Limited Time Offer:

Save $200 With Your Heating Repair Services

When it comes to heating repair, experience matters.

For years, J.J. Sullivan has been helping Connecticut homeowners stay comfortable with dependable service and expert-level support.

Our skilled technicians provide fast, reliable repairs to keep your heating system running safely and efficiently. From emergency service to routine maintenance, we’re here when you need us most.

We Offer:

Flexible delivery scheduling
Experienced and safety-trained drivers
Affordable propane prices
Trusted service with local expertise

(203) 453-2781

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What Our Customers Say

"It's been about 2 months since JJ Sullivan installed a mini split AC/heat pump system in our home, and it has worked perfectly, especially during this recent hot weather... JJ Sullivan is an "old school" oil company and they are there when you need them. There is a reason they have been around for 100 years!!"

- Charles K., Google

"Absolutely Amazing service!! The service technician was knowledgeable and kind and fixed my problem in 30 minutes on a Saturday morning. Highly recommend them."

- Lela Stokes, Facebook

"Excellent service, both for installation and routine service. They have a fast response to emergencies; I had to call them once on the weekend during the holiday season."

- Jennifer Hart, Google

"Last minute propane delivery before major storm will help ensure the generator is working. Fantastic customer service- thank you. If you find other providers don’t try to help you when you need it, as we did with other providers in town, you should switch to JJ Sullivan."

- Darcy Mayo Dugas, Facebook

Stay Comfortable Year-Round

From reliable fuel delivery to expert heating and cooling service,
J.J. Sullivan is your trusted partner for home comfort.

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Experience the difference with our propane services

Managing propane safety at your facility involves more than storing tanks properly. We help you implement scalable protocols for warehouses, manufacturing plants, schools, and other high-use environments.

Our experts can review your site layout, train your staff, and ensure your operation complies with safety standards.

Partnering with us gives your team the tools and confidence to prevent incidents before they happen.

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