Fullerton’s Local Air Conditioning Experts

Haller is proud to have served Fullerton and Lehigh County residents since 1981! Our team has built a reputation for quality workmanship, honest recommendations, and customer-first care.

From Fullerton’s humid summers near Jordan Creek to the heat that settles across Lehigh County, our technicians prioritize safety above all else during every AC installation. We follow strict protocols so your new system delivers reliable performance immediately. Scheduling with our team is straightforward. We back every air conditioning installation in Fullerton with a complete satisfaction guarantee. Fullerton homeowners rely on Haller for trustworthy cooling through Pennsylvania’s sweltering season.

(717) 204-8120

4.7
Based on 9154 reviews
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Carrier Residential Factory Authorized Dealer
North American Technician Excellence - NATE - Certifying the Finest in HVACR

Emergency Service

HVAC Systems Serviced

Drains Cleared

Trucks on the Road


Our Easy Scheduling Process

Getting your new air conditioning system installed in Fullerton through Haller follows a straightforward approach that works around your schedule. Our team handles every step efficiently, from initial contact through complete system testing. You can start enjoying dependable cooling in your Fullerton home without delay.

Call Haller or request an appointment online. Our team gathers a few details about your home and schedules your in-home consultation for air conditioning installation in Fullerton.

One of our comfort specialists assesses your space and discusses your comfort goals. We walk you through system options with clear, upfront pricing. You can make a confident decision about air conditioning installation in Fullerton.

Our experienced technicians handle every detail. We test your new system and make sure everything is operating properly. We answer your questions before we leave your Fullerton home.

(717) 204-8120


What Our Customers Are Saying

Learn More About Our 100% Satisfaction Guarantee

4.7
Based on 2637 reviews
David Acaster
6 hours ago
We had been having air conditioning issues for a couple years where we had to fix it multiple times a year. We discussed the issues with our current air conditioning repair company who said the problem was the ac was getting near end of life and was struggling to keep the house cool when it got hot out. We asked them to give us a quote to replace the system. The person who came out only wanted to sell us on heat pumps and a lower quality air conditioner than what we had. So we contacted Haller to come out to give us a second opinion. One of their sales people ( Alex Steffy) came out looked at our current system and provided us with a variety of options to address our issue. He was very professional knowledgeable and polite. He explained why we had issues and how we should possibly remedy them. He provided 3 separate quotes outlining exactly what what equipment we would be getting and the cost for each option. The installation was done quickly and professionally by two gentlemen. The even offered a 5 year warranty though Haller in addition to the 10 year warranty by carrier. They may be a bit more expensive but I believe the service and care your get from them is worth the extra money.
Fred Tiny
10 hours ago
We had an issue with what looked like a tiny drip in the basement, but Nathan who was amazing (friendly, caring and very professional) spent the necessary time checking out all the area. He found a bird had built a nest in the dryer outside vent causing this crazy scenario. He found it and fixed it that same day. 100% satisfied from this service.
Katherine Heisey
13 hours ago
The technician , Christian S. , was very prompt and solved our issue !
Heather Magrecki
13 hours ago
1 – I can't believe how fast and easy it was to get an appointment. 2 – I love that they confirm the apt. 3 – I appreciate that they sent a text with the ETA of the technician, let me track how soon he'll be here so I can prepare the dogs, and give me a picture of what he'll look like. That is awesome. 4 – got us up and running again in record fast time. I completely and totally recommend Haller!!
CHRISTIAN Dahme
2 days ago
Quick, friendly and inexpensive! I was so pleasantly surprised with this company! Thank you so much Shane!
Albert Dodson
2 days ago
Incredibly detailed inspection and service of the equipment. Best ever
David Levens
5 days ago
Outstanding service, price was way to high
Brandon Sandy
5 days ago
Chris was very knowledgeable and professional during my sewer pump repair. I would recommend Chris and Haller to anyone needing this service.
Barbara Conway
6 days ago
Our service was completed thoroughly and professionally. Westley was knowledgeable, respectful, and courteous. We were left feeling our maintenance service had been completely very efficiently.
Thomas Conway
6 days ago
Great prompt service. Very polite and efficient!
C Betz
7 days ago
Very professional and did a great job explaining the situation.
Cat Tetley
1 week ago
Scheduled an estimate for what we thought would be a complicated fix. Arrived on time, pleasant, thoroughly assessed the situation, made his professional recommendations, and didnโ€™t try to upsell me on any extra repairs that werenโ€™t urgent, and actually let us know that the wiring situation didnโ€™t require an expensive replacement or re-wiring, just someone comfortable with that specific wiring and hardware layout. Would call them again.
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.
Shane was amazing! not only competent, but great with which to work. Super happy.
Robert Schwartz
1 week ago
Mark came and adjusted the setting on our water softener that were effected by a power outage in our area. He was prompt, pleasant and explained how things were done.
Jeff Thornton
1 week ago
Jason from Haller-Electric did a great job troubleshooting an issue in our old home. Quickly diagnosing our issue and solving our problem, and he did so with a positive, conscientious and professional attitude. Well done and thanks!
Shawn was excellent as diagnosing a problem that was not previously identified by other technicians. He explained it very clearly and was doing so in our best interest. He was not pushy or come off as โ€œa salesmanโ€, just letting us know what the issue was. I will definitely be requesting him to do all future maintenance and repairs!
Debbie Stover
2 weeks ago
Excellent service and explained options very well! Professional across the board!
Kelly Good
2 weeks ago
The technician was very helpful and provided information to assist me if I had problems in the future with my smoke detectors.
Jean Gibb
2 weeks ago
We were very pleased with the great job that the haller guys did in repairing the water leaking problem that we had with our split.
Steve Lazun
2 weeks ago
Jesse is extremely knowledgeable. He diagnosed the problem with my AC that others had missed.
John Brown
2 weeks ago
Excellent knowledge and service. He chose the correct fix out of 2 possibilities causing the problem.
Alison Woo
2 weeks ago
Haller has a solid offering overall and I like they have many different disciplines. Jesse Brubaker did a great job doing my semi-annual review of my key machines including two air conditioners and a water heater. Excellent work all around!
Jo-ann R.
2 weeks ago
The technician, Eric , called in the morning of my ac and furnace installation to let me know he was on his way. Upon arrival he and Connor reviewed the process for the day and layed down plastic to prevent damage to my floors. Another gentleman joined them at some point to complete the job. overall very satisfied with courteousness and professionalism. Haller came recommended and would do the same for anyone looking for installation or yearly maintenance services.
Andrew Peterman
2 weeks ago
I used Haller Enterprise to replace some plumbing and was very pleased.

(717) 204-8120

How to Know If It’s Time for a New Air Conditioner

Your air conditioner may need replacement if it’s struggling to keep up with Fullerton’s summer heat.

Higher energy bills, uneven cooling, and frequent breakdowns often signal that your aging or inefficient AC system in Fullerton needs replacement. Air conditioning installation becomes the smart choice in these situations. Recognizing these warning signs early helps you avoid unexpected system failures. You can plan for a more reliable, energy-efficient upgrade that can handle Pennsylvania’s demanding summer heat.

Repair calls every summer in Fullerton create mounting expenses that drain your budget. An older unit approaching the end of its lifespan may cost more to maintain than replace. System replacement becomes the smarter financial choice.

Cooling costs in your Fullerton home climb suddenly or creep up gradually. This typically indicates your system’s efficiency is declining. Modern air conditioning systems deliver more consistent comfort while using significantly less energy.

Uneven temperatures across different rooms in your Fullerton home often signal that your current system struggles with proper air distribution. Professional installation of a correctly sized replacement system will restore consistent, balanced cooling throughout your space.

Air conditioners in Fullerton typically provide 10 to 15 years of reliable service with proper maintenance throughout their lifespan. Units reaching this age range while displaying wear patterns benefit from replacement. Upgrading delivers improved reliability and greater peace of mind for Fullerton homeowners.

Types of Air Conditioning Systems We Install

From central air systems to ductless mini-splits, Haller provides complete air conditioning installation in Fullerton with high-performance equipment designed for your home’s specific requirements.

Based on your home’s layout, energy goals, and budget, our team will guide you toward the right solution for long-lasting comfort and efficiency in Fullerton.

For Fullerton homes with existing ductwork, central air conditioning systems deliver ideal whole-home cooling with consistent temperatures throughout your space. High-efficiency models available today provide reliable performance during peak summer heat. They offer improved energy savings and quieter operation.

For Fullerton homes lacking ductwork or needing targeted room cooling, ductless mini-split systems offer a flexible air conditioning installation solution. These systems provide zoned comfort control and improved efficiency. They require minimal disruption during installation.

Heat pumps deliver both cooling and heating capabilities. This makes them an excellent air conditioning installation option for Fullerton homeowners focused on energy efficiency. Rather than generating heat, these systems work by transferring it. Fullerton residents can maintain comfortable temperatures throughout the year while keeping energy consumption low.

Why Fullerton Chooses Haller for Air Conditioning Installation

Fullerton residents choose Haller for air conditioning installation because we pair decades of experience with genuine dedication to customer care.

For over four decades, families throughout Fullerton have relied on Haller for dependable air conditioning installation. We’ve backed our work with expert craftsmanship and trustworthy service since 1981.

Our NATE-certified technicians follow strict quality and safety standards on every air conditioning installation in Fullerton.

Haller installs industry-leading equipment backed by strong manufacturer warranties. We’re a BBB Accredited Business, reflecting our commitment to ethical service throughout Fullerton.

Haller offers financing to make air conditioning installation in Fullerton more manageable. Improved comfort and energy savings, without unnecessary financial stress.

When your AC breaks down during Fullerton’s humid summer nights or weekend heat waves near Jordan Creek, our emergency repair team in Fullerton responds around the clock to restore your comfort fast.

Our Home Comfort Club protects your air conditioning installation investment with ongoing maintenance throughout Fullerton and near Fullerton Fire Company.

Haller stands behind every air conditioning installation in Fullerton with a 100% satisfaction guarantee.

(609) 799-3434



Male Haller tech with tool bag entering residential home smiling.

Schedule Your Air Conditioning Installation in Fullerton

Don’t wait for the next heatwave to leave you sweating. Call Haller today to schedule your air conditioning installation in Fullerton and enjoy reliable, energy-efficient comfort all summer long.


Air Conditioning Installation FAQs

How do I know what size air conditioner my home needs in Fullerton?

Your home’s square footage, insulation quality, ductwork condition, and room layout all factor into determining the right AC size for your Fullerton property. An undersized unit will struggle during Pennsylvania’s humid summers. An oversized system cycles on and off too frequently, wasting energy and creating uneven temperatures. Our technicians conduct a thorough assessment of these variables during your consultation to match the system capacity to your home’s specific cooling requirements.

How long does air conditioning installation take in Fullerton?

A typical air conditioning installation in Fullerton takes about 6 to 8 hours for a straightforward replacement. Jobs that involve ductwork changes, electrical upgrades, or installing systems in homes without existing AC infrastructure can stretch into a second day. The timeline depends on your home’s specific setup and any modifications needed to accommodate the new equipment.

Do you offer financing for AC installation in Fullerton?

Yes, we provide financing options that make AC installation in Fullerton more affordable for homeowners. We also handle air conditioning installation in Jordan Creek and throughout Lehigh County. Our specialists explain each financing plan clearly, helping you find terms that work with your financial situation.

What’s the average lifespan of a new air conditioner in Fullerton?

A properly installed air conditioning system typically provides 10 to 15 years of reliable service in Fullerton when maintained regularly. Pennsylvania’s humid summers and temperature swings can affect system longevity, making annual maintenance particularly important for protecting your investment. Regular tune-ups, filter changes, and professional care help your AC reach its full lifespan while maintaining efficient operation throughout those years.

Is professional installation really that important in Fullerton?

Professional installation makes a huge difference in how your system performs and how long it lasts. A correctly installed AC runs more efficiently, keeps your manufacturer warranty valid, and avoids the problems that come from shortcuts or mistakes during setup. Here in Fullerton, where summer heat can push systems hard, proper refrigerant levels, electrical connections, and airflow adjustments during installation directly impact whether your unit delivers consistent cooling or struggles from day one.

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