From £16,408
By being involved in a variety of residential and commercial projects, we understand the needs of our clients and can complete different types of r...
From £16,160
Whetstone Greater London, N20
Nava Construction LTD a bespoke solution that will transform any space into a place you feel happy and content.
From £16,016
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £16,432
Whetstone, N20
Need an Extension Builder in Whetstone? Odp Builders has been helping local clients (5 mile radius) with their extension buildering jobs for many y...
From £15,944
Builder for London is an established and experienced local extension builder in Whetstone. Please contact us for a free, no obligation quote and co...
From £16,288
Whetstone, N20
Trusted and professional extension builder in Whetstone. Experienced in all extension buildering work and keeping within budget and on quote. D.J C...
From £16,032
Relax... you have found a reliable extension builder in Whetstone. A Sparky Technical Building Services is a friendly and reliable company based in...
From £16,584
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £16,192
I Builder are a well established, reliable and trustworthy company with over twenty years' experience.We are based in Barnet covering Barne...

Garage conversions in Whetstone typically range from £15,944 (Builder for London based in N12) to £16,584 (Homeworks Design & Build Ltd based in N20), 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 Whetstone 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 - £17,702

Two storey extension - £88,304

Build a timber frame extension - £26,202

Build a swimming pool - £81,202

Single storey extension - £59,048

Side return extension - £43,777

Install an RSJ - £2,402

Outbuilding - £10,202

Build a Mansard loft conversion - £52,202

Loft conversion - £35,648

Build a kitchen extension - £42,202

Hip to gable loft conversion - £42,202

Granny annexe - £87,202

Garden office - £10,202

Convert a Garage - £16,202

Garage - £18,702

Build a flat roof extension - £22,202

Build a dormer loft conversion - £42,202

Concrete foundations - £6,452

Convert a bungalow loft - £29,202

Convert a basement - £39,777