Lock Haven, PA, Air Conditioning Repair & Service

Do you want a Lock Haven, PA, HVAC contractor who tops the competition? Triangle Heating & Cooling has been serving Bellefonte and Central Pennsylvania for 30 years. We are committed to comfort you can count on, no matter what it takes.

As a Trane Comfort Specialist and a Mitsubishi Electric Contractor, we offer state-of-the-art products. As a locally owned and family operated business, we guarantee superior customer service for your Lock Haven home or business.

  • HVAC repair. With us, there’s no waiting around when you need heating or air conditioning repair. Got an emergency? Call our 24/7 hotline, and we’ll be on your doorstep pronto.
  • HVAC maintenance service. Annual heating and air conditioning service are essential for the health of your equipment. Call us for an annual tune-up, and we’ll give your HVAC new life.
  • HVAC installations and HVAC replacements. When it’s time to replace your heating or cooling system, call us for a free on-site consultation. We’ll help you choose a right-sized, high-efficiency unit that gives you amazing indoor comfort and lower energy bills.
  • HVAC duct work. We can design and replace duct work for new and existing systems.

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Triangle Heating & Cooling

1758 Jacksonville Rd
Bellefonte, PA 16823
Phone: (814) 209-8113

Hours of Operation

Monday8:00 AM - 5:00 PM
Tuesday8:00 AM - 5:00 PM
Wednesday8:00 AM - 5:00 PM
Thursday8:00 AM - 5:00 PM
Friday8:00 AM - 5:00 PM

24-Hour Emergency Services Available

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High-Efficiency Products By Trane And Mitsubishi


  • Air conditioners
  • Furnaces and boilers
  • Air source and geothermal heat pumps
  • Air cleaners, air handlers and filters
  • Ductless systems
  • Humidifiers and ventilators
  • Coils
  • Thermostats, controls and zoned systems

Mitsubishi Electric

The changeable Lock Haven, PA, weather has something for everyone. Whether you like to play in the snow when it’s cold or lounge around the pool when it’s hot, Triangle Heating & Cooling can keep your indoor environment just the way you want it. From residential heating and cooling systems to commercial service and installations to commercial refrigeration repair, we’ve got everything it takes to give you a comfortable, clean and safe indoor environment in your Lock Haven home.

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