Composite cladding on north facing wall (non cavity type)

[Tingly]

Hello

I have a north facing wall and am wondering if I could smarten it by adding composite cladding to the exterior. While I am at it though it occured to me that maybe I could get a builder to put some insulating material in between? Is this advisable and are there any pitfalls? I have had a couple of convo’s with people who say they are builders , but am not totally confident as both had differing ideas.
Thankyou

 

[freddiemercurystwin]

What is the existing wall makeup? Is the cavity fully insulated already? If not then any new insulation added to the outside of wall will be ineffective.

 

[Tingly]

Hi, no its a 1947 no cavity wall (prob why its freezing) I think they did a double brick in those days judging by the width of the door frames.
Thanks