Cold Hall

[craftor]

Hi Guys, some advice needed here
I had an extension built above my adjoining garage to the depth of the house a while ago, this gave me 2 rooms with a narrow passageway between the 2.

I fitted rads in the 2 rooms but non in neither the new or existing upstairs landings, I have a rad in the downstairs hall but there seems to be a movement of cold air coming under the living room door

I can't see any obvious leaks with carpets fitted all round and garage ceiling double insulated and both lofts insulated

My question is should I have fitted rads upstairs to "balance" the temperature in the hall, up the stairs and on both landings to stop hot/cold air movement
Any replies will be very much appreciated

 

[jeff the gasman]

All areas have an amount of heat loss and the required amount of heat needs to be put back in to maintain comfort levels.
Draught must be coming from somewhere so some detective work needs to be done.
Gas fires/ wood burning stoves need ventilation so be careful and seek expert help if this is the case.
Jeff