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JJSR Construction Ltd
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Stanmore. Please contact us for a free, no obligation quote and ...
"Two storey extension" - HA7, job posted 13/01/25
COMPLETE CIVIL ENGINEERING
Ciaran Feeney
Need to find an Extension Builder near you for all your extension buildering work?
COMPLETE CIVIL ENGINEERING provides a local, trusted ext...
Chrysalis
Chrysalis are here to help customers who need an Extension Builder in Stanmore. We offer a competitive rate to complete all your extension builderi...
PERFORMA CONSTRUCTION LIMITED
Relax... you have found a reliable extension builder in Stanmore. PERFORMA CONSTRUCTION LIMITED is a friendly and reliable company based in Stanmor...
Volton Building & Paving
Volton Building & Paving is a trusted extension builder serving customers in Stanmore and the surrounding area. Contact us to today to get a compet...
Platinum Premier Projects & Premier Electrics
Stanmore, HA7
Platinum Electrics is a Branch off Platinum Premier Projects who deal in all types of construction projects. Platinum Electrics are based in London...
Crest Construction and Interiors Ltd
Ashley Payravi
At crest construction we work extremely hard to ensure that our clients receive a quality of service that continues to build our reputation. Client...
BR Building Services Limited
Stanmore, HA7
BR Building Services Limited is a trusted extension builder serving customers in Stanmore and the surrounding area. Contact us to today to get a co...
A D C BUILDERS
Trusted and professional extension builder in Stanmore. Experienced in all extension buildering work and keeping within budget and on quote. A D C ...
EUROCONTRACTOR LIMITED
Karsan Dabasia
Trusted and professional extension builder in Stanmore. Experienced in all extension buildering work and keeping within budget and on quote. EUROCO...
Marku Builders Ltd
Marku Builders Ltd is an established extension buildering business in Stanmore. We come highly recommended and provide competitive quotes for your ...
GUS DESIGNS LTD
GUS DESIGNS LTD is a trusted extension builder serving customers in Stanmore and the surrounding area. Contact us to today to get a competitive quo...
EDGWARE BUILDER
EDGWARE BUILDER are here to help customers who need an Extension Builder in Stanmore. We offer a competitive rate to complete all your extension bu...
Eternal Design and Build Ltd
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Fitz Building Services Limited
Need to find an Extension Builder near you for all your extension buildering work?
Fitz Building Services Limited provides a local, trusted...
O DAMIEAN BUILDING SERVICES
Stanmore, HA7
Experienced extension builder ready to quote for your work. O DAMIEAN BUILDING SERVICES is the best extension builder in Stanmore. No obligation fr...
BUILDING SERVICES (UK) LTD
Experienced extension builder ready to quote for your work. BUILDING SERVICES (UK) LTD is the best extension builder in Stanmore. No obligation fre...
Eddybuild Contractors Ltd
Eddybuild Contractors Ltd is an established and experienced local extension builder in Stanmore. Please contact us for a free, no obligation quote ...
PANCON CONSTRUCTION LIMITED
Relax... you have found a reliable extension builder in Stanmore. PANCON CONSTRUCTION LIMITED is a friendly and reliable company based in Stanmore ...
AT Contractors
Relax... you have found a reliable extension builder in Stanmore. AT Contractors is a friendly and reliable company based in Stanmore who consider ...
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- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Stanmore. 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 Stanmore 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 - £26,224

Garden office - £10,224

Granny annexe - £87,224

Build a flat roof extension - £22,224

Convert a Garage - £16,224

Hip to gable loft conversion - £42,224

Convert a bungalow loft - £29,224

Build a dormer loft conversion - £42,224

Build a swimming pool - £81,224

Build a Mansard loft conversion - £52,224

Concrete foundations - £6,474

Underpin a building - £17,724

Two storey extension - £88,336

Convert a basement - £40,020

Side return extension - £44,020

Loft conversion - £35,850

Garage - £18,724

Single storey extension - £59,480

Outbuilding - £10,224

Install an RSJ - £2,424

Build a kitchen extension - £42,224
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