Build a mansard loft conversion in SE4 from £51,880

Mansard loft conversions are ideal if you want to maximise the space in your home. Extending your roof out into a flat roof with an almost vertical wall, they almost always require planning permission but can add significant value to your home. To see prices and availability for your job click green button.

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From £52,056

Last active Oct 26
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The Perfectionist

Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE4. No obligation free quotes and m...

From £52,152

Last active Jan 26
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S G Painting Contractor Ltd

Relax... you have found a reliable extension builder in SE4. S G Painting Contractor Ltd is a friendly and reliable company based in SE4 who consid...

From £52,104

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South East Builders

Location

London, SE4

South East Builders are here to help customers who need an Extension Builder in SE4. We offer a competitive rate to complete all your extension bui...

From £52,248

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Baseline Build and Renovate Ltd

Baseline Build and Renovate Ltd is an established extension buildering business in SE4. We come highly recommended and provide competitive quotes f...

From £51,880

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FRIERN BUILDING LTD

FRIERN BUILDING LTD is an established extension buildering business in SE4. We come highly recommended and provide competitive quotes for your work...

From £52,272

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BERNARD CONSTRUCTION LTD

BERNARD CONSTRUCTION LTD are here to help customers who need an Extension Builder in SE4. We offer a competitive rate to complete all your extensio...

From £52,096

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S W BUILDPROVEMENT

Whether you are looking to build, extend or upgrade we will help. From building to decorating. Our professional team have the skills and experie...

From £52,384

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RM Building (London) Ltd

Trusted and professional extension builder in SE4. Experienced in all extension buildering work and keeping within budget and on quote. RM Building...

From £52,080

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CHRIS BALL & SON ROOFING LTD

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £52,312

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blitbolt ltd

Need to find an Extension Builder near you for all your extension buildering work?

blitbolt ltd provides a local, trusted extension builder...

Mansard loft conversion cost in SE4

Estimates for build a mansard loft conversion near SE4

Mansard loft conversions range from the cheapest installation of £51,880 (FRIERN BUILDING LTD based in SE22) to the dearest of around £52,384 (RM Building (London) Ltd based in SE23).

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 SE4 by posting a job with HaMuch and we'll send it to extension builders in SE4. 


Estimates for common extension builder jobs in SE4;

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.

More extensions & conversions cost guides...