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Select your affordable CR7 extension builder
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in CR7. No obligation free quotes ...
John Mcdonagh
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more than 10 y...
From £19,700
Sebastian Banga
Member since August 2025
Thornton Heath, CR7
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...
Relax... you have found a reliable extension builder in CR7. RAJANIS CONSTRUCTION is a friendly and reliable company based in CR7 who consider no j...
PROBUILDER is a trusted extension builder serving customers in CR7 and the surrounding area. Contact us to today to get a competitive quote for ext...
Trusted and professional extension builder in CR7. Experienced in all extension buildering work and keeping within budget and on quote. K S BUILDER...
Thornton Heath, CR7
Need to find an Extension Builder near you for all your extension buildering work?
VDL Construction Ltd provides a local, trusted extension...
Experienced extension builder ready to quote for your work. Top Builders is the best extension builder in CR7. No obligation free quotes and many h...
Need to find an Extension Builder near you for all your extension buildering work?
Howland Building Services provides a local, trusted exte...
Experienced extension builder ready to quote for your work. A & P Master Construction is the best extension builder in CR7. No obligation free quot...

Builders charge between £18,380 (PROBUILDER based in SW16) and £19,700 (Banga Decoration based in CR7) in CR7 to build a garage, but these costs are only estimates.
Comparing extension builders estimates for building a garage gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get real quotes to build a new garage in CR7 by posting a job with HaMuch and we will send it to extension builders in CR7.
| Borough in London |
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| Garage in Thornton Heath |
| Garage in South Norwood |
| Garage in Crystal Palace |
| Garage in Croydon |
| Garage in Croydon |
| Garage in Streatham |
| Garage in Penge |
| Garage in Tulse Hill |
| Garage in Merton |
| Garage in Wallington |
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 - £17,747

Two storey extension - £88,371

Build a timber frame extension - £26,247

Build a swimming pool - £81,247

Single storey extension - £59,944

Side return extension - £44,281

Install an RSJ - £2,447

Outbuilding - £10,247

Build a Mansard loft conversion - £52,247

Loft conversion - £36,068

Build a kitchen extension - £42,247

Hip to gable loft conversion - £42,247

Granny annexe - £87,247

Garden office - £10,247

Convert a Garage - £16,247

Garage - £18,747

Build a flat roof extension - £22,247

Build a dormer loft conversion - £42,247

Concrete foundations - £6,497

Convert a bungalow loft - £29,247

Convert a basement - £40,281