Build a mansard loft conversion in Saltash from £51,480

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 £52,128

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Trevillion Property Services Ltd

Stephen Trevillion

Member since October 2026

Minor and major building works

From £51,712

Last active Nov 26
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Kiwi Construction

Patrick Rule

Trading since 1997 kitchens,bathrooms lofts patios roof work and much more

From £51,960

Last active Sep 26
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M D A BUILDERS

M D A BUILDERS is an established extension buildering business in Saltash. We come highly recommended and provide competitive quotes for your work...

From £51,480

Last active Sep 26
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Donovan Construction

Matthew Donovan

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

Donovan Construction provides a local, trusted extensio...

From £51,768

Last active Sep 26
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NCN Building & Maintenance Ltd

Need an Extension Builder in Saltash? NCN Building & Maintenance Ltd has been helping local clients (20 mile radius) with their extension builderin...

From £52,016

Last active Aug 26
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Bob Jones Installations

Rob Jones

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

From £52,112

Last active Jul 26
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GD ANDREW BUILDING CONTRACTORS

Relax... you have found a reliable extension builder in Saltash. GD ANDREW BUILDING CONTRACTORS is a friendly and reliable company based in Saltash...

From £51,880

Last active Jul 26
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M D C Building Services

Relax... you have found a reliable extension builder in Saltash. M D C Building Services is a friendly and reliable company based in Saltash who co...

From £51,824

Last active Mar 26
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A1 CONSTRUCTION & MAINTENCE

Need an Extension Builder in Saltash? A1 CONSTRUCTION & MAINTENCE has been helping local clients (20 mile radius) with their extension buildering ...

From £51,664

Last active Mar 26
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MJR Construction SW Ltd

Relax... you have found a reliable extension builder in Saltash. MJR Construction SW Ltd is a friendly and reliable company based in Saltash who co...

Mansard loft conversion cost in Saltash

Estimates for build a mansard loft conversion near Saltash

Mansard loft conversions range from the cheapest installation of £51,480 (Donovan Construction based in PL6) to the dearest of around £52,128 (Trevillion Property Services Ltd based in PL6).

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


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Estimates for common extension builder jobs in Saltash;

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...