Mon–Fri 8am–5pm

solution driven since 1948

Established 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.


For four generations we have established relationships by providing reliable service performed by professionally trained and experienced individuals.


Consistency is key. Since Leo started the company in 1948 , LJR consistently leads the way in safety, design, and innovation in the industry.


One of a kind structures require one of a kind contractors. Roth develops custom designs suited for every structure, striving for perfection and efficiency in every job.