Updated June 2026

Best Flat & Low-Slope Roofing Contractors in Toledo

The 5 best flat & low-slope roofing contractors serving Toledo, OH — independently researched and ranked. No paid placements.

Flat and low-slope roofing in Toledo relies on membrane systems — TPO, EPDM, modified bitumen, and built-up roofing — common on commercial buildings and many modern homes. The 5 contractors below were selected from our full Toledo top 10 as the strongest for flat & low-slope work, ranked by experience, manufacturer certifications, BBB standing, and verified reputation.

Toledo's flat and low-slope roofing market reflects the city's industrial heritage and its geography at the western end of Lake Erie. Lake-effect precipitation, while less intense than Cleveland's eastern lake-effect zone, still brings measurable lake-enhanced snowfall to Lucas County in winter, and the area's elevated humidity through the warm months creates sustained moisture exposure that accelerates membrane aging on improperly maintained flat roofs. Fully adhered TPO and EPDM systems dominate the Northwest Ohio commercial membrane market, with modified bitumen remaining common on the older industrial and commercial building stock that dates from Toledo's glass and auto-industry peak.

The city's inner-ring neighborhoods — Old West End, Westgate, Deveaux — include a meaningful stock of flat-roofed multi-family and commercial properties that have been through one or more membrane replacement cycles and are approaching the need for another. Toledo's industrial corridors along the Maumee River and along I-75 carry large-footprint low-slope roofscapes that require periodic inspection and planned replacement rather than reactive response. Carlisle, CertainTeed, and Owens Corning certifications are among the manufacturer credentials that indicate a Toledo-area contractor has met factory training requirements for commercial systems.

Quick Comparison

Rank Company Specialty Experience BBB Website
1 Holt Roofing Company, Inc. Best Overall Since 1947 Listed Visit
2 Nordmann Roofing Co., Inc. Best for Commercial Roofing Since 1931 A+ Accredited Visit
3 Ace Roofing & Gutters of Toledo Best for Flat Roofs Since 1980 A+ Accredited Visit
4 Salgau Roofing Inc. Best for Slate & Tile Repairs Since 1998 Visit
5 Anthony Wayne Roofing and Construction Best for Storm & Industrial Roofing 30+ Yrs Visit

Detailed Reviews

#2

Nordmann Roofing Co., Inc.

Best for Commercial Roofing
ExperienceSince 1931 (90+ Years)
BBB StatusA+ Accredited
SpecialtyCommercial & Industrial
Service AreaToledo & Northwest Ohio

Toledo's oldest roofing firm on this list, in business since 1931 and BBB accredited since 1973 with an A+ rating. Nordmann is a commercial and industrial specialist offering asphalt, modified bitumen and coal-tar systems, metal roofing, roof inspection, moisture detection and sheet-metal fabrication of copings, fascias and scuppers. Its project history includes large local installations such as Hollywood Casino Toledo.

Commercial Roofing Metal Roofing Roof Maintenance Roof Inspection Moisture Detection Sheet Metal Fabrication Modified Bitumen Coal-Tar Systems
Visit Nordmann Roofing Co., Inc.
#3

Ace Roofing & Gutters of Toledo

Best for Flat Roofs
ExperienceSince 1980 (40+ Years)
BBB StatusA+ Accredited
SpecialtyResidential & Commercial
Service AreaToledo & surrounding counties

Toledo contractor in business since 1980, designated an Owens Corning Platinum Preferred Contractor and carrying a BBB A+ rating. Ace handles a broad range of flat and low-slope commercial systems including TPO, PVC, rubber/EPDM, torch-down, modified bitumen and roof coatings, alongside residential shingle, metal and wood-shake roofing. It also installs seamless gutters, siding and replacement windows and doors.

Flat Roofing Commercial Roofing TPO Roofing EPDM Roofing Roof Coatings Roof Replacement Seamless Gutters Roof Repair
Visit Ace Roofing & Gutters of Toledo
#4

Salgau Roofing Inc.

Best for Slate & Tile Repairs
ExperienceSince 1998 (27+ Years)
BBB Status
SpecialtyResidential & Commercial Repair
Service AreaToledo & surrounding area

Local Toledo roofer in business since 1998, serving the metro for more than 27 years. Salgau handles asphalt shingle and EPDM/flat roof replacement and specializes in repairs that many companies avoid, including slate and ceramic-tile roof repairs, chimney and pipe flashing, downspouts and roof coatings for both residential and commercial buildings.

Roof Replacement Roof Repair Slate Roof Repair Tile Roof Repair Flat Roofing Flashing Repair Roof Coatings Downspout Repair
Visit Salgau Roofing Inc.
#5

Anthony Wayne Roofing and Construction

Best for Storm & Industrial Roofing
Experience30+ Years
BBB Status
SpecialtyCommercial & Residential
Service AreaToledo & Northwest Ohio

Northwest Ohio contractor with over 30 years serving Toledo, focused on commercial and industrial work alongside residential roofs. It installs and repairs flat and sloped systems in EPDM, TPO, PVC, metal, fiberglass, torch-on and tar-and-gravel, plus protective roof coatings, and provides emergency repair for hail, wind, water and storm damage across multiple Ohio counties.

Commercial Roofing Flat Roofing EPDM Roofing TPO Roofing Metal Roofing Storm Damage Roof Coatings Roof Repair
Visit Anthony Wayne Roofing and Construction

When Flat & Low-Slope Roofing Is the Right Call in Toledo and Northwest Ohio

An industrial or commercial building on the Maumee River corridor needs membrane replacement

Toledo's industrial real estate along the Maumee is aging, and many buildings carry membrane systems — original built-up, first-generation EPDM, or early modified bitumen — that are at or beyond end of life. Infrared scanning after a rainfall event is the standard diagnostic tool for identifying insulation moisture, which determines whether a recover or full tear-off is the appropriate path. Northwest Ohio contractors with commercial flat-roof experience understand the insulation assembly configurations common to Toledo's industrial building stock.

A multi-family or commercial property in an inner-ring Toledo neighborhood needs assessment

Toledo's Old West End and surrounding neighborhoods have a dense inventory of flat-roofed structures where roof condition affects both rental income and building value simultaneously. An independent condition assessment before a sale, refinancing, or lease renewal gives the property owner a factual basis for capital planning decisions. Contractors familiar with the specific substrate conditions and membrane generations common to Toledo's inner-ring building stock are best positioned to provide an accurate remaining-life estimate rather than a generic industry average.

Lake-Erie-adjacent humidity has caused seam failure or membrane blistering

Elevated ambient humidity through Toledo's long warm season creates specific risks for flat-roof systems that lack adequate vapor retarder design. Moisture diffusing upward through improperly designed assemblies can accumulate beneath the membrane and cause blistering, which compromises adhesion and seam integrity. When a flat roof shows widespread blistering rather than localized damage, the vapor retarder design of any replacement assembly needs careful review to prevent the same failure mode from recurring.

Frequently Asked Questions

How many flat & low-slope roofing contractors are in Toledo?

Our directory lists 5 independently verified flat & low-slope roofing contractors serving Toledo, Ohio, ranked by experience, certifications and reputation. Holt Roofing Company, Inc. is ranked #1. There are no paid placements.

How do I choose a flat & low-slope roofer in Toledo?

Confirm licensing and insurance for Ohio, ask for flat & low-slope project references in Toledo, get multiple written quotes, and check each contractor's BBB standing. Every company listed here has been independently researched.

How does lake-effect snow from Lake Erie affect flat roofs in Toledo?

Toledo's lake-effect exposure is generally moderate compared to Cleveland or Buffalo, but enhanced lake precipitation still delivers wet, dense snow that converts to significant melt volume in a short period. Flat roof drains sized for rainfall may underperform during lake-effect events if primary drain flows are obstructed by ice or debris. Confirming drain clearance and scupper function before winter is the single most cost-effective flat-roof maintenance step in Northwest Ohio. Emergency overflow scuppers at an appropriate parapet height below the coping are the standard safety backup.

What manufacturer certifications are most relevant for Toledo commercial flat roofing?

Carlisle SynTec certifications are particularly relevant in Northwest Ohio given that Carlisle products are widely specified in the region's commercial and industrial market. Holt Roofing — one of the area's most established flat-roof contractors — is a Carlisle Certified Installer. CertainTeed and Owens Corning commercial certifications are also meaningful for projects specifying those product lines. At the tender stage, requesting the contractor's current certification documentation for the specific product being specified is preferable to relying on a general claim of manufacturer relationship.

Is a building permit required for flat-roof recover or replacement in Toledo?

The City of Toledo generally requires a building permit for re-roofing work, including flat-roof membrane replacement. The permit process includes a final inspection and confirms that the work meets Ohio Building Code requirements. Recover projects — where a new membrane is applied over an existing substrate — may have a simplified permit pathway under certain conditions, but this should be confirmed with the Toledo Division of Building Inspection before work begins. Experienced local contractors handle permit applications routinely and include this step in their standard project scope.

Flat Roof Guides

Other Roofing Specialties in Toledo