Bathroom Windows Replacement: Everything You Should Know

Replacing a bathroom window may seem like an afterthought to most homeowners getting new windows for the whole house.

But there are specific differences about bathroom window replacement and installation, that requires a different approach.

Bathroom windows can only be of specific types and styles if you want to get the maximum out of your replacement project with optimal ventilation, ease of operation and energy efficiency. So, let’s learn everything you should know before choosing vinyl bathroom windows for privacy, aesthetics and comfort.

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Why Bathroom Windows Aren’t the Same As the Rest of the House?

One of the biggest enemies of both new and used windows is moisture. And in most homes, bathrooms are areas with greater humidity and moisture levels than the rest of the house. It is crucial for bathroom windows to not only provide airflow but also prevent water from getting into your wall structure.

Usually, this is a concern when talking about preventing moisture from the outside, but depending on the placement of your bathroom unit, preventing moisture from the inside may be just as important.

Another factor that is just as important as the efficiency of the windows in your bathroom is how well the ventilation system in that room works. Because in Canada it is sometimes impossible to open the window in the wintertime, you are still left to rely on your HVAC system to balance the humidity in your bathroom.

A properly functioning ventilation system will help prevent condensation in the short-term. But quality bathroom window replacement for mould prevention will help you avoid mould problems in the long run.

The Best Bathroom Window Styles for Ventilation, Comfort & Aesthetics

One of the most important decisions when adding a window to a bathroom is its type – operable or fixed. While your ventilation system may be powerful and efficient enough, it is still advisable that the windows you get are operable.

This will help you naturally balance the humidity in the bathroom, as well as provide it with fresh air. If you have several windows, having at least one that you are able to open can make a lot of difference in preventing mould and reducing moisture levels in the bathroom.

Even after you decided on operable windows, there are still choices to be made when it comes to the window style. All operable windows fall into two categories: crank and slider:

• Crank types, such as casement or awning windows, are more efficient of the two kinds, as they usually have a compression seal that makes the window an airtight unit once it’s closed. This comes with its own pitfall: crank windows are more expensive than the slider.
• Sliding and hung windows generally have weather stripping around the operable part and are therefore not as efficient. Furthermore, moisture from the shower can collect on the bristles of the weather stripping and cause even vinyl windows to freeze up in the cold.

Another benefit of crank windows is their ease of operation. Because windows in the bathroom can sometimes be difficult to reach and open, having a hand crank takes the work out of operating the unit.

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Bathroom Window Install: Choosing Correct Frame Materials

Although many Canadian manufacturers today specialise in vinyl windows, there is still some debate as to how well the material compares to traditional wood and aluminum windows. The same is not true about bathrooms, where vinyl is the unanimous go-to material of choice.

The reason is simple: wood is not suitable because it absorbs moisture, and aluminum conducts energy much better than vinyl, resulting in serious freezing problems in the colder months. So when replacing a foggy bathroom window, consider vinyl as the material of choice for most reno projects.

Another thing to remember is that bathroom vinyl windows also have to have vinyl casing (trim) around them. Whereas with most windows in your home you have the option to get a custom wood trim, it is again not a suitable material for this application.

During the installation casings in bathrooms get sealed against the wall to prevent water seepage past trim and into the wall structure. This is not done with other windows in the house, and as a homeowner, you can often manually remove those casings for painting or cleaning of your windows.

Modern Bathroom Window Replacement Ideas and Trends in 2024

Shopping for new bathroom windows and eager to explore the latest trends and ideas? Upgrading your bathroom windows not only enhances the room’s aesthetics but also improves privacy and natural light. Here are some modern trends to consider:

• Frosted or Textured Glass: Perfect for maintaining privacy while allowing light to filter through.
• Operable Windows: Awning or sliding windows offer excellent ventilation and can have energy-efficient features like triple glazing and LoE coatings.
• Coloured Windows: Don’t fancy traditional white? Paint your new windows with any hue you like.
• Decorative Shutters: Combine functionality with charm, offering privacy and a unique look.
• Skylights or Roof Windows: Ideal for top-floor bathrooms, they flood the space with natural light without compromising privacy.

Excited by these ideas? Dive deeper into each trend and see them brought to life in our bathroom renovations. Check out the case studies and photos of our recent bathroom window installations below and get inspired for your own project!

awning with privacy glass

bathroom awning window

traditional hung

painted slider

casement fixed + operable

Bathroom Window Replacement Cost

Understanding the bathroom window replacement cost requires a detailed look at your project. Prices vary widely based on several criteria, including the window’s style, type, glass options, and paint finish.
Each element plays a crucial role in determining the final cost.

For a standard awning bathroom window, you can generally expect prices to range between $1,100 and $1,460. However, we need to know more about your unique needs and preferences to provide an accurate estimate.

By understanding the specifics of your project, bathroom window replacement companies can tailor a solution that fits both your vision and budget. You can also use our replacement window cost estimator below to check prices for different window styles based on the unique features you want to equip them with.

Should You Get Privacy Glass When Replacing Bathroom Window?

Privacy is another big concern that is specific to bathroom windows. Privacy glass, tinted or patterned, is an easy solution for windows of most sizes. The problem with privacy glass is that it can’t always be manufactured when replacing a small bathroom window with a larger one, and that once it’s in, you don’t really have an option if you want a clear view again.

If you are considering blinds for your bathroom windows, make sure to look into a vinyl option. Just like with windows, aluminum or fabric blinds are not suitable for these replacements.

Whether to go with privacy glass or blinds, depends on the placement of your windows in the bathroom, how many windows there are, and, of course, your own personal preference.

It’s true that bathroom windows require a different approach from other windows in your home, but as you can see it isn’t rocket science. You should consider getting operable crank vinyl windows for best performance and efficiency.

Also, remember that the health and efficiency of your ventilation system are just as important in your bathroom. Along with a good HVAC system, quality windows will balance the humidity in your bathroom, reduce condensation and freezing on the glass, and prevent mold growth in the long term.

At Ecoline Windows, we offer a variety of sliding and crank windows to match any budget for a bathroom replacement. We also have several choices for privacy glass to match the design ideas you have in mind. Our window specialists ensure your new units are properly installed and are sealed off from moisture or water seepage, both from the inside and the exterior of your bathroom.

Learn more about replacement windows:

Choosing The Best Bathroom Windows in 2025: Ultimate Guide Top 5 Master Bedroom Window Styles To Revamp Your Space