Quality HVAC Contractor in Central & Eastern Pennsylvania
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NATE certified, award-winning, expert technicians providing you with unparalleled service.
“We used Haller for several projects including the installation of a mini split. They are super professional, helpful, and friendly. They do great work and take the time to explain everything and answer any questions you may have. I will continue to use them!!”
— Madeline, Lancaster
Top-Rated HVAC Services Since 1981
Now Offering Same Day Appointments Afterhours and On Weekends. Just Book It!
If you’re searching for dependable HVAC services, look no further than Haller Enterprises. We offer expert HVAC repair, maintenance, installation, and replacement services you can count on. Whether you’re upgrading a thermostat, installing a humidifier or dehumidifier, or exploring high-efficiency options like geothermal systems, our team has you covered. And with our industry-leading financing, you can enjoy long-term comfort you can actually afford.
Haller strives to deliver long-lasting solutions that meet your home comfort needs. We offer free estimates for full HVAC installations, including geothermal systems and oil-to-gas conversion projects, and we’re happy to schedule consultations on evenings or weekends. Need quick repairs? We provide same-day service, and any work over $500 is eligible for financing. From air filter replacements and whole-home air filtration upgrades to complete heating and cooling system installs, our technicians deliver unmatched precision and care.
Since 1981, Haller has provided unparalleled HVAC services throughout Pennsylvania. We hire the best technicians in the industry—pros who understand everything from air filtration and humidity control to advanced geothermal technology. When you choose Haller for your HVAC needs, you can rest easy knowing we stand behind our work with a 100% satisfaction guarantee.
Contact Haller to schedule HVAC services and enjoy year-round comfort.
“I can’t say enough about how pleased we are with Haller. The guys were personable and clear with instructions for our newly installed system. Special thanks to Adam, Austin, and Jared. Best tip for those looking for HVAC service or new installation? DON’T GO ANYWHERE ELSE!”
— Vickie, Lancaster
Quality You Can Trust
Forty years ago, we began providing best-in-class HVAC service with unparalleled customer service. Today, our NATE-certified technicians are the best in the business. These licensed and insured experts perform timely installations with care and respect. You receive extraordinary mechanical and electrical services, world-class solutions, and unquestionable value—with a 100% satisfaction guarantee. Schedule a visit with our experts for unmatched customer service and a flawless climate solution that meets your family’s comfort needs.
We strive to earn the trust of every homeowner, provide the best solution and value, and offer the best in mechanical and electrical services—without compromise.
Serving Central & Eastern PA
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