I seem unable to find prices. Anyone here have a rough idea about the price of this sort of stuff?

http://www.travisperkins.co.uk/p/gyproc-thermaline-super-plasterboard-with-phenolic-foam-tapered-edge-2400-x-1200-x-50mm/822770/3893471

Diolchen fawr, Ambrose

current prices from Selco

polystyrene backed
30mm 17.75
50mm 25.79

extruded polystyrene backed, thermal xp boards
27mm 22.25
55mm 37.99

all plus vat

Cheers for that, much appreciated, Ambrose

Just a thought, but if your looking at internally (or externally) insulating a solid walled property, check out any local Grean Deal start-up groups. We’re having our solid walled property externally insulated for free in return for allowing folk to come round & view the work for 4 days during the summer. (It was run as a competition in the local paper).

(Sorry, double post)

I bought a load of Celotex from Building Supplies Online, they deliver nationwide and were cheaper than my local builders merchant.

I bought mine from here: BuildIt. The materials came on a Travis Perkins truck and seemed better priced than going directly.

Thanks guys 🙂