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Ali Alagoz
Propello is an established and experienced local extension builder in Tottenham. Please contact us for a free, no obligation quote and competitive...
Relax... you have found a reliable extension builder in Tottenham. 2nwest Builders and Decorators Ltd is a friendly and reliable company based in T...
Experienced extension builder ready to quote for your work. Five Star Builder is the best extension builder in Tottenham. No obligation free quotes...
Dakus Construction Ltd are here to help customers who need an Extension Builder in Tottenham. We offer a competitive rate to complete all your exte...
Dimitar Vakavliev
We are reliable tradesmen delivering quality works with attention to detail
J&H Builder is a trusted extension builder serving customers in Tottenham and the surrounding area. Contact us to today to get a competitive quote ...
M & D BUILDING & DECORATING are here to help customers who need an Extension Builder in Tottenham. We offer a competitive rate to complete all your...
MEGABUILD LTD is a trusted extension builder serving customers in Tottenham and the surrounding area. Contact us to today to get a competitive quot...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Relax... you have found a reliable extension builder in Tottenham. London Trowel Co. is a friendly and reliable company based in Tottenham who cons...

Underpinning ranges from £17,028 (Bellator Construction Ltd based in N11) to £19,084 (Propello based in E17), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Tottenham by posting a job with HaMuch and we will send it to extension builders in Tottenham.
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 - £17,674

Two storey extension - £88,260

Build a timber frame extension - £26,174

Build a swimming pool - £81,174

Single storey extension - £58,472

Side return extension - £43,453

Install an RSJ - £2,374

Outbuilding - £10,174

Build a Mansard loft conversion - £52,174

Loft conversion - £35,378

Build a kitchen extension - £42,174

Hip to gable loft conversion - £42,174

Granny annexe - £87,174

Garden office - £10,174

Convert a Garage - £16,174

Garage - £18,674

Build a flat roof extension - £22,174

Build a dormer loft conversion - £42,174

Concrete foundations - £6,424

Convert a bungalow loft - £29,174

Convert a basement - £39,453