Reliable Window Installation for Residents of Gary & Other Areas of Northern Indiana & Chicagoland

Beautiful window over kitchen sink

Trim-A-Seal has been installing energy-efficient replacement windows for homeowners in Gary and other areas throughout Northwestern Indiana since 1950, so we know finding the perfect replacement windows for your home is a big job. We understand the stress that often comes with this tedious task and are wholly prepared to streamline the process for you, helping you find windows that work for your unique style and budget.

Replacement Windows You Can Count On

We source our windows from leading manufacturers, including Sunrise Windows & Doors and Home Guard Doors & Windows, ensuring your investment is flawlessly crafted. These windows are available in custom, woodgrain, and vinyl materials and are designed to provide many advantages, such as:

Improved Energy Efficiency

All of our windows are ENERGY STAR® qualified, with frames and other components that are specially designed to reduce heat transfer into and out of the home.

Greater Convenience

Forget about frames that stick and are difficult or impossible to latch. Our windows are designed with easy-to-use hardware.

Enhanced Curb Appeal

The windows that we install aren’t just incredibly beautiful, but they are also available in a wide variety of exterior and interior colors and finishes. That means you’re sure to find a combination that perfectly complements your home exterior.

Exceptional Customization Opportunities

Because we want to be sure that your windows suit your preferences, we offer a diverse selection of wood and vinyl windows in any number of shapes and window styles.

Window Installation

A new window is only as good as its installation. This is why, at Trim-A-Seal, we work diligently to ensure your new windows are flawlessly fitted to your home for lasting high performance you can depend on. In fact, we are so confident in the quality of our installations that we back them with a five-year workmanship warranty. We also pass along transferable, non-prorated lifetime manufacturer warranties on our products – all to give you the greatest peace of mind.

If you’re interested in learning more about the replacement windows and window installation services we offer, contact Trim-A-Seal today. We proudly serve residents of Gary and surrounding areas of Northwest Indiana and Chicagoland.

“Thank you! The entire project was done to perfection. You literally created a brand new house for us. The siding, gutters, soffit, fascia, Windows, and new front door were all exactly what we expected. Your workers really took their time and it shows in the finished product. Our salesman Bruce excels at customer service. He spent the time explaining their products and made us feel that we were his #1 priority. You've earned lifetime customers!”

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“We give Adam and Richard a A+, great job enjoyed them being here on time ,friendly , explied well, couldn't ask for more!”

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Corporate Office
1500 Polk Street
Gary, IN 46407
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