Relax... you have found a reliable extension builder in BT7. SM Plumbing & Heating is a friendly and reliable company based in BT7 who consider no ...
From £86,764
Trusted and professional extension builder in BT7. Experienced in all extension buildering work and keeping within budget and on quote. Extended li...

Costs range from £86,764 (Extended living by Gilbert-Ash based in BT12) to £87,052 (SM Plumbing & Heating based in BT7), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Belfast | £23 | £161 |
| Two Storey Extension near Carryduff | £23 | £158 |
| Two Storey Extension near Holywood | £23 | £159 |
| Two Storey Extension near Lisburn | £24 | £164 |
| Two Storey Extension near Comber | £22 | £160 |
| Two Storey Extension near Greenisland | £23 | £153 |
| Two Storey Extension near Ballygowan | £24 | £183 |
| Two Storey Extension near Saintfield | £23 | £162 |
| Two Storey Extension near Hillsborough and Culcavy | £25 | £170 |
| Two Storey Extension near Crumlin | £26 | £194 |
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 - £16,772

Two storey extension - £86,908

Build a timber frame extension - £25,272

Build a swimming pool - £80,272

Single storey extension - £40,440

Side return extension - £33,310

Install an RSJ - £1,472

Outbuilding - £9,272

Build a Mansard loft conversion - £51,272

Loft conversion - £26,925

Build a kitchen extension - £41,272

Hip to gable loft conversion - £41,272

Granny annexe - £86,272

Garden office - £9,272

Convert a Garage - £15,272

Garage - £17,772

Build a flat roof extension - £21,272

Build a dormer loft conversion - £41,272

Concrete foundations - £5,522

Convert a bungalow loft - £28,272

Convert a basement - £29,310