4 Common Window Problems and How to Fix Them

By Editorial Team

Updated on November 8, 2023

Without a doubt, windows are an excellent barrier against the outside elements, which is ultimately a testament to the harsh weather conditions experienced at times.

However, windows are not immune to certain problems, which can in turn prevent us from fully benefiting from the comfort they usually bring. But, what exactly are the problems that may be encountered?

4 Window Problems and Solutions

1) Foggy windows

white window frame with bouquet of roses_4 common window problems and how to fix them

If you happen to notice that one of your windows is permanently foggy, it means that the thermal pane is no longer effectively sealing the window from the outside elements. As a result, air penetrates and mixes with the argon gas, which is the gas used in the thermal pane to provide window insulation. Consequently, if your window is no longer insulated, you are likely to experience considerable energy loss. Since a thermal pane issue will quickly add to your heating bill, ensure that the situation is rectified as quickly as possible.

Although some people may recommend changing the entire window, it is at times possible to avoid this drastic measure provided that the overall condition of the window is relatively good and that the damage is only to the thermal pane. Note that for an 18-inch by 60-inch window, replacing the glass will cost about $180, with the bill amounting to $720 for 4 windows with the same dimensions. 

Should you decide to change the glazing, you may have some questions about what option is best for you. Note that a window with argon gas glazing and a low-E coating has a thermal resistance between R-3.4 and R-4.2, which is much higher than that of a sealed, double-glazed window.

Note that it is likewise possible to have an unsealed thermos problem fixed, although chances are, these problems will recur. And that is why it is recommended that the glass be replaced. It should be noted that the cost of replacing the glass varies greatly from one company to another, which is why it is strongly suggested that you obtain 3 quotes before choosing a contractor. 

2) Cold air seeping in

While it is normal to feel a certain chill when standing near a window on a cold day, however, it is not normal to feel a breeze of any kind, albeit a light one. In such a case, the weather stripping around the window may be too old. If so, you will have to change the weatherstripping fairly quickly, otherwise, your heating bill will increase during cold fronts.

Naturally, another possibility is the presence of a sealant defect. A quick visual inspection will enable you to quickly identify whether the caulking is too dry and no longer adhering properly. If you wish to re-caulk your windows, check out our article on this subject matter and benefit from our recommendations to better insulate your home before the cold weather sets in. 

3) Condensation on windows

If you see signs of condensation build-up on windows, you may want to consider changing certain aspects of your lifestyle. In fact, the problem is not so much with your windows, but rather with the presence of too much humidity. Some very effective measures can be taken to remedy this problem:

  • Always turn on the bathroom fan when taking a shower;

  • Turn on the kitchen range hood when cooking;

  • Avoid caring for too many plants;

  • Avoid air-drying clothes.

The Canada Mortgage and Housing Corporation encourage people to reduce the humidity level inside their homes during the winter, particularly when the temperature drops below -25 degrees Celsius. In such circumstances, the organization recommends that humidity levels not exceed 25%. 

4) Poor condition of a wood window frame

wood window frame in poor condition_4 common window problems and how to fix them

When it comes to a wood window frame, it is possible to restore it as long as it is not rotten. However, if it is, you will need to replace the frame. Even though some people can DIY this type of project, it is preferable to seek the expertise of a professional to obtain the best possible quality of work.

Note that peeling paint will weaken the wood frame and, in turn, render it vulnerable to water infiltration, which is why the damage resulting from a wood frame in poor condition should not be taken lightly. Indeed, once water penetrates the wood, the condition of the frame will deteriorate until it becomes completely useless. 

Get 3 renovation quotes for your windows project

RenoQuotes.com can help you get quotes for your windows project. By submitting your project, we’ll put you in contact with top-rated contractors. Fill in the form on the homepage (it only takes a few minutes), and you will get estimates from trusted professionals.

Dial 1-844 828-1588 to speak with one of our customer service representatives.


Get 3 free quotes for your project!

Submit a project and get 3 free quotes!

Looking for something else?

Table of contents

4 min read

Find contractors near you

Enter your postal code



Related articles

The latest industry news, interviews, technologies, and resources.

5 min read

Léa Plourde-Archer

29 Oct 2024

Creating a Home Wellness Room - Tips for Success

Are you all about wellness spas and dedicated to improving your well-being? Looking to create something similar in the comfort of your home?

Renovation tips
5 min read

Editorial Team

08 Nov 2023

How to install a bidet at home

Every homeowner is likely looking for ways to make their bathroom experience more enjoyable. There are plenty of accessories that can be installed in this room, but none quite as luxurious as the bidet.

Interior renovations
6 min read

Cynthia Pigeon

29 Jun 2026

Budget and Safety: What Is the Real Cost of a Walk-In Tub Conversion in Quebec?

Aging in place is a priority for many Quebec seniors and people with mobility limitations. Staying at home, in a familiar environment, provides an unmatched sense of comfort and stability. However, the family home can sometimes present hidden hazards, and the bathroom is often one of the riskiest rooms. With its slippery surfaces and physical obstacles, it can quickly become a stressful space as independence decreases.

Interior renovations
3 min read

Cynthia Pigeon

21 Apr 2026

Heat Pump Rebates Canada 2026: How Much Can You Save?

In 2026, installing a heat pump in Canada is more accessible than ever, thanks to the combination of available incentives. By stacking federal programs with provincial rebates (such as energy efficiency programs and home retrofit grants), homeowners can, in some cases, cover a significant portion of purchase and installation costs—often estimated between 30% and 50%, depending on eligibility and project conditions. For a high-performance central heat pump, these incentives can represent meaningful savings, depending on the model and applicable programs. In addition, some regions offer rebates (around $600) for the purchase and installation of a residential EV charging station.

Heating and Air Conditioning systems
6 min read

Amanda Harvey

08 Nov 2023

What are the standards for building an interior staircase?

Thinking of building an interior staircase to replace the one you currently have? If this is the case, it’s imperative that you know which standards to observe to respect building codes, especially those put in place for the sake of safety and comfort. But what exactly are they?