Why You Should Pick Haller for Your Heat Pump Maintenance

Serving Central and Eastern Pennsylvania since 1981, Haller has spent four decades helping homeowners get reliable year-round comfort from their heating and cooling systems.

Our NATE-certified technicians are trained to service heat pumps thoroughly and know what to look for on a system that runs in both heating and cooling mode throughout the year.

(717) 204-8120

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What’s Included in Your Heat Pump Maintenance Appointment

Haller’s NATE-certified technicians follow a detailed maintenance process designed to keep your heat pump performing efficiently in both heating and cooling mode.

Every visit covers the components that determine how well your system handles the next season.

We clean both the indoor evaporator coil and the outdoor condenser coil. Dirty coils reduce heat transfer efficiency and force the compressor to work harder, which matters when July humidity across the Lehigh Valley keeps the system running for extended stretches and again when temperatures drop through December and January.

We check refrigerant charge and test system performance in both heating and cooling operation. Low refrigerant reduces capacity in both modes and accelerates compressor wear. A heat pump running with incorrect refrigerant charge is working harder than it should in every season.

Heat pumps accumulate ice on the outdoor coil during Pennsylvania winters, and the defrost cycle is what clears it. We test the defrost controls and verify the cycle activates correctly and completes within normal parameters. A defrost system that is not working correctly reduces heating efficiency and can damage the outdoor unit through a full winter season.

We inspect and replace the air filter and check airflow throughout the system. Restricted airflow reduces efficiency and puts strain on the blower motor, and it affects both heating and cooling performance equally.

We check and tighten electrical connections, inspect capacitors and contactors, and test controls for proper operation. Loose connections and worn components are the leading cause of heat pump failures that happen mid-season when the system is under the most demand.

Before we leave, we explain what we found in plain language. If something needs attention before the next heating or cooling season, you hear about it at the appointment, not when the system fails on the coldest day in February or the hottest week in July.

Homeowner greeting Haller technician at the door for maintenance

Save on Heat Pump Maintenance with the Home Comfort Club

Regular heat pump maintenance is one of the most effective things you can do to protect a system that works year-round.

A heat pump that skips maintenance does not get a slow season to recover. Issues that develop going into winter are still there when summer arrives.

Haller’s Home Comfort Club keeps your system on a consistent maintenance schedule with priority service scheduling across the Lehigh Valley, Lancaster County, York, and Harrisburg, and exclusive member savings on any repairs found during the visit. Your HVAC, plumbing, and electrical systems are all covered under one plan.


Why Central and Eastern Pennsylvania Homeowners Trust Haller for Heat Pump Maintenance

Choosing who maintains your heat pump matters. A system that runs year-round needs a team that understands what it takes to keep both heating and cooling performance where they should be.

Haller has earned the trust of homeowners across Central and Eastern Pennsylvania through more than four decades of dependable service and honest recommendations.

Haller’s technicians are NATE-certified, and Haller is a Carrier Factory Authorized Dealer and a BBB Accredited Business. Those credentials mean your heat pump is serviced by technicians who meet verified industry standards for both knowledge and workmanship.

Haller has been serving Central and Eastern Pennsylvania since 1981. Four decades of Lehigh Valley summers and winters, Lancaster County cold snaps, and York and Harrisburg shoulder seasons have given our team a clear understanding of how heat pumps perform in this climate and what they need to keep doing it.

We make heat pump maintenance easy to schedule with same-day availability and a team that shows up when we say we will. We explain what we find before we leave.

Our technicians check the full system on every visit, including the components that are easy to overlook on a quick inspection. Defrost cycle testing, refrigerant charge verification, and coil cleaning are all standard, not optional.

A heat pump that has been properly maintained does not produce unexpected failures in the middle of a July heat wave or a January cold snap. Routine service is what keeps a system predictable across all four seasons.

Haller is not a one-time service call. Homeowners across Allentown, Bethlehem, Easton, Lancaster, York, and Harrisburg rely on us year after year because consistent care from a team that knows your system is worth more than starting over with a new contractor every season.

Female technician leaning out of a Haller Enterprises vehicle window smiling.

(717) 204-8120


What Our Customers Are Saying

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4.7
Based on 2574 reviews
My air conditioner was repaired by Neffsville, but it failed again in just over a month. When it stopped working, I was told it would be four days before they could come back out (itโ€™s 101 degree outside!).

I called Haller Enterprises instead, and they had a technician at my home within 24 hours. Jesse B. was knowledgeable, professional, and took the time to explain the issue and the repair. He diagnosed the problem quickly and completed the repair efficiently.

The difference in responsiveness and overall service was night and day. Based on my experience, I highly recommend Haller Enterprises for your HVAC needs. Thank you, Jesse, and the Haller team, for taking great care of us!
Adam B. came out on an extremely hot day and got the air fixed up and running well as soon as they got my call. He was very polite and friendly and explained everything he needed to do. I would highly recommend the company.
Very professional and tells you exactly what is going on. Highly recommend.
Very courteous and explained what was going on very well.
Thank you for the prompt and excellent service. Jesse was quick to figure out the issues with our ac, clearly explained the problems, and had us up and running again just in time for the heat wave.
Hands down Heller enterprises is one of the best HVAC and all around utility companies out there. Their text and appointment system is top notch. When there are delays they let me know immediately unlike other places that keep you hanging out with no word on what's happening. Technicians are sharp, polite always cover their feet with wraps to protect floors and they really know their stuff.
The technician Nicholas showed up on time as all Haller technicians do! We needed a leak fixed under our kitchen sink and a new faucet installed. The leak was coming from the garbage disposal and asked him if it could be taken out and replace just with plumbing for that side of the sink. He gave me great prices and performed the work in about three hours and was very thorough and cleaned up all the way out to the front door.
Vincent replace our water heater with a tankless one. He is a extremely polite gentleman and explained all things very well. He work long and hard and did a couple extra jobs while here. I would not hesitate to ask for him for anything else needed. Thank You Vincent
Daniel diagnosed the problem quickly and explained everything well.
Nevin was courteous, professional and got right to work. Haller's employees always are. Nevin is the kind of employee who relates well to Haller's cusomers..
Update 1/2026: I continue to be impressed with Haller and their professionalism and capability. They take the time to explain what's going on and why something should or shouldn't be replaced. The One Call Club continually pays for itself every year!
We have had our system (installed by Haller) for a few years now and use the annual maintenance contract. The last three visits from Haller have been by the same gentleman and he's been absolutely fantastic to work with. He has taken the time to explain options, why something should or shouldn't be addressed immediately and has answered every single question I've had about our system. I'm curious about mechanicals and ask a LOT of questions so it takes a little to get through the answer sometimes. They have always been professional and respectful of my home and cleaned up after they were completed their work. I have recommended Haller to several of my family and friends because its rare that a company is always this easy to work and deal with. I'm going to be a long term customer for sure and am happy I decided to go with Haller for my HVAC installation. Thanks for the awesome experience!!
Experience in 2026 for electrical:
Haller came out and helped me with an electrical issue I had. They came in the evening, patiently described my issue and helped me understand my electrical box. I appreciate the help Jason B. Gave us!

This is an experience for Haller in summer of 2020:
I have a heat pump. It sucks and blows, I know, Iโ€™ve heard the jokes.

But we had an issue recently where our heat worked but our AC only blew hot air. Steve Wakefield, one of the techs from Haller, came out to see what the problem was. He spent several hours with me helping me understand the issue and informed me that the best option would be to replace the unit.

One thing I need to mention โ€” this was a second opinion. The first HVAC company told me that it was busted and the only option was a full install, so I was quoted for a price between 8k – 10k for a heat pump install. Normally a fullInstall would be necessary, but Steve, who provided me with my second opinion, was able to call a supplier right at my house and confirm that they had my outdoor unit in stock and it was compatible with the basement unit.

I then got a quote for a full install just in case; they did everything virtually due to COVID, but it was so seamless. The full install option would be $600 less than the competitor with additional services included!

I have been amazed by Hallerโ€™s service and Steveโ€™s desire to really go the extra mile to help me understand my decision.
He was on time,he let me know exactly what he was doing. He'd showed me what the problem was and what could happen. He was very thoughtful and informative and of course very friendly. Yes, I would recommend him to my home ๐Ÿก. That's why I like having Haller Enterprise for my home needs.
Would like to give positive comment to Jessee and Austin- your two technicians who did a great job on problem-solving our AC unit recently
Ken was excellent including his explanations!
My service tech was very knowledgeable and did an excellent job explaining my system and the condition it is in. He was very professional and friendly.
Outstanding….best technician yet!
Did a great job on our AC installation
We had annual maintenance performed on our air conditioning and then had to make a call later in the week for our garbage disposal. Both times our technicians, Brayden and Trenton, were polite, professional, on time, and efficient. Even the receptionist was on point with our issue, courteous, and a pleasure to speak with.

Each technician provided follow-up advice and key things to be watchful of. We are beyond pleased with the services Haller provides as well as their staff and technicians. The service fee is reasonable and the maintenance contract we have for our A/C is a cost saver.
Gabe from Haller Enterprises arrived promptly when scheduled. He listened carefully to my questions/concerns and then made an honest effort to find answers/solutions. Although no immediate resolution to the main issue was found, Gabe promised to continue his search on his own and contact me promptly when he had success.
I used Haller Enterprise to replace some plumbing and was very pleased.
Needed emergency service and they were there within a few hours. Great service. Friendly and efficient.
Brandon did a great job replacing a shower valve. He also cleaned up after the job was complete. We will definitely use Haller in the future.
Excellent Service. Pleasant technician!
Christopher is my maintenance tech who comes out twice a year. He does a great job and is always honest and clear. Appreciate his patience as I do have 3 dogs and he is always accomodating. Thanks!


Friendly Haller Enterprises technician greeting homeowner

(833) 222-2953

Why You Should Schedule Heat Pump Maintenance with Haller

Scheduling heat pump maintenance with Haller is one of the most direct ways to protect a system that carries your home’s comfort through every season.

A heat pump that has been serviced and tested is ready for whatever the next season brings. One that has not been maintained carries unresolved issues from summer into winter and back again.

A clean, properly charged heat pump runs at peak efficiency in heating and cooling operation. In Central and Eastern Pennsylvania, where the system runs through humid summers and cold winters without a meaningful off-season, that efficiency improvement reduces monthly energy costs across twelve months of use, not just one peak season. 

Small issues caught during a maintenance visit do not become failures during a Lehigh Valley heat wave or a January cold snap. A heat pump that fails at either end of the seasonal demand curve is the result of deferred maintenance, not bad luck.

A heat pump that runs year-round accumulates operational hours faster than a single-season system. Proper maintenance reduces compressor strain, extends component life, and keeps the system performing through more seasons before replacement becomes necessary.

A properly serviced heat pump delivers even temperatures in heating mode through the coldest stretch of a Central Pennsylvania winter and consistent cooling through the humidity of July and August. A system that has not been maintained loses that consistency at both ends.

A refrigerant issue or a failing capacitor found during a scheduled maintenance visit costs far less to address than an emergency call on a Saturday night in February. Routine service is what keeps small problems from becoming expensive ones.


Other HVAC Services You May Need

Heat pump maintenance is one part of keeping your home comfortable and efficient year-round.

Haller provides the full range of HVAC services Central and Eastern Pennsylvania homeowners need, from heat pump and furnace care to air quality solutions and boiler maintenance.

When maintenance finds a larger issue, or when a heat pump fails unexpectedly, Haller provides fast repair service across Central and Eastern Pennsylvania.

For systems approaching the end of their useful life, we also offer professional replacement with high-efficiency options sized correctly for your home.

If your home uses a heat pump alongside a backup heating system, Haller maintains furnaces and other heating equipment to make sure everything works together through the coldest months of the year.

For homes with central AC alongside a heat pump, Haller provides full cooling system maintenance to keep every component of your home comfort system in good condition.

Consistent comfort includes the quality of the air inside your home. Haller offers filtration, humidity control, and air quality solutions that work alongside your heat pump to improve indoor conditions year-round.

For homes with a boiler rather than a heat pump, or with both systems in use, Haller’s NATE-certified technicians provide full boiler maintenance to keep your heating reliable through every Pennsylvania winter.

(609) 799-3434

Male Haller tech with tool bag entering residential home smiling.

Schedule Your Heat Pump Maintenance with Haller Today

Do not wait for a breakdown in the middle of heating or cooling season to remind you how much your heat pump does.

A properly serviced heat pump is a reliable one. Reach out today to schedule your heat pump maintenance appointment with Haller.


Frequently Asked Questions About Heat Pump Maintenance

How often should I schedule heat pump maintenance?

Heat pumps should be serviced at least once a year. Because a heat pump runs in both heating and cooling mode, many homeowners in Central and Eastern Pennsylvania schedule service in the fall before the heating season begins, so the system has been inspected before it carries the home through December, January, and February. If your system has been running heavily or you have noticed any performance changes, more frequent service is worth considering.

What is included in Haller’s heat pump maintenance service?

Our NATE-certified technicians clean the indoor and outdoor coils, check refrigerant charge and test performance in both heating and cooling operation, inspect and test the defrost cycle controls, replace the air filter, check airflow, inspect electrical connections and components, and explain all findings before leaving. Every visit covers the full system, including the defrost controls that are specific to heat pump operation in Pennsylvania winters.

Why is regular heat pump maintenance so important?

A heat pump accumulates operational hours in both heating and cooling seasons, which means it does not get the extended off-season that a furnace or central AC does. In Central and Eastern Pennsylvania, where the system runs through humid summers and cold winters with only brief shoulder seasons in between, deferred maintenance compounds faster than it does on single-season equipment. Issues that develop going into winter are still there when summer arrives.

Will heat pump maintenance help lower my energy bills?

Yes. A clean, properly charged heat pump with correct refrigerant levels and clean coils runs at its rated efficiency in both modes. In a climate where the system runs year-round, the efficiency improvement from a properly maintained unit compared to a neglected one shows up in monthly energy costs across every season, not just the peak months.

How long does a heat pump maintenance appointment take?

Most heat pump maintenance visits take about one to two hours. Heat pumps require testing in both heating and cooling modes, and the defrost cycle inspection adds time that a standard AC or furnace visit would not include. Haller’s technicians take the time to check the full system properly and walk you through their findings before leaving.