Alan Gaddarn
Very reliable honest and hard working guarantee all work clean and tidy first class work
Experienced extension builder ready to quote for your work. TOR BUILD is the best extension builder in Gwent. No obligation free quotes and many ha...
T Porter Buiding is an established and experienced local extension builder in Gwent. Please contact us for a free, no obligation quote and competit...
Relax... you have found a reliable extension builder in Gwent. Charles Marshall Contracting Ltd is a friendly and reliable company based in Gwent w...
Sharif General Builder is an established and experienced local extension builder in Gwent. Please contact us for a free, no obligation quote and co...
Need to find an Extension Builder near you for all your extension buildering work?
PARTRIDGE - WILSON BUILDERS provides a local, trusted ex...
D BENDON CONSTRUCTION LTD is an established and experienced local extension builder in Gwent. Please contact us for a free, no obligation quote and...
, NP44
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Relax... you have found a reliable extension builder in Gwent. Ace Paving is a friendly and reliable company based in Gwent who consider no job as ...
Need to find an Extension Builder near you for all your extension buildering work?
ABS Allied Trades provides a local, trusted extension bu...

A timber frame extension built in Gwent typically ranges from £25,200 (A.Gaddarn Builders based in NP11) to £25,984 (PARTRIDGE - WILSON BUILDERS based in NP44), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in Gwent by posting a job with HaMuch and we'll send it to extension builders in Gwent.
"Timber frame extension" - CF3, job posted 02/11/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near Newport | £41 | £233 |
| Build A Timber Frame Extension near Risca | £32 | £218 |
| Build A Timber Frame Extension near Cwmbran | £43 | £219 |
| Build A Timber Frame Extension near Caerphilly | £33 | £208 |
| Build A Timber Frame Extension near Cardiff | £34 | £219 |
| Build A Timber Frame Extension near Pontypool | £30 | £210 |
| Build A Timber Frame Extension near Church Village | £34 | £214 |
| Build A Timber Frame Extension near Penarth | £35 | £219 |
| Build A Timber Frame Extension near Pontypridd | £33 | £211 |
| Build A Timber Frame Extension near Clevedon | £32 | £243 |
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 - £17,218

Two storey extension - £87,576

Build a timber frame extension - £25,718

Build a swimming pool - £80,718

Single storey extension - £49,352

Side return extension - £38,323

Install an RSJ - £1,918

Outbuilding - £9,718

Build a Mansard loft conversion - £51,718

Loft conversion - £31,103

Build a kitchen extension - £41,718

Hip to gable loft conversion - £41,718

Granny annexe - £86,718

Garden office - £9,718

Convert a Garage - £15,718

Garage - £18,218

Build a flat roof extension - £21,718

Build a dormer loft conversion - £41,718

Concrete foundations - £5,968

Convert a bungalow loft - £28,718

Convert a basement - £34,323