From £53,080
Greater London, NW9
Trusted and professional extension builder in NW9. Experienced in all extension buildering work and keeping within budget and on quote. R.A.S. Cons...
From £63,640
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £54,200
Colindale, NW9
HARLEY BUILDING SERVICES LTD are here to help customers who need an Extension Builder in NW9. We offer a competitive rate to complete all your exte...
From £58,680
Relax... you have found a reliable extension builder in NW9. Space Dimensioned Ltd. is a friendly and reliable company based in NW9 who consider no...
From £56,280
Greater London, NW9
Founded in 2000 by Hasan Dikme, a structural engineer and designer, Space Dimensioned Ltd. is a London-based construction and design company. We sp...
From £56,600
Our building services company Luxor Interiors Ltd has 15 years’ experience in the industry. Since then we have been helping customers in London a...
From £58,200
Greater London, NW9
Hallpark Construction are here to help customers who need an Extension Builder in NW9. We offer a competitive rate to complete all your extension b...
From £55,320
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £59,000
West Midlands, NW9
Building restaurations, renovations or refurbishments, plumbing and heating repairing!
From £62,680
Otters Group Ltd is a trusted extension builder serving customers in NW9 and the surrounding area. Contact us to today to get a competitive quote f...

"Single storey extension" - COLINDALE, job posted 01/01/70
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 - £17,638

Two storey extension - £88,208

Build a timber frame extension - £26,138

Build a swimming pool - £81,138

Single storey extension - £57,768

Side return extension - £43,057

Install an RSJ - £2,338

Outbuilding - £10,138

Build a Mansard loft conversion - £52,138

Loft conversion - £35,048

Build a kitchen extension - £42,138

Hip to gable loft conversion - £42,138

Granny annexe - £87,138

Garden office - £10,138

Convert a Garage - £16,138

Garage - £18,638

Build a flat roof extension - £22,138

Build a dormer loft conversion - £42,138

Concrete foundations - £6,388

Convert a bungalow loft - £29,138

Convert a basement - £39,057