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What Are the Best Bathroom Replacement Windows? (2024 Guide)

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Author Icon By Jessica Wimmer Updated 12/19/2023

The right bathroom window improves your space’s look and functionality. It also increases ventilation, reduces moisture buildup, and boosts the room’s comfort. In addition, high-quality windows can enhance your energy efficiency and help reduce condensation. This guide offers tips on selecting the best bathroom replacement windows based on style, functionality, and privacy options.


How To Choose Bathroom Window Replacements

Consider your current bathroom windows and any upgrades you may want. Bathroom windows aren’t restricted to a specific window type, allowing homeowners to customize their look. Certain window styles work better than others due to their size, functionality, and privacy options. We’ve listed some key features to consider when shopping for the best replacement windows for bathrooms. 

Available Wall Space

Most bathrooms are small spaces and have limited wall space for new windows. Smaller designs, such as half-baths, especially limit your options compared to primary bathrooms. Installing a window in a small space reduces the available wall space for other accessories, such as towel racks or cabinets. 

Consider installing windows higher up on small bathroom walls to maximize your space. If you’re installing primary or extended bathroom windows, standard window sizes will work. Larger window designs, such as picture windows, create the feel of a more open space, making the bathroom appear larger. 

Bathroom Privacy

While windows offer additional light and ventilation, they also expose more of your private space to the outside world. It’s important to consider window placement to preserve your privacy without limiting your new windows’ function. If your home has a private yard with fencing, you can install larger windows in your bathroom. You won’t need as many privacy protections and can enjoy the added light without concern. If your property has limited privacy features, add window treatments, such as shades, blinds, or curtains, to protect the room. 

Additional privacy upgrades include frosted or textured glass. These glass options limit interior visibility without reducing natural light. If protecting your privacy is more important than sunlight, opt for tinted glass or window films. Some window manufacturers also offer privacy glass which limits interior and exterior visibility. 

Window Frame Material

Bathrooms receive daily exposure to high moisture and humidity levels and are more prone to mold and mildew. Your new bathroom windows should be durable enough to withstand these conditions. Selecting nonporous window frame materials for your bathroom is important. Fiberglass, aluminum, or vinyl windows provide the best bathroom protection. Avoid wood bathroom windows since they’re prone to water damage and rot without regular maintenance. 

Different window frame materials will impact your window replacement costs. If you’re looking for cheap replacement windows, choose vinyl or aluminum. Fiberglass windows cost more but are efficient. Vinyl windows provide good energy efficiency but don’t have great visual appeal. Aluminum windows offer sleek lines but limited energy efficiency benefits. 

Window Operation

Bathroom windows have several purposes, such as improving ventilation, increasing natural light, and enhancing your room’s look. Select the window options that best meet your bathroom needs. 

Homeowners typically install an exhaust fan to help dissipate a bathroom’s humidity and moisture. This reduces the chance of mold or mildew accumulation. If you don’t have an exhaust fan, consider adding functional windows that open and close. Multipane windows are an excellent option to combat condensation. These windows have insulating gas between the glass panes to reduce the effects of outdoor temperatures. Insulated windows also sweat less in humid temperatures. 

If you want to increase sunlight and fresh air, consider operational windows with limited coverings. Maximize incoming sunlight by skipping window grilles, treatments, and other light-reducing enhancements. Choose smaller, functional windows for added airflow with controlled sunlight. If you have an exhaust fan but want more sunlight, choose inoperative or fixed windows to increase the room’s natural light.

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Window Replacement

Window replacement typically costs $300–$2,100 per window, depending on the window type.

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Window Repair

Window repair typically costs $100–$600, but it can vary based on the type of repair.

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Window Cleaning Cost

Window cleaning typically costs $150–$300 for an entire home.

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Best Window Styles for Bathrooms

Consider your bathroom’s wall space, floor plan, and privacy needs. Each window style offers different benefits and can bring more function and beauty to your home. Below is our list of options for the best replacement bathroom windows. 

Awning Windows

Awning windows offer excellent ventilation and privacy when placed on high walls. These windows open outward from your home using a hinge at the frame’s top. Awning windows come in various sizes, so find one that works with your wall space. If you choose larger windows, consider adding privacy glass to limit visibility. 

Casement Windows

Casement windows offer maximum ventilation and bright outdoor views. These windows have side hinges like a door and open outward. They’re larger than other options, allowing for beautiful surrounding views. Given their size, you must install window treatments or textured glass if your home lacks privacy fencing. 

Double-Hung Windows

Double-hung windows offer optimal airflow thanks to their two movable panels (or sashes).These windows open at the top and bottom and sometimes include tilt-in sashes for easy cleaning. Double-hung windows are recommended for higher floors due to their dual openings. Consider adding additional window locks for security. 

These windows also offer insulation to reduce condensation and fogging. Upgrading to double-pane windows increases moisture resistance and energy efficiency. Choose triple-pane double-hung windows if you want maximum energy efficiency and noise reduction. 

Glass Block Windows

Consider glass block windows for bathrooms that have proper ventilation but need more sunlight. Glass block windows have textured glass, offering optimal privacy without sacrificing sunlight. These inoperative windows work as a bathroom focal point and don’t require window treatments

Sliding Windows

Sliding (or gliding) windows have a movable sash that slides to the right or left. They work in tight spaces and can bring excellent sunlight and ventilation into a room. Gliding windows come in various sizes—even models small enough to add to a shower. If security is a concern, choose models with one fixed side for added protection. We recommend installing fixed models on ground floors and dual-function models for higher floors. 

Transom Windows

Transom windows sit above an entry or doorway as focal points in your home. These windows come in fixed and operable models with bottom hinges for better ventilation. Transom windows come in different shapes and often incorporate decorative patterns or specialty glass, such as stained or frosted. These windows can be installed on outward or inward walls. Depending on the glass pattern, they allow some light to enter the bathroom. 

Skylights

Consider a skylight if your bathroom has no external walls or minimal wall space. These windows come in fixed and operative options and don’t require additional privacy coverings. Functioning skylights offer optimal sky views while casting sunlight into your bathroom. Operational skylights come in manual and motorized versions, making it easy to ventilate your bathroom. Skylights also help with energy efficiency, as the added sunlight naturally warms the room.


Our Conclusion

Bathroom windows help elevate the room’s functionality, style, and comfort. Before choosing replacement windows, consider the features and benefits you need. Opt for smaller, higher up windows or skylights if you have limited wall space. Homeowners with private yards can choose larger windows that offer maximum sunlight and fresh air. Most replacement windows have options for privacy glass or other textured glass to add privacy. You can also add window treatments or film tinting to reduce visibility

We recommend hiring a professional window installer for your project. Using a professional ensures a high-quality installation plus added warranties if there are any future problems. Request three or more free quotes for the best selection, pricing, and upgrade options.

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FAQ About Bathroom Replacement Windows

What is the best material for a bathroom window?

The best material for bathroom windows are nonporous, durable options such as vinyl, fiberglass, or aluminum. These windows resist humidity and moisture while remaining durable for years. Avoid installing wood windows since they’re prone to deterioration and rot when improperly maintained.

How important is a bathroom window?

Bathroom windows provide improved ventilation to reduce odors, humidity, and moisture accumulation. Without proper ventilation, the added moisture could cause mold or mildew. Bathroom windows can also add natural light to the room. Homeowners could reduce their artificial light use and save on energy bills. 

What windows are best for bathroom ventilation?

The best windows for bathroom ventilation are casement and double-hung windows. These windows offer optimal ventilation and fresh air due to their dual openings. Awning or sliding windows can also provide good ventilation for humid bathrooms. The best window choice depends on your available wall space, privacy needs, and other preferred features. 


Our Rating Methodology

The This Old House Reviews Team backs up our window ratings and recommendations with a detailed rating methodology to objectively score each provider. We conduct research by speaking with company representatives, browsing product selections, analyzing window line specifications, and conducting focus groups and consumer surveys. We then score each provider against our review standards for window variety, value, trustworthiness and transparency, window features, and customer service to arrive at a final score on a 5-point rating scale. 

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