A Family-Owned Window and Siding Company Serving Portage, IN
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Upgrade Your Home in Portage, IN, With Trusted Siding, Windows, & More
Trim-A-Seal has been a reliable partner to Portage homeowners since 1950. As a third-generation, family-owned company, our team understands the challenges of maintaining a home in Northwest Indiana. From unpredictable winters to humid summers, old windows, faded siding, and outdated outdoor spaces can lower comfort and curb appeal. That’s why communication, craftsmanship, and support from a locally rooted team matter so much. You can depend on us to bring lasting value and responsive service to exterior projects.
Our Home Improvement Services
Choosing the right home improvement company means accessing the best products and installation expertise for Portage’s unique climate and homes. Discover Trim-A-Seal’s most popular services available right in your neighborhood.
Siding Installation & Replacement
Give your home reliable protection and style with siding from PlyGem and CertainTeed. Our siding installations are built to withstand Portage’s weather, provide lasting color, and deliver low-maintenance, good-looking results. Learn more about siding options.
Replacement Windows
Upgrade drafty or outdated windows with energy-efficient products from trusted brands like Sunrise and Lang. Custom-fit windows minimize heat loss, transform your home’s appearance, and make year-round operation effortless. Explore our replacement windows.
Exterior Doors
Improve security and update your entry with doors from Albany and HomeGuard. We offer stylish entry, storm, and security doors that add both protection and visual appeal to Portage properties. See our door solutions.
Gutters & Gutter Guards
Protect your roofline and foundation with seamless gutters and advanced gutter guards. These solutions reduce clog risks, help prevent water damage, and minimize routine maintenance. Explore our gutter installations.
Motorized Shade Solutions & Sunsetter Awnings
Make the most of Portage’s outdoor living season with Sunsetter retractable awnings, specialty motorized screens, and permanent shade structures. Add sun control, shade-on-demand, and style for patios or decks. Discover our shade solutions.
Concrete Floor Coatings
Transform old or worn concrete in garages and basements with Fortress Floors polyurea coatings. These coatings are four times stronger than typical epoxy and deliver a clean, durable finish that stands up to seasonal changes. See our concrete coating options.
Our Home Improvement Installation Process
Home improvement should be simple and stress-free. Trim-A-Seal guides Portage homeowners through every step:
Schedule a convenient phone or online consultation.
Receive a thorough on-site assessment and a transparent, detailed quote.
Experience professional installation from trained teams who respect your home.
Finish with a final walkthrough and ongoing support from a team that stands by its work.
Why Trim-A-Seal Is the Local Choice
For generations, families throughout Portage have trusted Trim-A-Seal for siding, windows, doors, gutters, and outdoor upgrades. As a family-owned company with deep community ties, we bring:
Local expertise and references from completed projects
Flexible product options from industry-leading brands
Strong product and installation warranties backed by decades of service
Dedication to supporting customers long after installation is complete
You’ll find proof of our commitment throughout Portage neighborhoods, where attention to detail and personal service make the difference between another contractor and a partner.
See Our Work & Hear from Portage Homeowners
Discover how Trim-A-Seal transforms homes across Portage through our project gallery, which features local examples of siding, floor coatings, windows, and more. Our reputation is built on service and satisfaction, which is why so many neighbors recommend us and mention our team by name in their reviews. See what’s possible for your home by browsing completed projects and reading stories from fellow Portage homeowners.
Serving Portage & Northwest Indiana
Trim-A-Seal responds quickly across Portage and nearby Northwest Indiana communities. Whether your home is near Imagination Glen Park, along Willowcreek Road, or in a lakeside neighborhood, our teams know the region and its building styles. Wondering if you’re in our coverage area? See our complete list of service locations for more details.
Answers to Your Portage Home Improvement Questions
How soon can installation start after an estimate?
Most projects are scheduled promptly after your estimate and material selection, with timeframes discussed during your consultation.
Do you offer product options for historic homes or new builds?
Yes, we tailor recommendations, whether your property is a mid-century gem or recent construction, to suit your home’s unique needs.
What makes polyurea garage coatings better than epoxy for Portage winters?
Polyurea coatings are stronger and more flexible than epoxy, making them ideal for freeze-thaw cycles and daily use by heavy vehicles in Indiana.
Do you work with homes near the Portage waterfront or older neighborhoods?
Absolutely. Trim-A-Seal has experience across Portage, including lake-adjacent homes and established neighborhoods, matching solutions to local styles and conditions.
Ready to Improve Your Home?
Schedule your home consultation in Portage, IN, today. Start with a friendly, no-pressure estimate and see how easy home improvement can be.
Featured Customer Review
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.
Learn More About Our Products
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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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