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Stay Cool All Summer

Now Offering Same Day Appointments Afterhours and On Weekends. Just Book It!

Homeowners throughout Pennsylvania rely on their air conditioners to keep their homes cool during the sweltering summers. When you experience issues with your system, you’ll want help from a local, trustworthy HVAC contractor. For all your cooling service needs, choose Haller Enterprises.

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Since 1981, our team has delivered exceptional AC services to Pennsylvania homeowners. We offer special financing on any work over $500 so scheduling the services you need is stress-free and convenient. Is your system on its last legs? We’ll provide you a free in-home or virtual estimate for a new HVAC system, even on evenings and weekends.

When you choose us as your partner in year-round home comfort, you’ll benefit from our 40 years of industry experience. Whether you need AC repair, maintenance, installation, or replacement, our team has the experience and knowledge to provide unparalleled service. Choose Haller for your cooling service needs and enjoy 100% satisfaction guaranteed.

Our Customers Love Us

4.8
Based on 8148 reviews
We just had a service check done on our AC unit. Our technician, Jonathan was very courteous and thorough.
Very helpful and nice. Gave me a quote right away. Told me to research other quotes before making my final decision.
Jared explained everything he checked on or furnace as he worked. I was very happy with his service.
Technician was as always extremely courteous and took time to answer and explain all my stupid questions and concerns to me.
My wife is very happy with them because unlike me they clean up after themselves.
Jared was very informative and did an excellent job explaining all the options
Safwan was thorough, and knowledgeable. He addressed our concerns and spent time to explain what he did and kept us informed through the repair . He was polite and professional as well as friendly .
David was professional and knowledgeable
The service technicians are always on time, professional, extremely courteous and explain everything they see and take care of. Extremely happy with their service.
Did an excellent job and fixed the problem in a short time frame. I would
definitely call again for yearly maintenance or any other HVAC issues
Safwan is knowledgeable and excellent!
I had an excellent experience with this company Ricardo Colon was the plumber that came out to my house to help me with an issue that I had with my heat he is a very nice person with great manners I rate him a 10/10 thank you Ricardo Colon Again for your services I give you a 5 star rating for your excellent services
Carlos did an excellent job in servicing our water heater and forced air furnace. He was very professional and very thorough and all the steps he took to make sure our two systems are operating properly. I enjoyed the additional information that he provided and showing how both systems are operating properly and the maintenance that they provided to ensure their continued proper use.
We have been with Haller for at least 8 years. And the service they provide has been excellent!
Excellent service! Glad I have a maintenance contract with Haller. Daniel was amazing. Excellent work replacing our water heater and the best customer service skills. Thank you!
Triangle installed our small commercial system in 2016 and we've been experiencing failures nearly every year since. We kept trying to get them to send somebody to root cause the system for the failures, but every time they would just come out and replace the same blown fuse or a wire and send us a bill for ~$1000. We tried communicating our need for a real solution with the main office, but it just sent us to a call center in California. Finally gave up on them and had someone from Haller come out to look at the system, and on the first trip they found multiple errors in the system set up, fixed those, and sent us a bill for about 1/3 the cost. At least the positive here is that we found our new, go to HVAC company, with Haller. Thank you, Hunter!
Brendon expertly diagnosed the problem and helped identify practical and appropriate solutions. He is great at explaining the technical problem and helping non plumbers make decisions.
Customer service contact,In a word Wonderful. Angie is the best. Service Tech Chris who did maintenance professional, knowledgeable and friendly. They enhance the the Company. Kudos to them.
Brian has down all the service and repairs to our HVAC. He is very knowledgeable and handled the maintenance of my HVAC. He very nice to me and wife and the cats. He gave us a few suggestions of how to improve our HVAC as well.
As far as Brayden.i give him a 5 star review..
Nevin did an outstanding job diagnosing and solving a problem with thermostats in our HVAC system. He was patient and professional throughout the service visit.
I had two problems that were not major but they needed to be fixed. Brandon handled both with ease all the while explaining what was being done to solve the problems. Thanks for the quick response and for sending the person who was efficient and knowledgeable.
Awesome service. Fast response. Great diagnostics. Fixed the issue in 30 minutes.
⭐️⭐️⭐️⭐️⭐️
I cannot say enough good things about Daniel Sprague and Haller. I called just before noon for an emergency sewer line issue, and despite it being midday, Daniel arrived around 8:00 PM and worked for nearly four hours to fully resolve the problem. He shared that he had already worked a 16-hour day, yet his professionalism, patience, and dedication never wavered.

Daniel was knowledgeable, informative, and took the time to explain what was happening and what needed to be done. He approached a stressful situation with calm expertise and genuine care, which made a huge difference. His work ethic and commitment are truly commendable.

I would highly recommend Daniel Sprague and Haller to anyone in need of reliable, high-quality service—especially in an emergency. This level of service is rare and deeply appreciated.

Thank you Joshua Kahley for fixing my breaker and restoring my electric
Late night emergency repairs; but, made the proper fix quickly and efficiently. Much appreciated. Thanks
Great, thorough maintenance service from Thomas Wolf!

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

Haller PA Location Map Updated in 2026

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