Emergency Service

24 Hours, 7 Days a Week

Bill Leary Air Conditioning & Heating is a family owned and operated business. The year 2024 marks our 35th year serving Middlesex County and the surrounding areas of Central New Jersey, Monmouth County, Somerset County, and Union County.


We provide all levels of residential and commercial heating and air conditioning sales, design, engineering, installation, service, repair, and maintenance. Click here to learn more about what you should know about Bill Leary HVAC.


Bill Leary Air Conditioning & Heating is fully insured, bonded, licensed and certified by the State of New Jersey Department of Building and Construction to work on their projects and the New Jersey Economic Development Authority to work on their public schools. 


We keep up-to-date with the most current codes, laws, and utility rebate procedures.


Our firm has been selected and approved by The State of New Jersey Department of Building & Construction to perform work on jobs up to $15,000,000. Our completed and current jobs include:


  • Universities
  • Public Schools
  • Municipal Buildings
  • Police Stations
  • And many other large and small commercial jobs

About Bill Leary Air Conditioning & Heating

Best HVAC Company in Central New Jersey - Bill Leary, Truck Photo.

Because Bill Leary Air Conditioning and Heating is a local community-minded business, we are happy to give back to the community. We are very proud to support many local and national organizations on behalf of our customers with a portion of the income from the service, the maintenance and installation work we perform.


Organizations We Support

Bill Leary HVAC is an Active Member of the Following Organizations

Better Business Bureau

"Start With Trust®


BBB's Vision: An ethical marketplace where buyers and sellers trust each other."

Bill Leary Air Conditioning and Heating is BBB Accredited Since 1995.

Learn More

ASHRAE - "American Society of Heating, Refrigerating and Air-Conditioning Engineers”


A national organization that develops and implements training programs for our industry as well as setting standards in our industry which contractors, local and state inspectors and utility companies follow.

MCAA Mechanical Contractors Association of America


"The Mechanical Contractors Association of America (MCAA) serves the unique needs of approximately 2,600 firms involved in heating, air conditioning, refrigeration, plumbing, piping, and mechanical service."

MSCA Mechanical Service Contractors Association


"MSCA is the leading organization for HVACR contractors, providing education, marketing, and labor/management services to assure its contractor members deliver quality performance, value and expertise for all building system needs."
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