Residential Heating, Cooling and Plumbing Contractor
Serving Monroe, Northampton, and Lehigh, PA
and parts of NJ

CJA Mechanical is a family-owned business that wants to make you a part of our family and not just know you as an account number. We want to help make your life easier by giving you the peace of mind that we will be there when you call for residential heating, cooling, or plumbing services. The next time your HVAC system goes out, call us for a service call. We offer a complete range of residential heating, cooling, and IAQ (Indoor Air Quality) equipment from name brands. We install most types of thermostats.
We started this business in 2011 from the ground and worked over the years to expand and slowly grow with the goal of one day leaving the business to our children. 

We don't have fixed prices. Every estimate for repairs and installs is put together to be tailored to your specific needs allowing us to offer you the most cost effective pricing. We provide free estimates for replacement of units. 

Our company offers 24/7 emergency service. Bookmark our website. Save our phone number for fast reliable service. Please call us to schedule a free estimate.

Residential Heating and Cooling System Repair, Maintenance and Installation Services Include:

  • Furnace Installation & Repair
  • Heater Installation & Repair
  • A/C Installation & Repair
  • Propane and Natural Gas Furnaces
  • Ductless A/C Services
  • Flame Sensor Repair
  • Emergency Services
  • Thermostat Repair

Additional Residential Heating and Cooling Services

  • Spring and Fall Cleaning & Inspection
  • Oil Burners
  • Heat Pumps
  • Boilers
  • Preventive Maintenance
  • Ductless Systems
  • Air-Purification Systems
  • Dehumidifiers
Please call us to schedule a free estimate.
Residential heating and cooling contractor serving the following counties:
  • Monroe
  • Northampton
  • Warren county, NJ
  • Parts of Morris County, NJ
  • Lehigh
  • Bucks
  • Carbon
  • Parts of Hunterdon County, NJ