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In Business For Over 80 Years

Honest, Reliable, Family Owned


We Install and Repair

  • Furnaces

  • Air Conditioning

  • Hot Water Heaters

  • Boilers

  • In-floor Heat Systems

  • Mini-Splits

  • Wi-fi (Smart) Thermostats

  • Whole-house Humidifiers

  • Heat & Energy Recovery Ventilators

  • Filtration Systems

  • UV Sterilization Systems

  • Garage Heaters

We work with most any brand of equipment but specialize in sales, service, and repair for Lennox brand climate control products.


We believe that the key to a healthy, comfortable home starts with the air with which we live and breathe. Our dedication to the pursuit of perfect air has been a driving force behind each and every innovation since 1895. We make the air cooler, warmer, dryer, cleaner and better with premium, award-winning systems that are exceptionally quiet and energy efficient.


Frequently Asked Questions

My AC is not working correctly, what should I do?

Turn it off. You could be low on refrigerant and that would cause your coil to freeze. Once that thaws it will create water on your furnace, and that will rust your furnace. Do not run your AC while it is not working.  If the coil is frozen the service tech will not be able to work on your AC. 

My furnace is very noisy. What could be the cause?

The combustion air inducer (CAI) will grow noisier with age and wear. A noisy furnace could indicate that the CAI will soon stop working.

How often should my furnace and air conditioner get serviced?

They should be serviced once a year. 

When do spring air conditioner checks start?

The weather needs to be 60F or warmer to get proper measurements on the refrigerant pressures.

There is a lot of water by my furnace. What is wrong?

Excessive water by the furnace is often caused by an old humidifier pad that needs to be replaced.

My equipment doesn't work and it's a weekend! Can you help?

If it’s an emergency we’ll make every effort to come, but there will be an extra service charge.

Do you clean duct work? If not, who does?

We do not clean ducts however, we recommend Americlean, and if you mention Graber Heating when requesting duct cleaning services, you will receive a discount. Cedar Rapids: 319-362-0604

About Graber Heating & Air

Graber Heating and Air Conditioning, Inc. is a family-owned and operated business that recently celebrated 80 years serving Iowa City and surrounding areas. It was founded in 1938 by Dan Graber and passed on to his son, Lynn Graber. The company is now owned and operated by the 3rd generation, Barry Graber, and two of his sons (4th generation) Shawn and Shane.

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Request a Quote: Call
(319) 683-2448
Or Submit a Request Below

*For weekend emergencies we’ll make every effort to come, but there will be an extra service charge.

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Client Testimonials

We believe each client is a long term partnership.

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Water Heaters

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