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The Philog Paving Services is an established extension buildering business in Llanishen. We come highly recommended and provide competitive quotes ...
Experienced extension builder ready to quote for your work. Chapman Builders is the best extension builder in Llanishen. No obligation free quotes ...
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. JA Building Maintenance is the best extension builder in Llanishen. No obligation free ...
Experienced extension builder ready to quote for your work. TOR BUILD is the best extension builder in Llanishen. No obligation free quotes and man...
Relax... you have found a reliable extension builder in Llanishen. Charles Marshall Contracting Ltd is a friendly and reliable company based in Lla...
Bill Coslett
35 years in the trade and there is not much we haven't come across or done from pools to extensions and we specialise in loft conversions
MARWAY BUILDING LTD is a trusted extension builder serving customers in Llanishen and the surrounding area. Contact us to today to get a competitiv...
Trusted and professional extension builder in Llanishen. Experienced in all extension buildering work and keeping within budget and on quote. Elite...
Paul Knox
Trusted and professional extension builder in Llanishen. Experienced in all extension buildering work and keeping within budget and on quote. PK CO...

Costs range from £86,560 (PK CONSTRUCTION based in CF14) to £87,712 (Chapman Builders based in CF5), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Cardiff | £34 | £223 |
| Two Storey Extension near Caerphilly | £33 | £208 |
| Two Storey Extension near Penarth | £35 | £223 |
| Two Storey Extension near Risca | £32 | £218 |
| Two Storey Extension near Church Village | £34 | £214 |
| Two Storey Extension near Newport | £41 | £233 |
| Two Storey Extension near Pontypridd | £33 | £211 |
| Two Storey Extension near Barry | £33 | £218 |
| Two Storey Extension near Cwmbran | £43 | £219 |
| Two Storey Extension near Rhondda | £31 | £206 |
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 - £17,017

Two storey extension - £87,275

Build a timber frame extension - £25,517

Build a swimming pool - £80,517

Single storey extension - £45,336

Side return extension - £36,064

Install an RSJ - £1,717

Outbuilding - £9,517

Build a Mansard loft conversion - £51,517

Loft conversion - £29,220

Build a kitchen extension - £41,517

Hip to gable loft conversion - £41,517

Granny annexe - £86,517

Garden office - £9,517

Convert a Garage - £15,517

Garage - £18,017

Build a flat roof extension - £21,517

Build a dormer loft conversion - £41,517

Concrete foundations - £5,767

Convert a bungalow loft - £28,517

Convert a basement - £32,064