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Complete Solutions for All Your Ductless Mini Split Needs

Ductless mini split systems are highly efficient and versatile, but getting the most out of them depends on expert installation and care.

Proper sizing, placement, and setup all play a critical role in performance, energy efficiency, and long-term reliability. Our NATE-certified technicians can assist with:

In addition to ductless services, Haller offers a full range of home comfort solutions to keep your entire system running smoothly, from traditional heating and air conditioning installation and repair to indoor air quality upgrades.

(717) 204-8120


Your Local Mini Split Experts

When it comes to ductless mini splits, Haller brings decades of trusted experience and a strong commitment to doing the job right.

Serving Central and Eastern Pennsylvania since 1981, we have built a reputation for dependable service, skilled workmanship, and a focus on safety in everything we do. Every service is backed by our 100% satisfaction guarantee, so you can feel confident you are getting quality results and lasting performance.

Emergency Service

HVAC Systems Serviced

Scheduling Mini Split Services Couldn’t Be Easier

Getting ductless mini split service from Haller is straightforward, and our team handles the details from the first call to the final walkthrough.

Give us a call or reach out online to get started with your service request. Our friendly team will gather a few details about your needs and help guide you to the right solution.

We work with your schedule to find a service time that fits your routine. With flexible options and prompt communication, you will always know when to expect us.

Our NATE-certified technicians arrive on time, ready to assess your system and complete the work efficiently. We make sure everything is running smoothly and answer any questions before we leave.

Haller technician greeting woman at her door with a handshake

(717) 204-8120


What Our Customers Are Saying

Learn More About Our 100% Satisfaction Guarantee

4.7
Based on 2725 reviews
Richard Morrison
10 hours ago
Jonathan is fantastic! He always explains things thoroughly and gives us great advice. He takes the time and is very thorough.
Spider Lee
11 hours ago
Haller Plumbing technician Gabriel H. came to my home to replace my main water shut-off valve. Gabe has performed plumbing work in my house multiple times. He is good at what he does, for sure. He is very professional, efficient, friendly, and patient. Gabe is an excellent representative for Haller Enterprises.
Jim Deichert
12 hours ago
Although Nate was here for routine maintenance of my heat pump system, he observed during the service that my water heater’s expansion tank was leaking. Even though it was just installed about a year ago, it had sprung a leak in the bottom. Nate replaced the expansion tank with a new one. Everything was under warranty or is covered by my annual membership. Therefore it didn’t cost me anything today. Nate did an excellent, excellent job. Haller is fortunate to have employees like Nate!
Carl Bossler
14 hours ago
Prompt, professional as expected. All work performed was explained thoroughly.
Services were professional as always!
Chris was our technician. He was very respectful, and asked if there was anything that I had questions about. I could tell that he had good work ethics. I then trusted that he was doing a great job.
Bob Gilbert
2 days ago
Great service and information. Especially regarding CO2 monitors.
Kimberly Jacobs
3 days ago
Very personable and made sure everything was clear.
Holly King
3 days ago
Haller has updated some of their communications. I received confirmation of my online booking. A text with picture of who was coming. Another text to state employee was on the way. If you are looking out for safety, I can't recommend a better company. I have been using Haller services for about 10 years. Haller has been great about everything. I know some of you are going to say expensive. I have never needed a second visit for anything that they fixed. Done once and done right. Thank you!
Eugene Amoro
3 days ago
Great job, on time and very professional!
Penny Duke
3 days ago
On time, respectable, did not waste my time or his. Would recommend.
David Burke
3 days ago
Kurtis knows what he's doing! He did a great job repairing our heating system.
Excellent service—Nick was courteous, knowledgeable and efficient. He went beyond what he was asked to do.
David
4 days ago
Today we had routine service on our heat pump system and hot water heater. Notice of and arrival exactly as scheduled. Communication of system performance was outstanding and the explanation of some necessary replacement parts was commendable. Five star review is well deserved.
Bruce Shipley
4 days ago
Our church in Downingtown recently constructed a memorial garden. This was a fairly diverse project that required masonry, landscaping, and electrical crafts. We selected Hallar for the electrical portion of the project which required them to work closely with the mason in order to ensure a coordinated installation. Things went very well and the end result was a very successful project. Hallar installed the lights and a timer system which make for a very subdued and quiet setting in the evenings. In addition, during excavation for the masonry walls, our water service pipe was damaged. Because Hallar’s is a multi-craft company they were able to make the necessary repairs to the water line without any disruption to the project schedule at a very reasonable price. We would recommend Hallar’s for any project which requires electrical, plumbing, or HVAC expertise. They are proven to be cooperative, timely and highly skilled.
Keith Hunsicker
6 days ago
Wesley arrived at the designated time frame the appointment was made. He answered all are questions and addressed the concerns we had. The HVAC inside system is located in the attic and is not easily accessible. Wesley brought a ladder and was able to get the job done. He was very polite and honest. He also made sure to wear foot coverings while inside the house. A job well done!
Giora Bendor
6 days ago
Checked my instant water heater as part of the maintenance contract.ordered gasket was mishandled causing delay in repair.
Stewart Abowitz
6 days ago
Connor is very knowledgeable of the repair he needed to do.
Mary Wright
6 days ago
Nicholas was knowledgeable, efficient, tidy and punctual. Very easy to work with him.
Donald Humphrey
7 days ago
The service was extraordinary. My service person was polite, informative and customer centric. This person is the type of person you want engaging with people. I also learned some good ac and furnace tips. I give Shane 5 stars….out of 5.
Pat ONeill
7 days ago
Larry knew his stuff!
Sent me pic of technician that would be doing the service. This is great. Work was done professionally and methodically ensure all components inspected and verified.
Alyssa Lewis
1 week ago
Nevin was great and super helpful! Will definitely recommend Haller to family, friends and clients! Thank you!!!
Gus G
1 week ago
The tech was very thorough. Friendly and knowledgeable. Arrived on time.
Lindsey Key
1 week ago
Exceptional service, got us in a timely manner and they were very clear at explaining everything that was being fixed.

(717) 204-8120

Ductless Mini Split Repair Services

Even the most efficient ductless systems can run into issues over time.

Haller’s NATE-certified technicians quickly diagnose problems and deliver lasting ductless hvac repairs across Central and Eastern Pennsylvania to keep your system running at peak performance.

If your mini split is not keeping your space comfortable, the issue could be low refrigerant, a clogged filter, or a failing component. We pinpoint the cause and restore proper operation so you get consistent comfort again.

Unusual sounds or musty smells coming from the system often signal internal problems or buildup. Our team inspects, cleans, and repairs the unit to eliminate disruptions and improve air quality.

Water leaks or excess condensation can indicate a clogged drain line or other internal issue. We resolve the source of the leak and help prevent future water damage.

If your ductless system will not start, the problem may stem from electrical components, the thermostat, or internal controls. We troubleshoot the system and get it back up and running safely.

Uneven comfort between rooms can point to sensor issues, improper settings, or system malfunctions. We recalibrate and repair the system to ensure balanced, reliable performance throughout your home.


24/7 Emergency Ductless Mini Split Service

When Your System Fails, We Respond Around the Clock

A ductless system that fails in the middle of a July heat wave or a January cold snap is not something that can wait until business hours. Haller’s NATE-certified technicians are available 24/7 for emergency ductless mini split service across Central and Eastern Pennsylvania, getting comfort restored to your home as quickly as possible.

(717) 204-8120

4.7
Based on 9654 reviews
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North American Technician Excellence - NATE - Certifying the Finest in HVACR

(717) 204-8120

Ductless Mini Split Replacement Services

While ductless mini splits are built for long-lasting performance, there comes a point when repairs are no longer the most cost-effective solution.

Recognizing the signs of an aging or failing system helps you avoid unexpected breakdowns while improving your home’s comfort and efficiency with a new ductless system.

If your system needs constant service, those costs add up quickly. Replacing the unit provides a more reliable and long-term solution.

An older or inefficient system works harder to maintain comfort and uses more energy in the process. A new ductless system significantly improves efficiency and lowers monthly costs.

If some rooms are too hot while others are too cold, your system is no longer performing properly. A replacement restores balanced, dependable comfort throughout your home.

Most ductless mini splits last 20 years or more with proper maintenance. If your system is approaching or past that range, upgrading prevents unexpected failures.

Newer ductless systems offer improved performance, smarter controls, and better energy efficiency. Replacing an old unit lets you take advantage of modern comfort and convenience.

Ductless Mini Split Maintenance

Routine maintenance is key to keeping your ductless mini split system running efficiently and reliably year-round.

Ductless systems that run in both heating and cooling mode accumulate operational hours faster than single-season equipment, which makes regular service more important, not less. Consistent maintenance delivers the following benefits:

A clean, properly charged system runs at its rated efficiency, which shows up in your monthly utility costs across all four seasons. 

Regular service reduces wear on the compressor and key components, adding years to the usable lifespan of the system.

Small issues caught during maintenance do not turn into mid-season failures when the system is under the most demand.

A well-maintained system holds setpoints accurately across every zone, so no room runs too hot or too cold.

(717) 204-8120


Homeowner greeting Haller technician at the door for maintenance

The Haller Home Comfort Club

Protect Your System Year-Round with One Simple Plan

Home Comfort Club membership is the easiest way to stay ahead of ductless mini split maintenance.

Members get annual tune-ups, priority scheduling, and exclusive savings on repairs, all under one plan that covers your HVAC, plumbing, and electrical systems together.


Professional Mini Split Installation

Choosing the right ductless mini split system is essential for maximizing comfort, efficiency, and performance in your home.

Haller installs a variety of ductless systems designed to fit different layouts and comfort needs.

Single-zone systems are ideal for heating and cooling one specific area, such as a bedroom, home office, or garage. They provide targeted comfort with a dedicated indoor unit connected to an outdoor unit.

Multi-zone systems allow you to control temperatures in multiple rooms using one outdoor unit. This option is perfect for whole-home comfort with customized settings in each space.

Wall-mounted units are the most common and versatile option for ductless systems. They install high on the wall and deliver efficient, consistent airflow throughout the room.

Ceiling cassette systems install flush with the ceiling for a more discreet appearance. They distribute air evenly in all directions, which works well for larger or open spaces.

Floor-mounted units install near the base of a wall, similar to a radiator. They work well in rooms with limited wall or ceiling space and provide reliable comfort where other options may not fit.

Haller van parked on the street in a local neighborhood

(717) 204-8120

Pennsylvania’s Trusted Mini Split Pros

Our technicians are NATE-certified, demonstrating advanced knowledge and skill in HVAC systems. Your ductless mini split service is handled by highly trained professionals.

Since 1981, Haller has served Central and Eastern Pennsylvania with reliable home comfort solutions. Our long-standing presence means we understand the needs of homes across the Lehigh Valley, Lancaster County, York, and Harrisburg.

As a Carrier Factory Authorized Dealer, we meet strict standards for quality, service, and expertise. That designation means top-tier products and installation from a team Carrier trusts to represent their brand.

Haller is a BBB Accredited Business. That accreditation reflects how we operate with every homeowner we serve.

Financing options are available for qualified homeowners to make ductless upgrades and repairs more manageable. You can enjoy improved comfort now while paying over time.

Comfort issues do not always happen during regular business hours. Our team is ready to respond quickly when you need us most.

We stand behind our work with a 100% satisfaction guarantee on every ductless mini split service. If you are not completely happy, we make it right.


Male Haller tech with tool bag entering residential home smiling.

Schedule Your Ductless Mini Split Services

When you need reliable, energy-efficient comfort, Haller is your trusted partner.

From expert installation to fast repairs and ongoing maintenance, our team is here to deliver the performance and peace of mind your home deserves. Contact Haller today to schedule ductless mini split service across Central and Eastern Pennsylvania.


Ductless Mini Split FAQs

How does a ductless mini split system work?

Ductless mini splits use an outdoor unit connected to one or more indoor air handlers to heat and cool specific areas of your home. They deliver air directly into each space, which means precise temperature control without ductwork and without the energy loss ducted systems produce.

Are ductless mini splits energy efficient?

Yes, ductless systems are highly energy efficient because they avoid the energy loss associated with ductwork. Many models use advanced inverter technology to adjust output and reduce energy consumption, which shows up in monthly costs across all four seasons in Central and Eastern Pennsylvania.

How long do ductless mini split systems last?

With proper maintenance, most ductless mini splits last 20 years or more. Regular service helps extend their usable life and keeps performance consistent across the year-round demand this region places on them.

How often should a ductless mini split be serviced?

At least once a year is the minimum, and twice a year is ideal since the system handles both heating and cooling. Routine maintenance prevents breakdowns, improves efficiency, and maintains indoor air quality.

Can a ductless mini split both heat and cool my home?

Yes. Ductless mini splits provide both heating and cooling in one system, which makes them an excellent fit for Central and Eastern Pennsylvania’s four-season climate. One system handles both winter and summer reliably.

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