Under floorboard Insulation?

[Parabola]

We have an Edwardian house in Manchester with sanded wooden floors. There is 3/4' cavity/low basement underneath.

I'd like to get under the floorboards insulated. There is quite a lot of air movement under there.

Spoke to this chap who sounded perfect - but now he's not answering his phones.
http://draughtyfloors.co.uk/index.html

Anyone know someone in the North West who could do this job? Thanks.

[Parabola]

Considering doing it myself, but worried about all the pipes and cables under there from the electric rewire.

This looks like decent stuff.


http://www.rockwool.co.uk/products/rockwool-flexi/

[King Herald]

I looked into it once, appears you nail battens along your joists and lay the insulation strips down on them, cut to a fairly tight fit. . You have to pull all your floorboards up though.