Who We Are

John S Demree Heating & Air Conditioning is a family-owned HVAC company that specializes in residential HVAC Service and Installation. Our detail-oriented mindset and emphasis on honest business practices are built on over 30 years of work experience and industry knowledge. We provide exceptional service in southern and central New Jersey.

What We Do

We offer services including, but not limited to:

• Seasonal / Annual Inspections & Maintenance
• Thermostat Replacement / Programming
• Heating / Air Conditioning System Service Calls
• Existing HVAC System Replacement
• New HVAC System Installation
• Ductless Mini-Split System Service & Installation