Range from the cheapest Side return extension £31,060 (Extended living by Gilbert-Ash based in BT12) to the dearest Side return extension £32,500 (Colin Gilmore Building Contractor based in BT22).
Comparing extension builders estimates for Side return extension gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for a side return extention by posting your job to extension builders in Killyleagh.

| Business name | Side return extension cost |
|---|---|
| apex pharaoh ltd, Down, bt30 | £31,780 |
| Colin Gilmore Building Contractor, Newtownards, BT22 | £32,500 |
| N W Doyle & Son, Ballynahinch, BT24 | £32,500 |
| Mount Oriel Conversions & Extensions, Belfast, BT8 | £31,330 |
| AK Building Services, Carryduff, BT8 | £31,960 |
| McEvoy Building & Joinery, Cregagh, BT6 | £31,330 |
| Firenstack Solutions, Cregagh, BT6 | £31,150 |
| Willowdale Construction, Castlereagh, BT5 | £31,240 |
| MIRKOW, Cregagh, BT6 | £31,240 |
| SM Plumbing & Heating, Ormeau, BT7 | £31,240 |
| C.H Property Services, Falls Road, BT12 | £31,240 |
| Extended living by Gilbert-Ash, 47 Boucher Road, Belfast, BT12 | £31,060 |
| T.I Building, Ballinderry, BT28 | £31,420 |
| H.M.Builders, Andersonstown, BT11 | £31,330 |
| Finch Construction NI, Antrim, BT28 | £32,320 |
| Belfast Loft Company, Belfast, BT17 | £31,420 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Side Return Extension near Portaferry | £20 | £150 |
| Side Return Extension near Saintfield | £20 | £141 |
| Side Return Extension near Ballynahinch | £15 | £150 |
| Side Return Extension near Comber | £20 | £142 |
| Side Return Extension near Ballygowan | £20 | £150 |
| Side Return Extension near Carryduff | £19 | £130 |
| Side Return Extension near Belfast | £19 | £132 |
| Side Return Extension near Bangor | £20 | £150 |
| Side Return Extension near Bangor | £20 | £150 |
| Side Return Extension near Holywood | £19 | £125 |