Haller HVAC technician at a customer's door in Exton PA

Providing Electrical, HVAC, & Plumbing in Exton PA

Haller’s technicians offer top-grade installation, repair, and maintenance services in Exton, PA.

With 40 years of experience in the industry, we’re dedicated to the care of your home or business so you can enjoy everything Exton has to offer — from shopping at the Exton Square Mall to exploring the trails of Marsh Creek State Park.

Services in Exton PA

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HVAC Services in Exton

When your heating or cooling system breaks down, there’s no need for you to! Haller’s services are here to install, repair, and maintain your HVAC systems to ensure the ultimate comfort and quality of your home or business’s air.

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Plumbing Services in Exton

From sink kinks to toilets, our plumbers in Exton have the expertise and tools to handle any of your plumbing and drain issues. You can count on us to protect your pipes and keep your water running smoothly.

Are you in a plumbing emergency? Not to panic — Haller’s team is on call 24/7 to protect your system.

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Electrical Services in Exton

When it comes to your home or business, electrical work is best left to the professionals. Our expert electricians take all the necessary precautions to help install, repair, and maintain your electrical system safely and efficiently.

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Built to Budget

Repair, installation, and maintenance costs can come at a cost. If you’re concerned about your budget, Haller is here to help you select the best system and service options for your home, business, and wallet.

What Sets Haller Apart?

Alongside our expertise in the trades, we offer 24/7 emergency service and a 100% quality guarantee for all our residential and commercial customers in Exton, PA. Our services will ensure the comfort, safety, and efficiency of your home or business.

Why wait to call? We’ve got you covered.

Schedule your service today to get your project underway.

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What Our Customers Are Saying

100% Satisfaction Guarantee

4.7
Based on 2493 reviews
Ty Jason really like your work
Thorough, efficient and friendly service!
Prompt
Looked up 5 year and 10 year
He didn’t know additional warrenty
He was wonderful
Very pleased with the final installation of our new Infinity Heat Pump. Haller went above and beyond to make sure we were totally satisfied with the end result.
Very professional and courteous. Technician took his time and explained everything in easy to understand terms.
Prompt, friendly, and efficient. We have a two year subscription where the come every six months. I would highly recommend.
I’m very pleased with Haller. They were on time and were friendly and courteous.Thank you
After a heavy rain, our sump pump failed and water backed up into our basement. Within hours of my call, Haller sent out a plumber (Trenton) who diagnosed the problem which required the installation of new PVC pipe. Trent came back the next day, completed the job promptly, and made very little mess considering he had to chisel into the floor and cut out a small piece of Sheetrock. The sump pump system has been working perfectly ever since.
I’m very happy with the service very professional
But you give us a Four hour window and he is still late. We have better things to do than sit around and wait for four hours and then him being late.
I do not believe He was the problem you have to do a better job of scheduling
Always on time, professional and courteous. We appreciate the service reminder to keep our systems running safe and efficient
Technicians are always very good. Might be a bit pricey but work is always done to a high standard.
Excellent service. Very friendly and informative.
Aaron my service tech was very professional and knowledgeable. Appreciate the good service.
Great service, very timely and professional. Explained everything is easy detail.
My grandfather and I were helped by a man named Jesse Brubaker, who was sent out to check out our ac system in a rental house that my grandfather owns and I run. He was extremely polite and helpful in explaining everything going on and broke down all the options we had available. I had to call my grandfather before making any final decisions and my grandfather called him back to ask a few questions since I'm not as well versed in those systems. Jesse went beyond the typical expectancy of doing exactly what is required to do and no more, and instead took time to check things thoroughly which saved us money and time on fixing things that may not have ever been an issue! Thank you Jesse for being so helpful and earnest in our interaction! I'd hope he gets some kind of recognition from the company for being an outstanding employee and making a customer very happy with the service and the personal experience.
12/10/2025
Shane Kiefer performed my annual pm service for our water heater, water softener and whole house filter. He did his usual outstanding job today and answered several questions we had. Shane is an awesome ambassador for Haller Enterprises and he gets a five star rating from me every visit.

12/8/2025
Austin Black performed the annual pm service on our furnace. Austin was very knowledgeable, efficient and did a great job informing us of his work summary plus answered several questions we had.
I gave Austin a five star rating and I continue to value the benefits of having Haller Enterprises service our HVAC system as well as the major water appliances .
May 28 Nate serviced our home AC unit. Nate was very helpful and passed along good information. I have always enjoyed the service visits by our Haller technicians.
Shane replaced our water heater. We are finding hotter water and more shower pressure. Thanks Shane.
I had the pleasure to meet RON when I recently had my Mitsubishi system maintained.
He was very friendly , professional & very experienced in everything he did to make sure my system was in excellent shape & even offered alot of services that I wasn't even aware of!
I sure hope that when I need service again, that RON is the technician that gets assigned.
Completed regular maintenance and provided thorough review of the service completed and helpful recommendations.
Service is always excellent. Maintenance
Great Technician, skilled, proactive and conscientious.
Nick was on-time, friendly, and patient with all of my questions. I finally got two big projects done and couldn't be happier. I will definitely use Haller again and recommend them to my friends!
Curious and knowledgeable service team. Mason did a great job.
Shawn D did a great job with our preventative maintenance and provided updates on how our system is performing. Five Stars!