From £51,336
Trusted and professional extension builder in Crumlin. Experienced in all extension buildering work and keeping within budget and on quote. Belfast...
From £51,384
Relax... you have found a reliable extension builder in Crumlin. Finch Construction NI is a friendly and reliable company based in Crumlin who cons...
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 £51,176
Trusted and professional extension builder in Crumlin. Experienced in all extension buildering work and keeping within budget and on quote. Extende...
From £51,400
T.I Building is a trusted extension builder serving customers in Crumlin and the surrounding area. Contact us to today to get a competitive quote f...
From £51,384
Designco Ltd is an established extension buildering business in Crumlin. We come highly recommended and provide competitive quotes for your work.
From £51,368
Relax... you have found a reliable extension builder in Crumlin. SM Plumbing & Heating is a friendly and reliable company based in Crumlin who cons...
From £51,296
Ballantine building solutions is an established extension buildering business in Crumlin. We come highly recommended and provide competitive quotes...
From £51,264
Trusted and professional extension builder in Crumlin. Experienced in all extension buildering work and keeping within budget and on quote. DGA hav...

Mansard loft conversions range from the cheapest installation of £51,176 (Extended living by Gilbert-Ash based in BT12) 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 Crumlin by posting a job with HaMuch and we'll send it to extension builders in Crumlin.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Crumlin | £26 | £194 |
| Build A Mansard Loft Conversion near Maghaberry | £31 | £205 |
| 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 Belfast | £23 | £161 |
| Build A Mansard Loft Conversion near Ballyclare | £20 | £124 |
| Build A Mansard Loft Conversion near Carryduff | £23 | £158 |
| Build A Mansard Loft Conversion near Waringstown | £23 | £167 |
| Build A Mansard Loft Conversion near Greenisland | £23 | £153 |
| 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 - £16,954

Two storey extension - £87,182

Build a timber frame extension - £25,454

Build a swimming pool - £80,454

Single storey extension - £44,088

Side return extension - £35,362

Install an RSJ - £1,654

Outbuilding - £9,454

Build a Mansard loft conversion - £51,454

Loft conversion - £28,635

Build a kitchen extension - £41,454

Hip to gable loft conversion - £41,454

Granny annexe - £86,454

Garden office - £9,454

Convert a Garage - £15,454

Garage - £17,954

Build a flat roof extension - £21,454

Build a dormer loft conversion - £41,454

Concrete foundations - £5,704

Convert a bungalow loft - £28,454

Convert a basement - £31,362