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P ALLEN BUILDERS is an established and experienced local extension builder in CF39. Please contact us for a free, no obligation quote and competiti...
We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
From £41,616
Excel Home Design Ltd is an established extension buildering business in CF39. We come highly recommended and provide competitive quotes for your w...

In CF39, prices for dormer loft conversions range from £41,552 (P ALLEN BUILDERS based in CF37) to £41,792 (J.S. Builders based in CF39), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in CF39. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Rhondda | £31 | £206 |
| Build A Dormer Loft Conversion near Rhondda, Cynon, Taff | £31 | £209 |
| Build A Dormer Loft Conversion near Pontypridd | £33 | £211 |
| Build A Dormer Loft Conversion near Church Village | £34 | £214 |
| Build A Dormer Loft Conversion near Aberdare | £32 | £212 |
| Build A Dormer Loft Conversion near Caerphilly | £33 | £208 |
| Build A Dormer Loft Conversion near Bridgend | £32 | £200 |
| Build A Dormer Loft Conversion near Maesteg | £38 | £283 |
| Build A Dormer Loft Conversion near Merthyr Tydfil | £33 | £220 |
| Build A Dormer Loft Conversion near Pyle | £34 | £262 |
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 - £17,153

Two storey extension - £87,480

Build a timber frame extension - £25,653

Build a swimming pool - £80,653

Single storey extension - £48,067

Side return extension - £37,600

Install an RSJ - £1,853

Outbuilding - £9,653

Build a Mansard loft conversion - £51,653

Loft conversion - £30,500

Build a kitchen extension - £41,653

Hip to gable loft conversion - £41,653

Granny annexe - £86,653

Garden office - £9,653

Convert a Garage - £15,653

Garage - £18,153

Build a flat roof extension - £21,653

Build a dormer loft conversion - £41,653

Concrete foundations - £5,903

Convert a bungalow loft - £28,653

Convert a basement - £33,600