Providing Northwest Indiana and Chicagoland with Premium Vinyl Siding

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First impressions matter - especially when it comes to your house. Faded, cracked, or outdated siding can make even the nicest property look neglected. Whether you’re planning to sell or just want to improve your home’s appearance, new siding is one of the best ways to boost your curb appeal.
Of course, new vinyl siding does more than just enhance your home’s appearance. It also offers a wide range of other benefits, including:
No More Painting: Vinyl siding never needs to be repainted - just wash it occasionally!
Built to Last: Designed to withstand harsh weather, moisture, and pests.
Saves You Money: Helps to improve insulation and reduce your energy bills.
Affordable & Long-Lasting: A cost-effective investment that stands the test of time.
Choosing the right siding contractor matters. The wrong company can leave you with installation headaches, surprise costs, or worse - siding that doesn’t last.
Here at Trim-A-Seal, we offer vinyl siding installation in Lake County and Porter County. We also serve homeowners in South Chicago. If you’d like us to go to work for you, give us a call today!
Featured Customer Review
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.
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Why Indiana Homeowners Love Working with Trim-A-Seal
Here’s why Northwest Indiana and Chicagoland homeowners trust us with their siding projects:
We Keep You in the Loop
No confusing jargon. No disappearing acts. When you work with us, you’ll enjoy clear communication throughout your project.
Customer Service Comes First
We’re here to answer all your questions, work around your schedule, and make sure you are 100% happy.
Our Installers Know Their Stuff
Certified by the Vinyl Siding Institute, our skilled team guarantees top-tier installation with every job.
We Stick to the Plan
From timelines to budgets, and expectations. What we promise is what we deliver.
Peace of Mind Warranties
Your siding is covered by a manufacturer’s warranty as well as a five-year workmanship warranty.
We’ll Always Be Here
We’ve been serving homeowners in Gary and Northwest Indiana since 1950 - so you can be sure we’ll always be here if you need us.

How Much Does Vinyl Siding Cost in Northwest Indiana?
When it comes to vinyl siding, costs depend on a variety of factors. Here's a quick breakdown of what might influence the price of your Indiana siding project:
The Size of Your Home: Bigger homes need more materials, which increases costs.
The Type of Siding You Choose: Higher-end options may cost more but can provide better longevity.
Labor & Installation Complexity: If old siding needs to be removed or your home has intricate design details, installation costs may be a little higher.
Additional Features: Trim, soffits, and fascia upgrades can add to the overall price.
At Trim-A-Seal, we value our customers and want to make sure you get the best value for your investment. That’s why we offer fantastic deals on our vinyl siding services, so you can enjoy a beautiful home without breaking the bank. Check out our Seal the Deal page to see how we’re making it easier for you!
Contact Our Siding Installation Team in Gary, IN, Today
Ready to upgrade the exterior of your Porter or Lake County home? Let’s make it happen!
The Trim-A-Seal team is here to help you pick the perfect vinyl siding for your house - at a price that fits your budget. Call us today or fill out our online form to schedule your free estimate.

Financing Available

Seal the Deal

Inspiration for Your Next Home Remodel
Check Out Our Exceptional Work
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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