Been giving this some thought.
We are about to have some building work done on the house and asked for a quote. It came back as being £2000k + VAT for the floor so we probably won't be going ahead.
It is for the Kitchen (6mx4m) Dining room (5mx5m) and the Hall (1mx6m) with 100mm Kingspan. Lots of space underneath, 4ft in places. Don't want the floor lifted as many of the boards won't survive and it would generally be an absolute pain. Victorian floor so the joists are not evenly spaced and each piece wuld need to be cut to size specificially. It is Oine floor boards stripped back and varnished. Underneath is crawl space then bare earth
I was wondering if anyone had done this themselves cheaply. What did you use, how much did it cost and how long did it take? (Area done might also be useful)
Using glass wool underneath would be cheap but grim. Is there something similar I could use that is easier and safer. I've seen the space blanket and thinner encapsulated insulation blankets in DIY places but do they actually work? If we could use those then It seems it would be a simple case of going down there with a torch, roll of insulation, scissors and staple gun.
Floor itself isn't massively cold but it is draughty. So would some intensive filling and draught excluding be just as good. I know that filling floorboard gaps is abit like painting the Forth Road Bridge so will need to be maintained but it does seem cheaper and easier.
Thoughts, advice or offers to do it for <£500 appreciated.