Torrington Design
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
Mick Singh
At Building Services Contractors we pride ourselves on an efficient and friendly service, and strive to achieve 100% customer satisfaction.
Experienced extension builder ready to quote for your work. Five Star Builder is the best extension builder in Islington. No obligation free quotes...
Relax... you have found a reliable extension builder in Islington. London Trowel Co. is a friendly and reliable company based in Islington who cons...
Trusted and professional extension builder in Islington. Experienced in all extension buildering work and keeping within budget and on quote. Therm...
SLS BUILDERS LIMITED is a trusted extension builder serving customers in Islington and the surrounding area. Contact us to today to get a competiti...
Darren Bergin
Relax... you have found a reliable extension builder in Islington. First guard Roofing is a friendly and reliable company based in Islington who co...
CK Constructions & Development Ltd is a trusted extension builder serving customers in Islington and the surrounding area. Contact us to today to g...
JK Doors is a trusted extension builder serving customers in Islington and the surrounding area. Contact us to today to get a competitive quote for...

Kitchen extensions in Islington range from the cheapest of £41,976 (SLS BUILDERS LIMITED based in NW5) to the dearest of £42,400 (Five Star Builder based in N16), 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 Islington.
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 - £88,268

Build a timber frame extension - £26,178

Build a swimming pool - £81,178

Single storey extension - £58,568

Side return extension - £43,507

Install an RSJ - £2,378

Outbuilding - £10,178

Build a Mansard loft conversion - £52,178

Loft conversion - £35,423

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 - £39,507