Build a single storey extension in SW16 from £54,680

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From £55,960

Rates verified Sep 26
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J&J Building Solutions

Location

Streatham, SW16

Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in SW16. No obligation free quotes...

From £79,000

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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 £75,480

Last active Nov 26
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Buci builders ltd

Robert Buci

Buci builders ltd is a trusted extension builder serving customers in SW16 and the surrounding area. Contact us to today to get a competitive quote...

From £57,880

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 £57,080

Last active Oct 26
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Langston Builders

Langston Builders is a trusted extension builder serving customers in SW16 and the surrounding area. Contact us to today to get a competitive quote...

From £58,680

Last active Oct 26
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Tenfold Renovation

Tenfold Renovation

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

Tenfold Renovation provides a local, trusted extension b...

From £54,680

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 £55,800

Last active Oct 26
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PW Construction & Renovation Ltd

PW Construction & Renovation Ltd is a trusted extension builder serving customers in SW16 and the surrounding area. Contact us to today to get a co...

From £61,720

Last active Sep 26
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PRM BUILDING

Location

Streatham, SW16

Relax... you have found a reliable extension builder in SW16. PRM BUILDING is a friendly and reliable company based in SW16 who consider no job as ...

From £61,400

Last active Sep 26
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QSA Builders Ltd

QSA Builders Ltd are here to help customers who need an Extension Builder in SW16. We offer a competitive rate to complete all your extension build...

Estimates for common extension builder jobs in SW16;

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...