From £42,408
Greater London, N20
By being involved in a variety of residential and commercial projects, we understand the needs of our clients and can complete different types of r...
From £42,160
Nava Construction LTD a bespoke solution that will transform any space into a place you feel happy and content.
From £42,016
Greater London, N20
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,432
Need an Extension Builder in N20? Odp Builders has been helping local clients (5 mile radius) with their extension buildering jobs for many years. ...
From £41,944
Builder for London is an established and experienced local extension builder in N20. Please contact us for a free, no obligation quote and competit...
From £42,288
Trusted and professional extension builder in N20. Experienced in all extension buildering work and keeping within budget and on quote. D.J Coyle &...
From £42,032
Relax... you have found a reliable extension builder in N20. A Sparky Technical Building Services is a friendly and reliable company based in N20 w...
From £42,584
London, N20
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,192
I Builder are a well established, reliable and trustworthy company with over twenty years' experience.We are based in Barnet covering Barne...

Kitchen extensions in N20 range from the cheapest of £41,944 (Builder for London based in N12) to the dearest of £42,584 (Homeworks Design & Build Ltd based in N20), but these are just estimates based on our database of hourly and daily rates from tradespeople across the country.
The best way to get an accurate price for your kitchen extension is to get actual quotes. Post your job on HaMuch now and we'll send it to extension builders in N20.
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 - £17,702

Two storey extension - £88,304

Build a timber frame extension - £26,202

Build a swimming pool - £81,202

Single storey extension - £59,048

Side return extension - £43,777

Install an RSJ - £2,402

Outbuilding - £10,202

Build a Mansard loft conversion - £52,202

Loft conversion - £35,648

Build a kitchen extension - £42,202

Hip to gable loft conversion - £42,202

Granny annexe - £87,202

Garden office - £10,202

Convert a Garage - £16,202

Garage - £18,702

Build a flat roof extension - £22,202

Build a dormer loft conversion - £42,202

Concrete foundations - £6,452

Convert a bungalow loft - £29,202

Convert a basement - £39,777