...Theres a chance that the wall attached to the garage might even be single skin. If it is, that will be a major heat sink
Thats a good shout worth checking. Easiest remedy there would be to insulate that one wall.
i have cold bedrooms.....
Ive recently had the wall cavity filled. It made a very very small amount of difference. I am considering insulated plasterboard next on the outside walls.
However recently i bought a load of top up insulation on a particularly cold day and put it on top of our 300mm that we have up their already. Within a day the house was more comfortable! Do this first.
The next biggest win was i went round each room and lit a match. Blowing it out i could see the smoke move to identify drafts. I then calked the floors etc. This was a big difference as well.
Finally ive cranked the heating up. The mrs doesnt like it on so it comes on at 7am for us to leave the house at 7.30 and the same at 5pm. This means its spending all the time warming up the house. Since wfh a bit this has means ive got the heating on lower but consistently more so the walls don't need to ne heated from as cold a temp.
What's wrong with Cary Grant? You have high standards!

Whack in a much insulation as you can to the loft.
Spend more money than you expect to on the thickest underlay you can afford when replacing your carpet.
Seal up every crack
Consider running a oil storage heater on low throughout the day in the room to keep the walls warm without firing heating throughout the whole house.
We used this for underlay with wool carpet and is pretty toasty.
This for insulating loft. I have 600mm and made a big difference for us.
We also had insulating lime plaster on walls but not sure how much difference it made as moved into house after renovation. I feel you have to insulate underfloor, loft and externally plus stop drafts to make a real difference. But small changes can improve situation no end.
Thanks all.
Franksinatra sums it up nicely - this is the approach I'll take I think.
Dukeduvet - thanks for the link that looks interesting. Related to your username perchance?
Cougar - Only a cosy standard double, bring whatever plugs you feel suitable 😉
😄 I hate being cold!!! Btw you could apply to the Green Homes Grant for certain measures but it’s a bit of a mess.
We have an uninsulated concrete floor in our 2 storey house, the previous owner had expensive karndean laid throughout direct on the concrete.
It always felt cold downstairs.
I put 10mm XPS sheets down (cheap on ebay) and then laminate on top.
Made a massive difference to the way downstairs retains heat. And no more freezing cold feet walking round without slippers.
So yeah, fix any gaps, insulate floor and ceiling and walls if you can.
Job jobbed.
