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P ALLEN BUILDERS is an established and experienced local extension builder in Rhondda. Please contact us for a free, no obligation quote and compet...
Barlam Drylining Ltd are here to help customers who need an Extension Builder in Rhondda. We offer a competitive rate to complete all your extensio...
We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
Relax... you have found a reliable extension builder in Rhondda. WESTGATE BUILDING SERVICES LTD is a friendly and reliable company based in Rhondda...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
S J S Services (Wales) Ltd is a trusted extension builder serving customers in Rhondda and the surrounding area. Contact us to today to get a compe...
Need an Extension Builder in Rhondda? SP Property Maintenance has been helping local clients (20 mile radius) with their extension buildering jobs ...
From £21,528
Need an Extension Builder in Rhondda? A POWELL CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering job...
From £21,616
Excel Home Design Ltd is an established extension buildering business in Rhondda. We come highly recommended and provide competitive quotes for you...
From £21,576
L E JONES BUILDER is an established extension buildering business in Rhondda. We come highly recommended and provide competitive quotes for your wo...

A flat roof extension ranges from the cheapest of £21,528 (A POWELL CONSTRUCTION LTD based in CF44) to the dearest of £21,896 (Barlam Drylining Ltd based in CF45), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Rhondda by posting a job with HaMuch. We'll send it to extension builders in Rhondda.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Rhondda | £31 | £206 |
| Build A Flat Roof Extension near Rhondda, Cynon, Taff | £31 | £209 |
| Build A Flat Roof Extension near Pontypridd | £33 | £211 |
| Build A Flat Roof Extension near Church Village | £34 | £214 |
| Build A Flat Roof Extension near Aberdare | £32 | £212 |
| Build A Flat Roof Extension near Caerphilly | £33 | £208 |
| Build A Flat Roof Extension near Merthyr Tydfil | £33 | £220 |
| Build A Flat Roof Extension near Maesteg | £38 | £283 |
| Build A Flat Roof Extension near Bridgend | £32 | £200 |
| Build A Flat Roof Extension near Tredegar | £30 | £217 |
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