Now offering plumbing services!


If you are searching for a reliable Bioheat Plus® fuel delivery and full-service HVAC provider in or around Mystic, Connecticut, look no further than Densmore Oil Company. We serve the oil heating service, air conditioning service, and fuel delivery needs of homeowners throughout Eastern Connecticut and Southwestern Rhode Island. Whether you need an HVAC repair or are interested in upgrading to high-efficiency equipment, we sell and install boilers, furnaces, water heaters, central air conditioning systems, and ductless mini-splits.

Fill Out the Form Below to Get in Touch

Use the form on this page to contact us or request more information about our HVAC services! You can also reach us by email, phone, or mailing to our office. If you’d like to place a Bioheat Plus® fuel order, please call (860) 536-7927; we do not take orders through our website at this time.

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Densmore Oil Company
26 Old Stonington Road
Stonington, CT 06378

(860) 536-7927

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