Mini Split Performance Starts with Correct Sizing and Placement

A system that is too small cannot maintain comfortable temperatures during a Lehigh Valley heat wave or the coldest stretch of a Central Pennsylvania winter. A system that is oversized short-cycles, reduces humidity control, and wears faster. Getting it right requires more than calculating square footage.

Haller’s NATE-certified technicians serve homeowners across Central and Eastern Pennsylvania. We assess your home’s layout, insulation, existing infrastructure, and the real seasonal demands of this region before recommending a system. Every installation is backed by our 100% satisfaction guarantee.

(717) 204-8120

4.7
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How Mini Split Installation Works with Haller

Haller follows a proven installation process to ensure your new mini split is sized correctly and performs exactly as it should from day one.

We start by evaluating your space, comfort needs, and energy goals to determine the best mini split solution for your home. In older homes throughout Lancaster County, wall construction, electrical service capacity, and available mounting locations vary in ways that affect both the unit selection and where indoor and outdoor components can be placed. Our team designs a system layout that maximizes efficiency while providing targeted comfort where you need it most.

We help you choose the right mini split system based on performance, features, and budget. We give you clear pricing before any work begins. If your existing electrical service requires modification to support the new system correctly, we explain that as part of the recommendation rather than after the fact.

Our NATE-certified technicians install your indoor and outdoor units with precision, following all safety standards and manufacturer guidelines. We minimize disruption to your home while ensuring every component is properly connected and secured. Once installation is complete, we thoroughly test your system and walk you through how to use and maintain your new mini split before we leave.

(717) 204-8120


What Our Customers Are Saying

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4.7
Based on 2656 reviews
Jo-Lyn Hricik
2 days ago
Shawn was my tech today do my yearly maintenance to me A/C unit. He did an amazing job!
Russ Hughes
2 days ago
The service techs where friendly and knowledgeable Thanks Russ
Lisa Carter
2 days ago
I just got a new plug-in hybrid vehicle and wanted a 220 outlet installed in the garage so it would charge it faster. There was the option of using 110 with my car which I used when I first got the car but it takes about 10 or 12 hours to get it fully charged. Since the 220 outlet was just installed, I donโ€™t know exactly how long it will take but Iโ€™m sure itโ€™s much faster. Iโ€™ve had Haller in the past and was always happy with their work. They came today and gave me an estimate and it was over $200 less than another quote I got. I was so happy that he could actually do it the same day! Very happy with the technician and their service and would gladly recommend them to other homeowners.
Peggy Rooney
2 days ago
Brandon was here for scheduled routine maintenance on my heat pump and water heater. He was courteous and performed maintenance in an efficient manner and without disruption to my normal routine. I highly recommend Haller Enterprises!
David Marks
3 days ago
Shane is amazing. Above and beyond the call of duty
Gregory Konat
3 days ago
The technician, John Wentz was very efficient, knowledgeable and professional. Highly recommend.
Karen Bryan
3 days ago
My experience today was great.my technician was prompt, courteous, thorough and extremely professional. I'd certainly recommend.
John Wallach
4 days ago
Phillip did a great job, paying much attention to detail.I could not have asked for a more thorough preventative maintenance visit.
Chris was very thorough, efficient and had a calming personality. I share that because he was totally comfortable with my inquiries and he explained without hesitation! I appreciate his review of my furnace and ducts pertaining to the system with video explanation to reassure me the work was thoroughly done and system was in good health! This was my first experience with my new annual maintenance contract and I'm very happy and look forward to my next service. I'm about prevention so this annual plan seems to be a good fit to my needs! Customer service is also important and Chris is deserving of a shout out!
don swasing
4 days ago
Great attitude, worked safe, great communication Efficient and thorough
ron roda
6 days 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
7 days ago
Ben is fantastic! His job here was complicated. He was professional and executed the job perfectly. Thank you Ben
Jo Roeting
7 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
1 week 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
1 week 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
1 week ago
Technician knowledgeable and professional. Completed work effiently and in a timely manner. Replaced part per recommended schedule. Good maintenance appointment!
sharon brumley
1 week 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
1 week 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
Anthony Billett
1 week 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
1 week ago
Nevin was cordial, knowledgeable, and respectful.
Charles Snyder
1 week 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
1 week 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
1 week ago
Nick H was very respectful, pleasant, knowlegable and efficient during our annual hot water heater maintenance and plumbing system checkup.
Jim Morrissey
1 week ago
Shawn is a gentleman and a professional.

(717) 204-8120

Signs It Is Time for a New Mini Split

A mini split system is built to provide efficient, reliable comfort, but like any HVAC system, it will not last forever. Recognizing the signs of a failing or outdated unit helps you avoid unexpected breakdowns.

Mini splits typically last 20 or more years with proper maintenance. In Central and Eastern Pennsylvania, where a system runs through both hot, humid summers and cold winters, systems that are not maintained regularly accumulate wear faster. If yours is showing any of the following signs, replacement on your schedule is better than a failure mid-season.

If certain rooms are too hot while others stay too cold, your mini split may no longer be distributing air properly. That often signals declining performance or a system that was never correctly sized for the space. Homeowners in Bethlehem who notice this pattern heading into summer are typically dealing with a system that has hit its limit.

An unexpected increase in energy costs can point to an inefficient system working harder than it should to maintain comfort. Older mini splits lose efficiency over time, and in a region with Pennsylvania’s four distinct seasons, that inefficiency shows up on the bill year-round.

Needing repeated repairs is a clear sign your system is nearing the end of its useful life. A mini split in Altoona that cannot make it through a full year without a service call has likely reached the point where continued investment does not make financial sense. Upgrading to a new unit provides more reliable performance and eliminates the repair cycle.

Strange sounds or persistent odors from your system should not be ignored. These can indicate internal wear, electrical issues, or buildup that has progressed beyond what cleaning resolves. When that is the case, replacement is typically the more reliable answer.

Benefits of Installing a New Mini Split

A correctly sized and properly installed mini split system operates efficiently, quietly, and reliably through every season Pennsylvania puts it through. That is exactly what it should do.

These are the practical differences a correct installation makes compared to an undersized, aging, or improperly configured unit.

New mini split systems are designed to use less energy while delivering consistent heating and cooling. In Lancaster and across the region, homeowners who upgrade from aging units to current high-efficiency systems typically see a meaningful reduction in monthly energy costs without sacrificing comfort.

Mini splits allow you to control temperatures in individual rooms or areas independently. You can maintain different temperatures in different spaces, reduce energy use in unoccupied rooms, and ensure everyone in the household stays comfortable without conditioning the entire home uniformly.

Today’s mini split systems operate with minimal noise and fewer mechanical issues than older units. With proper installation from Haller, you get dependable comfort without the disruptions of loud or inefficient equipment running in the background.

Why Pennsylvania Homeowners Choose Haller for Mini Split Installation

Installing a mini split is an investment, and you want to work with a proven team. Homeowners throughout Central and Eastern Pennsylvania trust Haller for dependable service, expert workmanship, and honest recommendations.

Haller’s NATE-certified technicians have been installing and servicing HVAC systems in Pennsylvania homes since 1981 and bring that accumulated regional knowledge to every job.

Our team has extensive experience installing mini split systems in homes of all sizes and layouts across the region. We ensure every system is properly sized and installed for optimal performance โ€” whether that is a single-zone installation in Harrisburg or a multi-zone system in a larger home in Exton.

Your installation is handled by NATE-certified technicians who meet the highest industry standards. That means expert knowledge, precise workmanship, and confidence in the quality of your system.

As a Carrier Factory Authorized Dealer, we install trusted, high-performance equipment backed by strong manufacturer support. You have access to some of the most reliable and efficient mini split systems available, installed by a team trained to Carrier’s standards.

Haller is a BBB Accredited Business, reflecting our commitment to honesty, transparency, and customer satisfaction. Homeowners choose us knowing we stand behind our work and our reputation.

We offer financing options to make upgrading your comfort more manageable. With convenient payment plans, you can invest in a new mini split system without added financial stress.

You receive a clear quote before any work begins. The price we quote is the price you pay.

(609) 799-3434



Male Haller tech with tool bag entering residential home smiling.

Schedule Your Mini Split Installation Today

Since 1981, Haller has been helping homeowners across Central and Eastern Pennsylvania get the right system installed correctly. We are ready to help you do the same. Contact us today to schedule your mini split installation.


Frequently Asked Questions About Mini Split Installation

How long does a mini split installation take?

Most mini split installations can be completed in a single day, depending on the number of zones and the complexity of the setup. Multi-zone systems may take longer, but our team will give you a clear timeline before work begins.

How do I know what size mini split system I need?

The right system size depends on your home’s square footage, layout, insulation, and the heating and cooling demands of Pennsylvania’s four-season climate. Our team performs a detailed evaluation to recommend a properly sized system rather than applying a standard formula.

Can a mini split heat and cool my home?

Yes. Mini split systems provide both heating and cooling, making them a versatile year-round comfort solution for individual rooms, additions, or entire homes.

Will installing a mini split require major changes to my home?

Mini splits are less invasive than traditional HVAC systems because they do not require ductwork. Installation typically involves small wall penetrations and strategic placement of indoor and outdoor units.

How often does a mini split need maintenance?

Regular maintenance is recommended at least once a year to keep your system running efficiently and reliably. Routine service helps extend the life of your system and prevents unexpected issues from developing between seasons.

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