Dougle Glazed french doors

muskoka

In my kitchen (partly new extension). Has 2 windows, 2 roof lights & 1 set of french doors. All double glazed. However, temp in kitchen is very low - constantly cold (i.e. 16 degrees if I'm lucky).

Windows seem fine, however on french doors (the one that you open first), frame feels colder where it butts against 2nd door.....cant see a gap there. There is rubber seal. Tried candle which dosent blow out along the seal, but does feel colder at that part. Wondering if these doors seem to fit correctly.

Also, the lock on the french doors (whcih work externally and internally) i.e. there is an obvious keyhole gap which lets the cold right through. Keys are Millenco...?.Any thoughts gratefully appreicated. I'm becoming suitably embarrassed asking for advice on this forum

Myser

Is it a multi-point Millenco lock with a Euro cylinder lock:

https://www.upvc-hardware.co.uk/locks-gearing-163/multipoint-upvc-door-locks-184/millenco-upvc-door-locks-177/

A Euro cylinder shouldn't let much of a draught through the keyhole.

muskoka

Thanks. I have no idea what type of lock it is, but certainly the keyhole is completely clear, as in draught comes straight through it. Loads of locking points down the door/s. The french doors can be opened by key from the outside or the inside.

I have the window/door Company coming tomorrow to take a look, particularly where the two doors butt together. The 'first' opening door does close towards the '2nd' door and there is a rubber seal there, but also a draught. Hope the Company can help (they've been good so far), but not sure what they can do????