If your home has draughty windows and doors, you could be wasting money trying to keep your home warm. Stopping drafts is relatively inexpensive and simple to do and not only saves you money in the long term, but also makes your home a more pleasant place to live in.
The gap between the door jamb and the bottom of the door is potentially prone to drafts. The raised threshold should be in place to stop drafts and prevent water from entering the home. If the threshold does not stop drafts, affix a weatherstrip along the bottom edge of the door.
Door and Window Frames
Several products can be used to line the frames of doors and windows. Rubber or foam tape with an adhesive backing can be applied around the window or door opening. The tape is easy to fit, only requiring scissors to cut to size before removing the backing and sticking in place. Another product that performs the same task are lengths of rubber or foam in the form of a tube. When the door or window is closed, it pushes against the tube and seals the gap. These types of draft excluding strips need to be nailed or tacked in place and tend to be a more permanent solution than the adhesive type.
If the cost of replacing single pane windows with double glazing is too prohibitive, fitting secondary glazing could be an option. An additional window frame is fitted on the inside of the existing window. The frames can be fitted with glass or plastic window frames and usually allow access to the outer window so they can be left in place permanently.
Gaps between the wall and door jambs or window frames can be a source of drafts even if the doors and windows themselves are well fitted. Small cracks can be filled using caulking and a caulking gun. Larger cracks should be inspected by a professional to ensure there are no problems with subsidence.
For a temporary fix, tape cling film around draughty windows, leaving a gap between the window pane and the film. Use masking tape to seal over gaps in the window frame. Place a rug or towel along a draughty door jamb, or hang a blanket or drapes from the top of the door jamb to completely cover the door.