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T.I Building is a trusted extension builder serving customers in Maghaberry and the surrounding area. Contact us to today to get a competitive quot...
From £30,030
Trusted and professional extension builder in Maghaberry. Experienced in all extension buildering work and keeping within budget and on quote. Belf...
From £30,570
Relax... you have found a reliable extension builder in Maghaberry. Finch Construction NI is a friendly and reliable company based in Maghaberry wh...
From £31,290
Trusted and professional extension builder in Maghaberry. Experienced in all extension buildering work and keeping within budget and on quote. The ...

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 Maghaberry by posting a job with HaMuch and we will send it to extension builders in Maghaberry.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Maghaberry | £31 | £205 |
| Convert A Basement near Hillsborough and Culcavy | £25 | £170 |
| Convert A Basement near Lisburn | £24 | £164 |
| Convert A Basement near Waringstown | £23 | £167 |
| Convert A Basement near Crumlin | £26 | £194 |
| Convert A Basement near Carryduff | £23 | £158 |
| Convert A Basement near Banbridge | £29 | £205 |
| Convert A Basement near Belfast | £23 | £161 |
| Convert A Basement near Craigavon | £23 | £181 |
| Convert A Basement near Ballynahinch | £19 | £189 |
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 - £17,126

Two storey extension - £87,438

Build a timber frame extension - £25,626

Build a swimming pool - £80,626

Single storey extension - £47,512

Side return extension - £37,288

Install an RSJ - £1,826

Outbuilding - £9,626

Build a Mansard loft conversion - £51,626

Loft conversion - £30,240

Build a kitchen extension - £41,626

Hip to gable loft conversion - £41,626

Granny annexe - £86,626

Garden office - £9,626

Convert a Garage - £15,626

Garage - £18,126

Build a flat roof extension - £21,626

Build a dormer loft conversion - £41,626

Concrete foundations - £5,876

Convert a bungalow loft - £28,626

Convert a basement - £33,288