Limited Time Offer:

Save $200 With Your Heating Oil Delivery

When it comes to heating oil delivery, reliability matters.

For decades, we proudly served Connecticut homeowners with dependable fuel delivery and exceptional customer care.

Our commitment to timely service and consistent value ensures your home stays warm and worry-free all season long.

We Offer:

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

(203) 453-2781

Claim Your $200 Savings

Form Here

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.

Request Service

Experience the Difference with Our Heating Oil Delivery

Keeping your home or business warm takes more than just fuel—it takes dependable service you can count on. We provide reliable heating oil delivery tailored to households, businesses, and high-demand facilities across Connecticut.

Our team ensures you always have the fuel you need, offering flexible delivery options, budget-friendly payment plans, and responsive customer care.

Partnering with us means peace of mind, knowing your heating needs are covered season after season.

Claim your Savings

View The Full Site Here