FLAT & LOW SLOPE ROOFING EXPERTS IN NORTHEAST OHIO
Durable Flat & Low Slope Roofing Systems Since 1977
When your roof is on the line, you need a contractor with the track record to back it up. We’ve been protecting commercial and industrial buildings across Northeast Ohio for nearly 50 years.
No shortcuts, no excuses, and no leaks.
Licensed & fully insured in Ohio & Pennsylvania
“Our parish secured four bids, and the Holko price was six figures below the nearest competitor. From day one, the personnel at Holko Enercon were outstanding to work with. All the roofs were completed on time. Even more importantly, the final cost of the three roofing projects was less than the estimate. I would recommend them for any roofing project.”
Immaculate Heart of Mary
Why Businesses Choose Holko
We may not be the biggest roofing company in Ohio — but we’re the most trusted one in your neighborhood. Here’s what nearly five decades in business looks like.
Industries We Serve
We’ve worked on practically every type of commercial and industrial building in Northeast Ohio and Western Pennsylvania. We understand the unique roofing demands that come with your industry, not just roofing in general.

Industrial Facilities
Industrial roofs take a beating. Heavy equipment vibration, chemical exposure, and extreme temperature swings are all part of the picture. We install membrane systems engineered to handle the unique stresses of industrial environments without failing prematurely. We've worked on facilities across Mahoning, Trumbull, and Mercer counties, and we understand what it takes to keep an industrial roof performing year after year.

Manufacturing Plants
Downtime is expensive in manufacturing. We plan every roofing project around your production schedule, working in phases or off-hours to keep your operations running without interruption. From large-span steel buildings to multi-bay facilities, we have the experience and crew size to tackle projects of any scale efficiently and safely.

Churches & Schools
Budget sensitivity and minimal disruption matter most for nonprofits and educational institutions. Our long-standing relationship with both churches and schools throughout the region is backed by our promise to deliver quality, long-lasting roof solutions. We're happy to work with your facility committee, provide clear documentation for board approvals, and schedule work around services, classes, and events.

Commercial Buildings
Whether it's a retail strip center, office complex, or multi-tenant property, your roof is one of the biggest investments in your building. A failure at the wrong time can mean tenant complaints, lease issues, and costly interior damage. We help commercial property owners and managers stay ahead of roofing problems with proactive inspections, reliable repairs, and full system replacements when it's time.
Our Services
Roofing Services for Businesses
Holko Enercon specializes in commercial roofing solutions for businesses, factories, industrial plants, churches, schools and more across Northeastern Ohio and Western Pennsylvania. We proudly serve Ashtabula, Columbiana, Geauga, Mahoning, Portage and Trumbull counties in Ohio and Mercer, Shenango and Venango counties in Pennsylvania.
Commercial Roof Installation
Commercial Roof Replacement
Commercial Roof Inspection
Energy Efficient Roofing Systems
Roofing Membrane Systems We Install
We specialize in single-ply membrane roofing — the industry standard for commercial flat and low-slope applications. Every system we install is backed by manufacturer warranties and our own workmanship guarantee.
PVC Roofing Membranes
PVC membranes have been a trusted choice for commercial roofing since the 1960s — and for good reason. They’re highly resistant to grease, chemicals, and fire, making them a popular option for restaurants, food processing facilities, and industrial buildings.
Heat-welded seams create watertight bonds that are actually stronger than the membrane itself, giving you a roof that’s built to last.
TPO Roofing Membranes
Thermoplastic Polyolefin (TPO) is one of the fastest-growing roofing choices in commercial construction. The reflective white surface helps reduce cooling costs, while heat-welded seams offer excellent leak resistance.
It’s a cost-effective, energy-smart option that works well on everything from warehouses to office buildings across the Mahoning Valley.
Elvaloy® Roofing Membranes
Elvaloy® KEE membranes are DuPont-engineered for exceptional flexibility and chemical resistance, making them one of the most durable choices available for demanding commercial and industrial rooftops.
If you’re looking for a long-term roofing investment that holds up in challenging environments, Elvaloy® is worth a serious look.
Service Areas Across Northeast Ohio & Western Pennsylvania
Holko Enercon proudly serves businesses across Northeast Ohio and Western Pennsylvania. The counties we serve include Ashtabula, Columbiana, Geauga, Mahoning, Portage and Trumbull counties in Ohio and Mercer, Shenango and Venango counties in Pennsylvania. Whether you need a roof repair, replacement, or inspection, our experienced team is ready to help protect your investment.
Testimonials
What Our Clients Say
Ready For your Next Project?
In Need of Roofing Support?
From minor repairs to full roof replacements, our experienced crew delivers lasting results — on time and on budget. Call us at (330) 637-0533 or reach out online and we’ll get back to you promptly.