Ontario Refrigeration Service IncHVAC in Ontario, California

Ontario Refrigeration Service Inc. offers comprehensive HVAC solutions, including air‑conditioning, refrigeration, and automation services. The company emphasizes energy‑efficient controls and system optimization, backed by over 60 years of industry experience. With 12 regional offices, it serves California, Arizona, Nevada, Utah, Texas, and Colorado, providing reliable maintenance and support for commercial and industrial clients.