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Kunshi Services UK Ltd
Kunshi Services UK Ltd is a trusted extension builder serving customers in Thamesmead and the surrounding area. Contact us to today to get a compet...
"Basement conversion" - SE18, job posted 18/06/26
PFM General Building Services Ltd
Philip Boateg
Need to find an Extension Builder near you for all your extension buildering work?
PFM General Building Services Ltd provides a local, trus...
"Garden office" - WOOLWICH, job posted 19/03/26
Liviu Toma
Experienced extension builder ready to quote for your work. Liviu Toma is the best extension builder in Thamesmead. No obligation free quotes and m...
"Loft conversion" - ERITH, job posted 09/08/25
JASPG Construction & Design
JASPG excel in finding investment opportunities, working together with clients and partners to achieve optimal results. We project manage from star...
"Side return extension cost for a ground floor." - IG11, job posted 17/03/25
Great britton builders
David Britton
Relax... you have found a reliable extension builder in Thamesmead. Great britton builders is a friendly and reliable company based in Thamesmead w...
"Dormer loft conversion" - THAMESMEAD, job posted 24/02/25
£46/hr
£286/day
C B BUILDING CONSTRUCTION
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Granny annexe" - ABBEY WOOD, job posted 01/08/24
£43/hr
£270/day
RSM BUILDING CONTRACTORS
Relax... you have found a reliable extension builder in Thamesmead. RSM BUILDING CONTRACTORS is a friendly and reliable company based in Thamesmead...
£38/hr
£240/day
Keane & Sons Paving
Thamesmead, SE28
Keane & Sons Paving is an established and experienced local extension builder in Thamesmead. Please contact us for a free, no obligation quote and ...
£39/hr
£245/day
Satau Construction Works Ltd
Satau Construction Works Ltd is an established and experienced local extension builder in Thamesmead. Please contact us for a free, no obligation q...
£44/hr
£273/day
R H Multitrade
Relax... you have found a reliable extension builder in Thamesmead. R H Multitrade is a friendly and reliable company based in Thamesmead who consi...
£41/hr
£260/day
Dry Spell Builders
Dry Spell Builders are here to help customers who need an Extension Builder in Thamesmead. We offer a competitive rate to complete all your extensi...
£46/hr
£284/day
GHOOSE LTD
Thamesmead Greater London, SE28
Trusted and professional extension builder in Thamesmead. Experienced in all extension buildering work and keeping within budget and on quote. GHOO...
£42/hr
£260/day
Sterling Pillar
Need to find an Extension Builder near you for all your extension buildering work?
Sterling Pillar provides a local, trusted extension buil...
£40/hr
£246/day
Builders Team
Experienced extension builder ready to quote for your work. Builders Team is the best extension builder in Thamesmead. No obligation free quotes an...
£40/hr
£249/day
A3 BUILDING SERVICES
A3 BUILDING SERVICES is an established and experienced local extension builder in Thamesmead. Please contact us for a free, no obligation quote and...
£43/hr
£268/day
Multi-Tech Homes Global Ltd
Need to find an Extension Builder near you for all your extension buildering work?
Multi-Tech Homes Global Ltd provides a local, trusted ex...
£43/hr
£270/day
OAKDENE BUILDING SERVICES
OAKDENE BUILDING SERVICES is a trusted extension builder serving customers in Thamesmead and the surrounding area. Contact us to today to get a com...
Quickly find an Extension Builder in Thamesmead
Use these steps to find Extension Builders in Thamesmead for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Thamesmead. 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 Thamesmead 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 - £26,160
Garden office - £10,160
Granny annexe - £87,160
Build a flat roof extension - £22,160
Convert a Garage - £16,160
Hip to gable loft conversion - £42,160
Convert a bungalow loft - £29,160
Build a dormer loft conversion - £42,160
Build a swimming pool - £81,160
Build a Mansard loft conversion - £52,160
Concrete foundations - £6,410
Underpin a building - £17,660
Two storey extension - £88,240
Convert a basement - £39,300
Side return extension - £43,300
Loft conversion - £35,250
Garage - £18,660
Single storey extension - £58,200
Outbuilding - £10,160
Install an RSJ - £2,360
Build a kitchen extension - £42,160
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