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Andy Harris
Andy Harris Construction is an established and experienced local extension builder in Kew. Please contact us for a free, no obligation quote and co...
Need to find an Extension Builder near you for all your extension buildering work?
Slick Construction Ltd provides a local, trusted extensi...
Building Vision London Ltd is a trusted extension builder serving customers in Kew and the surrounding area. Contact us to today to get a competiti...
Trusted and professional extension builder in Kew. Experienced in all extension buildering work and keeping within budget and on quote. TFC Constru...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
AG-Renovation Ltd is a trusted extension builder serving customers in Kew and the surrounding area. Contact us to today to get a competitive quote ...
At Ferdas Design & Build Ltd we have been fitting bespoke bathrooms since 2013. We pride ourselves on being the go-to bathroom fitters for discerni...
Tomasz Pedowicz
Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...
Elite Construction London Ltd
Elite Construction London Ltd has been one of the top providers of building and remodeling services in London for more than ten years.Our goal is ...

Mansard loft conversions range from the cheapest installation of £51,896 (Tota Builders based in TW2) to the dearest of around £52,504 (Ferdas Design & Build Ltd based in W3).
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 Kew by posting a job with HaMuch and we'll send it to extension builders in Kew.
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 - £17,724

Two storey extension - £88,336

Build a timber frame extension - £26,224

Build a swimming pool - £81,224

Single storey extension - £59,480

Side return extension - £44,020

Install an RSJ - £2,424

Outbuilding - £10,224

Build a Mansard loft conversion - £52,224

Loft conversion - £35,850

Build a kitchen extension - £42,224

Hip to gable loft conversion - £42,224

Granny annexe - £87,224

Garden office - £10,224

Convert a Garage - £16,224

Garage - £18,724

Build a flat roof extension - £22,224

Build a dormer loft conversion - £42,224

Concrete foundations - £6,474

Convert a bungalow loft - £29,224

Convert a basement - £40,020