HVAC, Plumbing & Electrical Services in Exton, PA

Austin and Austin were great – professional, answered all of our questions, worked fast.

Excellent work and super polite

Our HVAC needs are well taken care of with Haller. They got the part we needed and installed it the next day. Haller came highly recommended to us, and I also highly recommend them! Shoutout to Phil for taking care of us this week!

Quick and efficient service got to the root of the electrical problem and fixed it !

Fast and efficient service

Excellent service and great professional personality

I had a technician, Ron Losch, come out to service my HVAC system under warranty, and I couldn't be more impressed. Not only did he handle the HVAC inspection with total professionalism, but he also took the time to recommend an air scrubber to help with airborne contaminants—something I really appreciate for my home's air quality.
While he was here, he proactively checked my water heater expansion tank and discovered it had deteriorated. He was able to replace it on the spot, likely saving me from a major headache (and flood) down the road. To top it all off, he noticed some messy Pex plumbing and volunteered to clean it up with cable ties just to make sure everything looked neat and professional.
Ron is friendly, knowledgeable, and incredibly thorough. 5+ stars! I highly recommend their services to anyone looking for quality work.

Highly recommended. On time, courteous and friendly! Carl was an excellent Hvac mechanic. A+++

I have had Haller Enterprises as a HVAC supplier for years. I am happy with the service that I received today with Westley Walters as the tech. He was very thorough and sweet. I would suggest anyone to have Haller for all of their HVAC or plumbing needs.

Great Service. On time. A+++

Great experience from start to finish. Technician Connor listened to my concerns, verified the issue and presented options with no pressure to make a decision. My failing hot water heater was installed by Haller sixteen years ago with not one issue during that time. I decided to go with a tankless unit and it was installed the next day with high quality workmanship. Definitely recommend Haller and Connor.

Knew his stuff. Explaining things very well.

Shawn was pleasant, helpful and professional.

Josh was great… pinpointed the problem so well. We are all up in running in less than an hour!

Our serviceman was knowledgeable and professional. We appreciated his explanation of the products and services he recommended.

They are very thorough. Everyone we have dealt with has been very nice and informative. They actually listen to what you're saying to get the issue resolved. I trust them to make sure everything is running safe and sound.

Annual service contract. Professional, informative technicians. We always feel a peace of mind whenever they are at our home.

Scott did a PERFECT job diagnosing my problem. Took a little while for him to figure it out, but he did and corrected it beautifully. Scott is definitely an asset to Haller. He deserves a big raise as far as I’m concerned. I’ll have him back for any service. I need to my system. Scott would be welcome in my home anytime.

Very satisfied with the maintenance work of our furnace today!

Excellent prompt service with professional approach with Mr Robert Nemes from the company 🙏We have been working with the company for last so many years they have been very prompt in their response 🙏Highly recommend this company 🙏

They got me in same day when everyone else said 2 weeks. Colin was great! Very knowledgeable and respectful.

Trenton did an excellent job and the few questions I had he was able to answer sufficiently and to my satisfaction. He is such a fine young man and in my opinion a definite asset to the company.

Always good service. HVAC serviced today

Great service!!

Brandon, Alex and Anthony did a wonderful job on the installation of our furnace and air conditioner units!!