How To Remove Condensation From Double Glazing

Double glazing is a worthy investment in any home, providing more warmth, blocking outdoor noise and improving your homes energy efficiency, ultimately saving you money in the process.

Seeing the world outside through a clear window is a domestic pleasure. A foggy or misty window is rather annoying, and in addition to the unsightly view, if water drips down to the panes and remains untreated it could cause mildew and spoil timber window frames.

It’s good to know why condensation happens and how to minimise its occurrence. Condensation can form on the inside, outside and in between the glass panes due to different reasons. So the question we are looking to answer here is; how do I remove condensation from my double glazing?

Why Do Windows Become Misty?

Mist is just water vapour as it changes back into a liquid state when it hits a cold surface. This happens when one side of the window is warm and the other is cold. The droplets start forming and at some point, they spread across the whole window pane.

Water vapour is one of the main components of our ambient air. Its percentage varies around the seasons and changes with the number of people in a room. A crowded room on a winter evening will show quite a bit of fogging on the windows.

Humidity increases if a dryer is on, or there’s plenty of cooking in the kitchen. It can easily build up if the air ventilation is insufficient, and you see it all over the glass panes.

How to Reduce Condensation

Condensation is caused by three main reasons: excessive humidity, low air circulation, and localised cold surfaces.

Reducing condensation can be done by refraining from using the dryer for too long, using larger rooms if there’s a crowd inside the house, opening the windows from time to time, and keeping the temperature at a reasonable setting.

De-misting the Interior

Condensation on the internal glazed surfaces is usually caused by an increased humidity around that window, in the whole room, or even throughout the house. The level of ventilation and air circulation plays an important part as well.

When the weather outside is too cold, usually the heat is turned on inside the house, and the windows become the cool surface that water vapour needs to condensate and cling on.

Lowering the amount of humidity inside the house helps a lot in reducing condensation. Keeping the air moving is also quite helpful, and so is setting the heater to a comfortable but not too high setting. This makes the difference between the inside and outside not too drastic.

De-misting the Exterior

Hot days tend to send the condensation to the other side of the glazing. The inside of the house is much cooler than the outside, and if the day is already humid, you’ll notice a thin misting forming on the exterior surface of your window.

Again, setting the air conditioner to cool not cold is a good move. Some people place some shade trees in front of their windows to give them some shade and reduce the temperature gap between the house and the exterior wall.

De-misting Internal Gap Condensation

Condensation in this context refers to the formation of water droplets within the two panes of your double glazing window. This leads to this condensation drying in warmer weather and creating that unsightly misted effect. Essentially, misting and condensation are caused by a break in the double-glazing seal in the window, this lets moisture into that insulation section of your window thus reducing the qualities of double-glazing unit.

Obviously, double glazed units are sold as a sealed unit and when they were installed in your property they would have been sealed. Over time, however, the rubber seal that keeps water from seeping into the insulating gap breaks down and minute holes begin to develop.

Repairing the Double Glazing Window

To resolve this issue, historically your only options were either to replace the whole double glazing unit or, more recently, just replacing the glass itself. However, for this specific issue, this is where we (Crystal Clear Window Works) are the specialists.

We repair the window instead of replacing it. Our patented technology and simple 4 step process allows us to tackle the problem head on; removing condensation from the inside of your window.

To learn more about our process, take a look at our process webpage –

Our cost-effective procedure not only keeps money in your pocket but also saves the environment by reducing the amount of glass waste going to landfill sites.

We are bringing a new age problem to an old age solution and all of our repairs come with a 10 year warranty.

To obtain a free, no obligation quote – take a look at our quoting page –

Speak soon!