Build a mansard loft conversion in High Holborn from £51,976

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 £52,024

Last active Nov 26
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SH Enterprise

Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...

From £51,976

Last active Nov 26
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SLS BUILDERS LIMITED

SLS BUILDERS LIMITED is a trusted extension builder serving customers in High Holborn and the surrounding area. Contact us to today to get a compet...

From £52,192

Last active Oct 26

1 review

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Torrington

Torrington Design

NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...

"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO

From £52,208

Last active Oct 26
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Thermodynamic Building Services Ltd

Trusted and professional extension builder in High Holborn. Experienced in all extension buildering work and keeping within budget and on quote. Th...

From £54,320

Last active Oct 26
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Reid and Co Developments Ltd

Jay Reid

We are a well established buildng firm who have been providing building services and managing of projects now for 25 years. We have all the necessary ...

From £52,184

Last active Sep 26
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First guard Roofing

Darren Bergin

Relax... you have found a reliable extension builder in High Holborn. First guard Roofing is a friendly and reliable company based in High Holborn ...

From £52,376

Last active Sep 26
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CK Constructions & Development Ltd

CK Constructions & Development Ltd is a trusted extension builder serving customers in High Holborn and the surrounding area. Contact us to today t...

From £51,976

Last active Sep 26
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A to Z Builders Ltd

A to Z Builders Ltd are here to help customers who need an Extension Builder in High Holborn. We offer a competitive rate to complete all your exte...

From £52,248

Last active Sep 26
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Cornerstones Construction

Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in High Holborn. No obligation ...

From £51,984

Last active Sep 26
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JK Doors

JK Doors is a trusted extension builder serving customers in High Holborn and the surrounding area. Contact us to today to get a competitive quote ...

Mansard loft conversion cost in High Holborn

Estimates for build a mansard loft conversion near High Holborn

Mansard loft conversions range from the cheapest installation of £51,976 (SLS BUILDERS LIMITED based in NW5) to the dearest of around £54,320 (Reid and Co Developments Ltd based in NW8).

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


Estimates for common extension builder jobs in High Holborn;

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...