From £37,320
Intellicasa is an established and experienced local extension builder in Notting Hill. Please contact us for a free, no obligation quote and compet...
From £40,110
As an architectural designer my work incorporates architectural layout and design, structure, material finishes, soft furnishings and garden layout...
From £40,200
PEMBRIDGE CONSTRUCTION LTD are here to help customers who need an Extension Builder in Notting Hill. We offer a competitive rate to complete all yo...
From £37,860
Trusted and professional extension builder in Notting Hill. Experienced in all extension buildering work and keeping within budget and on quote. Do...
From £40,560
Domus Italia is an Italian General Contractor specialized in construction, fit out and refurbishement operating in Residential and Commercial proje...
From £41,550
Relax... you have found a reliable extension builder in Notting Hill. M & A UK Ltd is a friendly and reliable company based in Notting Hill who con...
From £37,860
Right Build Group is a professional company for high- quality building services on the highest standard of performance in London.
From £38,760
MRJ Building Services is an established extension buildering business in Notting Hill. We come highly recommended and provide competitive quotes fo...
From £40,740
Experienced extension builder ready to quote for your work. HvB Development + Elnaz Namaki Studio is the best extension builder in Notting Hill. No...
From £39,930
Experienced extension builder ready to quote for your work. Hawkespur Ltd is the best extension builder in Notting Hill. No obligation free quotes ...

Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in Notting Hill by posting a job with HaMuch and we will send it to extension builders in Notting Hill.
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 - £17,677

Two storey extension - £88,265

Build a timber frame extension - £26,177

Build a swimming pool - £81,177

Single storey extension - £58,536

Side return extension - £43,489

Install an RSJ - £2,377

Outbuilding - £10,177

Build a Mansard loft conversion - £52,177

Loft conversion - £35,408

Build a kitchen extension - £42,177

Hip to gable loft conversion - £42,177

Granny annexe - £87,177

Garden office - £10,177

Convert a Garage - £16,177

Garage - £18,677

Build a flat roof extension - £22,177

Build a dormer loft conversion - £42,177

Concrete foundations - £6,427

Convert a bungalow loft - £29,177

Convert a basement - £39,489