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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...
QA's Pointing Brick Repair
Relax... you have found a reliable extension builder in Whitehall. QA's Pointing and Brick Repair is a friendly and reliable company based in White...
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
Relax... you have found a reliable extension builder in Whitehall. M & A UK Ltd is a friendly and reliable company based in Whitehall who consider ...
Jay Reid
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in Whitehall. No obligation f...
CK Constructions & Development Ltd is a trusted extension builder serving customers in Whitehall and the surrounding area. Contact us to today to g...
A to Z Builders Ltd are here to help customers who need an Extension Builder in Whitehall. We offer a competitive rate to complete all your extensi...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Whitehall. No obligation fre...
JK Doors is a trusted extension builder serving customers in Whitehall and the surrounding area. Contact us to today to get a competitive quote for...

Costs range from £87,964 (A to Z Builders Ltd based in SW1P) to £91,480 (Reid and Co Developments Ltd based in NW8), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
Post your job on HaMuch and we'll send it to extension builders to Whitehall.
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 - £17,898

Two storey extension - £88,598

Build a timber frame extension - £26,398

Build a swimming pool - £81,398

Single storey extension - £62,968

Side return extension - £45,982

Install an RSJ - £2,598

Outbuilding - £10,398

Build a Mansard loft conversion - £52,398

Loft conversion - £37,485

Build a kitchen extension - £42,398

Hip to gable loft conversion - £42,398

Granny annexe - £87,398

Garden office - £10,398

Convert a Garage - £16,398

Garage - £18,898

Build a flat roof extension - £22,398

Build a dormer loft conversion - £42,398

Concrete foundations - £6,648

Convert a bungalow loft - £29,398

Convert a basement - £41,982