Our Service Areas
Find Your Perfect Upgrade
Windows
Siding
Roofing
Concrete Coatings
Gutters
Doors
Shade Solutions
Northern Indiana & Chicagoland
Energy- Efficient Replacement Windows

Sunrise Windows backed by Lifetime Warranty!

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Northwestern Indiana & Chicagoland
CertainTeed and PlyGem Vinyl Siding

Quality Affordable Exterior Siding!

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Northwestern Indiana & Chicagoland
Residential GAF Roofing Company

Roof Replacement or Roof Repair!

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Northern Indiana & Chicagoland
Custom Garage Floors by Penntek

One Day Installation!

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Northwestern Indiana
Gutter Helmet & Gutter Systems

Lifetime Warranty Commercial Grade!

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Northwestern Indiana
Storm Doors, Security Doors, French & Patio Doors

Enhanced Security & Durability

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Northern Indiana, Eastern Illinois & Western Michigan
Awnings, Patio Covers, Security Shutters

Enjoy the Outdoors!

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The Exterior Home Improvement Company Trusted Among Residents in Northern Indiana, Western Illinois & Western Michigan

Trim-A-Seal has been a locally owned and family-operated home improvement company since 1950. Three-generations later, we are still the leading choice for homeowners throughout Northern Indiana and Chicagoland who are in need of innovative products and personalized home remodeling services at an affordable price.

Our Service Areas

We proudly serve residents throughout Northern Indiana and Chicagoland, including the following areas:

Our Range of Services

Over our years in business, we have expanded our services and now install a full range of top-tier home improvement upgrades from leading manufacturers, including:

  • Replacement windows by Sunrise Windows & Doors and Home Guard Doors & Windows
  • Vinyl siding by Ply Gem® and CertainTeed
  • Entry doors by Albany Doors
  • Security and storm doors by Home Guard Doors & Windows
  • Patio doors by Sunrise Windows & Doors
  • Residential roof shingles by GAF
  • Gutters and gutter protection systems by Gutter Helmet®
  • Concrete coatings by Penntek™ Industrial Coatings
  • Outdoor shade options from SunSetter® and Americana Outdoors
  • Rolling security shutters by Wheatbelt

Furthermore, all of our products are backed with a minimum of a five-year workmanship warranty and come with applicable manufacturer warranties for added peace of mind.

To learn more about our home remodeling products and services, contact Trim-A-Seal today! We are wholly prepared to provide you with the upgrades you need.

“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.”

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“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.”

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Corporate Office
1500 Polk Street
Gary, IN 46407
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