From £49,080
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £51,480
Need an Extension Builder in CF45? FORMWORK CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £52,920
Barlam Drylining Ltd are here to help customers who need an Extension Builder in CF45. We offer a competitive rate to complete all your extension b...
From £51,960
Relax... you have found a reliable extension builder in CF45. Professional Concrete Solutions is a friendly and reliable company based in CF45 who ...
From £45,560
Need an Extension Builder in CF45? A POWELL CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £46,520
L E JONES BUILDER is an established extension buildering business in CF45. We come highly recommended and provide competitive quotes for your work....
From £44,920
Trusted and professional extension builder in CF45. Experienced in all extension buildering work and keeping within budget and on quote. RJ CONSTRU...
From £51,160
Dare Fitness is an established extension buildering business in CF45. We come highly recommended and provide competitive quotes for your work.
...From £51,000
Need an Extension Builder in CF45? MG3Design has been helping local clients (20 mile radius) with their extension buildering jobs for many years. G...
From £46,040
P ALLEN BUILDERS is an established and experienced local extension builder in CF45. Please contact us for a free, no obligation quote and competiti...

| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Rhondda, Cynon, Taff | £27 | £183 |
| Single Storey Extension near Rhondda | £27 | £183 |
| Single Storey Extension near Pontypridd | £29 | £184 |
| Single Storey Extension near Aberdare | £28 | £186 |
| Single Storey Extension near Merthyr Tydfil | £28 | £187 |
| Single Storey Extension near Church Village | £30 | £188 |
| Single Storey Extension near Tredegar | £24 | £195 |
| Single Storey Extension near Caerphilly | £29 | £181 |
| Single Storey Extension near Ebbw Vale | £24 | £195 |
| Single Storey Extension near Risca | £27 | £185 |
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 - £17,203

Two storey extension - £87,555

Build a timber frame extension - £25,703

Build a swimming pool - £80,703

Single storey extension - £49,064

Side return extension - £38,161

Install an RSJ - £1,903

Outbuilding - £9,703

Build a Mansard loft conversion - £51,703

Loft conversion - £30,968

Build a kitchen extension - £41,703

Hip to gable loft conversion - £41,703

Granny annexe - £86,703

Garden office - £9,703

Convert a Garage - £15,703

Garage - £18,203

Build a flat roof extension - £21,703

Build a dormer loft conversion - £41,703

Concrete foundations - £5,953

Convert a bungalow loft - £28,703

Convert a basement - £34,161