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Select your affordable NW7 extension builder
Ciaran Feeney
Need to find an Extension Builder near you for all your extension buildering work?
COMPLETE CIVIL ENGINEERING provides a local, trusted ext...
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...
Marcel Simion
Hi everyone!
i have good experience over 25 years working in construction and I have my on Business and my company
"I'm very happy for the job what his done" - LONDON,reviewed 29/09/17, SIMONA
Relax... you have found a reliable extension builder in NW7. Taylor Construction Services Ltd is a friendly and reliable company based in NW7 who c...
Trusted and professional extension builder in NW7. Experienced in all extension buildering work and keeping within budget and on quote. DS Construc...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
London, NW7
DBR Construction Ltd are here to help customers who need an Extension Builder in NW7. We offer a competitive rate to complete all your extension bu...
Fabio Capani
With over 24 years of hands-on experience, FC Builders London Ltd specialises in home extensions, loft conversions, full renovations, kitchen and b...
GUS DESIGNS LTD is a trusted extension builder serving customers in NW7 and the surrounding area. Contact us to today to get a competitive quote fo...
Need to find an Extension Builder near you for all your extension buildering work?
Fitz Building Services Limited provides a local, trusted...

Mansard loft conversions range from the cheapest installation of £51,408 (DBR Construction Ltd based in NW7) to the dearest of around £52,440 (COMPLETE CIVIL ENGINEERING based in HA8).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in NW7 by posting a job with HaMuch and we'll send it to extension builders in NW7.
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 - £17,562

Two storey extension - £88,092

Build a timber frame extension - £26,062

Build a swimming pool - £81,062

Single storey extension - £56,232

Side return extension - £42,193

Install an RSJ - £2,262

Outbuilding - £10,062

Build a Mansard loft conversion - £52,062

Loft conversion - £34,328

Build a kitchen extension - £42,062

Hip to gable loft conversion - £42,062

Granny annexe - £87,062

Garden office - £10,062

Convert a Garage - £16,062

Garage - £18,562

Build a flat roof extension - £22,062

Build a dormer loft conversion - £42,062

Concrete foundations - £6,312

Convert a bungalow loft - £29,062

Convert a basement - £38,193