From £50,976
Have worked in building industry for over 30 years contracts from government to private sector.
From £51,264
Trusted and professional extension builder in BT40. Experienced in all extension buildering work and keeping within budget and on quote. DGA have m...
From £51,296
Ballantine building solutions is an established extension buildering business in BT40. We come highly recommended and provide competitive quotes fo...
From £51,376
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £51,384
Designco Ltd is an established extension buildering business in BT40. We come highly recommended and provide competitive quotes for your work.
...From £51,368
Relax... you have found a reliable extension builder in BT40. SM Plumbing & Heating is a friendly and reliable company based in BT40 who consider n...
From £51,208
Need an Extension Builder in BT40? MIRKOW has been helping local clients (20 mile radius) with their extension buildering jobs for many years. Get ...
From £51,352
Need to find an Extension Builder near you for all your extension buildering work?
Firenstack Solutions provides a local, trusted extension...
From £51,176
Trusted and professional extension builder in BT40. Experienced in all extension buildering work and keeping within budget and on quote. Extended l...
From £51,280
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Mansard loft conversions range from the cheapest installation of £50,976 (Anak based in BT40) to the dearest of around £51,384 (Designco Ltd based in BT36).
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 BT40 by posting a job with HaMuch and we'll send it to extension builders in BT40.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Larne | £15 | £122 |
| Build A Mansard Loft Conversion near Carrickfergus | £23 | £158 |
| Build A Mansard Loft Conversion near Ballyclare | £20 | £124 |
| Build A Mansard Loft Conversion near Greenisland | £23 | £153 |
| Build A Mansard Loft Conversion near Holywood | £23 | £159 |
| Build A Mansard Loft Conversion near Bangor | £24 | £183 |
| Build A Mansard Loft Conversion near Bangor | £24 | £183 |
| Build A Mansard Loft Conversion near Belfast | £23 | £161 |
| Build A Mansard Loft Conversion near Ballygowan | £24 | £183 |
| Build A Mansard Loft Conversion near Comber | £22 | £160 |
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 - £16,768

Two storey extension - £86,902

Build a timber frame extension - £25,268

Build a swimming pool - £80,268

Single storey extension - £40,360

Side return extension - £33,265

Install an RSJ - £1,468

Outbuilding - £9,268

Build a Mansard loft conversion - £51,268

Loft conversion - £26,888

Build a kitchen extension - £41,268

Hip to gable loft conversion - £41,268

Granny annexe - £86,268

Garden office - £9,268

Convert a Garage - £15,268

Garage - £17,768

Build a flat roof extension - £21,268

Build a dormer loft conversion - £41,268

Concrete foundations - £5,518

Convert a bungalow loft - £28,268

Convert a basement - £29,265