Build a mansard loft conversion in Botany Bay from £51,872

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 £51,976

Last active Oct 26
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DW Building

DW Building is a trusted extension builder serving customers in Botany Bay and the surrounding area. Contact us to today to get a competitive quote...

From £51,872

Last active Oct 26
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Colin Lynch Builders

Need an Extension Builder in Botany Bay? Colin Lynch Builders has been helping local clients (10 mile radius) with their extension buildering jobs ...

From £52,056

Last active Oct 26
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Wittick Building Ltd

Wittick Building Ltd is a trusted extension builder serving customers in Botany Bay and the surrounding area. Contact us to today to get a competit...

From £52,432

Last active Oct 26
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MM-Builders

Shelim Miah

Maintenance and repair 

Family run business from 2006

 

 

From £52,208

Last active Sep 26
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Roni Lofts Conversions Ltd

Need an Extension Builder in Botany Bay? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension buildering...

From £51,960

Last active Jul 26
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The00Company Ltd

Homeowners look no further if you want a qualified extension builder to work in your home. The00Company Ltd are tidy and neat, providing a quality ...

From £52,392

Last active Jun 26
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Home Projects

Relax... you have found a reliable extension builder in Botany Bay. Home Projects is a friendly and reliable company based in Botany Bay who consid...

From £52,312

Last active Mar 26
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R & I Builders

R & I Builders is an established extension buildering business in Botany Bay. We come highly recommended and provide competitive quotes for your wo...

From £52,352

Last active Mar 26
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EVS ARCHITECTURE & CONSTRUCTION LTD

HOW WE WORK?We are here to design the best places!Our experience includes projects all over the world, from small scaled projects to large resident...

From £52,432

Last active Mar 26
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AGK Building Services Ltd

AGK Building Services Ltd is a small family-run business with more than 20 years' experience in the building services industry. We have a team of d...

Mansard loft conversion cost in Botany Bay

Estimates for build a mansard loft conversion near Botany Bay

Mansard loft conversions range from the cheapest installation of £51,872 (Colin Lynch Builders based in EN3) to the dearest of around £52,432 (MM-Builders based in N9).

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


Estimates for common extension builder jobs in Botany Bay;

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...