Densmore Oil Company: Your Trusted HVAC Partner in Mystic, CT
Since 1949, Densmore Oil Company in Mystic, CT has been the go-to name for keeping homes and businesses comfortable year-round. As a family-owned provider, they offer reliable heating oil delivery, HVAC services, and water heater solutions across Eastern Connecticut and Southwestern Rhode Island. Their team is available for both scheduled maintenance and emergency repairs, ensuring your heating or cooling system is never down for long.
Business Overview
Densmore Oil Company serves residential and commercial clients with a focus on personal, dependable service. Their skilled employees, who participate in ongoing training, handle everything from routine HVAC check-ups to urgent system failures. Whether it's a historic home in Mystic or a modern office in Norwich, they understand the unique needs of local buildings.
Key Services
Densmore Oil Company provides a full range of heating, cooling, and plumbing services:
- HVAC Installation & Repair: Expert setup, replacement, and fixing of heating and air conditioning systems.
- HVAC Maintenance: Regular tune-ups to improve efficiency and prevent breakdowns, especially important with Connecticut's humid summers and cold winters.
- Water Heater Services: Installation and repair of water heaters for consistent hot water.
- Heating Oil & Support: Automatic fuel delivery, service plans, and oil tank protection.
Areas Served
Densmore Oil Company covers a wide area including Middletown, Norwich, Glastonbury, New London, Mansfield, Windham, Waterford, Montville, Madison, East Lyme, Willimantic, Killingly, Colchester, Plainfield, Ledyard, and many more towns in Eastern CT and Southwestern RI. Their deep knowledge of local housing styles—from coastal properties near Mystic to inland farms—helps them tailor solutions effectively.
Company History
Founded by Ray and Donna Densmore in their Old Mystic home in 1949, the company started as a heating oil delivery service. Over 70 years, it has grown to include HVAC, air conditioning, and plumbing services while staying family-owned. Now run by their son Mark and granddaughter Jamie from a restored building on Water Street in downtown Mystic, CT, Densmore remains rooted in customer satisfaction.
Leadership
Mark and Jamie Densmore continue the family tradition of hands-on management. Based in the heart of Mystic, they are active in the community, offering discounts for active military and veterans. Their local presence means they understand the climate challenges and building codes of the region.
Specialties & Highlights
- Family-Owned Since 1949: Three generations of dedicated service.
- Automatic Fuel Delivery & Service Plans: Takes the worry out of heating oil management.
- Military & Veteran Discounts: A way to give back to those who serve.
- Community Involvement: Supports local initiatives and earns positive customer reviews.
- Full-Service HVAC & Plumbing: One call for heating, cooling, and water heater needs.
Why Locals Choose Densmore Oil Company
Residents and businesses in Mystic, CT and surrounding areas rely on Densmore Oil Company for their long-standing reputation, reliable service, and local expertise. With a focus on keeping families warm in winter and cool in summer, they combine old-fashioned values with up-to-date training. For HVAC, water heaters, or heating oil, Densmore Oil Company in Mystic, CT delivers trust built over seven decades.
Contact Information
Densmore Oil Company
: 1 Water St, Mystic, CT 6355
Business Services
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
- Water heater installation
- Water heater repair
Business Location & Hours
| Mon: | 8:00 AM - 4:30 PM |
| Tue: | 8:00 AM - 4:30 PM |
| Wed: | 8:00 AM - 4:30 PM |
| Thu: | 8:00 AM - 4:30 PM |
| Fri: | 8:00 AM - 4:30 PM |
| Sat: | Closed |
| Sun: | Closed |























