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SLS BUILDERS LIMITED
SLS BUILDERS LIMITED is a trusted extension builder serving customers in Harley Street and the surrounding area. Contact us to today to get a compe...
"Concrete foundation" - W1T, job posted 16/10/25
Reid and Co Developments Ltd
Jay Reid
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in Harley Street and the surrounding area. Contact us to today ...
A to Z Builders Ltd
A to Z Builders Ltd are here to help customers who need an Extension Builder in Harley Street. We offer a competitive rate to complete all your ext...
JK Doors
JK Doors is a trusted extension builder serving customers in Harley Street and the surrounding area. Contact us to today to get a competitive quote...
JM Building Services
JM Building Services is a trusted extension builder serving customers in Harley Street and the surrounding area. Contact us to today to get a compe...
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 Harley Street and the surrounding area. Contact us to today to get a competitive quo...
F & F Building Services
F & F Building Services is an established extension buildering business in Harley Street. We come highly recommended and provide competitive quotes...
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...
£48/hr
£303/day
Masters Construction UK
Joel Cayless white
20 years experience in high end carpentry, joinery and furniture making
£41/hr
£258/day
JAY Executinos LTD
JAY Executions LTD is a construction company that specializes in Facade design, Electrical design & Engineering, and Property refurbishments. With ...
£44/hr
£277/day
KBB Master Builder LTD
I would like to take this opportunity to introduce the services offered by KBB Master Builder LTD. KBB Master Builder prides itself on offering hi...
£48/hr
£299/day
UCS UK Ltd
London's Preferred Design & Build PartnerAs one of London's leading family-run construction businesses providing experienced and reliable building ...
£46/hr
£286/day
Grand Phase Ltd
Grand Phase Ltd is a trusted extension builder serving customers in Harley Street and the surrounding area. Contact us to today to get a competitiv...
£46/hr
£289/day
Teammax LTD
Teammax LTD are here to help customers who need an Extension Builder in Harley Street. We offer a competitive rate to complete all your extension b...
£47/hr
£294/day
Design 2000 UK Ltd
Relax... you have found a reliable extension builder in Harley Street. Design 2000 UK Ltd is a friendly and reliable company based in Harley Street...
£50/hr
£309/day
Eternal Solutions
Eternal Solutions is an established extension buildering business in Harley Street. We come highly recommended and provide competitive quotes for y...
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Use these steps to find Extension Builders in Harley Street for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Harley Street. 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 Harley Street 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 - £26,248
Garden office - £10,248
Granny annexe - £87,248
Build a flat roof extension - £22,248
Convert a Garage - £16,248
Hip to gable loft conversion - £42,248
Convert a bungalow loft - £29,248
Build a dormer loft conversion - £42,248
Build a swimming pool - £81,248
Build a Mansard loft conversion - £52,248
Concrete foundations - £6,498
Underpin a building - £17,748
Two storey extension - £88,372
Convert a basement - £40,290
Side return extension - £44,290
Loft conversion - £36,075
Garage - £18,748
Single storey extension - £59,960
Outbuilding - £10,248
Install an RSJ - £2,448
Build a kitchen extension - £42,248
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