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Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Mario Prajar Building Services is an established and experienced local extension builder in Northolt. Please contact us for a free, no obligation q...
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
Northolt, UB5
Vital Builders are here to help customers who need an Extension Builder in Northolt. We offer a competitive rate to complete all your extension bui...
Relax... you have found a reliable extension builder in Northolt. C T Edwards is a friendly and reliable company based in Northolt who consider no ...
Northolt, UB5
Need to find an Extension Builder near you for all your extension buildering work?
J K GENERAL BUILDING LTD provides a local, trusted exten...
ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...
Hardeep Samra
MJ Builders (London) Ltd are here to help customers who need an Extension Builder in Northolt. We offer a competitive rate to complete all your ext...
Trusted and professional extension builder in Northolt. Experienced in all extension buildering work and keeping within budget and on quote. DC Bui...
Bill Matharu
Matharu Buildings is an established extension buildering business in Northolt. We come highly recommended and provide competitive quotes for your w...

Concrete foundations range from the £6,130 (MAX CONSTRUCTION LTD based in HA4) to £6,594 (C T Edwards based in HA4) in Northolt.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in Northolt by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
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.

Underpin a building - £17,634

Two storey extension - £88,200

Build a timber frame extension - £26,134

Build a swimming pool - £81,134

Single storey extension - £57,672

Side return extension - £43,003

Install an RSJ - £2,334

Outbuilding - £10,134

Build a Mansard loft conversion - £52,134

Loft conversion - £35,003

Build a kitchen extension - £42,134

Hip to gable loft conversion - £42,134

Granny annexe - £87,134

Garden office - £10,134

Convert a Garage - £16,134

Garage - £18,634

Build a flat roof extension - £22,134

Build a dormer loft conversion - £42,134

Concrete foundations - £6,384

Convert a bungalow loft - £29,134

Convert a basement - £39,003