Alamo Roofing Contractors provides TPO, EPDM, modified bitumen, torch down, PVC, and commercial roof coatings for Merrillville homeowners and businesses. Located just 20 minutes away in Portage, Indiana, we are a GAF Master Elite contractor since 2021 — one of fewer than 3% of U.S. roofers to hold this certification. We offer the GAF Golden Pledge warranty — 50 years material coverage and 25 years workmanship coverage backed directly by GAF. We serve all of Merrillville including Taft Street corridor, Broadway, Southlake Mall area, Ross Township, Pierce Township, near the Southlake Mall, US-30 commercial corridor, Merrillville Community Park, and Indiana University Northwest Merrillville campus.

Commercial Roofing in Merrillville, IN

Merrillville’s commercial corridor includes retail centers, industrial properties, office buildings, and multi-unit residential — all requiring professional commercial roofing with manufacturer-backed warranties.

Commercial Systems We Install in Merrillville

TPO — Heat-welded seams, white reflective surface, dominant system for new commercial construction.
EPDM — Proven rubber membrane, outstanding cold-weather flexibility for Indiana’s freeze-thaw climate.
Modified Bitumen — Multi-layer waterproofing for maximum protection on Merrillville commercial properties.
PVC — Chemical-resistant membrane for restaurants, industrial facilities, and buildings with rooftop HVAC.
Commercial Roof Coatings — Extend existing commercial roof life 10-15 years at fraction of replacement cost.

Free Merrillville Commercial Roof Assessment

We inspect your Merrillville commercial property — including moisture testing — before recommending coating vs. repair vs. replacement. We don’t recommend coating when the roof doesn’t qualify.

Permit authority: Lake County Plan Commission Building Department ((219) 755-3700)

Alamo holds an Indiana contractor license and Illinois unlimited roofing license. All commercial projects are fully permitted and inspected.

What Our Customers Say

Davis was very helpful and understanding of our problem with the roof. He also did a very good job explaining our options and new roofing systems. Alamo is a great company and they do great work. I would highly recommend!

Ross Peterson

Google Review — ★★★★★

We had a tree fall on our house and it damaged our roof and siding. We called the guy who put our roof on 5 years prior and he wouldn’t respond to us. We called Alamo and our worries were over! Alamo worked with our insurance company but went way beyond. Insurance only wanted to repair the damage even though it was 2/3 damaged. Our shingles would be mismatched but Alamo gave us a new roof and brand new siding! They even covered our deductible! They’re professional, do great work and we called them back the next year to roof and side our garage so everything matches! Don’t hesitate. Call Alamo!

Nancy Luchene

Google Review — ★★★★★

Amazing service and work from Alamo! Davis was super professional in his quote and follow-thru. Thanks for a great job!

Andrea R.

Google Review — ★★★★★