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T.I Building
T.I Building is a trusted extension builder serving customers in Hillsborough And Culcavy and the surrounding area. Contact us to today to get a co...
"Loft conversion" - BT28, job posted 19/09/26
"Loft conversion" - BT28, job posted 28/05/26
Mount Oriel Conversions & Extensions
Need to find an Extension Builder near you for all your extension buildering work?
Mount Oriel Conversions & Extensions provides a local, t...
"Loft conversion" - BT28, job posted 02/02/26
£24/hr
£167/day
Belfast Loft Company
Trusted and professional extension builder in Hillsborough And Culcavy. Experienced in all extension buildering work and keeping within budget and ...
"Loft conversion" - DERRY, job posted 05/11/24
£26/hr
£173/day
Finch Construction NI
Relax... you have found a reliable extension builder in Hillsborough And Culcavy. Finch Construction NI is a friendly and reliable company based in...
"Loft conversion" - LISBURN, job posted 04/10/23
Compare Hillsborough And Culcavy extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Hillsborough and Culcavy | £25 | £170 |
| Extension Builders near Lisburn | £24 | £164 |
| Extension Builders near Maghaberry | £31 | £205 |
| Extension Builders near Carryduff | £23 | £158 |
| Extension Builders near Waringstown | £23 | £167 |
| Extension Builders near Ballynahinch | £19 | £189 |
| Extension Builders near Saintfield | £23 | £162 |
| Extension Builders near Belfast | £23 | £161 |
| Extension Builders near Crumlin | £26 | £194 |
| Extension Builders near Banbridge | £29 | £205 |
Job estimates from extension builders near you
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.

Build a timber frame extension - £25,560

Garden office - £9,560

Granny annexe - £86,560

Build a flat roof extension - £21,560

Convert a Garage - £15,560

Hip to gable loft conversion - £41,560

Convert a bungalow loft - £28,560

Build a dormer loft conversion - £41,560

Build a swimming pool - £80,560

Build a Mansard loft conversion - £51,560

Concrete foundations - £5,810

Underpin a building - £17,060

Two storey extension - £87,340

Convert a basement - £32,550

Side return extension - £36,550

Loft conversion - £29,625

Garage - £18,060

Single storey extension - £46,200

Outbuilding - £9,560

Install an RSJ - £1,760

Build a kitchen extension - £41,560
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