BTC Mechanical Group
Founded in 1952 as a small wartime emergency response unit under Gilberto Nava's guidance, BTC Mechanical Group began servicing steam-heating systems and mechanical ventilation units installed in civilian defense buildings. Over decades, the team evolved into specialists in restoring pre-1960s mechanical climate control, with particular focus on rare dual-zone boiler systems that were part of the city's civil-defense infrastructure.
Expertise in diagnosing and repairing dual-zone steam-heating systems from 1940s–1950s civil-defense shelters
Specialized in sourcing and installing rationed parts for vintage mechanical ventilation units used in wartime housing
Maintains full-service emergency repair capability for no-heat/no-cool calls affecting pre-1960s residential and commercial buildings