5 Glass Block Window Alternatives

5 Glass Block Window Alternatives

Having the right window can transform your home’s exterior. A well designed glass block window can provide you with added privacy, style, and saftey, which is most commonly seen in home’s master bathrooms. But maybe you’re over that out-dated design and are looking for something different. A main reason why people are straying away from glass block windows is because glass blocks absorb and transfer heat very well, turning your room into a greenhouse. You’ll spend more money and energy on air conditioning to offset these effects, which are more pronounced in small areas such as a bathroom. Here we will discuss the 5 best alternatives to glass block windows.

What is Glass Block?

A glass block window, also known as a glass block or glass brick, is a type of window made from individual glass blocks or bricks that are assembled together with mortar or silicone. Each glass block is typically square or rectangular in shape and contains hollow air-filled spaces inside.

Glass block windows are often used in architectural and design applications to allow natural light to pass through while providing privacy and diffusing light. They are commonly found in bathrooms, basements, and other areas where privacy is desired, but some light transmission is still necessary.

Here are 5 Glass Block Window Alternatives

1. Vinyl Windows

Windows made of vinyl are glass panes set in plastic (or steel-reinforced) frames are a great glass block window alternative. They are low maintenance since you never have to paint or refinish them. Vinyl windows are inexpensive to install and maintain.

While glass block windows have their own unique charm and aesthetic appeal, upgrading to vinyl windows can provide significant benefits in terms of energy efficiency, security, and overall comfort. Before making a decision, it’s essential to consider your specific needs and preferences to choose the window type that best suits your home.

2. Wooden Windows

Wood windows are the best choice if you want to redecorate the color of your windows, since wood is easy to paint. They are studry and allow excess moisture to evaporate from the home, lowering the chance of mold growth.

3. Fiberglass Windows

Fiberglass windows are your versatile option since they are an eight times stronger material. These are unbreakable glass fibers woven into the frames. If well-maintained, can survive for 50+ years. Fiberglass is the most durable material available.

4. Aluminum Windows

One of the most environmentally friendly products available is aluminum windows. Aluminum is the metal choice for architects due to its durability and unique look and feel. They are the standard because they combine aesthetic appeal, comes with strength, and is cost-effective.

5. Acrylic Windows

Windows made of acrylic are simple to modify, set up, and use. Also, compared to glass, they are much more durable. The lightweight and break-resistant nature of these make them a glass substitute. The same substance has several applications, like casting resin in inks and coatings. When acrylic windows are custom-made, they can withstand significant forces.

Window Films

If you initially liked glass block windows for the privacy, keep in mind you can gain that privacy back with normal windows. Window films are adhesive sheets that can be applied directly to existing windows to provide privacy and decoration. They come in various designs, including frosted, stained glass, and decorative patterns, allowing you to customize the look of your bathroom windows.

Advantages to Updating Your Glass Block Windows:


Improved Energy Efficiency:

Vinyl windows are designed with modern insulation properties, including multiple panes of glass and gas fills, which provide better thermal insulation. This helps to reduce heat transfer, keeping your home cooler in the summer and warmer in the winter. Glass block windows, on the other hand, have lower insulating properties due to the air-filled gaps inside the blocks.

Enhanced Noise Reduction:

Vinyl windows with multiple panes of glass can significantly reduce outside noise infiltration compared to glass block windows. This is especially beneficial if you live in a noisy neighborhood or near busy streets.

Better Security:

Vinyl windows typically come with secure locking mechanisms, making them more secure than glass block windows, which may have vulnerable mortar joints. Vinyl windows also have optional security features, such as reinforced glass and multi-point locking systems, to further enhance home safety.

Greater Design Flexibility:

Vinyl windows come in various styles, shapes, and sizes, allowing you to choose the design that best fits your home’s aesthetic and architectural style. They can be customized to match your preferences, and you can also add features like grilles or decorative glass for added visual appeal.

Low Maintenance:

Vinyl windows are relatively low-maintenance, as they do not require painting or sealing like wood windows. They are resistant to rot, corrosion, and fading, making them a durable and long-lasting option.


Vinyl windows are generally more affordable than glass block windows. The installation costs are often lower as well, making it a cost-effective choice for upgrading your windows.

Improved Resale Value:

Upgrading to energy-efficient vinyl windows can enhance the resale value of your home. Potential buyers appreciate the benefits of modern, energy-saving windows, which can make your property more appealing on the real estate market.

In Conclusion

Glass block windows are great to let natural light in while maintaining privacy, but they are not everyone’s cup of tea. Due to its high cost, this material requires special attention. Glass blocks need to be cleaned constantly, they are bulky, fragile, and just not practical. If you’re stuck on which type of window to choose for your bathroom, we hope this blog post helped you get more clarity on which alternative to go with. If you’re interested in reading more about these alternatives and their pros and cons, click here.

If you’re looking to update your out-dated glass block window bathroom, let Nicholas Design Build transform your space! As a premier Indianapolis home remodeling contractor, we’re here to get the job done. Read more here about our bathroom remodeling services!