Total Systems Roofing has provided re-roofing, new construction, maintenance, and emergency repair services to commercial and industrial clients for over 20 years. 

The Chicago‑based roofing firm will continue to operate under its existing name, as OSR seeks to leverage its resources, technology and infrastructure to scale more quickly.

“Total Systems Roofing has built a strong reputation for quality workmanship, responsiveness and long‑standing customer relationships in the Chicagoland area and beyond,” said Luke Coleman, chief executive officer of O’Hara’s Son Roofing. 

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“We are excited to welcome TSR into the OSR family and further strengthen our ability to deliver exceptional value to clients in the Midwest and across the country,” Coleman added.  

Tracy Dougherty and Richard Dougherty, founders of Total Systems Roofing, added that “joining forces with O’Hara’s Son Roofing allows us to scale our operations while maintaining the values and craftsmanship that define our company.”

The founders noted that the partnership will provide TSR with additional resources, which should allow faster growth without compromising its commitment to quality and customer service.

O’Hara’s Son Roofing was itself acquired by an affiliate of Angeles Equity Partners in June 2024 to establish a nationwide commercial roofing platform. 

At the time, Sam Heischuber, managing director at Angeles Equity Partners, said OSR “presented a compelling opportunity in a highly fragmented industry” to acquire one of the largest providers of commercial roofing services and to build out a platform that participates in all phases of the roofing life cycle. 

Angeles Equity Partners views commercial roofing as a sector with favorable macroeconomic tailwinds, including nearshoring trends, infrastructure investment and resurgent domestic manufacturing. 

OSR’s first acquisition under Angeles Equity Partners took place last month when it acquired Starkweather Roofing, a Phoenix‑area commercial roofing specialist founded in 1996. 

With the addition of Total Systems Roofing, OSR now operates in multiple regions through a national platform designed to “drive operational efficiency, safety and innovation.”

Angeles Equity Partners, headquartered in Los Angeles, focuses on niche industrial and critical service businesses. Since acquiring O’Hara’s Son Roofing, Angeles has supported OSR’s leadership in pursuing a roll‑up strategy aimed at consolidating the highly fragmented commercial roofing market.

Financial terms of the Total Systems Roofing acquisition were not disclosed. Massumi + Consoli LLP served as legal counsel to OSR.

For more information, visit oharasson.com.