From £41,190
My Garden Room is an established extension buildering business in TW6. We come highly recommended and provide competitive quotes for your work.
...From £41,010
My Garden Room - exceptional garden buildings. Designed, delivered and installed all over the UK. Visit our London showroom!
From £40,470
The Market Design & Build is an established extension buildering business in TW6. We come highly recommended and provide competitive quotes for you...
From £42,360
Need an Extension Builder in TW6? ZNS Construction has been helping local clients (10 mile radius) with their extension buildering jobs for many ye...
From £40,290
Relax... you have found a reliable extension builder in TW6. Bizy Construction Ltd is a friendly and reliable company based in TW6 who consider no ...
From £40,650
Need an Extension Builder in TW6? Ryan and Collins Ltd. has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
From £37,500
Our building services company Rhino Builders Ltd was established in 2019. With over 16 years’ experience in the building trade, we help customers...
From £37,680
We offer a wide range of building services to meet every type of projects.- Bathroom renovation- Kitchen refurbishment- Home extensions / conservat...
From £38,040
Need an Extension Builder in TW6? Sweet Home Construction Ltd has been helping local clients (10 mile radius) with their extension buildering jobs ...

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 TW6 by posting a job with HaMuch and we will send it to extension builders in TW6.
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 - £17,710

Two storey extension - £88,316

Build a timber frame extension - £26,210

Build a swimming pool - £81,210

Single storey extension - £59,208

Side return extension - £43,867

Install an RSJ - £2,410

Outbuilding - £10,210

Build a Mansard loft conversion - £52,210

Loft conversion - £35,723

Build a kitchen extension - £42,210

Hip to gable loft conversion - £42,210

Granny annexe - £87,210

Garden office - £10,210

Convert a Garage - £16,210

Garage - £18,710

Build a flat roof extension - £22,210

Build a dormer loft conversion - £42,210

Concrete foundations - £6,460

Convert a bungalow loft - £29,210

Convert a basement - £39,867