Relax... you have found a reliable extension builder in BT12. SM Plumbing & Heating is a friendly and reliable company based in BT12 who consider n...
From £28,336
Trusted and professional extension builder in BT12. Experienced in all extension buildering work and keeping within budget and on quote. Belfast Lo...
From £28,176
Trusted and professional extension builder in BT12. Experienced in all extension buildering work and keeping within budget and on quote. Extended l...

In BT12, bungalow loft conversions range from the cheapest of £28,176 (Extended living by Gilbert-Ash based in BT12) to the dearest of £28,368 (SM Plumbing & Heating based in BT7), but the best way to get accurate prices is to get quotes.
Post your job on HaMuch now to get extension builders quotes to convert your bungalow's loft in BT12.
"Bungalow loft conversion, the loft has been converted I would like to change the velux windows and make the conversion a dormer conversion running the length of the back of the bungalow" - BELFAST, job posted 05/04/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Bungalow Loft near Belfast | £23 | £161 |
| Convert A Bungalow Loft near Carryduff | £23 | £158 |
| Convert A Bungalow Loft near Holywood | £23 | £159 |
| Convert A Bungalow Loft near Lisburn | £24 | £164 |
| Convert A Bungalow Loft near Greenisland | £23 | £153 |
| Convert A Bungalow Loft near Comber | £22 | £160 |
| Convert A Bungalow Loft near Hillsborough and Culcavy | £25 | £170 |
| Convert A Bungalow Loft near Crumlin | £26 | £194 |
| Convert A Bungalow Loft near Ballygowan | £24 | £183 |
| Convert A Bungalow Loft near Saintfield | £23 | £162 |
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 - £16,793

Two storey extension - £86,940

Build a timber frame extension - £25,293

Build a swimming pool - £80,293

Single storey extension - £40,867

Side return extension - £33,550

Install an RSJ - £1,493

Outbuilding - £9,293

Build a Mansard loft conversion - £51,293

Loft conversion - £27,125

Build a kitchen extension - £41,293

Hip to gable loft conversion - £41,293

Granny annexe - £86,293

Garden office - £9,293

Convert a Garage - £15,293

Garage - £17,793

Build a flat roof extension - £21,293

Build a dormer loft conversion - £41,293

Concrete foundations - £5,543

Convert a bungalow loft - £28,293

Convert a basement - £29,550