From £36,060
Eltham, SE9
Need to find an Extension Builder near you for all your extension buildering work?
AMJAC CONSTRUCTION LTD provides a local, trusted extensi...
From £37,410
Neris Building Solutions specialising in building of loft conversions, home extensions and home refurbishments.
From £40,920
Eltham, SE9
Experienced extension builder ready to quote for your work. Altash Building Services is the best extension builder in SE9. No obligation free quote...
From £39,030
Need to find an Extension Builder near you for all your extension buildering work?
Hartigans Construction provides a local, trusted extensi...
From £40,020
Eltham, SE9
TA LEE BUILDING SERVICES is an established extension buildering business in SE9. We come highly recommended and provide competitive quotes for your...
From £39,570
Need an Extension Builder in SE9? Loft Living has been helping local clients (5 mile radius) with their extension buildering jobs for many years. G...
From £40,200
London, SE9
Denkar Ltd is an established and experienced local extension builder in SE9. Please contact us for a free, no obligation quote and competitive rate...
From £36,690
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £37,140
Eltham, SE9
MAGNET CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in SE9. We offer a competitive rate to complete all your exten...
From £16,170
We are TDR Property Maintenance, a business that takes great pride in our work.
(Price Work Only)
Services We Cover:
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Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in SE9 by posting a job with HaMuch and we will send it to extension builders in SE9.
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 - £17,395

Two storey extension - £87,843

Build a timber frame extension - £25,895

Build a swimming pool - £80,895

Single storey extension - £52,904

Side return extension - £40,321

Install an RSJ - £2,095

Outbuilding - £9,895

Build a Mansard loft conversion - £51,895

Loft conversion - £32,768

Build a kitchen extension - £41,895

Hip to gable loft conversion - £41,895

Granny annexe - £86,895

Garden office - £9,895

Convert a Garage - £15,895

Garage - £18,395

Build a flat roof extension - £21,895

Build a dormer loft conversion - £41,895

Concrete foundations - £6,145

Convert a bungalow loft - £28,895

Convert a basement - £36,321