From £21,720
Relax... you have found a reliable extension builder in CF72. WESTGATE BUILDING SERVICES LTD is a friendly and reliable company based in CF72 who c...
From £21,784
S J S Services (Wales) Ltd is a trusted extension builder serving customers in CF72 and the surrounding area. Contact us to today to get a competit...
From £21,792
We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
From £21,616
Excel Home Design Ltd is an established extension buildering business in CF72. We come highly recommended and provide competitive quotes for your w...
From £21,864
Need an Extension Builder in CF72? SP Property Maintenance has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £21,552
P ALLEN BUILDERS is an established and experienced local extension builder in CF72. Please contact us for a free, no obligation quote and competiti...
From £21,736
Relax... you have found a reliable extension builder in CF72. DEAN THOMAS BUILDING is a friendly and reliable company based in CF72 who consider no...
From £21,616
EXTEND & BUILD LTD is an established and experienced local extension builder in CF72. Please contact us for a free, no obligation quote and competi...
From £21,680
General Building and Property Renovation Specialists A family business since Based in South Wales We specialise in all aspects of residential build...
From £21,496
Trusted and professional extension builder in CF72. Experienced in all extension buildering work and keeping within budget and on quote. RJ CONSTRU...

A flat roof extension ranges from the cheapest of £21,496 (RJ CONSTRUCTION based in CF40) to the dearest of £21,864 (SP Property Maintenance based in CF35), 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 CF72 by posting a job with HaMuch. We'll send it to extension builders in CF72.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Church Village | £34 | £214 |
| Build A Flat Roof Extension near Pontypridd | £33 | £211 |
| Build A Flat Roof Extension near Rhondda | £31 | £206 |
| Build A Flat Roof Extension near Bridgend | £32 | £200 |
| Build A Flat Roof Extension near Rhondda, Cynon, Taff | £31 | £209 |
| Build A Flat Roof Extension near Caerphilly | £33 | £208 |
| Build A Flat Roof Extension near Vale of Glamorgan | £29 | £217 |
| Build A Flat Roof Extension near Barry | £33 | £218 |
| Build A Flat Roof Extension near Cardiff | £35 | £219 |
| Build A Flat Roof Extension near Penarth | £36 | £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 - £17,186

Two storey extension - £87,528

Build a timber frame extension - £25,686

Build a swimming pool - £80,686

Single storey extension - £48,712

Side return extension - £37,963

Install an RSJ - £1,886

Outbuilding - £9,686

Build a Mansard loft conversion - £51,686

Loft conversion - £30,803

Build a kitchen extension - £41,686

Hip to gable loft conversion - £41,686

Granny annexe - £86,686

Garden office - £9,686

Convert a Garage - £15,686

Garage - £18,186

Build a flat roof extension - £21,686

Build a dormer loft conversion - £41,686

Concrete foundations - £5,936

Convert a bungalow loft - £28,686

Convert a basement - £33,963