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J Pellow & Son Ltd
J Pellow & Son Ltd are here to help customers who need an Extension Builder in WD5. We offer a competitive rate to complete all your extension buil...
£55/hr
£305/day
Evolved Glazing Solutions Limited
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£47/hr
£302/day
M DUNNE BUILDER
M DUNNE BUILDER is a trusted extension builder serving customers in WD5 and the surrounding area. Contact us to today to get a competitive quote fo...
£40/hr
£258/day
Total Refurbishment & Build
Trusted and professional extension builder in WD5. Experienced in all extension buildering work and keeping within budget and on quote. Total Refur...
£41/hr
£261/day
PM HOBBS BUILDING SERVICES
Abbots Langley, WD5
Need an Extension Builder in WD5? PM HOBBS BUILDING SERVICES has been helping local clients (10 mile radius) with their extension buildering jobs f...
£46/hr
£296/day
S P B Watford Limited
Approved extension builder in WD5, covering 10 miles.
Whatever extension buildering work you need, including emergency repairs, hire a compe...
£48/hr
£305/day
Rob Higgs Building & Carpentry
Hertfordshire, WD5
Need to find an Extension Builder near you for all your extension buildering work?
Rob Higgs Building & Carpentry provides a local, trusted...
£44/hr
£269/day
Evolution Building and Developments Ltd
Approved extension builder in WD5, covering 10 miles.
Whatever extension buildering work you need, including emergency repairs, hire a compe...
Quickly find an Extension Builder in WD5
Use these steps to find Extension Builders in WD5 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in WD5. We’ll notify you via text or email when an Extension Builder is available to quote.
- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local WD5 Extension Builders or phone them directly - you’re in control!
Local Extension Builders in London Boroughs
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 - £26,264

Garden office - £10,264

Granny annexe - £87,264

Build a flat roof extension - £22,264

Convert a Garage - £16,264

Hip to gable loft conversion - £42,264

Convert a bungalow loft - £29,264

Build a dormer loft conversion - £42,264

Build a swimming pool - £81,264

Build a Mansard loft conversion - £52,264

Concrete foundations - £6,514

Underpin a building - £17,764

Two storey extension - £88,396

Convert a basement - £40,470

Side return extension - £44,470

Loft conversion - £36,225

Garage - £18,764

Single storey extension - £60,280

Outbuilding - £10,264

Install an RSJ - £2,464

Build a kitchen extension - £42,264
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