McCarthy Heating Oil Service

P.O. Box 332, 50 Route 32
Quaker Hill, CT 06375
Tel: 860-443-2839

McCarthy Heating Oil Truck

Serving Southeastern Connecticut since 1961

Technicians installing Mr. Slim ductless cooling and heating system


We employ skilled licensed professional energy technicians whom we are continually training in the latest technology to better serve our customers.

  • Annual efficiency check-up
  • 24 hour full service plan (including $4000 worth of parts and labor)
  • Central air conditioning efficiency check-up and inspection
  • Complete heating system replacements
  • Complete central air conditioning installations
  • Electric heat conversions
  • NEW: Mitsubishi Diamond Contractor / Mr. Slim split ductless air conditioning and heating professionals

Learn more about our preventative maintenance plans and our fuel delivery plans.

Heating and cooling systems and hot water heaters