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Select your affordable BS24 extension builder
Pat Hancock
Need to find an Extension Builder near you for all your extension buildering work?
P K BUILDING provides a local, trusted extension builder...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Obsession design and build is a full building services company with an in house team combining extensive experienceand exquisite aspirations. Our t...
From £22,360
Andrew Bishop
We are a medium sized Buisness with a huge reputation for quality workmanship

A flat roof extension ranges from the cheapest of £21,864 (Obsession design and build ltd based in BS22) to the dearest of £22,360 (A K BISHOP based in BS24), 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 BS24 by posting a job with HaMuch. We'll send it to extension builders in BS24.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Weston-super-Mare | £33 | £253 |
| Build A Flat Roof Extension near North Somerset | £32 | £245 |
| Build A Flat Roof Extension near Clevedon | £32 | £243 |
| Build A Flat Roof Extension near Portishead | £33 | £247 |
| Build A Flat Roof Extension near Penarth | £35 | £223 |
| Build A Flat Roof Extension near Bridgwater | £30 | £236 |
| Build A Flat Roof Extension near Cardiff | £34 | £223 |
| Build A Flat Roof Extension near Clifton | £33 | £255 |
| Build A Flat Roof Extension near Barry | £33 | £218 |
| Build A Flat Roof Extension near Bristol | £33 | £255 |
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 - £17,546

Two storey extension - £88,069

Build a timber frame extension - £26,046

Build a swimming pool - £81,046

Single storey extension - £55,920

Side return extension - £42,018

Install an RSJ - £2,246

Outbuilding - £10,046

Build a Mansard loft conversion - £52,046

Loft conversion - £34,181

Build a kitchen extension - £42,046

Hip to gable loft conversion - £42,046

Granny annexe - £87,046

Garden office - £10,046

Convert a Garage - £16,046

Garage - £18,546

Build a flat roof extension - £22,046

Build a dormer loft conversion - £42,046

Concrete foundations - £6,296

Convert a bungalow loft - £29,046

Convert a basement - £38,018