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Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
SLS BUILDERS LIMITED is a trusted extension builder serving customers in High Holborn and the surrounding area. Contact us to today to get a compet...
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
Trusted and professional extension builder in High Holborn. Experienced in all extension buildering work and keeping within budget and on quote. Th...
Jay Reid
Darren Bergin
Relax... you have found a reliable extension builder in High Holborn. First guard Roofing is a friendly and reliable company based in High Holborn ...
CK Constructions & Development Ltd is a trusted extension builder serving customers in High Holborn and the surrounding area. Contact us to today t...
A to Z Builders Ltd are here to help customers who need an Extension Builder in High Holborn. We offer a competitive rate to complete all your exte...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in High Holborn. No obligation ...
JK Doors is a trusted extension builder serving customers in High Holborn and the surrounding area. Contact us to today to get a competitive quote ...

Kitchen extensions in High Holborn range from the cheapest of £41,976 (SLS BUILDERS LIMITED based in NW5) to the dearest of £44,320 (Reid and Co Developments Ltd based in NW8), 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 High Holborn.
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 - £17,849

Two storey extension - £88,523

Build a timber frame extension - £26,349

Build a swimming pool - £81,349

Single storey extension - £61,976

Side return extension - £45,424

Install an RSJ - £2,549

Outbuilding - £10,349

Build a Mansard loft conversion - £52,349

Loft conversion - £37,020

Build a kitchen extension - £42,349

Hip to gable loft conversion - £42,349

Granny annexe - £87,349

Garden office - £10,349

Convert a Garage - £16,349

Garage - £18,849

Build a flat roof extension - £22,349

Build a dormer loft conversion - £42,349

Concrete foundations - £6,599

Convert a bungalow loft - £29,349

Convert a basement - £41,424