Artjak as promised,see if you qualify for any of this,http://www.free-boilers.org.uk
My sister recently had all of her exterior walls filled with insulation and the brickwork repointed on her local council (Medway), not sure if this is just a local scheme in Kent or national. But I could find out. It's not council owned property...
Alan4711, have just filled in the form, thank you for that. I doubt if I will qualify for a grant, though. But we will see
Emma, that is very kind of you