Your Local Heat Pump Replacement Pros

Homeowners across Central and Eastern Pennsylvania trust Haller for dependable heat pump replacement and lasting results.

Haller has been serving Central and Eastern Pennsylvania since 1981, bringing decades of experience to every replacement job across the Lehigh Valley, Lancaster County, York, and Harrisburg. We have built our reputation on quality workmanship, honest recommendations, and a safety-first approach on every installation. Every heat pump replacement we complete is backed by our 100% satisfaction guarantee.

(717) 204-8120

4.7
Based on 8178 reviews
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Carrier Residential Factory Authorized Dealer
North American Technician Excellence - NATE - Certifying the Finest in HVACR

Emergency Heat Pump Replacement

You cannot always plan for heat pump replacement, and sometimes your system fails without warning.

A heat pump handles both heating and cooling, which means when it goes down in January or quits during a stretch of 90-degree days in July, you have lost everything at once.

Our technicians are standing by to respond quickly and restore your home before the situation gets worse. Call our team today if you need emergency heat pump replacement.

Emergency Service

HVAC Systems Serviced

Drains Cleared

Trucks on the Road

How to Schedule Your Heat Pump Replacement

Scheduling your heat pump replacement with Haller is straightforward and designed around your convenience.

We keep the process clear and direct so you can move from your current situation to a working system without unnecessary delays.

Call us or reach out online and our staff will gather details about your current system, including its age, how it has been performing, and whether it has needed recent repairs. We will get your replacement consultation on the calendar at a time that works for you, whether you are in Allentown, Lancaster, York, or anywhere across our service area.

An experienced comfort specialist visits your home to assess the existing heat pump and measure what your home actually needs. For heat pumps specifically, this means evaluating your home’s insulation, square footage, and duct condition alongside the existing equipment, because a heat pump that is sized wrong for the home it is heating and cooling in Pennsylvania’s four-season climate will underperform from day one.

We walk you through replacement options, including efficiency ratings, cold-climate performance specs, and whether a standard or cold-climate heat pump makes sense for your home’s location and layout. You will receive upfront pricing and clear explanations. There is no pressure to decide on the spot.

Our NATE-certified technicians remove the old system and install your new heat pump with a focus on safety and precision. Before we leave, we run the system through both heating and cooling operation, verify refrigerant charge to manufacturer specifications, confirm proper airflow across the air handler, and test the thermostat and defrost controls. The defrost cycle check matters in Pennsylvania winters, where ice accumulation on the outdoor unit is a normal operating condition a properly installed system has to handle.

(717) 204-8120

(717) 204-8120

Benefits of Heat Pump Replacement

When your current system has run its course, a new heat pump does not just restore comfort. It changes how your home handles every season.

Modern heat pumps bear little resemblance to the technology from 10 to 15 years ago. Higher efficiency ratings, variable-speed compressors, and improved cold-weather performance make today’s systems genuinely better at the work Central and Eastern Pennsylvania’s climate demands of them.

Heat pumps move heat rather than generate it, which makes them fundamentally more efficient than systems that burn fuel or rely on electric resistance heating. Modern units with variable-speed inverter compressors ramp output up and down based on demand rather than cycling fully on and off, which reduces electricity use and maintains more stable temperatures. In a climate where you are running the system for heating from December through February and for cooling through July and August, that efficiency difference compounds month over month.

Older heat pumps with single-stage compressors either run at full capacity or not at all, which leads to temperature swings, short-cycling, and uneven results. A new system sized and installed correctly maintains steady output without the on-off pattern that wears down aging equipment and leaves some rooms in a Harrisburg colonial or a Lancaster farmhouse consistently warmer or cooler than others.

A heat pump is the only system that handles both heating and cooling from a single outdoor unit. In heating mode, it extracts heat from outdoor air and transfers it inside, even when temperatures drop. In cooling mode, it reverses the process and removes heat from your home while also pulling humidity out of the air, which matters in a region where July and August humidity is as much the problem as the temperature itself.

Older heat pumps lost meaningful efficiency as outdoor temperatures fell below freezing, forcing heavy reliance on electric resistance backup heat that costs significantly more to operate. Modern cold-climate heat pumps maintain effective heating output at much lower outdoor temperatures, which means your system can work as designed through a Lehigh Valley winter without defaulting to backup heat every time the temperature drops.


Why Homeowners Trust Haller for Heat Pump Replacement

Replacing your heat pump is a significant decision, and you want the right team handling it.

Haller has earned the trust of homeowners across Central and Eastern Pennsylvania through decades of dependable work and a process that keeps you informed at every step, from the first call to the day your new system is running.

Our technicians are NATE-certified, and Haller is both a BBB Accredited Business and a Carrier Factory Authorized Dealer. That combination means your replacement is handled by technicians trained to manufacturer standards, working with equipment they know inside and out.

Haller has been working in Central and Eastern Pennsylvania since 1981. Four decades of Lehigh Valley winters and summers, Lancaster County cold snaps, and York and Harrisburg heat waves have given our team a deep familiarity with what it takes to size, install, and commission a heat pump that performs through all of it.

A heat pump replacement is a major investment. Haller offers flexible financing for qualified homeowners so you can move forward with the right system now and manage the cost over time rather than waiting for a full breakdown to force the decision.

Heat pump failures do not follow a schedule. Our team is available around the clock, so if your system goes down on a January night in Bethlehem or during a heat wave in Lancaster, you are not left waiting until morning for someone to call you back.

Every replacement follows strict safety procedures, including proper refrigerant handling, correct electrical connections for the outdoor disconnect and air handler, and thorough post-installation testing. We do not consider the job finished until the system has been fully verified under operating conditions.

We keep you informed at every step. You will know what we recommend and why, what the work involves, and what it costs before we begin. No surprises on installation day and no pressure before you decide.


What Our Customers Are Saying

Learn More About Our 100% Satisfaction Guarantee

4.7
Based on 2413 reviews
Bi-Yearly maintenance of HVAC and hot water heater under a maintenance contract.
Brayden Berkheimer provided excellent service. Very knowledgeable, friendly and efficient.
Ac maint. Very thorough and professional technician
Thanks Ken from Haller Enterprises .. thankful you keep my furnace and AC system operating smoothly!
Very reliable and timely to respond to our needs when our furnace had some issues due to a power surge in our area. Their service people were timely and friendly and resolved our problems.
Very professional, knowledgeable, and personable
Excellent Service.
Ron L did a fantastic job servicing my a/c and heating system. He explained exactly what he did and was very professional and knowledgeable.
You guys did a great job and were immaculate! Thank you for that. Unfortunately, we cannot keep the sign in the yard. We are not permitted to do so.
I signed up for annual maintenance service for our HVAC/Water Heater/Water Softener plus Dryer Vent Cleaning. The process was simple and quick. I was contacted soon after to schedule visits and was able to have techs come the same day. Both guys were professional, friendly, explained what they were going to do and any issues/suggestions they had. The work was done well and we are very pleased.
Very professional, detailed, excellent service
Iโ€™ve used Haller Ent. several times over the years, and they continue to exceed my expectations every single time. Most recently, they handled a major repair for a broken sewer pipe in my front yardโ€”no small jobโ€”and the entire experience was outstanding from start to finish.
The technicians Moises, Ben, Mike, and Danโ€”were absolutely exceptional. Not only were they highly skilled and efficient, but they also took the time to explain the process, answer my questions, and make sure I felt confident every step of the way. They went above and beyond to make sure I was satisfied.
I have recommend Haller to several people and each one had positive experiences. I won't hesitate to call them again and will continue to recommend them to anyone in need of reliable, high-quality plumbing services.
We had a plumbing inspection. Michael was seethorough and informative and personable. He and his assistant worked very efficiently. We did have a small valve leak to an outside spigot repaired.
The entire process from the sales to the full implementation in Communications was both rapid and very highly professional. I highly recommend Haller for excellence in what they do. Thank you!
Friendly professional technician
Very thorough, very
Friendly and experienced
Friendly and competent work performed by great technician Chris M.
Ron the A/C technician for Haller is excellent. Prompt, courteous and very knowledgeable. Excellent customer service and care
Excellent serviceโ€”Nick was courteous, knowledgeable and efficient. He went beyond what he was asked to do.
We just had a service check done on our AC unit. Our technician, Jonathan was very courteous and thorough.
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
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!
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.
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.


Protect Your New Heat Pump with the Home Comfort Club

Now that you have a new heat pump, a little routine care goes a long way.

Haller’s Home Comfort Club is designed to protect your home’s HVAC, plumbing, and electrical systems with scheduled tune-ups, priority service scheduling, and exclusive member savings.

It is a simple way to stay ahead of costly problems across every system in your home. Contact our team to learn how to sign up.

Homeowner greeting Haller technician at the door for maintenance


Friendly Haller Enterprises technician greeting homeowner

(833) 222-2953

Time to Replace Your Heat Pump? Look for These Signs

Knowing the warning signs of a failing heat pump can help you avoid losing both heating and cooling on the worst day of the year in Central Pennsylvania.

When repair costs keep adding up, replacing the system is the smarter financial call. A heat pump that has needed service multiple times in a single heating or cooling season is in a different category than one dealing with an isolated issue, and continuing to repair it ahead of a Pennsylvania winter or summer is a gamble that rarely pays off. 

An unexplained jump in your monthly energy costs often points to a system working harder than it should to maintain temperature. In the Lehigh Valley and across Central Pennsylvania, where your heat pump runs in heating mode from December through February and in cooling mode through the height of summer humidity, an inefficient system does not hide that decline in your utility bills for long.

If your system cannot reach the temperature you set during a January cold snap or a stretch of high-80s heat in July, the equipment is no longer performing to spec. For heat pumps specifically, an aging system that defaults frequently to backup electric resistance heat in winter is both a performance signal and a cost problem, since resistance heat costs significantly more to operate than the heat pump itself.

Heat pumps typically last 10 to 15 years with proper maintenance. In Central and Eastern Pennsylvania, where the system runs in heating and cooling demand for a substantial portion of the year, a unit in or past that range that is also showing efficiency or comfort problems has likely reached the point where replacement is the more honest conversation. Our technicians will give you a straight read on where your system stands.



Schedule Your Heat Pump Replacement with Haller

If your heat pump is no longer delivering the comfort your home deserves, Haller is here to help.

Do not wait for a complete failure to make the call. Our team serves homeowners across Central and Eastern Pennsylvania and will guide you through the full replacement process to make sure the right system is installed safely and correctly in your home. Contact us today to schedule your heat pump replacement consultation.

Male Haller tech with tool bag entering residential home smiling.


Frequently Asked Questions

How do I know if I should repair or replace my heat pump?

Age and repair history are the two biggest factors. If your heat pump is under 10 years old and dealing with an isolated issue, a repair usually makes sense. But if the system is 10 to 15 years old, has needed service multiple times in recent seasons, and is struggling to keep up during a Pennsylvania winter or a humid July, the math shifts. A system that is defaulting frequently to backup electric resistance heat in winter is already telling you it cannot do the job on its own. Our technicians will give you a straight answer on which direction makes sense for your specific situation.

How long does a heat pump replacement take?

Most heat pump replacements are completed in a single day. Our team removes the old system, installs and connects the new outdoor unit and air handler, checks refrigerant charge, verifies airflow, and runs full operational testing in both heating and cooling modes before leaving. If the installation involves electrical upgrades to the outdoor disconnect or changes to ductwork, the timeline may vary. We walk you through what to expect before work begins.

What size heat pump does my home need?

Sizing a heat pump correctly requires a load calculation that accounts for your home’s square footage, insulation levels, window placement, ceiling height, and how the existing system has actually been performing through Pennsylvania’s seasons. An undersized unit will fall short on a January night or during a humid August afternoon. An oversized unit will short-cycle, deliver inconsistent temperatures, and wear out faster. Our comfort specialists do not skip this step. Getting it right on the front end is what determines whether your new system performs the way it should five years from now.

Can a new heat pump lower my energy bills?

Yes. Modern heat pumps with variable-speed inverter compressors operate at significantly higher efficiency ratings than systems installed a decade ago. Because heat pumps move heat rather than generate it, they use less electricity than comparable resistance or fossil fuel systems for the same output. In Central and Eastern Pennsylvania, where your equipment runs hard across four distinct seasons, replacing an aging unit with a properly sized, high-efficiency system typically produces a meaningful and consistent reduction in monthly energy costs.