Even if an owner utilizes the services of the most professional Edmonton heating company, the fact of the matter is that drafts still cause a great deal of consternation when the temperatures outside drop below freezing. What are some lesser-known ways to check if air may be escaping from a window or door?

The Candle Method

This is actually one of the most traditional techniques and yet, it has been all but forgotten in these modern times. Carefully hold a lit candle up to a window or door frame. Watch to see if the flame flickers. If a great deal of movement is observed, this is a surefire sign that a leak is present.

Thermal Imaging

At one time, this type of examination was only employed by Spruce Grove heating specialists. Specially constructed sensors will detect hot and cold spots within a home which then hint at areas where heat is escaping. There are now many smartphone applications that can provide the same viewing capability.

Once again, check suspect locations such as around windows, doors, and electrical outlets. It is also a good idea to examine the exterior of the home and in particular, the roof. As heat rises, this is a common means for it to escape if the insulation has not been installed properly.


The principle behind this observation is actually the exact same that can be seen when a cold glass of water is placed within a warm environment. A difference in temperatures will cause moisture to accumulate on the surface, so, check the interior of window panes (especially if they are not double-glazed windows).

Look for the buildup of moisture, fog, or small water droplets. If any of these are noted, a small leak is likely to present. Keep in mind that even if there is no draft detected, the presence of this water signals that a good amount of heat is being lost between the interior of the home and the outside environment.

Assuming that a draft or air leak is detected, it is always best to call a professional Edmonton heating specialist. He or she will be able to recommend the correct solution based on the unique needs of the home.