Heating & AC Services in Allentown, Lancaster, York, Exton & Harrisburg

We help customers analyze and choose dependable, high-efficiency heating and air conditioning repair and replacement options.

(717) 204-8120


Smart Maintenance

Smart Maintenance

Maintenance just got smarter with 24/7 system monitoring, including real-time updates and emergency notifications.

Ductless system

Ductless HVAC Systems

Whether cooling a new addition or finding a solution for your whole home, ductless HVAC systems offer many options for homes with or without existing ductwork.

Boiler

Boilers & Radiant Heating

Our team of experts is trained to repair, install, and maintain oil, propane, natural gas, and electric boilers, regardless of the application.

Home HVAC icon

Geothermal Heat Pumps

Looking for a more environmentally friendly heating and cooling option? We’re a leading provider of geothermal system installations.

Indoor air quality

Indoor Air Quality Improvements

The air in your home should be of the highest quality. We offer a variety of indoor air quality products, including whole-home dehumidifiers, UV lights, air purification systems, and more.

We Offer Complete Heating & Cooling Services in Eastern & Central PA

Years in Business

Trucks on the Road

What Makes Haller Enterprises Different?

We have over 40 years of experience providing the best heating and air conditioning solutions in Pennsylvania.

Trustworthy

Our background-checked, NATE-certified technicians arrive in marked vans and recognizable uniforms with shoe covers and dropcloths to protect your home.

Reliable

Our technician will give you a 30-minute heads-up when they’re on their way for your scheduled time. You can count on them to answer any questions or concerns you may have.

Supportive

We’re here when it’s convenient for you, offering regular hours on Saturdays and emergency service 24/7, all year.

Efficient

With our online scheduling and our live chat, you can get the help you need, when you need it.

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