From £51,296
For all your needs. If you need to build a mansard loft conversion contact us today to get a no obligation free quote.
From £51,384
For all your needs. If you need to build a mansard loft conversion contact us today to get a no obligation free quote.
From £51,368
You want to build a mansard loft conversion? No problem, SM Plumbing & Heating is a reliable extension builder with years of experience helping hom...
From £51,320
If you need to build a mansard loft conversion use C.H Property Services. Work is guarenteed and the cost won't hurt the pocket.
From £51,208
A friendly extension builder in Newtownabbey. Happy to provide references and a free quote to build a mansard loft conversion.
From £51,352
A service with a difference. Priced competitively to build a mansard loft conversion and more.
From £51,336
A friendly extension builder in Newtownabbey. Happy to provide references and a free quote to build a mansard loft conversion.
From £51,136
A service with a difference. Priced competitively to build a mansard loft conversion and more.
From £51,384
You want to build a mansard loft conversion? No problem, Finch Construction NI is a reliable extension builder with years of experience helping hom...
From £50,976
Have worked in building industry for over 30 years contracts from government to private sector.
From £51,400
If you need to build a mansard loft conversion use T.I Building. Work is guarenteed and the cost won't hurt the pocket.
From £51,272
If you need to build a mansard loft conversion use apex pharaoh ltd. Work is guarenteed and the cost won't hurt the pocket.

Mansard loft conversions range from the cheapest installation of £50,976 (Anak based in BT40) to the dearest of around £51,488 (AK Building Services based in BT8).
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 | £20 | £134 |
| Build A Mansard Loft Conversion near Holywood | £20 | £138 |
| Build A Mansard Loft Conversion near Belfast | £20 | £137 |
| Build A Mansard Loft Conversion near Carrickfergus | £21 | £145 |
| Build A Mansard Loft Conversion near Ballyclare | £17 | £110 |
| Build A Mansard Loft Conversion near Carryduff | £20 | £136 |
| Build A Mansard Loft Conversion near Bangor | £20 | £150 |
| Build A Mansard Loft Conversion near Bangor | £20 | £150 |
| Build A Mansard Loft Conversion near Comber | £20 | £142 |
| Build A Mansard Loft Conversion near Ballygowan | £20 | £150 |
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 - £16,797

Two storey extension - £86,946

Build a timber frame extension - £25,297

Build a swimming pool - £80,297

Single storey extension - £40,947

Side return extension - £33,595

Install an RSJ - £1,497

Outbuilding - £9,297

Build a Mansard loft conversion - £51,297

Loft conversion - £27,163

Build a kitchen extension - £41,297

Hip to gable loft conversion - £41,297

Granny annexe - £86,297

Garden office - £9,297

Convert a Garage - £15,297

Garage - £17,797

Build a flat roof extension - £21,297

Build a dormer loft conversion - £41,297

Concrete foundations - £5,547

Convert a bungalow loft - £28,297

Convert a basement - £29,595