Who would be best to diagnose why one of my rooms get much colder than any of the others? I can't work out why my bedroom is so horribly cold. ...

I can't work out why my bedroom is so horribly cold. Despite the actual temperature individual quite adequate, everything is freezing to the touch. It's only six years elderly so should be adequately insulated and it's get double glazing. I have cupboards surrounded by the eaves and these are 10 deg C colder than the rest of my room - could these be the problem? Or perhaps it's the dorma?

The rest of my flat (except for the lounge) doesn't suffer from this even next to the heating turned right down contained by these rooms. My lounge does have a similar problem and again, it have eaves.

Can anyone recommend who I could get within to diagnose the problem? I called a surveyor but they didn't imagine they could help and I'm not sure a majority builder will have the expertise to diagnose what's wrong. I envision a heat-sensitive camera could help show where on earth all the cold nouns is coming from.

Thanks for any help.
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Answers:    Is the room north facing? My bedroom is much colder than adjectives the other rooms in our flat but its the solitary north facing room.
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Try calling an HVAC company.