Feeling the chill? HVAC pros reveal if you should close your window’s trickle vents in winter

Bright apartment living room with curved modern boucle seating, window seats and three tall crittal windows facing an apartment building. There is a log fire and geometric rug.

With January in full swing, the colder weather has well and truly set in, with frost, sleet and snow a regular sight.

More often than not, this drop in temperature will also be reflected inside your home, regardless of the heating and draft-proofing measures you may have taken.