From £18,548
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in W9. No obligation free quotes a...
From £18,684
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in W9. No obligation free quotes and ma...
From £18,812
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £19,060
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
From £18,596
Experienced extension builder ready to quote for your work. Mr is the best extension builder in W9. No obligation free quotes and many happy custom...
From £18,484
JK Doors is a trusted extension builder serving customers in W9 and the surrounding area. Contact us to today to get a competitive quote for extens...
From £18,692
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
From £18,892
Need an Extension Builder in W9? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many year...
From £18,812
skilled worker who specializes in completing a wide range of building and renovation projects
From £19,116
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in W9 and the surrounding area. Contact us to today to get a compe...

Builders charge between £18,484 (JK Doors based in W1W) and £19,116 (HOUSE BUILDING SERVICES LIMITED based in DA16) in W9 to build a garage, but these costs are only estimates.
Comparing extension builders estimates for building a garage gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get real quotes to build a new garage in W9 by posting a job with HaMuch and we will send it to extension builders in W9.
| Borough in London |
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| Garage in Maida Vale |
| Garage in St John's Wood |
| Garage in Paddington |
| Garage in Kensington |
| Garage in Kilburn |
| Garage in Notting Hill |
| Garage in Marleybone |
| Garage in Marleybone |
| Garage in Kensington |
| Garage in Paddington |
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 - £17,770

Two storey extension - £88,404

Build a timber frame extension - £26,270

Build a swimming pool - £81,270

Single storey extension - £60,392

Side return extension - £44,533

Install an RSJ - £2,470

Outbuilding - £10,270

Build a Mansard loft conversion - £52,270

Loft conversion - £36,278

Build a kitchen extension - £42,270

Hip to gable loft conversion - £42,270

Granny annexe - £87,270

Garden office - £10,270

Convert a Garage - £16,270

Garage - £18,770

Build a flat roof extension - £22,270

Build a dormer loft conversion - £42,270

Concrete foundations - £6,520

Convert a bungalow loft - £29,270

Convert a basement - £40,533