Bethlehem’s Local Air Conditioning Experts

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

Whether you’re in South Bethlehem or anywhere across Bethlehem, your safety is our top priority on every air conditioning installation, and we follow strict standards to ensure your new system operates reliably from day one.

We’re also easy to schedule with and offer a 100% satisfaction guarantee on all air conditioning installations. For dependable comfort all summer long in Bethlehem, count on Haller.

(717) 204-8120

4.7
Based on 9382 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

Scheduling your air conditioning installation with Haller is simple, clear, and designed around your convenience. From your first call to final system testing, our team makes the process smooth so you can enjoy reliable comfort in your Bethlehem home as quickly as possible.

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 Bethlehem.

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

Our experienced technicians handle every detail. We test your new system, ensure everything is operating properly, and answer your questions before we leave your Bethlehem home.

(717) 204-8120


What Our Customers Are Saying

Learn More About Our 100% Satisfaction Guarantee

4.7
Based on 2666 reviews
Danial S. was upfront and honest about what to expect, he was professional and kind through the whole experience. If in the future I should need to call for services, I will be asking that he is my tech. To Danial: Thank you for what you do, never change, you are a rock star!
Pam Metzger
3 days ago
Nevin is very knowledgeable with his skills and he does his job with pride
Jean Gibb
4 days 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.
Eric Harzer
4 days ago
Did a good job of checking out our furnace and making sure it was ready for the cold weather season.
David Williams
4 days ago
Good structured report. On time, no issues.
Carol Smith
4 days ago
Christopher M did a great job on the geo thermal that I have! I am very pleased.
Always a good experience with Jason. Efficient and knowledgeable.
Wesley Wang
5 days ago
Super thorough and trustworthy! Would definitely recommend.
Pam Beckwith
5 days ago
I don’t know anything about the heating system, so who knows? The technician was professional, knowledgeable and very helpful.
Denise Esterly
6 days ago
Haller Enterprises replaced our combination heater/ water heater system. There were a few small issues, but they made certain everything was in great working order before closing the job. We couldn’t be happier with the service we received!
Jo A
6 days ago
He was awesome, request him for next year. He explained everything in ways that I understand in what he was saying.
Sandi
6 days ago
We needed a new furnace & air conditioner system after 15 years with the old one. Never a fun proposition, but necessary. We've had a service contract with Haller for 20+ years & they have always been responsive, professional, reliable & efficient. We appreciate the great service Haller!
John Egiziano
7 days ago
Nevin did a great job diagnosing our issue
Mildred Cepeda
1 week ago
On a Saturday night my water heater was leaking. Sunday morning by 1015am HALLER was at my home fixing/ repairing the issue. Was done under 30min. He answered all my questions also. Great customer service from all. They have a great team! Appreciated all the technicians and the behind the scene agents on the phone.
Kayleen Laird
1 week ago
Christian came out super quick to get our AC running again. He was in and out in about 15 minutes to change our capacitor. Thanks a ton for keeping us cool!
paul ocampo
1 week ago
Moises was prompt and professional and got the job done. Everything from booking to completion of the job was smooth.
Elisa Trillo
1 week ago
They were on time and were through and professional . Was very pleasant.
wade mackey
1 week ago
Great work and attention to detail.
Jo-Lyn Hricik
2 weeks ago
Shawn was my tech today do my yearly maintenance to me A/C unit. He did an amazing job!
Russ Hughes
2 weeks ago
The service techs where friendly and knowledgeable Thanks Russ
Lisa Carter
2 weeks 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 don’t know exactly how long it will take but I’m sure it’s much faster. I’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.
Gregory Konat
2 weeks ago
The technician, John Wentz was very efficient, knowledgeable and professional. Highly recommend.
John Wallach
2 weeks 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
2 weeks ago
Great attitude, worked safe, great communication Efficient and thorough

(717) 204-8120

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

If your air conditioner is struggling to keep up, it may be time to consider a replacement.

An aging or inefficient AC system in Bethlehem can lead to higher energy bills, uneven cooling, and frequent breakdowns. These are the situations where air conditioning installation in Bethlehem is often the right move. Knowing the warning signs can help you avoid unexpected failures and plan for a more reliable, energy-efficient upgrade.

If you’re calling for repairs every summer, those costs can quickly add up. Replacing your system may be more cost-effective than continuing to invest in an older unit that’s nearing the end of its lifespan.

A sudden or steady increase in cooling costs in your Bethlehem home often signals declining efficiency. New air conditioning systems are designed to use less energy while delivering more consistent comfort.

Hot and cold spots throughout your Bethlehem home may mean your system can no longer distribute air properly. A properly sized and professionally installed replacement can restore balanced, even cooling.

Most air conditioners in Bethlehem near Bethlehem Township and throughout the Lehigh Valley last around 10 to 15 years with regular maintenance. If your unit is in this age range and showing signs of wear, upgrading now can improve reliability and give you greater confidence.

Types of Air Conditioning Systems We Install

Haller installs a full range of high-performance air conditioning systems to meet the unique needs of your Bethlehem home.

Our team will help you choose the right solution based on your home’s layout, energy goals, and budget to ensure long-lasting comfort and efficiency.

Central air conditioning systems in Bethlehem are ideal for homes with existing ductwork, providing consistent whole-home cooling. Today’s high-efficiency models offer improved energy savings, quieter operation, and reliable performance even during peak summer heat.

Ductless mini-split systems are a flexible air conditioning installation option for Bethlehem homes without ductwork or for targeted room cooling. They allow for zoned comfort control, improved efficiency, and easy installation with minimal disruption.

Heat pumps provide both cooling and heating, making them a versatile air conditioning installation choice for Bethlehem homeowners looking to reduce energy use. These systems transfer heat rather than generate it, helping Bethlehem homeowners reduce energy use while maintaining year-round comfort.

Why Bethlehem Chooses Haller for Air Conditioning Installation

Locals pick Haller for air conditioning installation because we combine decades of experience with a true commitment to customer care.

Since 1981, Haller has been helping families throughout Bethlehem stay comfortable with reliable air conditioning installation, expert workmanship, and service you can trust.

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

Haller installs industry-leading equipment backed by strong manufacturer warranties and is a BBB Accredited Business, reflecting our commitment to ethical service throughout Bethlehem.

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

If your cooling system fails unexpectedly in Bethlehem near West Bethlehem or North Bethlehem, our team is available 24/7 to respond quickly.

Our Home Comfort Club provides ongoing maintenance near Monocacy Park and throughout Bethlehem to protect your air conditioning installation investment.

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

(609) 799-3434



Male Haller tech with tool bag entering residential home smiling.

Schedule Your Air Conditioning Installation in Bethlehem

Ready to upgrade your comfort? Haller is here to make the process simple and stress-free.

Don’t wait until the next heatwave to take action. Contact Haller today to schedule air conditioning installation in Bethlehem, Pennsylvania, 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 Bethlehem?

Proper sizing depends on your home’s square footage, insulation levels, ductwork, and layout. Haller performs a detailed in-home evaluation to ensure your new system is correctly sized for efficient, consistent cooling.

How long does air conditioning installation take in Bethlehem?

Most standard air conditioning installations in Bethlehem can be completed in a single day. More complex projects, such as ductwork modifications or system upgrades, may take longer, but we’ll provide a clear timeline before work begins.

Do you offer financing for AC installation in Bethlehem?

Yes, Haller offers flexible financing to help make air conditioning installation in Bethlehem more manageable. Haller also serves East Bethlehem and Saucon Valley. Our team will walk you through available plans so you can choose the option that fits your budget.

What is the average lifespan of a new air conditioner in Bethlehem?

With professional air conditioning installation in Bethlehem and routine maintenance, most systems last 10 to 15 years. Joining Haller’s Home Comfort Club can help extend the life of your system and maintain peak efficiency.

Is professional installation really that important in Bethlehem?

Absolutely. Proper installation ensures your system runs efficiently, maintains manufacturer warranties, and delivers reliable cooling for years to come. Our NATE-certified technicians follow strict standards to ensure your AC is installed correctly the first time.

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