From £50,976
Have worked in building industry for over 30 years contracts from government to private sector.
From £51,400
T.I Building is a trusted extension builder serving customers in Newtownabbey and the surrounding area. Contact us to today to get a competitive qu...
From £51,136
Need to find an Extension Builder near you for all your extension buildering work?
Mount Oriel Conversions & Extensions provides a local, t...
From £51,368
Relax... you have found a reliable extension builder in Newtownabbey. SM Plumbing & Heating is a friendly and reliable company based in Newtownabbe...
From £51,336
Trusted and professional extension builder in Newtownabbey. Experienced in all extension buildering work and keeping within budget and on quote. Be...
From £51,296
Ballantine building solutions is an established extension buildering business in Newtownabbey. We come highly recommended and provide competitive q...
From £51,264
Trusted and professional extension builder in Newtownabbey. Experienced in all extension buildering work and keeping within budget and on quote. DG...
From £51,384
Designco Ltd is an established extension buildering business in Newtownabbey. We come highly recommended and provide competitive quotes for your wo...

Mansard loft conversions range from the cheapest installation of £50,976 (Anak based in BT40) to the dearest of around £52,560 (Build a Boiler based in BT67).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Newtownabbey by posting a job with HaMuch and we'll send it to extension builders in Newtownabbey.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Greenisland | £23 | £153 |
| Build A Mansard Loft Conversion near Holywood | £23 | £159 |
| Build A Mansard Loft Conversion near Belfast | £23 | £161 |
| Build A Mansard Loft Conversion near Carrickfergus | £23 | £158 |
| Build A Mansard Loft Conversion near Ballyclare | £20 | £124 |
| Build A Mansard Loft Conversion near Carryduff | £23 | £158 |
| Build A Mansard Loft Conversion near Bangor | £24 | £183 |
| Build A Mansard Loft Conversion near Bangor | £24 | £183 |
| Build A Mansard Loft Conversion near Comber | £22 | £160 |
| Build A Mansard Loft Conversion near Ballygowan | £24 | £183 |
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 - £16,921

Two storey extension - £87,131

Build a timber frame extension - £25,421

Build a swimming pool - £80,421

Single storey extension - £43,416

Side return extension - £34,984

Install an RSJ - £1,621

Outbuilding - £9,421

Build a Mansard loft conversion - £51,421

Loft conversion - £28,320

Build a kitchen extension - £41,421

Hip to gable loft conversion - £41,421

Granny annexe - £86,421

Garden office - £9,421

Convert a Garage - £15,421

Garage - £17,921

Build a flat roof extension - £21,421

Build a dormer loft conversion - £41,421

Concrete foundations - £5,671

Convert a bungalow loft - £28,421

Convert a basement - £30,984