Relax... you have found a reliable extension builder in Holywood. SM Plumbing & Heating is a friendly and reliable company based in Holywood who co...
From £15,296
Ballantine building solutions is an established extension buildering business in Holywood. We come highly recommended and provide competitive quote...
From £15,384
Designco Ltd is an established extension buildering business in Holywood. We come highly recommended and provide competitive quotes for your work.<...
From £15,264
Trusted and professional extension builder in Holywood. Experienced in all extension buildering work and keeping within budget and on quote. DGA ha...
From £15,376
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £15,176
Trusted and professional extension builder in Holywood. Experienced in all extension buildering work and keeping within budget and on quote. Extend...

Garage conversions in Holywood typically range from £15,176 (Extended living by Gilbert-Ash based in BT12) to £15,384 (Designco Ltd based in BT36), but the only way to get an accurate cost for your specific project is to get quotes.
Post a job with HaMuch and we'll send it to extension builders in Holywood who will be happy to help.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Garage near Holywood | £23 | £159 |
| Convert A Garage near Greenisland | £23 | £153 |
| Convert A Garage near Belfast | £23 | £161 |
| Convert A Garage near Carrickfergus | £23 | £158 |
| Convert A Garage near Bangor | £24 | £183 |
| Convert A Garage near Bangor | £24 | £183 |
| Convert A Garage near Ballygowan | £24 | £183 |
| Convert A Garage near Comber | £22 | £160 |
| Convert A Garage near Carryduff | £23 | £158 |
| Convert A Garage near Ballyclare | £20 | £124 |
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 - £16,811

Two storey extension - £86,966

Build a timber frame extension - £25,311

Build a swimming pool - £80,311

Single storey extension - £41,213

Side return extension - £33,745

Install an RSJ - £1,511

Outbuilding - £9,311

Build a Mansard loft conversion - £51,311

Loft conversion - £27,288

Build a kitchen extension - £41,311

Hip to gable loft conversion - £41,311

Granny annexe - £86,311

Garden office - £9,311

Convert a Garage - £15,311

Garage - £17,811

Build a flat roof extension - £21,311

Build a dormer loft conversion - £41,311

Concrete foundations - £5,561

Convert a bungalow loft - £28,311

Convert a basement - £29,745