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T K O Kitchens & Construction
Homeowners look no further if you want a qualified extension builder to work in your home. T K O Kitchens & Construction are tidy and neat, providi...
"Install an RSJ" - M27, job posted 02/09/26
J.Stokes Builders
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion or dormer" - BL3, job posted 28/07/26
G P GILMORE JOINERY T/A
G P GILMORE JOINERY T/A is an established extension buildering business in Walkden. We come highly recommended and provide competitive quotes for...
"Dormer loft conversion" - BL3, job posted 05/07/26
Brookmeade Building
Brookmeade Building is an established extension buildering business in Walkden. We come highly recommended and provide competitive quotes for your ...
"Dormer loft conversion" - BOLTON, job posted 27/04/26
SMH Build & Renovate
SMH Build & Renovate is an established extension buildering business in Walkden. We come highly recommended and provide competitive quotes for your...
"Loft conversion" - BL3, job posted 27/04/26
Amak Construction
Amak Construction is an established and experienced local extension builder in Walkden. Please contact us for a free, no obligation quote and compe...
"Loft conversion" - BOLTON, job posted 16/04/26
Advanced Builders & Roofers
Experienced extension builder ready to quote for your work. Advanced Builders & Roofers is the best extension builder in Walkden. No obligation fre...
"Loft conversion" - BL4, job posted 16/02/26
David Anderson Builders
Walkden, M28
Relax... you have found a reliable extension builder in Walkden. David Anderson Builders is a friendly and reliable company based in Walkden who co...
"RSJ installation" - BOLTON, job posted 23/11/25
DC Contractors
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...
"Loft conversion" - BOLTON, job posted 27/10/25
ESBP Specialists Ltd
Jonathan
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...
"RSJ installation" - BOLTON, job posted 17/09/25
J & C Barker (Builders) Limited
Need to find an Extension Builder near you for all your extension buildering work?
J & C Barker (Builders) Limited provides a local, truste...
"Side return extension" - M45, job posted 07/09/25
Wallplas
Wallplas is an established extension buildering business in Walkden. We come highly recommended and provide competitive quotes for your work.
"Convert garages to 3 or 2 bedroom ensuite semi detached house" - BL4, job posted 13/07/25
WWS Garage Doors & Shutters
WWS Garage Doors & Shutters is a trusted extension builder serving customers in Walkden and the surrounding area. Contact us to today to get a comp...
"Two storey extension" - BOLTON, job posted 24/04/25
Fishers Building & Paving Ltd
Fishers Building & Paving Ltd is an established extension buildering business in Walkden. We come highly recommended and provide competitive quotes...
"Two storey extension" - BOLTON, job posted 06/02/25
RC Building Services Ltd
Here at RC Building Services Ltd we pride ourselves on providing reliable, excellent quality and competitively priced building services. Our priori...
"Loft conversion" - BOLTON, job posted 16/12/24
QUAYSTONE BUILDING LTD
QUAYSTONE BUILDING LTD are here to help customers who need an Extension Builder in Walkden. We offer a competitive rate to complete all your extens...
"Loft dormer conversion" - BOLTON, job posted 30/11/24
CB BUILDING & JOINERY LTD
Need an Extension Builder in Walkden? CB BUILDING & JOINERY LTD has been helping local clients (20 mile radius) with their extension buildering job...
"Loft conversion" - BOLTON, job posted 22/07/24
BRENCOLL BUILDING
BRENCOLL BUILDING is an established extension buildering business in Walkden. We come highly recommended and provide competitive quotes for your wo...
"Hip to gable loft conversion" - M27, job posted 13/06/24
Mike's Home Improvements
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Basement conversion" - BOLTON, job posted 26/03/24
Bolton Builders
Bolton Builders is an established and experienced local extension builder in Walkden. Please contact us for a free, no obligation quote and competi...
"Loft conversion 1930s semi" - M28, job posted 21/03/24
Compare Walkden extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Little Hulton | £31 | £220 |
| Extension Builders near Farnworth | £30 | £219 |
| Extension Builders near Swinton | £32 | £234 |
| Extension Builders near Eccles | £32 | £236 |
| Extension Builders near Atherton | £31 | £223 |
| Extension Builders near Radcliffe | £30 | £220 |
| Extension Builders near Bolton | £31 | £219 |
| Extension Builders near Urmston | £32 | £237 |
| Extension Builders near Salford | £32 | £237 |
| Extension Builders near Whitefield | £31 | £229 |
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 - £25,808

Garden office - £9,808

Granny annexe - £86,808

Build a flat roof extension - £21,808

Convert a Garage - £15,808

Hip to gable loft conversion - £41,808

Convert a bungalow loft - £28,808

Build a dormer loft conversion - £41,808

Build a swimming pool - £80,808

Build a Mansard loft conversion - £51,808

Concrete foundations - £6,058

Underpin a building - £17,308

Two storey extension - £87,712

Convert a basement - £35,340

Side return extension - £39,340

Loft conversion - £31,950

Garage - £18,308

Single storey extension - £51,160

Outbuilding - £9,808

Install an RSJ - £2,008

Build a kitchen extension - £41,808
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