T.I Building is a trusted extension builder serving customers in BT27 and the surrounding area. Contact us to today to get a competitive quote for ...
N W Doyle & Son is a trusted extension builder serving customers in BT27 and the surrounding area. Contact us to today to get a competitive quote f...
Power Construction is an established and experienced local extension builder in BT27. Please contact us for a free, no obligation quote and competi...
With extensive extension buildering experience, we provide reliable, high-quality workmanship at competitive prices. G K Contracts Building & Joine...
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 BT27. SM Plumbing & Heating is a friendly and reliable company based in BT27 who consider n...
Trusted and professional extension builder in BT27. Experienced in all extension buildering work and keeping within budget and on quote. Belfast Lo...
Ballantine building solutions is an established extension buildering business in BT27. We come highly recommended and provide competitive quotes fo...

Mansard loft conversions range from the cheapest installation of £51,136 (Mount Oriel Conversions & Extensions based in BT8) 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 BT27 by posting a job with HaMuch and we'll send it to extension builders in BT27.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Lisburn | £24 | £164 |
| Build A Mansard Loft Conversion near Hillsborough and Culcavy | £25 | £170 |
| Build A Mansard Loft Conversion near Carryduff | £23 | £158 |
| Build A Mansard Loft Conversion near Maghaberry | £31 | £205 |
| Build A Mansard Loft Conversion near Belfast | £23 | £161 |
| Build A Mansard Loft Conversion near Saintfield | £23 | £162 |
| Build A Mansard Loft Conversion near Ballynahinch | £19 | £189 |
| Build A Mansard Loft Conversion near Crumlin | £26 | £194 |
| Build A Mansard Loft Conversion near Comber | £22 | £160 |
| Build A Mansard Loft Conversion near Holywood | £23 | £159 |
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 - £17,010

Two storey extension - £87,264

Build a timber frame extension - £25,510

Build a swimming pool - £80,510

Single storey extension - £45,192

Side return extension - £35,983

Install an RSJ - £1,710

Outbuilding - £9,510

Build a Mansard loft conversion - £51,510

Loft conversion - £29,153

Build a kitchen extension - £41,510

Hip to gable loft conversion - £41,510

Granny annexe - £86,510

Garden office - £9,510

Convert a Garage - £15,510

Garage - £18,010

Build a flat roof extension - £21,510

Build a dormer loft conversion - £41,510

Concrete foundations - £5,760

Convert a bungalow loft - £28,510

Convert a basement - £31,983