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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 9499 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

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 2687 reviews
leighs522
9 hours ago
Prompt knowledgeable service.
Dennis Carroll
11 hours ago
Trenton arrived on time to perform an annual pre-winter furnace inspection. He was friendly and personable, and set about with the inspection immediately. Performed all the required equipment checks and readings, and changed the filters. He was absolutely professional in his demeanor and highly skilled in his technical expertise. Just what I have come to expect from all of Haller's associates. Happy to provide my highest recommendation to Haller Enterprises and their outstanding staff and technicians.
John P.
4 days ago
Ricardo provided our fall tune-up. He was very thorough and answered any questions I had regarding our heating system. In addition, he was very personable and completed the work in a short amount of time allowing me to free up the rest of my day. Any time I call Haller they are friendly and able to answer any of my questions. I would recommend them for future HVAC needs.
Kate Ritter
4 days ago
Christopher was wonderful. He clearly explained everything to me.
Nevin was thorough, knowledgeable, and competent. I’ve never had my water heater and boiler cleaned as well as he did. I’d like to have him back! Thank you!!
Haller is fantastic, PM time of the year, expert FSE Jonathan onsite, completed the service of all units in a few hours, we were back up and running in no time. Customer Service & FSEs are courteous & knowledgeable. Highly recommended. Charles.
Sarah Elizabeth
5 days ago
Above and beyond service!
Spider Lee
5 days ago
Haller HVAC technician Kenneth M. came to my home to inspect my HVAC system. As a part of the "Home Comfort Club," I was scheduled for a furnace check-up. Kenneth very patiently explained to me what he was doing, and how my system measured on his instruments. He made some recommendations for me to consider. He was professional, efficient, and friendly. I much appreciate Haller technicians taking their time to educate me on the various systems in my home.
Ryan Lange
6 days ago
Michael was prompt and efficient. He chose an option to solve my outlets problem that saved me time and money. He was exceptionally knowledgeable and explained what he was doing as he was doing it so a non-expert could understand it. I learned from the experience and now have a working outlet. I'll call upon Haller again if I need more work done. Thank you, Michael!
Gale Zorian
6 days ago
Carl is great! …Professional, personable and executes his work beautifully. He is my main HVAC person… Thank you Carl
Kathy Sapio
6 days ago
Jonathan did a great job to install a water heater the same day! The Haller Team came thru for me again with quick service after another local contractor failed. Simply the best and most efficient.
Daniel Tinker
7 days ago
Great service and work
tina coumbe
1 week ago
Always great service. Thank you
Deborah Audette
1 week ago
Require electrician. Haller always easy to work with, prompt service and responsive. Great service. Less than 24 hours from phone call to replacment of water tank to having hot water.
Kenneth Reitz
1 week ago
The services I had done today was check the AC unit indoor and outdoor for general maintenance and also the hot water heater for general maintenance
Mike Lutz
1 week ago
Nicholas examined the damage, informed me of the required action and the initial cost for the leak detection, Then he proceeded to explain what he needed to do. He went about his business competently and efficiently. He maintained good communication during and after his work.
Ruth Justice
1 week ago
Jason first came and listened and understood what needed to be done. When he returned all of the work was done efficiently with all my questions answered. Jason looked me in the eye and took time to explain things.
john loeper
1 week ago
Very professional, detailed, excellent service, courteous, knowledgeable.
Les Weiner
1 week ago
Fast friendly service by a qualified technician. Chris M is the best technician EVER. He treats my equipment like it is his own. He is through and does not miss anything. Why use anyone else but Haller, they know how to service their customers properly.
Steve Buxton
1 week ago
Always prompt and professional.
C Betz
1 week ago
Nevin was very professional and took time to explain the issue. Very satisfied with his service.
Debbie Moore
1 week ago
Technician, Kenneth M., was very professional and worked with efficiency. Going down into the crawl space in my home is never fun, but he didn’t complain at all about it. I was rather surprised at the cost of the filter replacement. That seems to have gone up significantly since it was last changed.
Wes is fantastic! He always explains things thoroughly and gives us great advice. He takes the time and is very thorough.
Jason McAlpine
2 weeks ago
Wonderful!
Michael Dean
2 weeks ago
Techs always do a good job and explain what they are doing which is helpful. I’m a twelve year customer.


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.