We send your job to ALL High Holborn extension builders
Available extension builders in High Holborn reply
Select your affordable High Holborn extension builder
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 ...
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
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...
Trusted and professional extension builder in High Holborn. Experienced in all extension buildering work and keeping within budget and on quote. Th...
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 ...
GS Fabric Ltd is an established and experienced local extension builder in High Holborn. Please contact us for a free, no obligation quote and comp...
JM Building Services is a trusted extension builder serving customers in High Holborn and the surrounding area. Contact us to today to get a compet...

Underpinning ranges from £17,428 (GS Fabric Ltd based in E2) to £17,876 (CK Constructions & Development Ltd based in WC1N), 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 High Holborn by posting a job with HaMuch and we will 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 - £17,611

Two storey extension - £88,167

Build a timber frame extension - £26,111

Build a swimming pool - £81,111

Single storey extension - £57,224

Side return extension - £42,751

Install an RSJ - £2,311

Outbuilding - £10,111

Build a Mansard loft conversion - £52,111

Loft conversion - £34,793

Build a kitchen extension - £42,111

Hip to gable loft conversion - £42,111

Granny annexe - £87,111

Garden office - £10,111

Convert a Garage - £16,111

Garage - £18,611

Build a flat roof extension - £22,111

Build a dormer loft conversion - £42,111

Concrete foundations - £6,361

Convert a bungalow loft - £29,111

Convert a basement - £38,751