Sshandy

Hello l wondered if you could give me some help. I've just sold my house (lived in it 13 years but rented out for 2 years) When l moved in i installed central heating into the house (previously only gas fires) and also a new boiler and fusebox. I also built a false wall so l could increase the number of kitchen units then installed a new kitchen,appliances etc Would I be right in thinking these are all improvements and so can be deducted? Any thoughts greatly appreciated