From £30,840
Trusted and professional extension builder in BT34. Experienced in all extension buildering work and keeping within budget and on quote. JDL Contra...
From £31,830
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £33,450
With extensive extension buildering experience, we provide reliable, high-quality workmanship at competitive prices. G K Contracts Building & Joine...
From £32,010
N W Doyle & Son is a trusted extension builder serving customers in BT34 and the surrounding area. Contact us to today to get a competitive quote f...

Comparing extension builders estimates for a Convert a basement 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 the cost to convert a basement in BT34 by posting a job with HaMuch and we will send it to extension builders in BT34.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Kilkeel | £24 | £155 |
| Convert A Basement near Banbridge | £25 | £177 |
| Convert A Basement near Waringstown | £21 | £146 |
| Convert A Basement near Craigavon | £22 | £170 |
| Convert A Basement near Ballynahinch | £15 | £150 |
| Convert A Basement near Hillsborough and Culcavy | £21 | £141 |
| Convert A Basement near Maghaberry | £27 | £175 |
| Convert A Basement near Saintfield | £20 | £141 |
| Convert A Basement near Lisburn | £20 | £139 |
| Convert A Basement near Carryduff | £20 | £136 |
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 - £17,014

Two storey extension - £87,271

Build a timber frame extension - £25,514

Build a swimming pool - £80,514

Single storey extension - £45,280

Side return extension - £36,033

Install an RSJ - £1,714

Outbuilding - £9,514

Build a Mansard loft conversion - £51,514

Loft conversion - £29,194

Build a kitchen extension - £41,514

Hip to gable loft conversion - £41,514

Granny annexe - £86,514

Garden office - £9,514

Convert a Garage - £15,514

Garage - £18,014

Build a flat roof extension - £21,514

Build a dormer loft conversion - £41,514

Concrete foundations - £5,764

Convert a bungalow loft - £28,514

Convert a basement - £32,033