From £88,144
Whether you are looking to build, extend or upgrade we will help. From building to decorating. Our professional team have the skills and experie...
From £88,036
Catford Greater London, SE6
Jeremy Weston, trading as GreenGauge has over 10 years experience working as a Heating Engineer. Fully Insured and Gas Safe Registered.Base...
From £88,228
Relax... you have found a reliable extension builder in Catford. S G Painting Contractor Ltd is a friendly and reliable company based in Catford wh...
From £88,228
Catford Greater London, SE6
We provide our clients with excellent service and quality. Whether you are looking to extend or upgrade, our professional team has the skills and e...
From £88,372
Baseline Build and Renovate Ltd is an established extension buildering business in Catford. We come highly recommended and provide competitive quot...
From £88,468
Construction Surety is an established extension buildering business in Catford. We come highly recommended and provide competitive quotes for your ...
From £88,684
MPN Engineering LTD are here to help customers who need an Extension Builder in Catford. We offer a competitive rate to complete all your extension...
From £88,108
Trusted and professional extension builder in Catford. Experienced in all extension buildering work and keeping within budget and on quote. Carai L...
From £88,468
Pure Building & Maintenance is a family run business with over 35 years' experience. Comprising a team of dedicated professionals who all have the...
From £88,300
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Costs range from £88,036 (GreenGauge Heating Limited based in SE6) to £88,684 (MPN Engineering LTD based in BR1), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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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 - £17,702

Two storey extension - £88,304

Build a timber frame extension - £26,202

Build a swimming pool - £81,202

Single storey extension - £59,048

Side return extension - £43,777

Install an RSJ - £2,402

Outbuilding - £10,202

Build a Mansard loft conversion - £52,202

Loft conversion - £35,648

Build a kitchen extension - £42,202

Hip to gable loft conversion - £42,202

Granny annexe - £87,202

Garden office - £10,202

Convert a Garage - £16,202

Garage - £18,702

Build a flat roof extension - £22,202

Build a dormer loft conversion - £42,202

Concrete foundations - £6,452

Convert a bungalow loft - £29,202

Convert a basement - £39,777