From £36,825
My Garden Room is an established extension buildering business in TW6. We come highly recommended and provide competitive quotes for your work.
...From £36,675
My Garden Room - exceptional garden buildings. Designed, delivered and installed all over the UK. Visit our London showroom!
From £36,225
The Market Design & Build is an established extension buildering business in TW6. We come highly recommended and provide competitive quotes for you...
From £37,800
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 £36,075
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 £36,375
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 £33,750
Our building services company Rhino Builders Ltd was established in 2019. With over 16 years’ experience in the building trade, we help customers...
From £33,900
We offer a wide range of building services to meet every type of projects.- Bathroom renovation- Kitchen refurbishment- Home extensions / conservat...
From £34,200
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 Loft conversion 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 of a loft conversion in TW6 by posting your job 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