HVAC Services in Ontario, CA

Ontario has a strong mix of residential and commercial work. Newer master-planned communities like Ontario Ranch on the south side, established neighborhoods to the north, and a major commercial corridor where we handle a lot of light commercial rooftop unit service.

HVAC services we provide in Ontario

• AC repair — fast, honest diagnosis and repair
• AC installation — properly sized, properly installed
• Furnace repair — safe and quick
• Furnace installation — high-efficiency replacements
• Mini-split installation — for ADUs, additions, and zoned cooling
• Maintenance plans — twice-yearly tune-ups
• Indoor air quality — filtration, UV, humidity
• Commercial HVAC — for Ontario businesses and property managers
• 24/7 emergency service

Neighborhoods we serve in Ontario

Ontario Ranch, Downtown Ontario, North Ontario, Westwind, and surrounding areas of Ontario, CA 91761.

Why Ontario homeowners choose FlowProHVAC

• Family-owned and locally based — we're not a national chain
• 30+ years of HVAC experience across the Inland Empire
• Licensed, bonded, and insured in California
• Real technicians answering the phone, not call-center scripts
• Honest pricing — we tell you the cost before any work begins
• 24/7 emergency service when you need it

Schedule HVAC service in Ontario

Call us at (818) 625-4400 or request an estimate online. We respond quickly and we'll give you a realistic appointment window — not a vague "sometime today."