Haller Technician Repairing Heating System
Haller HVAC Technician Repairing System

Certified, Experienced & Professional HVAC Contractors in Lancaster, PA

If you’re like most people, worrying about fixing your heating and air conditioning system isn’t your idea of a good time. We get that. That’s why our NATE-certified HVAC experts are here to provide 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 and financing for unavoidable repair costs. We also strive to maintain a smooth and transparent customer experience.

Contact us to schedule your HVAC appointment today. We also offer great HVAC coupons designed to help you save.

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.

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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Fast HVAC Repairs

Nothing lasts forever. When your HVAC systems fail, our technicians are here to diagnose and repair them in no time.

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Heating & Cooling Installations

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


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.

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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.

HVAC Specials & Discounts

  • Drain Cleaning

    $50 OFF

    Any Repair

  • Home HVAC icon

    FREE Estimate

    on a New HVAC System – Virtual or In-Home Appointments!

  • Indoor air quality

    FREE Air Scrubber

    with Full HVAC System Install

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

Haller Technicians Working In The field

What Makes Haller Enterprises Different?

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

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

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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.

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

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

Our Central Pennsylvania HVAC Residential Service Area

Haller Locations Served Near You
A map of eastern Pennsylvania