From £51,512
N W Doyle & Son is a trusted extension builder serving customers in BT30 and the surrounding area. Contact us to today to get a competitive quote f...
From £51,272
apex pharaoh ltd is a trusted extension builder serving customers in BT30 and the surrounding area. Contact us to today to get a competitive quote ...
From £51,312
Colin Gilmore Building Contractor is an established extension buildering business in BT30. We come highly recommended and provide competitive quote...
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 £51,496
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £51,400
T.I Building is a trusted extension builder serving customers in BT30 and the surrounding area. Contact us to today to get a competitive quote for ...
From £51,384
Relax... you have found a reliable extension builder in BT30. Finch Construction NI is a friendly and reliable company based in BT30 who consider n...
From £51,176
Trusted and professional extension builder in BT30. Experienced in all extension buildering work and keeping within budget and on quote. Extended l...
From £51,368
Relax... you have found a reliable extension builder in BT30. SM Plumbing & Heating is a friendly and reliable company based in BT30 who consider n...

Mansard loft conversions range from the cheapest installation of £51,136 (Mount Oriel Conversions & Extensions based in BT8) to the dearest of around £51,512 (N W Doyle & Son based in BT24).
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 BT30 by posting a job with HaMuch and we'll send it to extension builders in BT30.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Portaferry | £22 | £164 |
| Build A Mansard Loft Conversion near Ballynahinch | £19 | £189 |
| Build A Mansard Loft Conversion near Saintfield | £23 | £162 |
| Build A Mansard Loft Conversion near Comber | £22 | £160 |
| Build A Mansard Loft Conversion near Ballygowan | £24 | £183 |
| Build A Mansard Loft Conversion near Carryduff | £23 | £158 |
| Build A Mansard Loft Conversion near Hillsborough and Culcavy | £25 | £170 |
| Build A Mansard Loft Conversion near Lisburn | £24 | £164 |
| Build A Mansard Loft Conversion near Belfast | £23 | £161 |
| 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 - £16,854

Two storey extension - £87,032

Build a timber frame extension - £25,354

Build a swimming pool - £80,354

Single storey extension - £42,088

Side return extension - £34,237

Install an RSJ - £1,554

Outbuilding - £9,354

Build a Mansard loft conversion - £51,354

Loft conversion - £27,698

Build a kitchen extension - £41,354

Hip to gable loft conversion - £41,354

Granny annexe - £86,354

Garden office - £9,354

Convert a Garage - £15,354

Garage - £17,854

Build a flat roof extension - £21,354

Build a dormer loft conversion - £41,354

Concrete foundations - £5,604

Convert a bungalow loft - £28,354

Convert a basement - £30,237