@ChasnotRobert it's hardly the main issue you have but for the plumbing/new boiler/rads you may want to explore heat pumps.
I also need to replace my system boiler and rads to a combi- I was quoted £4k for that work.
However the government are offering a £7.5k grant for heat pumps, and the work includes replacing any radiators that need it. We'll have to pay the extra past £7.5, so I think we'll end up paying about a grand and a half for the lot. It's well worth it, especially if the place has a system boiler which already has space for the heat cylinder storage.
@ChasnotRobert it's hardly the main issue you have but for the plumbing/new boiler/rads you may want to explore heat pumps.
I also need to replace my system boiler and rads to a combi- I was quoted £4k for that work.
However the government are offering a £7.5k grant for heat pumps, and the work includes replacing any radiators that need it. We'll have to pay the extra past £7.5, so I think we'll end up paying about a grand and a half for the lot. It's well worth it, especially if the place has a system boiler which already has space for the heat cylinder storage.