HVAC contractor · California

Duff Mechanical Services

Aguanga, CA 92536

License active1 of 1 license in force

Duff Mechanical Services in Aguanga, CA appears in the licensing records of California with one license, mainly C-20 Warm-Air Heating, Ventilating and Air-Conditioning. Its current license number is 1109379, valid until August 31, 2027. Record imported from the state data on November 4, 2026.