Flat & Low-sloped Roofing Solutions: Inspections, Installations, Repairs, Replacements, and Maintenance
Sentry Roofing is a Commercial & Industrial roofing contractor specializing in flat, low-sloped, and metal roofing systems for new or active facilities.
Roofing Systems Engineered for Flat & Low-sloped roofs in the Midwest
PVC is used extensively across a broad range of industrial and everyday applications and is one of the most widely used polymers in the world.
TPO’s advantages include hot-air welded seams, a set of varying colors and thicknesses as well as reinforced membranes with strong abrasion, tear and puncture resistance.
Metal retrofit roofing involves the installation of infill, then an overlay of insulation to create a flat surface for the single-ply roofing membrane.
Commercial & industrial facilities we work on every day. Sentry Roofing partners with owners, facility managers, and property teams across a wide range of commercial sectors:










Headquartered in Covington, Indiana, Sentry Roofing primarily serves customers throughout Indiana & Illinois, with the ability to support established clients across the Midwest and beyond.
Popular cities we serve, but not limited to:
Popular cities we serve, but not limited to:
We service premium roofing customers all across the United States so we still may be able to help!
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Primary Service Area
Service Area for clients with multiple facilities
Since 1987, Sentry Roofing has installed nearly 40 million square feet of the Duro-Last roofing system in 41 states, including Hawaii, and has annually been recognized as one of the highest quality, highest volume applicators in the nation.
Our status as an award winning Platinum Contractor and the unmatched performance history of the Duro-Last roofing system assures you will receive excellence in product, installation, and ongoing customer service.
After many years and using multiple roofing companies through those years, Tim Fowler and Sentry Roofing, Inc has by far been the absolute best company I have worked with. Not enough accolades to describe how well I enjoy working with Tim and his staff. I will continue to use Sentry Roofing for as long as I have roofing needs.
Over the past 23 years, the Metropolitan School District of Warren County has been a customer of Sentry Roofing, Inc. It has been an excellent working relationship with Sentry, due to their great customer service, workmanship and quality products.
Safety is a top priority for Sentry – it’s the first thing I see at the job site. Making sure everything’s well marked off, roped off where it needs to be, everyone is where they need to be, all the lifting and hoisting is done properly, the roof is very clean at the job site no tools and clutter laying around. Everything’s in its proper place all the time.
We have been a client with them over 30 years.
They are honest, respond quickly, have great customer service, and take great care to make sure project quotes and work are done right the first time.
I have to really recommend Sentry for the communication they had with us and the professionalism of the crew. I didn’t even know they were up there working half the time. They weren’t loud. They were professional. They cleaned up. They were always in contact with me. I trust Sentry. They stand behind their work 100%.
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