Robert Buci
Buci builders ltd is a trusted extension builder serving customers in SE24 and the surrounding area. Contact us to today to get a competitive quote...
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
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE24. No obligation free quotes and ...
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in SE24. No obligation free q...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in SE24. No obligation free quo...
Trusted and professional extension builder in SE24. Experienced in all extension buildering work and keeping within budget and on quote. Vidanov Bu...
DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in SE24. We offer a competitive rate to complete all your exten...
Peter Cesma
Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services. Public liabil...
R C BUILDER is a trusted extension builder serving customers in SE24 and the surrounding area. Contact us to today to get a competitive quote for e...
Quality Carpentry is a trusted extension builder serving customers in SE24 and the surrounding area. Contact us to today to get a competitive quote...

Costs range from £87,976 (RCB Group Design & Build based in SE21) to £89,536 (Buci builders ltd based in SE27), 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" - HERNE HILL, job posted 01/12/25
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.

Underpin a building - £17,729

Two storey extension - £88,343

Build a timber frame extension - £26,229

Build a swimming pool - £81,229

Single storey extension - £59,576

Side return extension - £44,074

Install an RSJ - £2,429

Outbuilding - £10,229

Build a Mansard loft conversion - £52,229

Loft conversion - £35,895

Build a kitchen extension - £42,229

Hip to gable loft conversion - £42,229

Granny annexe - £87,229

Garden office - £10,229

Convert a Garage - £16,229

Garage - £18,729

Build a flat roof extension - £22,229

Build a dormer loft conversion - £42,229

Concrete foundations - £6,479

Convert a bungalow loft - £29,229

Convert a basement - £40,074