON, job posted 16/04/26
BRENCOLL BUILDING
BRENCOLL BUILDING is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for your work.<...
"Loft conversion" - BL4, job posted 16/02/26
Bolton Builders
Bolton Builders is an established and experienced local extension builder in BL1. Please contact us for a free, no obligation quote and competitive...
"RSJ installation" - BOLTON, job posted 23/11/25
PETER BALDWIN BUILDERS
PETER BALDWIN BUILDERS is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for your w...
"Loft conversion" - BOLTON, job posted 27/10/25
L D Debnam Building Services
L D Debnam Building Services is an established and experienced local extension builder in BL1. Please contact us for a free, no obligation quote an...
"Loft extension with dormer" - BL1, job posted 17/09/25
A AND S SCHOFIELD BLDRS LTD
Simon Schofield
A AND S SCHOFIELD BLDRS LTD is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for y...
"RSJ installation" - BOLTON, job posted 17/09/25
First Rate Home Builders
Come Home To Quality. First Rate Home Builders delivers quality construction in a professional manner. Servicing Bolton and the surrounding areas o...
"Convert garages to 3 or 2 bedroom ensuite semi detached house" - BL4, job posted 13/07/25
£29/hr
£211/day
Lostock Design & Build
Lostock Design & Build is an established and experienced local extension builder in BL1. Please contact us for a free, no obligation quote and comp...
"Two storey extension" - BOLTON, job posted 24/04/25
£36/hr
£260/day
Astley Bridge Building Services
Astley Bridge Building Services have been established since 1999 and offer quality building services to the public who are looking for a personal s...
"Two storey extension" - BOLTON, job posted 06/02/25
£31/hr
£217/day
Lostock Design & Build Limited
Lostock Design & Build Limited is an established and experienced local extension builder in BL1. Please contact us for a free, no obligation quote ...
"Loft conversion" - BOLTON, job posted 16/12/24
£32/hr
£233/day
URUZ Studio
We make immersive virtual experiences that transport people to real-life architecture projects in order to imagine the future.Architecture is portr...
"Loft dormer conversion" - BOLTON, job posted 30/11/24
Compare BL1 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Bolton | £31 | £219 |
| Extension Builders near Farnworth | £30 | £219 |
| Extension Builders near Horwich | £30 | £219 |
| Extension Builders near Westhoughton | £31 | £222 |
| Extension Builders near Little Hulton | £31 | £220 |
| Extension Builders near Atherton | £31 | £223 |
| Extension Builders near Radcliffe | £30 | £220 |
| Extension Builders near Bury | £30 | £219 |
| Extension Builders near Hindley | £30 | £219 |
| Extension Builders near Swinton | £32 | £234 |
Job estimates from extension builders near you
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.
Build a timber frame extension - £25,768
Garden office - £9,768
Granny annexe - £86,768
Build a flat roof extension - £21,768
Convert a Garage - £15,768
Hip to gable loft conversion - £41,768
Convert a bungalow loft - £28,768
Build a dormer loft conversion - £41,768
Build a swimming pool - £80,768
Build a Mansard loft conversion - £51,768
Concrete foundations - £6,018
Underpin a building - £17,268
Two storey extension - £87,652
Convert a basement - £34,890
Side return extension - £38,890
Loft conversion - £31,575
Garage - £18,268
Single storey extension - £50,360
Outbuilding - £9,768
Install an RSJ - £1,968
Build a kitchen extension - £41,768
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