From £8,976
Have worked in building industry for over 30 years contracts from government to private sector.
From £9,400
T.I Building is a trusted extension builder serving customers in BT36 and the surrounding area. Contact us to today to get a competitive quote for ...
From £9,136
Need to find an Extension Builder near you for all your extension buildering work?
Mount Oriel Conversions & Extensions provides a local, t...
From £9,368
Relax... you have found a reliable extension builder in BT36. SM Plumbing & Heating is a friendly and reliable company based in BT36 who consider n...
From £9,336
Trusted and professional extension builder in BT36. Experienced in all extension buildering work and keeping within budget and on quote. Belfast Lo...
From £9,296
Ballantine building solutions is an established extension buildering business in BT36. We come highly recommended and provide competitive quotes fo...
From £9,376
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £9,384
Designco Ltd is an established extension buildering business in BT36. We come highly recommended and provide competitive quotes for your work.
...
Outbuilding costs in BT36 range from the cheapest of £8,976 (Anak based in BT40) to the dearest of £10,560 (Build a Boiler based in BT67), 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 BT36 by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Greenisland | £23 | £153 |
| Outbuilding near Ballyclare | £20 | £124 |
| Outbuilding near Belfast | £23 | £161 |
| Outbuilding near Holywood | £23 | £159 |
| Outbuilding near Carrickfergus | £23 | £158 |
| Outbuilding near Carryduff | £23 | £158 |
| Outbuilding near Crumlin | £26 | £194 |
| Outbuilding near Bangor | £24 | £183 |
| Outbuilding near Bangor | £24 | £183 |
| Outbuilding near Lisburn | £24 | £164 |
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 - £16,932

Two storey extension - £87,148

Build a timber frame extension - £25,432

Build a swimming pool - £80,432

Single storey extension - £43,640

Side return extension - £35,110

Install an RSJ - £1,632

Outbuilding - £9,432

Build a Mansard loft conversion - £51,432

Loft conversion - £28,425

Build a kitchen extension - £41,432

Hip to gable loft conversion - £41,432

Granny annexe - £86,432

Garden office - £9,432

Convert a Garage - £15,432

Garage - £17,932

Build a flat roof extension - £21,432

Build a dormer loft conversion - £41,432

Concrete foundations - £5,682

Convert a bungalow loft - £28,432

Convert a basement - £31,110