I am just wondering if anyone had the same issue. The living room and two bedrooms above it on one side of the house are colder than the rest. When I removed sockets and light pendant there was cold air coming in. The other bedrooms and upstairs hallway would be about 22-22.5 degrees and the other bedrooms about 17-18. Heaters are all hot and bled.
I passed all this on to Barratt and took pictures of behind the plasterboard when sockets removed, this shown a gap between plasterboard and the insulation (pictures attached). After a formal complaint Barratt have said there's nothing wrong, but I said NHBC's guidelines state the insulation should fill the full void with no gaps.
Do people think this is acceptable?