Build a mansard loft conversion in Hillingdon 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 £52,312

Last active Nov 26
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T M Builder

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

From £51,880

Last active Oct 26
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MAX CONSTRUCTION LTD

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

MAX CONSTRUCTION LTD provides a local, trusted extension...

From £52,344

Last active Oct 26
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C T Edwards

Relax... you have found a reliable extension builder in Hillingdon. C T Edwards is a friendly and reliable company based in Hillingdon who consider...

From £52,000

Last active Oct 26
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ALG Renovations

ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...

From £52,096

Last active Oct 26
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Matharu Buildings

Bill Matharu

Matharu Buildings is an established extension buildering business in Hillingdon. We come highly recommended and provide competitive quotes for your...

From £51,944

Last active Sep 26
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Ava Constructions & Decors Ltd

Need an Extension Builder in Hillingdon? Ava Constructions & Decors Ltd has been helping local clients (10 mile radius) with their extension builde...

From £52,304

Last active Sep 26
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Greenline Construction

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

From £52,432

Last active Sep 26
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GMB BUILDING SERVICES

GMB BUILDING SERVICES is an established and experienced local extension builder in Hillingdon. Please contact us for a free, no obligation quote an...

From £52,392

Last active Sep 26
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Sheppard Construction Ltd

Sheppard Construction Ltd is a trusted extension builder serving customers in Hillingdon and the surrounding area. Contact us to today to get a com...

From £51,936

Last active Aug 26
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Ideal Construction

Ideal Construction is an established extension buildering business in Hillingdon. We come highly recommended and provide competitive quotes for you...

Mansard loft conversion cost in Hillingdon

Estimates for build a mansard loft conversion near Hillingdon

Mansard loft conversions range from the cheapest installation of £51,880 (MAX CONSTRUCTION LTD based in HA4) to the dearest of around £52,432 (GMB BUILDING SERVICES based in UB8).

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


Estimates for common extension builder jobs in Hillingdon;

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...