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 2563 reviews
They did a great job, were courteous, and explained everything they did and how it works. I recommend them.
Great service!
I’ve been a long time customer, and they provided me with excellent service, and treated me fairly for a recent job. The tech was great as well, knowledgeable and quick. Very pleased overall
The HVAC technician, Mason , was extremely professional, polite, and knowledgeable. He fully explained each phase of the process for both of my units.
Friendly and quick service. Only dinged them 1 star because they charge a lot for R-410A coolant installed; too expensive.
Tech was super knowledgeable and very prompt . We are glad we got the service contract for our HVAC to cover cost of yearly maintenance and service!
Polite thorough. To date i have been impressed with your service and techs. Keep up the good work.
Called for help with a/c at 9 am and everything was fixed before 11:30. Very pleased with service. Don is awesome.
Carl was very thorough, explained everything, and did a great job. We have been with Haller for 20 years and highly recommend them.
Nathan from Haller was an exceptional technician. He was thorough with the maintenance and cleaning of our equipment and took the time to explain all of the checkpoints taken. He identified a spores issue in our ventilation system and was able to install a scrubber system to take care of the problem in the same appointment. I appreciated his professionalism and sincerity. Thank you.
Very prompt, polite, and energetic.
Tech was thorough while doing routine winter maintenance on our HVAC system. Would highly recommended Haller. Good service and reasonable prices.
Noah and Bob performed the heat pump inspection and routine maintenance work. They were very polite!
Did a great job on our heater
He was very informative and professional
My experience today was great.my technician was prompt, courteous, thorough and extremely professional. I'd certainly recommend.
1/23/26 visit – tech was incredible. Excellent service, highly qualified tech fabulous service – best in a long time!
Careful worker and very thorough with his wirk
James was very helpful and professional
Nevin was wonderful. I cannot say enough good things.
Mark was very professional, knowledgeable, and honest. The work was completed well and efficiently.
Great company to work with and friendly and knowledgeable techs
Don did an excellent job on our Geo system repair. He is very contentious and always a pleasure to work with.
2026 Review. Adding to my past review just to reiterate that we are yet again, completely satisfied with Austin, our service tech and Haller over all. The workmanship and customer service from every level is right on point with this company. We highly recommend them, you won't regret it.

Austin, the service tech was very respectful & professional during the entire service call. We were very pleased with Haller as we always are! From the initial service call through the entire process, we give them the highest rating! We highly recommend Haller!
Mike was fast and efficient. I appreciate him for coming out and fixing the issue with my kitchen sink pipes. Thank you!!!
Kurt is a great technician who we know and trust after many years of maintaining our AC equipment. He always does a great job!