Solution Driven Since 1948

Founded in 1948 as a sheet metal fabrications and roofing company, we have grown into a multifaceted group of professionals who are passionately driven to provide the best products & service available. Whether it be as mechanical/industrial contracting, commercial roofing, environmental controls, or HVAC systems design & service, our team of dedicated men and women utilize over sixty years of knowledge and experience to deliver the most effective solutions for our customers.

Tradition. Passion. Vision. They remain our core values in today’s fast paced construction world. Rooted in the Rochester community for 62 years our goal is simple. From designing a high efficient heating & cooling system, installing plumbing that recycles rain water for fire protection use to installing a green roof and analyzing energy consumption, the Leo J. Roth experience will exceed your expectations.


The Leo J. Roth Corporation was founded by Leo J. Roth out of his home’s garage as a Sheet Metal & Roofing company in Rochester New York, 1948.

Other key dates in our history:

1955: HVAC Division est.
1962: HVAC Service Division est.
1988: Plumbing & Piping Division est.

On Leo Roth’s 40th anniversary a lower case scripted letter “r” was adopted as the corporate logo by third generation President, Tom Roth.

1995: Building Controls Division est.
1999: LJR relocates its headquarters from Clifford Avenue in Rochester NY to Holt Road in Webster.

Roth Residential Heating & Cooling est.

2007: Building Controls Division evolves into
Roth Controls, Energy Management Solutions
2011: Roth Green Energy est.
2014: Open Buffalo, New York Office
Leo & Genevieve Roth (1948)
Leo & Genevieve Roth (1948)
Leo J. Roth Shop (1950)
Leo J. Roth Shop (1950)
Len DeWolfe servicing equipment (1963)
Len DeWolfe servicing equipment (1963)