We send your job to ALL N17 extension builders
Available extension builders in N17 reply
Select your affordable N17 extension builder
Ali Alagoz
Propello is an established and experienced local extension builder in N17. Please contact us for a free, no obligation quote and competitive rates...
Relax... you have found a reliable extension builder in N17. 2nwest Builders and Decorators Ltd is a friendly and reliable company based in N17 who...
J&H Builder is a trusted extension builder serving customers in N17 and the surrounding area. Contact us to today to get a competitive quote for ex...
MEGABUILD LTD is a trusted extension builder serving customers in N17 and the surrounding area. Contact us to today to get a competitive quote for ...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
GG CONSTRUCTION LTD is a trusted extension builder serving customers in N17 and the surrounding area. Contact us to today to get a competitive quot...
Need an Extension Builder in N17? A K Decoration & Building Serv has been helping local clients (5 mile radius) with their extension buildering job...
Fine Loft Construction are here to help customers who need an Extension Builder in N17. We offer a competitive rate to complete all your extension ...
KJV CONSTRUCTION LTD is an established and experienced local extension builder in N17. Please contact us for a free, no obligation quote and compet...

Building a granny annexe ranges from £86,600 (ADD CONSTRUCTION (LONDON) LTD based in N15) to £88,584 (Propello based in E17), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in N17 by posting a job with HaMuch. We will send it to extension builders in N17 who will be happy to help you.
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 - £17,678

Two storey extension - £88,266

Build a timber frame extension - £26,178

Build a swimming pool - £81,178

Single storey extension - £58,552

Side return extension - £43,498

Install an RSJ - £2,378

Outbuilding - £10,178

Build a Mansard loft conversion - £52,178

Loft conversion - £35,415

Build a kitchen extension - £42,178

Hip to gable loft conversion - £42,178

Granny annexe - £87,178

Garden office - £10,178

Convert a Garage - £16,178

Garage - £18,678

Build a flat roof extension - £22,178

Build a dormer loft conversion - £42,178

Concrete foundations - £6,428

Convert a bungalow loft - £29,178

Convert a basement - £39,498