Convert your basement in South Norwood from £37,320

Range from the cheapest Convert a basement £37,320 (RCB Group Design & Build based in SE21) to the dearest Convert a basement £51,000 (Banga Decoration based in CR7). To see prices and availability for your job click green button.

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From £38,040

Rates verified Sep 26
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J&J Building Solutions

Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in South Norwood. No obligation fr...

From £39,120

Last active Nov 26
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Greens Gardening & Landscape Property Maintenance

John Mcdonagh

Watch our short video highlighting all our expertise and services here:

more than 10 y...

From £51,000

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Banga Decoration

Sebastian Banga

Member since August 2025

Banga decoration. Is Base in south London  for number of year  Banga decoration is a small  company. Wich provide an excellent job to the custom...

From £49,020

Last active Nov 26
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Buci builders ltd

Robert Buci

Buci builders ltd is a trusted extension builder serving customers in South Norwood and the surrounding area. Contact us to today to get a competit...

From £37,410

Last active Oct 26
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Cre8tive Contractors Ltd

Cre8tive Contractors Ltd are here to help customers who need an Extension Builder in South Norwood. We offer a competitive rate to complete all you...

From £37,320

Last active Oct 26

2 reviews

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RCB Group Design & Build

Vasi J

No Call out charges! 

All Jobs Fully Insured and Guaranteed !!!

All aspects of Plumbing, Heating and Drains....

...

"I am very pleased with the work carried out. All very clear and transparent." - ROMFORD,reviewed 10/01/18, KELLY

From £37,950

Last active Oct 26
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PW Construction & Renovation Ltd

PW Construction & Renovation Ltd is a trusted extension builder serving customers in South Norwood and the surrounding area. Contact us to today to...

From £41,370

Last active Oct 26
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Glenn Miller Builders Limited

Glenn Miller

Relax... you have found a reliable extension builder in South Norwood. Glenn Miller Builders Limited is a friendly and reliable company based in So...

From £38,490

Last active Sep 26
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L M G Building Services (London) Ltd

Relax... you have found a reliable extension builder in South Norwood. L M G Building Services (London) Ltd is a friendly and reliable company base...

From £40,830

Last active Sep 26
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Aviemore Building Contractors Ltd

Experienced extension builder ready to quote for your work. Aviemore Building Contractors Ltd is the best extension builder in South Norwood. No ob...

Cheapest builders to convert your basement in South Norwood

Estimates for convert a basement near South Norwood

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 South Norwood by posting a job with HaMuch and we will send it to  extension builders in South Norwood.

"Basement conversion" - BECKENHAM, job posted 01/01/70


Estimates for common extension builder jobs in South Norwood;

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...