Heating and Cooling Air Conditioning

Demilio Heating and Cooling is considered to be an essential business. We remain open during this very important epidemic. All Pennsylvanians have an important role to play in stopping the spread of COVID-19 and saving lives. We have and will take the necessary precautions to keep you and our staff during this epidemic healthy and safe.


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We provide installation and repair on Gas and Oil Furnaces, Heat Pumps, Air Conditioners, and Boilers. We service Greensburg, Irwin and North Huntingdon, Youngwood and New Stanton, Latrobe and Ligonier, Delmont and Export and more. Demilio Heating and Cooling will provide you with the ultimate in heating and air conditioning with a custom system. 

Demilio, Inc. is dedicated to providing the best possible solution for your home or business. You can count on us to provide you with a system and solution that fits your unique needs and since we’ve installed many systems in this area, we’ve earned a reputation for doing the job right the first time.

Demilio, Inc is a recognized leader in the Westmoreland County central air conditioning & heating industry serving homeowners and businesses. Dedicated to providing ultimate heating, cooling and air conditioning solutions, heat pumps, furnaces, boilers, and air conditioners. Demilio, Inc is a family-owned Pennsylvania heating and air conditioner contractor invested in providing you with the very finest strategies, heating and cooling systems at reasonable cost.

Whether you need installation of a new residential heating system, cooling system, service, replacement or improvement, Demilio makes it our priority to provide it efficiently, cost-effectively, and professionally. We offer Carrier products, expertise, friendly advice and opportunities that far exceed the norm, beginning with our Always-Free In-Home Estimates for heating installations, air conditioning installations, furnace installations, and air duct cleaning/indoor air quality services throughout Greensburg, Pennsylvania and surrounding communities in Westmoreland County.We also offer heating repairs, air conditioning repairs and furnace repairs throughout Greensburg and Western Pennsylvania. We can also work with you to arrange financing on this work, with approved credit.

Find out more about our NEW Indoor Air Quality Service, and energy efficient tax credits for new heating and air conditioning systems.


How clean is the air your family is breathing? Imagine how many allergens, viruses, and bacteria contaminate the air in your house and you are breathing.We have affordable solutions to eliminate the contaminates and improve the purity of the air you breathe in your home. Clean air helps boost the health and increase the immunity of your family. Call us to discuss options available. (724) 838-9360


DEMILIO HEATING AND COOLING IS THE MOST TRUSTED PROVIDER OF ALL OF THE FOLLOWING SERVICES:

  • AIR CONDITIONING REPAIR
  • AIR CONDITIONING SERVICE
  • AIR CONDITIONING INSTALLATION
  • HEATING REPAIR
  • HEATING SERVICE
  • HEATING INSTALLATION
  • DUCTLESS HVAC
  • GEOTHERMAL HEATING
  • BOILERS