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Select your affordable Butetown extension builder
The Philog Paving Services is an established extension buildering business in Butetown. We come highly recommended and provide competitive quotes f...
Experienced extension builder ready to quote for your work. Chapman Builders is the best extension builder in Butetown. No obligation free quotes a...
Experienced extension builder ready to quote for your work. JA Building Maintenance is the best extension builder in Butetown. No obligation free q...
Experienced extension builder ready to quote for your work. TOR BUILD is the best extension builder in Butetown. No obligation free quotes and many...
Relax... you have found a reliable extension builder in Butetown. Charles Marshall Contracting Ltd is a friendly and reliable company based in Bute...
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 Butetown and the surrounding area. Contact us to today to get a competitive...
Trusted and professional extension builder in Butetown. Experienced in all extension buildering work and keeping within budget and on quote. Elite ...
Paul Knox
Trusted and professional extension builder in Butetown. Experienced in all extension buildering work and keeping within budget and on quote. PK CON...
MCp Home Improvements is an established and experienced local extension builder in Butetown. Please contact us for a free, no obligation quote and ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Butetown it ranges from £1,240 (PK CONSTRUCTION based in CF14) to £2,008 (Chapman Builders based in CF5).
Comparing extension builders estimates for fitting an RSJ 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 install an RSJ in Butetown by posting a job with HaMuch and we will send it to extension builders in Butetown.
"RSJ installation to open up kitchen and utility room. About 2m wide." - CARDIFF, job posted 01/01/70
"RSJ installation" - CARDIFF, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Cardiff | £34 | £223 |
| Install An RSJ near Penarth | £35 | £223 |
| Install An RSJ near Barry | £33 | £218 |
| Install An RSJ near Caerphilly | £33 | £208 |
| Install An RSJ near Church Village | £34 | £214 |
| Install An RSJ near Risca | £32 | £218 |
| Install An RSJ near Newport | £41 | £233 |
| Install An RSJ near Pontypridd | £33 | £211 |
| Install An RSJ near Weston-super-Mare | £33 | £253 |
| Install An RSJ near Cwmbran | £43 | £219 |
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 - £17,076

Two storey extension - £87,364

Build a timber frame extension - £25,576

Build a swimming pool - £80,576

Single storey extension - £46,520

Side return extension - £36,730

Install an RSJ - £1,776

Outbuilding - £9,576

Build a Mansard loft conversion - £51,576

Loft conversion - £29,775

Build a kitchen extension - £41,576

Hip to gable loft conversion - £41,576

Granny annexe - £86,576

Garden office - £9,576

Convert a Garage - £15,576

Garage - £18,076

Build a flat roof extension - £21,576

Build a dormer loft conversion - £41,576

Concrete foundations - £5,826

Convert a bungalow loft - £28,576

Convert a basement - £32,730