24/7 Emergency HVAC Repairs

When your system fails in the middle of a hot summer night or during a freezing winter weekend, waiting for regular business hours isn’t an option.

That’s why Haller offers 24/7 emergency HVAC repair services, so you’re never left dealing with uncomfortable or unsafe conditions for long. We arrive with the tools and experience needed to quickly diagnose the issue and make the necessary repairs on the spot whenever possible. You will know what is wrong and what it costs before any work begins.

(717) 204-8120

4.7
Based on 8796 reviews
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Carrier Residential Factory Authorized Dealer
North American Technician Excellence - NATE - Certifying the Finest in HVACR

Pennsylvania’s Local HVAC Professionals

Choosing the right team for HVAC repairs makes all the difference when your comfort and safety are on the line.

Since 1981, Haller has helped homeowners throughout Central and Eastern Pennsylvania solve heating and cooling problems with proven expertise.

Safety is always our top priority, and every repair is performed with careful attention to protecting your home and your system. We stand behind our work with a 100% satisfaction guarantee.

Emergency Service

HVAC Systems Serviced

Trucks on the Road

Our Tested, Trusted HVAC Repair Process

Scheduling HVAC repair service with Haller is simple and designed to get your system back up and running as quickly as possible.

From your first call to the final repair, we make the process straightforward, transparent, and focused on your comfort.

Start by contacting Haller online or by phone to request service at a time that works for you. Our team will gather a few details about your HVAC issue to ensure we’re fully prepared for your visit.

A skilled technician will arrive on time and perform a thorough inspection of your HVAC system. We take the time to identify the root cause of the problem, not just the symptoms.

Once we’ve diagnosed the issue, we’ll explain what’s going on in clear, easy-to-understand terms. You’ll receive straightforward recommendations and upfront information so you can make the best decision for your home.

After your approval, we’ll get to work making the necessary repairs using quality parts and proven techniques. Before we leave, we test your system to make sure everything is running safely and efficiently.

(717) 204-8120


What Our Customers Are Saying

Learn More About Our 100% Satisfaction Guarantee

4.7
Based on 2580 reviews
On time, courteous, efficient. Explained everything he did and what my need done in the future. Great experience with Technician and Haller.
Excellent experience with Shane Keifer on water heater installation. In addition a shout out to Amanda for helping get us booked in a very timely and friendly manner.
Christopher is wonderful and came out quickly . He is very professional and friendly. He took care of my central air and resealed the unit in the house. Closed the vents that are not being used to keep the cold air where I needed it. I would ask for Christoper the next time I had an issue.
Haller is best.
The technician, Adam, was excellent. He explained what the problems were, and showed me the problems on my outdoor fan. He was very patient and polite. I am hard of hearing, so he spoke louder. He fixed everything, and thought of solutions that had not been mentioned to me before – like using a 2" filter instead of a 1" filter to possibly cut down on filter changes (since I cannot change them myself). He also explained how the $24/month plan worked, and set me up for that when I decided to go with it. He answered all my questions. Adam is an excellent Haller employee.
Prompt competent, courteous service
Tech Nevin top notch w/ customer service. Extremely thorough.
Adam B was really amazing to have service my AC unit. He explained things thoroughly and completed everything in a timely fashion. Future services will request him.
Excellent service
Service tech, Phil R. arrived as scheduled, diagnosed the problem quickly and replaced the part on the spot. Thank you Phil for your professionalism and your kind, personable service.
He did an excellent job. ๐Ÿ‘ He is very friendly and kind.
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
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!

Our Expert Technicians Can Repair Any HVAC System

Several HVAC systems heat and cool homes across Pennsylvania. Haller repairs these systems and others:

Cool temperature icon

Central Air Conditioning

Central air conditioners cool air from one central location in your home and distribute it through ductwork. When your AC isn’t working, you can trust Haller to fix the issue quickly.

Ductless system

Ductless Systems

These distribute cool air from a wall-mounted system and pump warm air through the outside unit.

thermostat icon

Smart Thermostats

These devices allow you to set and control the temperature in your home remotely or on a schedule. If your thermostat isn’t connected or malfunctioning, call Haller for reliable thermostat repair.

Heat Pump

Heat Pumps

Heat pumps provide heat in the winter and cool air in the summer using a reversing valve.

If your heat pump isn’t cooling or heating properly, call Haller.

Furnace

Furnaces

Furnaces use natural gas to warm air from a central location and circulate it through ductwork. A broken furnace can be uncomfortable during winter in Pennsylvania. Call Haller for fast furnace repairs.

Boiler

Boilers

Boilers supply the transfer of hot air in your home by heating a liquid (usually water) and distributing the heat through baseboards or radiators.

Humidifier

Humidifiers

These add moisture to the air, either through your central HVAC or a stand-alone system.

geothermal heating icon

Geothermal Heating

Geothermal systems transfer heat into your home from the earthโ€™s surface.

(717) 204-8120

Common HVAC Repairs Our Team Handles

HVAC systems are made up of many moving parts, and over time, wear and tear can lead to a variety of issues.

At Haller, our team is experienced in diagnosing and repairing all types of heating and cooling problems, helping restore comfort to your home quickly and efficiently.

Low refrigerant levels can cause your air conditioner to struggle to cool your home effectively. We locate the source of the leak, repair it, and recharge the system to restore proper performance.

A malfunctioning thermostat can lead to inconsistent temperatures or a system that won’t turn on at all. We repair or replace thermostats to ensure accurate temperature control and reliable operation.

Electrical issues like faulty capacitors, relays, or wiring can prevent your system from running safely. Our technicians identify and replace damaged components to get your system back online.

Clogged condensate drain lines can cause water leaks and even system shutdowns. We clear blockages and ensure proper drainage to prevent further damage.

If your system isn’t moving air properly, a failing blower motor could be the cause. We repair or replace the motor to restore consistent airflow throughout your home.

Heating systems that won’t start often have ignition or pilot light problems. We troubleshoot and repair these components to safely restore heat when you need it most.

Why Your Neighbors Trust Haller for HVAC Repairs

When your HVAC system needs repair, you want a company that delivers reliable results and a smooth experience from start to finish.

Pennsylvania homeowners continue to choose Haller because we combine proven expertise with responsive service and long-term support.

HVAC problems don’t wait for business hours, and neither do we. Our team is available around the clock to respond quickly and restore your comfort when you need it most. 

Our Home Comfort Club makes it easier to stay ahead of unexpected breakdowns with routine maintenance and exclusive benefits. Members enjoy added peace of mind, priority service, and long-term savings on repairs.

Our technicians are NATE-certified, which means they’ve met some of the highest standards in the HVAC industry. You can trust that your system is being repaired by highly trained professionals who know how to get the job done right.

Haller is proud to be a BBB Accredited Business, reflecting our commitment to honesty, transparency, and customer satisfaction. We work hard to earn and maintain the trust of every homeowner we serve.

As a Carrier Factory Authorized Dealer, we meet strict standards for technical expertise and customer service. This distinction means you can expect high-quality repairs backed by a trusted name in HVAC.

HVAC technician showing homeowner inside of furnace

(833) 222-2953

(609) 799-3434

Should You Repair or Replace Your HVAC System?

Some HVAC issues can be fixed quickly, while others may point to bigger problems that make replacement the smarter long-term investment.

At Haller, our technicians evaluate several key factors to help you make the right decision for your home and budget.

The age of your HVAC system plays a major role in whether repair or replacement makes sense. If your system is more than 10โ€“15 years old, frequent repairs may be a sign it’s nearing the end of its lifespan.

Consider how much the repair will cost compared to the value of your system. If the repair is expensive or keeps recurring, investing in a new system may save you more money over time.

Older systems tend to be less efficient, which can lead to higher energy bills. Replacing your system with a newer, high-efficiency model can improve comfort while reducing monthly operating costs.

If your HVAC system needs repairs more often than not, it may no longer be reliable. Ongoing issues can add up quickly, making replacement a more practical and stress-free solution.


Stay Ahead of HVAC Issues with Regular Maintenance

Keeping up with routine HVAC maintenance can make a big difference in preventing unexpected issues.

Regular service allows technicians to identify minor problems before they turn into major repairs, while also helping your system run more efficiently and last longer.

With Haller’s Home Comfort Club, staying on top of maintenance is simple. Our membership program includes scheduled tune-ups, priority service, and exclusive benefits that help you avoid costly repairs and keep your home comfortable year-round.

Homeowner greeting Haller technician at the door for maintenance



Male Haller tech with tool bag entering residential home smiling.

Schedule HVAC Repairs with Haller

When your HVAC system breaks down, getting it fixed quickly and correctly becomes your top priority.

At Haller, we focus on delivering prompt service, accurate diagnostics, and dependable repairs that restore comfort without added stress. No matter the issue, you can count on us to provide honest recommendations and quality workmanship every step of the way.

Call or contact us online to book your HVAC repair today.


Frequently Asked Questions About HVAC Repairs

How do I know if my HVAC system needs repair?

Common signs include unusual noises, weak airflow, inconsistent temperatures, or higher energy bills. If your system isn’t performing the way it should, it’s best to have it inspected by a professional.

How quickly can Haller respond to HVAC repair requests?

We offer prompt scheduling for standard repairs and 24/7 emergency service for urgent situations. Our goal is to respond as quickly as possible and restore your comfort without delay.

What happens during an HVAC repair appointment?

Our technician will inspect your system, diagnose the issue, and explain the recommended solution. Once you approve the work, we’ll complete the repair and test the system to ensure it’s running properly.

Is it better to repair or replace my HVAC system?

It depends on factors like the system’s age, the cost of repairs, and how often it’s breaking down. Our team will provide honest recommendations to help you choose the most cost-effective and reliable option.

How can I prevent future HVAC problems?

Routine maintenance is key to avoiding unexpected breakdowns and improving system performance. Joining Haller’s Home Comfort Club makes it easy to stay on schedule with professional tune-ups and ongoing care.

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