Installing High-Quality Doors in Gary, IN, and Beyond Since 1950

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Your doors do more than just provide entry and exit. They keep your property secure, contribute to energy efficiency, and make a lasting first impression. But when your doors become outdated, damaged, or poorly insulated, they can create a range of frustrating problems, like:
Increased Energy Bills: Poor insulation allows heat and cold air to escape, forcing your HVAC system to work harder.
Compromised Security: Weak or deteriorating doors make your home more vulnerable to break-ins.
Weather Damage: An ill-fitting door can let in rain, wind, and drafts - leading to moisture damage and discomfort.
Noise Intrusion: Older doors generally do not provide adequate soundproofing, making your home noisier than it should be.
If your doors are causing any of these problems, it may be time for an upgrade. Trim-A-Seal has been installing high-quality doors in Gary, IN, and the surrounding area since 1950. With over 70 years of experience, we know what it takes to deliver outstanding results every time.
What Types of Doors Do We Offer to Indiana Homeowners?
Here at Trim-A-Seal, we offer a wide selection of premium doors that are designed to boost both the style and function of your Indiana home. Our most popular options include:
Security Doors: Engineered for maximum durability, these doors come with a powdered aluminum frame, tempered safety glass, and airtight weatherproofing seals.
Entry Doors: Customizable with optional sidelights and available in various materials and textures, these doors are built for beauty and performance.
Storm Doors: Featuring a steel frame, tempered glass, and a high-security locking system, these doors provide excellent protection against extreme weather.
Fiberframe™ Sliding Patio Doors: With impact-rated glass options, these sliding doors can withstand heavy rainfall and hurricane-force winds.
French Doors: Designed to bring in natural light while maintaining energy efficiency, these doors offer an elegant and low-maintenance solution.
We source all our doors from leading manufacturers, including Home Guard Doors & Windows, Sunrise Windows & Doors, and Albany Doors, so no matter which of these options you choose, you can rest easy knowing your new doors are built to last.
Featured Customer Review
Bruce was very personable and professional. He educated me on the product options, enhancements and construction quality of Trim-A-Seal door products. Bruce will insure you get quality and satisfaction with exactly what you want to purchase. Thanks, I will return when it's time to get my windows.
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What Are the Benefits of Upgrading Your Doors with Trim-A-Seal?
Improved Energy Efficiency
Modern doors help seal in heat during winter and keep your home cool in summer.
Enhanced Security
High-quality locks and durable materials provide better protection against break-ins.
Better Weather Resistance
Our doors are designed to withstand Northwest Indiana’s ever-changing weather conditions.
Long-Term Durability
With high-quality materials and expert installation, you can feel confident that your new doors will last for years.

The best part? With Trim-A-Seal, these benefits don’t have to cost an arm and a leg. Check out our Seal the Deal page to see all our latest discounts on door installation in Northwest Indiana.
What to Expect When You Hire Our Gary Door Installation Team
At Trim-A-Seal, we believe in a hassle-free installation process that prioritizes your satisfaction. When you choose us, you can expect:
Clear Communication: From your initial consultation to the final walkthrough, we keep you informed at every step.
Professional Installation: Our experienced technicians ensure a perfect fit and flawless performance.
Industry-Leading Warranties: We stand by our products and workmanship with strong warranties for peace of mind.
Respect for Your House: We work efficiently, clean up thoroughly, and treat your home with care.
Are you ready to experience the Trim-A-Seal difference for yourself? If so, contact our Gary, IN, door installation team today to schedule your free consultation! We can’t wait to work with you!
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Transform Your Residence into the Dream Home You’ve Always Wanted
Trim-A-Seal is a reliable partner you can trust to treat you and your home with respect. Our unparalleled experience in the home improvement industry has made us the leading source for homeowners in need of affordable, durable, and beautiful upgrades.
Outstanding Reviews
The installers that came to the house were very personable and cleaned everything up, installation was quick and we are enjoying our sunsetter so much. Thanks for the great service. We are telling everyone about Trim-A-Seal!!!!
The technician was very professional and completed the work in a timely manner. The craftsmen was excellent and we would recommend your organization to our friends.
I am completely satisfied with Trim-A-Seal installers. They did a great job installing my SunSetter motorized awning. They explained and showed me how it worked and answered all of my questions. I definitely would recommend them.
Just finished our exterior project. New siding, windows, gutters, soffit, and front door. it's literally like having a brand new house! We love the finished product and love the professionalism from everyone involved. You've gained lifelong customers
We are thrilled & more than satisfied with how our garage floor turned out. Pat was our salesman and presented the product and installation process professionally and without pressure. Tom and Jerome were our installation team and were professional, conscientious, thorough and were very hard working. Based on our experience we would not hesitate to recommend Trim-A-Seal.
Mike was our salesman and he was great to work with , no hard sell , no bad mouthing his competitors, unlike the other company that came out. The installers were extremely friendly , explained everything they were doing and cleaned up after they were done. Highly recommend.
We love our Sunsetter awning! From the time we met with the friendly and helpful salesperson from Trim-A-Seal to the efficient and talented installation crew everyone was courteous and professional. We face west with the sun reflecting off the lake so an awning was a must. We are very happy with our choice of product as well as Trim-A-Seal.
We give Adam and Richard a A+, great job enjoyed them being here on time ,friendly , explied well, couldn't ask for more!
We struggled to find a gutter guard capable to protect our new home surrounded by trees. Gutter Helmet is the CLEAR right choice. Trim A Seal handled the installation professionally and on time. We got what we were promised!!
Our Installers, Holland and Darrell, both did an exceptional job of installing our new awning. They explained the operation of the unit thoroughly. Top notch team!
I had maintenance done on my gutters and I was pleased with the work. Would use this company again.
This morning trimASeal came out to start on my siding, met with Adam and Richard, we did the walk around, Adam explained everything so I understood it, and he is very easy to talk with and very knowledgeable, will post after the job is done to.
I am completely satisfied with Trim-A-Seal installers. They did a great job installing my SunSetter motorized awning. They explained and showed me how it worked and answered all of my questions. I definitely would recommend them.
Bruce was very personable and professional. He educated me on the product options, enhancements and construction quality of Trim-A-Seal door products. Bruce will insure you get quality and satisfaction with exactly what you want to purchase. Thanks, I will return when it's time to get my windows.
They took care of some unexpected problems for my grandfather and did what they could to make things work. Adam and Richard did a wonderful job.
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