From £9,288
We offer a wide range of services completed to a high standard with fully trained personnel
From £9,408
NG Builders is an established extension buildering business in Dumlea. We come highly recommended and provide competitive quotes for your work.
...From £9,696
Relax... you have found a reliable extension builder in Dumlea. JAMSE CONSTRUCTION LTD is a friendly and reliable company based in Dumlea who consi...
From £9,784
JP&S Construction Ltd is an established extension buildering business in Dumlea. We come highly recommended and provide competitive quotes for your...
From £9,784
Relax... you have found a reliable extension builder in Dumlea. Tyrone Turbos is a friendly and reliable company based in Dumlea who consider no jo...
From £10,016
Need to find an Extension Builder near you for all your extension buildering work?
GMC Construction provides a local, trusted extension bui...

Outbuilding costs in Dumlea range from the cheapest of £9,288 (M & R McElhatton Joinery based in BT76) to the dearest of £10,016 (GMC Construction based in BT70), but these are just estimates.
Comparing extension builders estimates for building an outbuilding 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 build an outbuilding in Dumlea by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Dungannon | £23 | £186 |
| Outbuilding near Strabane | £21 | £173 |
| Outbuilding near Coalisland | £21 | £173 |
| Outbuilding near Dungiven | £21 | £179 |
| Outbuilding near Newbuildings | £20 | £166 |
| Outbuilding near Londonderry | £20 | £166 |
| Outbuilding near Magherafelt | £25 | £200 |
| Outbuilding near Strathfoyle | £20 | £166 |
| Outbuilding near Craigavon | £22 | £170 |
| Outbuilding near Coleraine | £21 | £181 |
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 - £17,163

Two storey extension - £87,494

Build a timber frame extension - £25,663

Build a swimming pool - £80,663

Single storey extension - £48,253

Side return extension - £37,705

Install an RSJ - £1,863

Outbuilding - £9,663

Build a Mansard loft conversion - £51,663

Loft conversion - £30,588

Build a kitchen extension - £41,663

Hip to gable loft conversion - £41,663

Granny annexe - £86,663

Garden office - £9,663

Convert a Garage - £15,663

Garage - £18,163

Build a flat roof extension - £21,663

Build a dormer loft conversion - £41,663

Concrete foundations - £5,913

Convert a bungalow loft - £28,663

Convert a basement - £33,705