Allerton two storey extensions from £87,472

A two storey extension is a great way to add extra space to your home, adding value to your property. But how much does it cost to build a double storey extension in Allerton? To see prices and availability for your job click green button.

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From £88,468

Rates verified Oct 26
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Jones Masonry Ltd

Lee Jones

Jones Masonry Ltd is a trusted extension builder serving customers in Allerton and the surrounding area. Contact us to today to get a competitive q...

From £88,048

Last active Nov 26
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C Wilcock Builders

C Wilcock Builders is an established extension buildering business in Allerton. We come highly recommended and provide competitive quotes for your ...

From £87,796

Last active Nov 26
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DAVID HARRISON BUILDING

Dave Harrison

DAVID HARRISON BUILDING are here to help customers who need an Extension Builder in Allerton. We offer a competitive rate to complete all your exte...

From £87,592

Last active Nov 26
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L J Robson (Contracts) Ltd

Experienced extension builder ready to quote for your work. L J Robson (Contracts) Ltd is the best extension builder in Allerton. No obligation fre...

From £87,472

Last active Nov 26
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Robbie Robinson

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

Robbie Robinson provides a local, trusted extension buil...

From £87,928

Last active Nov 26
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MEP Building Services

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

MEP Building Services provides a local, trusted extensio...

From £88,012

Last active Nov 26
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RG Decorators

Robert Gladwin

RG Decorators is an established and experienced local extension builder in Allerton. Please contact us for a free, no obligation quote and competit...

From £87,508

Last active Nov 26
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Benchmark Builders

Benchmark Builders is a trusted extension builder serving customers in Allerton and the surrounding area. Contact us to today to get a competitive ...

From £87,844

Last active Nov 26
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LRS Maintenance & Property Renovators

Need an Extension Builder in Allerton? LRS Maintenance & Property Renovators has been helping local clients (20 mile radius) with their extension b...

From £88,012

Last active Nov 26
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MS General

Relax... you have found a reliable extension builder in Allerton. MS General is a friendly and reliable company based in Allerton who consider no j...

Cost of a two storey extension in Allerton

Estimates for two storey extension near Allerton

Costs range from £87,472 (Robbie Robinson based in HX2) to £88,468 (Jones Masonry Ltd based in BD19), but these are just estimates. The best way to compare costs is to get real quotes from real builders.

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"Two storey extension" - BRADFORD, job posted 06/05/25

"Two storey extension or loft conversion" - BD2, job posted 02/12/26


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Estimates for common extension builder jobs in Allerton;

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...