John Duffy Energy

Enjoy indoor comfort in every season with help from the technicians at John Duff Energy. Local homeowners and business owners alike rely on our heating and cooling solutions to keep their indoor temperature perfect year-round. Call our crew when you need installation, replacement, repair, or maintenance from a dependable HVAC contractor in Northern and Central New Jersey.

Count On Our Crew

Your satisfaction is the cornerstone of our success. As a locally owned and operated business, we rely on your support to keep moving forward, which is why we are dedicated to customer satisfaction. Count on us to deliver the HVAC solutions you need quickly and correctly every time. Some of the advantages of hiring us include:

  • Free Written Estimates
  • NATE-Certified Technicians
  • High-Quality Work at Competitive Prices
  • Punctual Service & Prompt Project Completion

We are based in Newark, NJ, and proudly serve residential and commercial clients from throughout the area. Contact us for assistance Monday through Friday, 8:00 a.m. to 5:00 p.m.

Why Choose John Duffy Energy?

  • Locally Owned & Operated
  • Written Estimates
  • Punctual Service