Low-Maintenance Vinyl Windows for Homeowners in Merrillville, IN

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Vinyl windows are incredibly easy to maintain, making them one of the best choices for Merrillville, Indiana, homeowners who don’t want to deal with excessive upkeep. Trim-A-Seal installs high-end vinyl windows that resist chipping, cracking, peeling, and fading, so you can enjoy beautiful windows without ever having to scrape or repaint the frames. We’re a third-generation company that’s been installing high-end home improvement products since our founding in 1950, and we’re proud to help our customers update their homes in ways that also enhance their lives.

High-Quality Replacement Windows From Trusted Manufacturers

At Trim-A-Seal, we take our commitment to quality seriously. Our vinyl windows are expertly manufactured in the USA by name-brand companies you can trust and offer many benefits in addition to their low-maintenance design. For example, theses replacement windows are:

Energy efficient and will improve your home’s thermal performance
Expertly engineered to provide years of like-new performance
Available in a wide variety of beautiful styles and frame colors
Backed by a lifetime product warranty

Professional Vinyl Window Installations

As a full-service remodeling company, we not only provide vinyl windows but also install them. Our technicians have an unparalleled level of experience and will complete your window replacement flawlessly, ensuring a perfect fit and a beautiful appearance. We back our workmanship with a five-year guarantee, so you can rest easy knowing your investment in replacement windows is protected.

Contact Trim-A-Seal today to learn more about our vinyl windows. Our phones are always answered by our friendly representatives who would be happy to help you schedule a free consultation at your home in Merrillville, IN.

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Featured Customer Review

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

Dan C.

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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.

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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!!!!

Merry E.

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.

Ernestine J.

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.

Florence B.

Dan C.

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.

Eileen Roe

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.

Shelley Black

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.

Paula Belcher

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

Ann Y.

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!!

Art C.

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!

Burt M.

I had maintenance done on my gutters and I was pleased with the work. Would use this company again.

Darlene L.

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.

Edward C.

Florence B.

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.

Sandra C.

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.

Stephanie C.