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Select your affordable Down extension builder
Need to find an Extension Builder near you for all your extension buildering work?
Mount Oriel Conversions & Extensions provides a local, t...
Relax... you have found a reliable extension builder in Down. SM Plumbing & Heating is a friendly and reliable company based in Down who consider n...
From £17,796
Ballantine building solutions is an established extension buildering business in Down. We come highly recommended and provide competitive quotes fo...
From £17,884
Designco Ltd is an established extension buildering business in Down. We come highly recommended and provide competitive quotes for your work.
...From £17,676
Trusted and professional extension builder in Down. Experienced in all extension buildering work and keeping within budget and on quote. Extended l...
From £17,764
Trusted and professional extension builder in Down. Experienced in all extension buildering work and keeping within budget and on quote. DGA have m...

Builders charge between £17,636 (Mount Oriel Conversions & Extensions based in BT8) and £17,988 (AK Building Services based in BT8) in Down to build a garage, but these costs are only estimates.
Comparing extension builders estimates for building a garage gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get real quotes to build a new garage in Down by posting a job with HaMuch and we will send it to extension builders in Down.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garage near Comber | £22 | £160 |
| Garage near Holywood | £23 | £159 |
| Garage near Ballygowan | £24 | £183 |
| Garage near Belfast | £23 | £161 |
| Garage near Carryduff | £23 | £158 |
| Garage near Bangor | £24 | £183 |
| Garage near Bangor | £24 | £183 |
| Garage near Greenisland | £23 | £153 |
| Garage near Saintfield | £23 | £162 |
| Garage near Carrickfergus | £23 | £158 |
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 - £16,802

Two storey extension - £86,953

Build a timber frame extension - £25,302

Build a swimming pool - £80,302

Single storey extension - £41,034

Side return extension - £33,644

Install an RSJ - £1,502

Outbuilding - £9,302

Build a Mansard loft conversion - £51,302

Loft conversion - £27,204

Build a kitchen extension - £41,302

Hip to gable loft conversion - £41,302

Granny annexe - £86,302

Garden office - £9,302

Convert a Garage - £15,302

Garage - £17,802

Build a flat roof extension - £21,302

Build a dormer loft conversion - £41,302

Concrete foundations - £5,552

Convert a bungalow loft - £28,302

Convert a basement - £29,644