Convert your basement in Belgravia from £37,230

Range from the cheapest Convert a basement £37,230 (A to Z Builders Ltd based in SW1P) to the dearest Convert a basement £63,600 (Reid and Co Developments Ltd based in NW8). To see prices and availability for your job click green button.

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From £39,570

Last active Nov 26
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QA's Pointing and Brick Repair

QA's Pointing Brick Repair

Relax... you have found a reliable extension builder in Belgravia. QA's Pointing and Brick Repair is a friendly and reliable company based in Belgr...

From £41,550

Last active Oct 26
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M & A UK Ltd

Relax... you have found a reliable extension builder in Belgravia. M & A UK Ltd is a friendly and reliable company based in Belgravia who consider ...

From £63,600

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 £41,100

Last active Sep 26
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D & G Building & Decorating

Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in Belgravia. No obligation f...

From £41,730

Last active Sep 26
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CK Constructions & Development Ltd

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

From £42,540

Last active Sep 26
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London Construction

London Construction is an established and experienced local extension builder in Belgravia. Please contact us for a free, no obligation quote and c...

From £37,230

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 Belgravia. We offer a competitive rate to complete all your extensi...

From £40,290

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 Belgravia. No obligation fre...

From £37,320

Last active Sep 26
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JK Doors

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

From £37,950

Last active Sep 26
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JM Building Services

JM Building Services is a trusted extension builder serving customers in Belgravia and the surrounding area. Contact us to today to get a competiti...

Cheapest builders to convert your basement in Belgravia

Estimates for convert a basement near Belgravia

Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.

What to do - Get rates and quotes for the cost to convert a basement in Belgravia by posting a job with HaMuch and we will send it to  extension builders in Belgravia.

"Basement conversion" - LAMBETH, job posted 05/02/25


Estimates for common extension builder jobs in Belgravia;

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...