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CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in Whitehall and the surrounding area. Contact us to today to g...
"Concrete foundation" - W1T, job posted 16/10/25
A to Z Builders Ltd
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...
"Basement conversion" - LAMBETH, job posted 02/05/25
Cornerstones Construction
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Whitehall. No obligation fre...
JK Doors
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...
JM Building Services
JM Building Services is a trusted extension builder serving customers in Whitehall and the surrounding area. Contact us to today to get a competiti...
Buildwiser
Buildwiser is a trusted extension builder serving customers in Whitehall and the surrounding area. Contact us to today to get a competitive quote f...
F & F Building Services
F & F Building Services is an established extension buildering business in Whitehall. We come highly recommended and provide competitive quotes for...
Q Lofts and Extensions
Anthony Sullivan
We build Lofts. We build Extensions. We undertake conversions. Our Terms and conditions apply as shown in our starter packs.
£42/hr
£269/day
plansing
Plansing Ltd
Experience the best architectural design services with PLANSING, where we flawlessly integrate innovative architectural designer products to bring ...
£26/hr
£26/day
London Design And Build
London Design And Build
Here at London Design and Build, our team of architects, interior designers, structural engineers and contractors, offer a bespoke, turn-key servic...
£40/hr
£249/day
London Projects Ltd
Relax... you have found a reliable extension builder in Whitehall. London Projects Ltd is a friendly and reliable company based in Whitehall who co...
£50/hr
£313/day
Adamko Dry Lining London
Welcome to Adamko Interiors Ltd. We specialize in customized interior design solutions, prioritizing customer satisfaction and creating safe, comfo...
£45/hr
£282/day
Elv8 Interiors
Originally established in 1996 ELV8 has set the highest standards within the building industry, achieving success by winning numerous gold awards f...
£47/hr
£294/day
Mayfair Design
Experienced extension builder ready to quote for your work. Mayfair Design is the best extension builder in Whitehall. No obligation free quotes an...
£41/hr
£253/day
Luxe Refurbs
Luxe Refurbs is an established extension buildering business in Whitehall. We come highly recommended and provide competitive quotes for your work....
£41/hr
£255/day
We Love Build - Three Arches
We Love Build - Three Arches is an established extension buildering business in Whitehall. We come highly recommended and provide competitive quote...
£50/hr
£309/day
We Love Build
We are a Design and Build Company, based in London.We focus on super prime and luxury residential renovations in and around London and internationa...
£47/hr
£292/day
Big Mamma
Big Mamma is an established and experienced local extension builder in Whitehall. Please contact us for a free, no obligation quote and competitive...
£42/hr
£263/day
The Maybria Group
Trusted and professional extension builder in Whitehall. Experienced in all extension buildering work and keeping within budget and on quote. The M...
£48/hr
£298/day
Future Homes Design and Build
Experienced extension builder ready to quote for your work. Future Homes Design and Build is the best extension builder in Whitehall. No obligation...
Quickly find an Extension Builder in Whitehall
Use these steps to find Extension Builders in Whitehall for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Whitehall. We’ll notify you via text or email when an Extension Builder is available to quote.
- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local Whitehall Extension Builders or phone them directly - you’re in control!
Local Extension Builders in London Boroughs
Job estimates from extension builders near you
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.
Build a timber frame extension - £26,224
Garden office - £10,224
Granny annexe - £87,224
Build a flat roof extension - £22,224
Convert a Garage - £16,224
Hip to gable loft conversion - £42,224
Convert a bungalow loft - £29,224
Build a dormer loft conversion - £42,224
Build a swimming pool - £81,224
Build a Mansard loft conversion - £52,224
Concrete foundations - £6,474
Underpin a building - £17,724
Two storey extension - £88,336
Convert a basement - £40,020
Side return extension - £44,020
Loft conversion - £35,850
Garage - £18,724
Single storey extension - £59,480
Outbuilding - £10,224
Install an RSJ - £2,424
Build a kitchen extension - £42,224
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