Build a mansard loft conversion in St Austell from £51,784

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 £51,824

Last active Sep 26
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BUILDMARK BUILDERS

Relax... you have found a reliable extension builder in St Austell. BUILDMARK BUILDERS is a friendly and reliable company based in St Austell who c...

From £51,936

Last active Sep 26
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SANDSTONE BUILDERS T/A

SANDSTONE BUILDERS T/A is a trusted extension builder serving customers in St Austell and the surrounding area. Contact us to today to get a compet...

From £52,088

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DAVEY CONSTRUCTION LTD

Need an Extension Builder in St Austell? DAVEY CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering job...

From £51,784

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HAM & PEARCE CONSTRUCTION LTD

HAM & PEARCE CONSTRUCTION LTD is a trusted extension builder serving customers in St Austell and the surrounding area. Contact us to today to get a...

From £52,088

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Refresh Renovations Cornwall

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

From £52,104

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Refresh Renovations Cornwall

We are a part of the award-winning Refresh Renovation franchise network.Whether you want a simple bathroom remodel, or a large double storey extens...

From £52,064

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Probuild(cornwall) ltd

Probuild was set up as a platform to service clients with High End affordable quality Construction & project Management with solid advice & accurat...

From £52,104

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Paul Clarke Architectural Builders

Need an Extension Builder in St Austell? Paul Clarke Architectural Builders has been helping local clients (20 mile radius) with their extension bu...

From £51,840

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Aston Construction Project Management

Aston Construction Project Management is a trusted extension builder serving customers in St Austell and the surrounding area. Contact us to today ...

From £51,808

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Pendragon Builders Ltd

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

Pendragon Builders Ltd provides a local, trusted extensi...

Mansard loft conversion cost in St Austell

Estimates for build a mansard loft conversion near St Austell

Mansard loft conversions range from the cheapest installation of £51,784 (HAM & PEARCE CONSTRUCTION LTD based in PL23) to the dearest of around £52,104 (Refresh Renovations Cornwall based in PL25).

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


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Estimates for common extension builder jobs in St Austell;

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...