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J&S WALLINGTON LIMITED
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...
Our Builders Ltd
Max Dixon
We are a construction company specialising in all aspects of building works, loft construction Extension complete home renovation, structural ...
Jmc buildets
Jay Christenson
Experienced extension builder ready to quote for your work. Jmc buildets is the best extension builder in SE12. No obligation free quotes and many ...
AMJAC CONSTRUCTION LTD
Need to find an Extension Builder near you for all your extension buildering work?
AMJAC CONSTRUCTION LTD provides a local, trusted extensi...
RLD Contractors Ltd
RLD Contractors Ltd is an established and experienced local extension builder in SE12. Please contact us for a free, no obligation quote and compet...
Rapid Bee Ltd
Rapid Bee Ltd is an established extension buildering business in SE12. We come highly recommended and provide competitive quotes for your work.
...HA.ME.RA Building & Decoration
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Upwards and Outwards
Relax... you have found a reliable extension builder in SE12. Upwards and Outwards is a friendly and reliable company based in SE12 who consider no...
Hartigans Construction
Andy Hart
Need to find an Extension Builder near you for all your extension buildering work?
Hartigans Construction provides a local, trusted extensi...
Loft Living
Need an Extension Builder in SE12? Loft Living has been helping local clients (5 mile radius) with their extension buildering jobs for many years. ...
Bungalow Loft Conversion Cost in SE12
In SE12, bungalow loft conversions range from the cheapest of £28,616 (Jmc buildets based in SE9) to the dearest of £29,200 (HA.ME.RA Building & Decoration based in BR1), but the best way to get accurate prices is to get quotes.
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Estimates for common extension builder jobs in SE12;
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 - £17,537
Two storey extension - £88,055
Build a timber frame extension - £26,037
Build a swimming pool - £81,037
Single storey extension - £55,736
Side return extension - £41,914
Install an RSJ - £2,237
Outbuilding - £10,037
Build a Mansard loft conversion - £52,037
Loft conversion - £34,095
Build a kitchen extension - £42,037
Hip to gable loft conversion - £42,037
Granny annexe - £87,037
Garden office - £10,037
Convert a Garage - £16,037
Garage - £18,537
Build a flat roof extension - £22,037
Build a dormer loft conversion - £42,037
Concrete foundations - £6,287
Convert a bungalow loft - £29,037
Convert a basement - £37,914