Thermally Broken Steel Window Profile | Features, Advantages, Disadvantages & Pricing

Key Takeaways
- Thermally broken steel windows provide superior energy efficiency by reducing thermal transfer between the interior and exterior of your home.
- These windows combine aesthetic appeal with durability, which makes them a long-lasting choice for any home design.
- While initially more expensive, their energy savings and low maintenance can offset the cost over time.
- Installation of thermally broken steel windows requires professional expertise for optimal performance.
- Panda Windows & Doors focuses solely on providing custom products of the utmost quality.
What Are Thermally Broken Windows
When you hear the term "thermally broken windows," it might sound a bit technical, but it's quite simple.
A thermally broken window has a non-conductive material inserted between the interior and exterior of the frame. This "break" interrupts the thermal bridge to prevent heat from passing through the window frame.
Since our founding in 1991, Panda Windows & Doors has specialized in state-of-the-art custom glass wall systems for both residential and commercial spaces. Operating from our manufacturing facility in Las Vegas, Nevada, we have been at the forefront of innovation for over 30 years. Our product offerings, which include over 80 high-end options, such as pivot doors, French doors, folding doors, lift & slides, multi-slides, horizontal sliding walls, and operable windows, are available in a range of materials, including aluminum, steel, stainless steel, bronze, solid wood, and aluminum-wood clad.
Our company is widely recognized for its award-winning designs, engineering solutions, and rapid delivery times. We ensure that our customers throughout the U.S. and Caribbean receive their products within 6-10 weeks. Our company is trusted by leading architectural firms and glaziers nationwide, and we stand as the premier manufacturer of custom luxury windows and doors in the United States.
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Key Features Of Thermally Broken Steel Windows
Materials Used
Thermally broken windows are crafted using high-quality metal like steel, which is a good conductor of heat. The addition of a thermal break material, usually a nonmetal like polyamide, creates an effective barrier against heat transfer.
Design and Aesthetics
These windows look just like standard windows and can be customized just as you like with your choice of finish and color. So, prefer a classic black frame or want it to have a bold color? There's a thermally broken steel window to suit your taste.
Energy Performance Ratings
Thermally broken steel windows are rated highly for energy performance for their ability to reduce heat transfer. These ratings are provided by organizations like the National Fenestration Rating Council (NFRC), which evaluates windows based on their U-factor, solar heat gain coefficient, and visible transmittance.
Pro Tip: U-factor should be low, solar heat gain coefficient should be low, and visible transmittance should be high for better energy efficiency.
Advantages Of Thermally Broken Steel Windows

Thermally broken steel windows improve energy efficiency and the comfort of your space.
Energy Efficiency Benefits
By significantly reducing heat transfer, these windows help maintain a consistent indoor temperature and reduce the need for heating and cooling. This means lower energy bills!
Enhanced Comfort
In addition to energy savings, thermally broken steel windows can improve indoor comfort. With less heat escaping in the winter and entering in the summer, you'll enjoy a more stable and comfortable living environment year-round.
Durability and Longevity
Since these windows are made from strong materials like steel, they are durable as well. Thus, you won't have to worry about frequent repairs or replacements, saving you time and money in the long run.
Environmental Impact
Choosing thermally broken steel windows is an environmentally responsible choice as well. By reducing energy consumption, these windows help decrease your home's carbon footprint. Plus, steel is highly recyclable. Thus, it ends up being reused instead of dumped.
Disadvantages Of Thermally Broken Windows
Cost Considerations
These windows tend to be more expensive than traditional options, primarily due to the materials and manufacturing processes involved. The investment can be significant, especially if you're replacing all the windows in your home.
That said, the energy efficiency and durability of these windows can offset their higher upfront price over time.
Installation Challenges
Installing thermally broken steel windows requires precision and expertise. Improper installation can lead to issues such as air leaks and reduced energy efficiency - negating the benefits these windows offer.
Maintenance Requirements
Although thermally broken steel windows are low maintenance compared to other materials, they still require some upkeep for longevity. Regular cleaning and occasional inspections are necessary to keep them looking and performing their best. Fortunately, this maintenance is minimal compared to the upkeep required for other window types, such as wood.
How Much Does Thermally Broken Steel Windows Cost?
On average, thermally broken windows cost $325 - $850 in the US as per Modernize.
Factors Influencing Cost
- The size and complexity of the window design
- Custom finishes and color options
- Installation costs, which vary by region and installer
- Additional features such as soundproofing or security enhancements
Choose Panda Windows & Doors For Thermally Broken Steel Windows

Panda Windows & Doors have many types of thermally broken windows including casement, folding, and hopper.
Company Overview
Panda Windows & Doors has been a pioneer in the industry for over 30 years, specializing in custom window and door solutions (including thermally broken steel windows) that cater to both residential and commercial clients.
Our team of experts works closely with you to understand your needs and provide you with a personalized solution. This commitment to quality craftsmanship is why we are trusted by clients like Microsoft, Starbucks, and Peloton.
Why Choose Us
- Unmatched Customization: With your choice of finish, color, and additional features, we give you unlimited customization options!
- Variety: Our extensive selection of thermally broken products spans all types of windows, including casements, hoppers, and awnings.
- Energy Efficiency: Our thermally broken steel windows, combined with low-E glass and advanced weather stripping, deliver superior energy efficiency for any climate.
- NFRC Tested: Our products are independently tested by the NFRC so you can be sure of their performance.
Reach out to us to learn more about our products and get a free quote.
Frequently Asked Questions (FAQ)
How long do thermally broken windows last?
With proper care and maintenance, thermally broken steel windows can last for decades. Their durability is one of their standout features, as steel is resistant to warping, shrinking, and corrosion.
Can I install thermally broken steel windows myself?
While some home improvement projects can be tackled as DIY, installing thermally broken steel windows is best left to professionals. Improper installation can lead to issues such as air leaks, reduced energy efficiency, and potential damage to the windows.
Are thermally broken windows worth the investment?
Absolutely. Although the initial cost of thermally broken steel windows may be higher than other options, the long-term benefits like energy savings, durability, and low maintenance make them a worthwhile investment.
How do I maintain thermally broken windows?
Regular cleaning with mild soap and water will keep the frames and glass looking their best. Avoid using abrasive cleaners or tools that could damage the surface. Also, periodically check the seals and hardware for any signs of wear or damage and address them promptly.
Are Panda products compatible with smart home systems?
Yes, our products can be customized to be compatible with a wide range of smart home systems. Click here to get started with us.