Guardian Fuel & Energy is a family business that all started at the dining room table over 20 years ago. We take pride in always evolving; to keep on top of renewable alternative fuels and modern business practices. We’re committed to helping you find the best solutions for your family’s comfort and safety.
Operating out of Quaker Hill, CT and serving Southeastern Connecticut, McCarthy Heating Oil provides service in all facets of the fuel business, including complete heating system installations and air conditioning.
Serving customers throughout New England since 1960, the Osterman family goal has been to provide their customers with excellent service and value. Today, those commitments remain a priority and have contributed greatly to our continued expansion and growth.