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Select your affordable BT8 extension builder
Need to find an Extension Builder near you for all your extension buildering work?
Mount Oriel Conversions & Extensions provides a local, t...
Relax... you have found a reliable extension builder in BT8. SM Plumbing & Heating is a friendly and reliable company based in BT8 who consider no ...
From £51,176
Trusted and professional extension builder in BT8. Experienced in all extension buildering work and keeping within budget and on quote. Extended li...

Mansard loft conversions range from the cheapest installation of £51,136 (Mount Oriel Conversions & Extensions based in BT8) 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 BT8 by posting a job with HaMuch and we'll send it to extension builders in BT8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Carryduff | £23 | £158 |
| Build A Mansard Loft Conversion near Belfast | £23 | £161 |
| Build A Mansard Loft Conversion near Saintfield | £23 | £162 |
| Build A Mansard Loft Conversion near Lisburn | £24 | £164 |
| Build A Mansard Loft Conversion near Comber | £22 | £160 |
| Build A Mansard Loft Conversion near Ballygowan | £24 | £183 |
| Build A Mansard Loft Conversion near Holywood | £23 | £159 |
| Build A Mansard Loft Conversion near Ballynahinch | £19 | £189 |
| Build A Mansard Loft Conversion near Hillsborough and Culcavy | £25 | £170 |
| Build A Mansard Loft Conversion near Greenisland | £23 | £153 |
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 - £16,792

Two storey extension - £86,938

Build a timber frame extension - £25,292

Build a swimming pool - £80,292

Single storey extension - £40,840

Side return extension - £33,535

Install an RSJ - £1,492

Outbuilding - £9,292

Build a Mansard loft conversion - £51,292

Loft conversion - £27,113

Build a kitchen extension - £41,292

Hip to gable loft conversion - £41,292

Granny annexe - £86,292

Garden office - £9,292

Convert a Garage - £15,292

Garage - £17,792

Build a flat roof extension - £21,292

Build a dormer loft conversion - £41,292

Concrete foundations - £5,542

Convert a bungalow loft - £28,292

Convert a basement - £29,535