Why Aluminum Double Hung Windows Deserve a Serious Look
Aluminum double hung windows are one of the most versatile and durable window options available for Chicago-area homeowners — and they’re often misunderstood.
Here’s a quick answer to what they are and why they matter:
| Feature | What It Means for You |
|---|---|
| Two operable sashes | Open from the top, bottom, or both for flexible ventilation |
| Aluminum frame | Slim, strong profiles that last for decades |
| Thermal break technology | Reduces heat transfer to keep your home comfortable year-round |
| Tilt-in sashes | Clean both sides of the glass without going outside |
| Architectural versatility | Works in historic renovations, modern builds, and everything in between |
If your home has drafty windows, rising energy bills, or outdated frames that leak air and noise, aluminum double hung windows are worth understanding — whether you’re replacing a single window or upgrading an entire home.
Chicago winters are brutal. The right window doesn’t just look good — it works hard.
I’m Steve Mlynek, CEO and founder of HomeBuild Windows, Doors & Siding, and over my 20+ years installing and replacing windows across Chicago and the northwest suburbs, I’ve seen how the right aluminum double hung windows can transform both the comfort and curb appeal of a home. Let’s break down everything you need to know to make a smart, confident decision.
Aluminum double hung windows terms you need:
Defining the Aluminum Double Hung Window
At its core, a double hung window consists of two sashes (the frames holding the glass) that slide vertically within the main frame. Unlike a single hung window, where only the bottom sash moves, aluminum double hung windows allow you to slide both the top and bottom sashes up and down.
This dual-operability is a game-changer for airflow. By opening the top sash and the bottom sash simultaneously, you create a natural convection current: cool air enters through the bottom while warm air escapes through the top. When these sashes are crafted from high-grade extruded aluminum, you get a window that combines this classic functionality with incredible structural integrity. Aluminum doesn’t warp, rot, or swell, making it a reliable choice for the fluctuating humidity levels we experience in the Midwest.
For many homeowners in areas like Arlington Heights or Barrington, double hung window replacement is the preferred way to modernize a home while maintaining a traditional aesthetic.
What Makes Aluminum Double Hung Windows Unique?
The standout feature of aluminum is its strength-to-weight ratio. Because aluminum is so strong, the frames can be made much narrower than vinyl or wood. These “slim sightlines” mean you get more glass and less frame, maximizing your view of the outdoors.
In architectural circles, these are often referred to as “architectural grade” windows. Products like the Ultimate Double Hung G2 Window features showcase how modern engineering allows for massive window sizes—up to 5.5 feet wide by 10.5 feet high—without sacrificing stability. This strength is essential for the windy conditions of the Chicago lakefront and the surrounding suburbs.
Comparing Aluminum to Vinyl and Wood
When choosing materials, it’s all about balancing maintenance, longevity, and aesthetics.
- Wood Windows: Offer unmatched beauty and insulation but require significant maintenance (painting and staining) to prevent rot.
- Vinyl Windows: Are low-maintenance and cost-effective but can sometimes look “bulky” due to the thickness required for structural stability.
- Aluminum Windows: Offer the best of both worlds in terms of durability. They are virtually maintenance-free and provide a sleek, modern look that vinyl can’t replicate.
Many premium windows actually use a hybrid approach known as “cladding.” For instance, a window might have a warm wood interior for aesthetics and a heavy-duty extruded aluminum exterior to fight off the elements. You can find a Detailed Product Description of how these materials work together to create a high-performance barrier for your home.
Structural Performance and the Midwest Climate
In Chicago, a window is more than just a piece of glass; it’s a shield. Aluminum double hung windows are engineered to meet some of the toughest performance standards in the industry.
One of the most important ratings to look for is the AW-PG50 performance class. This rating indicates that the window is “Architectural Grade” and can withstand the pressure and wind loads found in mid-rise and high-rise buildings. If it’s tough enough for a skyscraper downtown, it’s more than capable of protecting your home in Schaumburg or Glenview during a summer thunderstorm.
Engineering for High-Rise and Residential Strength
The secret to this strength lies in the “wall thickness” of the aluminum. High-quality frames often feature a .080 inch nominal wall thickness throughout the mainframe and sash. To put that in perspective, many standard windows use much thinner materials that can flex under pressure.
When you combine this thickness with mechanically-joined corners that are sealed to stay square and true, you get a window with an H-C50 structural rating. This means it can handle a wind pressure load of 75 PSF (pounds per square foot). You can review the Test Report Information to see how these windows perform under extreme laboratory conditions.
Weather Protection in Chicago Winters
Drafts are the enemy of home comfort. To combat the biting Chicago wind, we look for windows with advanced weather-stripping. Premium aluminum windows utilize a four-sided fin seal weather strip that creates a multi-layered barrier against air infiltration.
For the best results in our climate, we always recommend windows with thermal barriers. Older aluminum windows were known for being “cold” because metal conducts temperature. Modern windows solve this by “breaking” the frame with a non-conductive material (like polyurethane) that prevents the cold outside air from chilling the inside of the frame. This improves the Condensation Resistance Factor, ensuring your windows don’t “sweat” when the heater is running. For more on these specs, check out the Complete Product Information.
Energy Efficiency and Thermal Technology in Aluminum Double Hung Windows
A common myth is that aluminum windows aren’t energy efficient. While that might have been true in the 1970s, today’s aluminum double hung windows are thermal powerhouses.
The key metrics to watch are the U-Factor and the Solar Heat Gain Coefficient (SHGC). A U-Factor of 0.40 or lower is excellent for our region, indicating that the window is highly effective at keeping heat inside during the winter. You can see how these ratings translate to real-world savings in this guide to Residential Aluminum Double Hung Windows performance.
Advanced Glazing and Glass Options
The glass itself does a lot of the heavy lifting. We offer several glass packages to suit your specific needs:
- Low-E Coatings: These microscopic metallic layers reflect heat back to its source. In winter, it keeps your furnace’s heat inside; in summer, it keeps the sun’s heat out.
- Argon Gas: Filling the space between panes with Argon (which is denser than air) slows down thermal transfer significantly.
- Triple-Pane Glass: For maximum sound reduction and insulation, three panes of glass create two layers of protection.
If you’re dealing with particularly drafty areas, you might find more info about double hung windows replacement helpful in understanding which glass package is right for your home’s orientation.
Thermal Breaks in Aluminum Double Hung Windows
As mentioned, a “thermal break” is a must-have. By using Duraseal warm edge spacers and polymer structural foam, manufacturers can essentially decouple the interior and exterior of the window frame. This means the freezing January air in Lake Zurich stays on the outside of the aluminum, while the interior frame remains room temperature. This technology is what allows aluminum windows to meet and exceed ENERGY STAR® requirements.
Customization: Aesthetics, Hardware, and Glass Options
One of the best parts of choosing aluminum double hung windows is the sheer variety of design options. Because the frames are powder-coated or anodized, the finish is incredibly durable.
Most high-end manufacturers offer finishes that meet AAMA 2605 standards, which is the highest rating for color retention and scratch resistance. Whether you want a classic “White,” a bold “Black,” or a “Radiant Metallic” finish, you have over 50 color options to choose from. For some visual ideas, we often point our clients to Instagram Inspiration to see how these colors look on actual homes.
Grille Patterns and Historic Authenticity
If you live in a historic part of Evanston or Wilmette, you might be required to maintain a specific look. Aluminum windows can replicate historic designs perfectly through:
- Simulated Divided Lites (SDL): Grilles are attached to the outside of the glass to give the appearance of individual panes.
- Putty Profiles: The frame is shaped to mimic the look of old-fashioned glazed windows.
- Oriel Style: This is where the top sash is smaller than the bottom sash, a classic look for many Victorian and Colonial homes.
You can see these details in the Spec Sheet – Pella Reserve.
Functional Hardware and Screen Innovations
Hardware isn’t just about looks—it’s about how the window feels when you use it. We look for spiral balance systems or constant force balances that make opening a heavy sash feel effortless.
For screens, the innovation has been massive. We are big fans of FlexScreen technology, which was famously featured on Shark Tank. It’s a nearly invisible, flexible frame that snaps into place without the bulky aluminum borders of traditional screens. You can Watch FlexScreen on Shark Tank to see exactly how it works.
Installation and Maintenance for Chicago Homeowners
Even the best window will fail if it isn’t installed correctly. At HomeBuild, we believe in “The Right Way, the First Time.” This means following AAMA standards for flashing and sealing to ensure no water ever reaches your home’s structure.
Whether we are using “new construction” fins for a room addition or “panning” systems for a replacement project, every job we do is owner-supervised. We know that a window replacement is a big investment, and we want you to have peace of mind. You can even use our Track Order Resources to stay updated on your project’s progress.
Maintenance and Tilt-In Cleaning
One of the biggest complaints about old windows is how hard they are to clean, especially on the second floor. Aluminum double hung windows solve this with “wash mode.” Both the top and bottom sashes tilt inward, allowing you to clean the exterior glass from the safety of your living room.
No more ladders, no more professional window cleaners. Just a quick tilt, a wipe with a microfiber cloth, and you’re done. You can See Demonstration of window operation to see just how easy the tilt-in feature is to use.
Professional Installation Considerations
When we visit a home in Elk Grove Village or Palatine, we often find that “drafty windows” are actually the result of poor original installation or failing seals. Replacing these with high-performance aluminum units doesn’t just stop the drafts; it significantly boosts your home’s curb appeal and property value.
For a deeper dive into the technical side of things, the Pro Window & Door Guide offers a wealth of information on how professional-grade windows are designed to last a lifetime.
Frequently Asked Questions about Aluminum Windows
How do I clean aluminum double hung windows?
It’s simple! Engage the tilt-latches on the sashes to swing them into the room. Use a mild detergent mixed with water and a microfiber cloth for the glass. For the aluminum frames, a simple wipe-down with a damp cloth is usually all that’s needed to keep them looking brand new.
Are aluminum windows energy efficient enough for Chicago?
Yes, provided they feature thermal break technology. When paired with Low-E glass and Argon gas, aluminum windows are highly efficient and meet ENERGY STAR® standards, making them more than capable of handling the -20°F winters and 90°F summers we see in Chicagoland.
Can aluminum windows be used in historic renovations?
Absolutely. Because aluminum can be extruded into very thin, strong profiles, it can mimic the narrow checkrails of 19th-century wood windows. Many of our projects in historic districts have been approved because the aluminum frames maintain the architectural accuracy required by local landmark commissions.
Conclusion
Choosing the right windows for your home is a decision that will impact your comfort and your wallet for decades. Aluminum double hung windows offer a unique combination of strength, slim aesthetics, and low-maintenance durability that is hard to beat, especially in our demanding Midwest climate.
At HomeBuild Windows, Doors & Siding, we take pride in being a locally owned contractor with over 20 years of experience. As an Elite Platinum Pella® Certified Contractor and an Andersen Certified Contractor, we have the expertise to help you select the perfect windows and ensure they are installed to the highest standards.
Our owner-supervised installations and commitment to quality workmanship have earned us the Angi Super Service Award and over 200 positive Google reviews from your neighbors in the Chicago northwest suburbs.
If you’re ready to upgrade your home’s exterior, we’re here to help. We work with the industry’s best brands—including Pella, Marvin, and Alside—to deliver reliable, energy-efficient solutions.
Contact us today for a free consultation and let’s discuss how we can improve your home’s comfort and value with our Double Hung Windows Replacement Services.
