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JK Doors
JK Doors is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive quote for exte...
"Underpin a building" - N7, job posted 23/08/26
Torrington
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
SLS BUILDERS LIMITED is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive qu...
"Concrete foundation" - W1T, job posted 16/10/25
First guard Roofing
Darren Bergin
Relax... you have found a reliable extension builder in WC1H. First guard Roofing is a friendly and reliable company based in WC1H who consider no ...
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a ...
JM Building Services
JM Building Services is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive qu...
ELJHANI BUILDING & PROPERTY MANAGEMENT SERVICES LTD
Hussein Eljhani
We are highly professional Builders Company, hones pricing and reliable, we leave all areas clean and tidy.
Buildwiser
Buildwiser is a trusted extension builder serving customers in WC1H and the surrounding area. Contact us to today to get a competitive quote for ex...
£83/hr
£508/day
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 ...
£41/hr
£255/day
TOP CONSTRUCTION
TOP CONSTRUCTION is an established extension buildering business in WC1H. We come highly recommended and provide competitive quotes for your work.<...
£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...
£48/hr
£303/day
Masters Construction UK
Joel Cayless white
20 years experience in high end carpentry, joinery and furniture making
£50/hr
£313/day
Citygate
CityGate Homes specialises in full refurbishment projects and interior design services. We offer fully integrated services spanning the entire scop...
£48/hr
£301/day
NARCH Ltd
Greater London, WC1H
The firm’s design portfolio is very diverse ranging from residential, commercial, educational and many other types of developments. NArch has bee...
£50/hr
£309/day
Longland Construction
Longland Construction LTD is a high end refurbishment contractor and sub contractor company in London and surrounding areas. Woodwork, painting and...
£48/hr
£300/day
FLAVIA CONDE
FLAVIA CONDE is an established and experienced local extension builder in WC1H. Please contact us for a free, no obligation quote and competitive r...
£44/hr
£273/day
Pacho Build Ltd
Need to find an Extension Builder near you for all your extension buildering work?
Pacho Build Ltd provides a local, trusted extension buil...
£39/hr
£243/day
Otto & Mensah Build
Relax... you have found a reliable extension builder in WC1H. Otto & Mensah Build is a friendly and reliable company based in WC1H who consider no ...
£46/hr
£287/day
DeHome Studio
Need an Extension Builder in WC1H? DeHome Studio has been helping local clients (5 mile radius) with their extension buildering jobs for many years...
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Use these steps to find Extension Builders in WC1H for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in WC1H. 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 WC1H 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 - £26,216
Garden office - £10,216
Granny annexe - £87,216
Build a flat roof extension - £22,216
Convert a Garage - £16,216
Hip to gable loft conversion - £42,216
Convert a bungalow loft - £29,216
Build a dormer loft conversion - £42,216
Build a swimming pool - £81,216
Build a Mansard loft conversion - £52,216
Concrete foundations - £6,466
Underpin a building - £17,716
Two storey extension - £88,324
Convert a basement - £39,930
Side return extension - £43,930
Loft conversion - £35,775
Garage - £18,716
Single storey extension - £59,320
Outbuilding - £10,216
Install an RSJ - £2,416
Build a kitchen extension - £42,216
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