Mitsubishi Mini Splits
Mitsubishi Electric Cooling & Heating is one of the biggest names in ductless climate control. Sentry Oil is now one of their premier-level installers. Call us for a free estimate!

Daily Oil Price
We are unable to quote a lock in price the day you call for oil. The Daily Cash Price changes every day, sometimes numerous times a day. We will do our best to give you an estimate for your delivery day. We appreciate your understanding during this time.
Delivery Route Days
Monday
- HOLDEN
- HUBBARDSTON
- PRINCETON
- RUTLAND
Tuesday
- HOLDEN
- RUTLAND
- SHREWSBURY
- STERLING
- WEST BOYLSTON
Wednesday
- BARRE
- HOLDEN
- OAKHAM
- PAXTON
- RUTLAND
- SPENCER
Thursday
- AUBURN
- HOLDEN
- LEICESTER
- MILLBURY
- ROCHDALE
- RUTLAND
- WORCESTER
Friday
- HOLDEN
- RUTLAND

A Pioneer Oil Burner and HVAC Company in Rutland, MA
Sentry Oil is a family-owned-and-operated business that has been providing contracted HVAC installations at competitive rates for more than 40 years. We believe that every customer deserves to enjoy all the comfort and warmth that a home offers, which is why we provide full-service contracts for a variety of services.

24/7 Emergency Service
You no longer have to worry when your heating system suddenly breaks or fails. We offer emergency repairs to our existing oil customers. Call us today to get assistance from our licensed oil burner technicians and certified truck drivers.
Mass Save Heat Loans & Rebates
We now offer special financing programs for all your heating and cooling needs! You may check out Mass Save’s rebates to see if you qualify. If you live where there is a municipality, please refer to your towns light department website for more information regarding rebates or loans for heating and/or cooling upgrades.
Why Choose Us
Our technicians strive to assist you in achieving the ideal home environment at all times. By providing you with technical services and support, we help keep your residential heating and cooling systems functioning at optimal levels.
Practical Options and Advantages
- Service Contract Plans
- Dependable 24/7 Emergency Assistance
- Annual Tune-Ups and Inspections
- Heating Equipment Installations
- Air Conditioning Installations
- Sentry Tank Treatment Program

Areas We Serve
Our services are available to the following towns: