Looking For Madison Oil?
You’re In The Right Place.

Proudly Continuing The Service You Trust

Madison Oil joined J.J. Sullivan more than a decade ago, and we continue serving local customers with dependable fuel delivery and professional heating and cooling service.

  • Heating Oil And Propane Delivery
  • Heating And Air Conditioning Service
  • Tank Installation And Replacement
  • 24 7 Emergency Repairs
Contact Our Local Team
Play Video

Serving Connecticut For Over 100 Years

For over 100 years, J.J. Sullivan has been a trusted name in home comfort throughout New Haven County

  • Established In 1923
  • Locally Owned And Operated
  • Generations Of Customer Relationships
  • Built On Integrity And Reliability
Get In Touch With J.J. Sullivan
Play Video

Still Have Questions?

Our team is happy to help. Reach out and we will make sure you are connected with the right department quickly.

(203) 453-2781