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

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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 2653 reviews
ron roda
21 hours ago
Nevin performed his tasks @ hand with,precision, perfection, performance, professionalism & punctuality… Additionally , we will tell our friends & family about Haller & there professionalism….& Most important is that they are reasonably priced…. that is a big big deal! And to top it off was the tech Nevin!!! Dude knows his s#ยฉยฅ ! I kinda hung out with him during the job & in that short amount of time I picked up some pointers! 1st Pointer was how to measure connecting copper wire…..2nd…process of elimination…easy to say … but…..Nevin nailed it with his model of patience attitude… If we have issues in the future, which of course will occur, we will be asking for Nevin !
Gale Zorian
2 days ago
Ben is fantastic! His job here was complicated. He was professional and executed the job perfectly. Thank you Ben
Jo Roeting
2 days ago
Shawn was her today to do maintenance on my gas furnace and hot water heater. I feel he does a great job!
Denise Shirker
3 days ago
Communication was great. Excellent job on repair. This is the 2nd time I have used Haller and will definitely use them in the future. Very professional.
Carol S
3 days ago
Haller technicians are great! They are always polite and knowledgeable. They donโ€™t rush through the task but are extremely thorough. I appreciate this level of service.
Donald Palmer
3 days ago
Technician knowledgeable and professional. Completed work effiently and in a timely manner. Replaced part per recommended schedule. Good maintenance appointment!
sharon brumley
4 days ago
We are very appreciative that Kenneth ( and Haller) were able to fit us into the schedule earlier than originally scheduled. Kenneth was timely, very personable and thorough in examining our electrical system. It is a comfort to know our system is operating normally and no issues of concern were noted.
Amy Love
4 days ago
Susan and Ross Bare would like to thank the wonderful technicians who braved the cold last night to restore our heat and came again today follow up. The Maintenance agreement is well worth it if you ever encounter an off hours problem. Our family members have been long time Haller customers as well and we're proud to have our homes serviced by a local company who truly cares about their customers
Louann Green
4 days ago
As far as Brayden.i give him a 5 star review..
Anthony Billett
4 days ago
Thank you" to Haller for our recent HVAC installation. From the proposal to end of the project, the Team was communicative, professional, and promptly responsive. I would highly recommend this business for your heating, venting, or plumbing Needs.
They came out the day I called them and inspected the heat and ac units. They explained all the issues they found. They did a great job installing the new furnace and AC condenser. The new setup is 100 times better than the old setup.
Xavier Martinez
4 days ago
Nevin was cordial, knowledgeable, and respectful.
Charles Snyder
5 days ago
Kurtis provided excellent response and service to my A/C questions and concerns. He was very professional and thorough in handling the A/C call.
Mike Minney
5 days ago
Gabe did a fantastic job getting rid of the old 50 Gallon Water Heater, replacing it with a Tankless Model. Also updated the Plumbing Home Run Manifold, labeling and making everything much cleaner and more efficient. Recommend Gabe for Plumbing anytime!
Bob Shepp
5 days ago
Nick H was very respectful, pleasant, knowlegable and efficient during our annual hot water heater maintenance and plumbing system checkup.
Steve Becker
5 days ago
Shawn was technically knowledgeable and very personable and directed us through the steps needed to get our furnace repaired.
Jim Morrissey
5 days ago
Shawn is a gentleman and a professional.
Kate L
1 week ago
The service technicians arrived on time and were friendly and professional. Mark, clearly explained all of my replacement options and provided a straightforward quote for me to review before work started. He gave me an estimate of how long the job would take and they were able to replace same day within the time quoted.
James Gorey
1 week ago
The tech was outstanding he explained everything that he was doing
Jay Hess
1 week ago
Technicians were prompt, courteous, excellent job!!
Jeff Dodd
1 week ago
Christian W just serviced our hot water heater and did an excellent job. He was on time, professional and very knowledgeable. Another 5 star performance by Haller!
Aida Nunez
1 week ago
Professional, knowledgeable, and super nice!
Westley was great. Very professional, explained everything he was doing and assessing. Also helped me understand my options. Highly recommend
Gary Kutay
2 weeks ago
Carl as always was knowledgeable and professional. Did a great job with the four units we have. Work done in a very timely manner.
Jason Phillips
2 weeks ago
From the time I called to schedule the appointment to the time the technician left, only 3 hours passed. Quick, timely service. Carl was very kind and professional and fixed our leaky AC.

(609) 799-3434

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
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(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.

(833) 222-2953


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

(609) 799-3434

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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