Looking for Loft Insulation Installers in Bath BA5?

Roof & Loft Insulation
Project Location: Bath BA5

> Property type: House 

> Job description: many installers have recommended Celotex, what im after is my pitched roof insulated within the joists, the joists have a depth of 100mm, the width of the joints are 370mm and there are 30 of them, 15 each side and they are 4350mmin length. i have insulated my loft floor and am now experiencing condensation on the felt of my roof, this is dripping onto my stored stuff 

> Job start date: ASAP 

> The client is looking for: To get quotes and a contractor to do the work