(610) 432-8070Family-owned in Allentown since 1988

HVAC Services in Bethlehem, PA

ICS Heating & Air Conditioning repairs, maintains and installs heating and cooling systems in Bethlehem, PA.

Heating and cooling services in Bethlehem

ICS technicians come to homes and businesses throughout Bethlehem, on both the Lehigh County and Northampton County sides of the city. We repair, maintain and install:

To book a visit, call the office at (610) 432-8070, Monday to Friday from 9 AM to 4 PM, or send a request online. ICS offers same-day service, and existing customers can reach our answering service 24/7 for emergency repairs.

Heating and cooling older Bethlehem homes

Many of Bethlehem's older homes and twins heat with a gas boiler and radiators and have no ductwork for central air. ICS repairs, maintains and replaces gas boilers.

To add air conditioning without ductwork, a ductless mini-split puts a small indoor unit in each room you want to cool, and it heats too. See boilers and ductless mini-splits.

Amy Morgan2 reviewsG
★★★★★November 2025

“ICS has been my go to for anything HVAC for 20 years.”

Steve ZolaLocal Guide · 67 reviews · 34 photosG
★★★★★May 2026

“Outstanding local HVAC company! Very responsive and genuine. The technicians are very skilled at what they do.”

LKLocal Guide · 76 reviews · 47 photosG
★★★★★July 2026

“They sent a couple techs out this morning. They identified and fixed the problem and saved us from a sweltering day and gave us relief from the terrible heat!”

Jennifer Roscher3 reviewsG
★★★★★November 2025

“Prices are reasonable and they won’t try to “upsell” you on anything you don’t need, which is always appreciated.”

Jodi Eslinger1 reviewG
★★★★★November 2025

“Their pricing is very reasonable and their technicians are very professional and courteous.”

Joshua Edelman22 reviews · 25 photosG
★★★★★April 2026

“Instead of upselling me on a brand new air conditioner like the other heating and cooling companies tried to do, he performed an honest capacitor replacement and had my AC running like new within an hour of diagnosis.”

Lauren Coker8 reviews · 5 photosG
★★★★★November 2025

“Their pricing is fair, and I always feel confident that they’re giving me honest recommendations and taking the best care of my home.”

Michael Schrey4 reviewsG
★★★★★November 2025

“The price was very reasonable and the workers professionalism and friendliness was spectacular.”

Keith BendelLocal Guide · 11 reviewsG
★★★★★November 2025

“Installed my boiler and made sure everything works well. Dave came to service my system and was quick and knowledgeable.”

Matthew Rohrbach1 reviewG
★★★★★November 2025

“Had my water heater replaced by ICS. Great customer service, communication, and absolute professional work all around.”

Michael Harden12 reviewsG
★★★★★November 2025

“The entire team was knowledgeable, thorough in their explanations, and maintained a clean workspace throughout the project. They also removed the oil tank efficiently and without any odor.”

Cindy Polzer11 reviewsG
★★★★★March 2025

“They provided excellent service from start to finish: sales, installation, training us on the new smart thermostat and the office support staff. They even completed the rebate forms for me.”

Frequently asked questions

Does ICS serve all of Bethlehem?
Yes. We serve the whole city, on both the Lehigh County and Northampton County sides, and the surrounding towns in both counties.
Can you add air conditioning to a Bethlehem home with radiators?
Yes. Ductless mini-splits add cooling, and efficient heat, without any ductwork. See ductless mini-splits.
What brands do you install?
Bryant furnaces, air conditioners and heat pumps; Bryant and Mitsubishi ductless systems; New Yorker and Bradford White boilers; and Bradford White and A.O. Smith water heaters.
Is financing available?
Yes, on new equipment and repairs, subject to credit approval. See financing.

Request service

What do you need?

No heat or no cooling right now? Call (610) 432-8070.

Schedule service in Bethlehem

Call the office at (610) 432-8070 or send a request online.

1732 W Fairmont StAllentown, PA 18104
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Office hoursMonday to Friday: 9 AM to 4 PMSaturday and Sunday: Closed
EmergenciesExisting customers can reach our answering service 24/7 for emergency repairs.

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