From £16,128
Experienced extension builder ready to quote for your work. Storeyboard is the best extension builder in Greenwich. No obligation free quotes and m...
From £16,200
Greenwich Greater London, SE10
Storeyboard work on projects of all sizes from outhouses and extensions to full renovations and commercial projects.We offer a complete and bespoke...
From £16,272
Experienced extension builder ready to quote for your work. Prestige Roofing Limited is the best extension builder in Greenwich. No obligation free...
From £15,920
Greenwich, SE10
Trusted and professional extension builder in Greenwich. Experienced in all extension buildering work and keeping within budget and on quote. Trafa...
From £16,432
Island design & Construction Ltd are here to help customers who need an Extension Builder in Greenwich. We offer a competitive rate to complete all...
From £16,216
Our building services company Demiri Builder Ltd has 15 years’ experience in the industry. We have been helping customers in Lewisham and the sur...
From £16,040
Dule Vida Property Design Ltd is a trusted extension builder serving customers in Greenwich and the surrounding area. Contact us to today to get a ...
From £15,904
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £16,120
CG Design & Build is a boutique architectural design agency with in-house construction teams, delivering unique one-off residential and commercial...
From £16,240
TP Building & Development Services Ltd is an established and experienced local extension builder in Greenwich. Please contact us for a free, no obl...

Garage conversions in Greenwich typically range from £15,904 (CG Design and Build LTD. based in e14) to £16,432 (Island design & Construction Ltd based in E14), but the only way to get an accurate cost for your specific project is to get quotes.
Post a job with HaMuch and we'll send it to extension builders in Greenwich who will be happy to help.
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 - £17,647

Two storey extension - £88,221

Build a timber frame extension - £26,147

Build a swimming pool - £81,147

Single storey extension - £57,944

Side return extension - £43,156

Install an RSJ - £2,347

Outbuilding - £10,147

Build a Mansard loft conversion - £52,147

Loft conversion - £35,130

Build a kitchen extension - £42,147

Hip to gable loft conversion - £42,147

Granny annexe - £87,147

Garden office - £10,147

Convert a Garage - £16,147

Garage - £18,647

Build a flat roof extension - £22,147

Build a dormer loft conversion - £42,147

Concrete foundations - £6,397

Convert a bungalow loft - £29,147

Convert a basement - £39,156