Trim-A-Seal is a locally owned and family operated Exterior Home Improvement company serving Merrillville, Gary, Hammond, Lafayette, South Bend, Fort Wayne, Valparaiso, Schererville, Chicago Heights, Bourbonnais and all the cities in between.
We provide homeowners the highest quality replacement windows, entry doors, vinyl siding, seamless gutters, roofing, motorized and non-motorized awnings and more. Ask about our Low Price Guarantee. Call today for a free in home estimate.
Since 1950 we have been a family company built on honesty, trust, and excellent customer service. Through the years we have grown from being just a window and siding store to becoming one of the area’s leading sources for name brand home improvement products.
Window, Door & Siding Store Proudly Serving
Serving Crown Point, Highland, Munster, Hobart, Dyer, Lansing, Calumet City, Chesterton, Griffith, East Chicago, Whiting, St. John, Lake Station, Portage, Winfield, La Porte, South Chicago, Kouts, North Judson, Demotte, Roselawn, Cedar Lake, Lowell, Kankakee, Manteno, Tinley Park, Oak Lawn, Harvey and Orland Park. For a full list of the areas we serve throughout Indiana and Illinois, please CLICK HERE.
To Schedule a Free Estimate Call:
+1 (800) 217-6355
Merrillville, IN 46410
Trim-A-Seal Corporate Office
1500 Polk Street
Gary, Indiana 46407
Trim-A-Seal Munster Office
Hours of Operation
Monday-Friday 9am - 5pm
Saturday 9am - 12pm
Owens Corning and CertainTeed Preferred vinyl siding contractor Crown Point Indiana | Preferred Roofing Contractor Merrillville Indiana | Certainteed, Alcoa, Variform Vinyl Siding Installation in Hammond Indiana | HomeGuard, Sunrise Window Company Gary Indiana | Metal & Aluminum Awning Manufacturer and Installer Northwest Indiana & East Chicago | Entry Door Installation Chesterton Indiana