Haller Technician Repairing Heating System
Haller HVAC Technician Repairing System

Certified, Experienced & Professional HVAC Services in Lancaster, PA

If you’re like most people, worrying about fixing your heating and cooling system is not your idea of a good time. We get that. That’s why our NATE-certified HVAC experts are here to provide you peace of mind by resolving any heating and cooling issues quickly and properly.

We offer a variety of cooling and heating solutions that fit any budget, including preventative maintenance solutions and financing for those unavoidable repair costs. Along with providing our expertise, we strive to keep a smooth and transparent customer experience.

Heating & Cooling Services in Allentown, Lancaster, York, Exton and Harrisburg

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

HVAC Maintenance

Heating & Cooling Maintenance

An ounce of prevention is worth a pound of cure when it comes to your heating and cooling systems. Routine maintenance is key to prolonging the life of your systems.

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Like most things, nothing lasts forever. When unexpected failures happen, our technicians are here to diagnose and repair your heating and cooling systems in no time.

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From a simple ductless mini-split to a full duct installation, we prioritize you and your home with our fast-track timeframe, providing the best HVAC solutions to you as fast as possible.

Smart Maintenance

Smart Maintenance

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

Ductless system

Ductless 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.



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


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

Indoor air quality

Indoor Air Quality

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.

Specials & Discounts

  • Save $2,000

    on a New HVAC System

  • Indoor air quality

    $100 OFF

    an Air Scrubber Installation

  • FREE

    HVAC System Estimate

  • Drain Cleaning

    $50 OFF

    Any Repair

Haller HVAC technician outside van with new unit inside

Additional Heating & Cooling Services in Eastern & Central PA

Haller Technicians Working In The field

What Makes Haller Heating & Cooling Different

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


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


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


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


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

Our Central Pennsylvania HVAC Residential Service Area

  • Chester County
  • Dauphin County
  • Lancaster County
  • Lehigh County
  • York Count
  • And More!
Haller Locations Served Near You
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