Air conditioning service.

Air Conditioning

Griffin Heating & Air Conditioning is your #1 HVAC contractor in Cornelius, NC, and the surrounding communities. We are the leading company for all of your air conditioning needs. If you need repairs, maintenance, or a brand new system installed, the technicians at Griffin Heating & Air Conditioning are the qualified and professional crew for the job.

We provide the highest quality service for your air conditioner. We also aim to educate and inform our customers. Informed decisions are good decisions. We want you to feel confident we are qualified to perform the service for which you are hiring us.

How Much Money Can a New Air Conditioner Save You?

Our SEER2 (Seasonal Energy Efficiency Ratio 2) energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit’s SEER value and compare it to a newer, more efficient SEER2 unit. You can even customize it to better match your home’s system for a more accurate calculation.

SEER2 Energy Savings Calculator

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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:




Rate (¢/kWH)


Average Annual Cooling Hours***

Historical Comparison

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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

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Air Conditioning Basics

The four main components to your air conditioner are:

Condenser: The condenser is the outside metal unit and where the gas from the compressor is condensed into a liquid. The gas entering the condenser is very hot. The temperature is then lowered, so the gas can convert back to a liquid.

Compressor: The compressor is inside the condenser. It circulates the pressurized refrigerant, to concentrate the heat, and changes the low pressure gas to high pressure.

Evaporator: The evaporator is the part of the system inside the home. In simple language, it absorbs the heat from your home.

Expansion Valve: The expansion valve controls the amount of refrigerant in your system.

All of these pieces are connected by a copper tube that handles refrigerant, creating a closed loop. Heat is collected in the evaporator, sent outside to the condenser. The heat is removed, and the cool air is recirculated back into your home.

AC Facts

An Air Conditioner Doesn’t Create Cool Air.
What happens in the AC process is actually the removal of heat from the air. Your AC uses a chemical called refrigerant to remove heat and transfer it outside. The warm air runs through the lines and coils in your unit and goes from liquid to gas and back again. During this process, the refrigerant removes the heat and transfers it elsewhere so that when the air comes out the other side, it is cool.

Your AC Will Remove Humidity.
Lower humidity helps the overall comfort level in your home by making you feel cooler, even if the temperature is the same.

Your Air Filter Needs To Be Checked And Replaced Every Three To Six Months.
(depending on the manufacturer’s recommendations)
A dirty air filter restricts your air flow, which reduces efficiency, costing you money, and over time can put stress on your unit and could cause a costly repair.

Maintenance, Maintenance, Maintenance.
Your air conditioner needs regular checkups to keep it running in tip-top shape. Having regular annual preventative maintenance will bring your system longer life and fewer breakdowns over all.

The Seasonal Energy Efficiency Ratio (SEER) measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER rating means greater energy efficiency.

At Griffin Heating & Air Conditioning, we provide all the services you need to keep your AC running in top-notch shape. Call us at 704-873-1749 for repairs, maintenance, or new-system installation.

Air Conditioner Repair in Huntersville, NC, ST 28078

“Andy has consistently provided great service for the commercial HVAC units at our business. Along with being polite and on time for appointments, he is extremely thorough in his work. Recently we had an AC issue on a very hot day. Andy went out of his way in the very early morning to make sure we had AC so we could stay in business. He is certainly an asset to Griffin Heating and Air. Give that guy a raise as he has certainly earned it! Thank you!”
- Lisa K.

Air Conditioner Maintenance in Statesville, NC 28625

“Extremely happy with G H/A. Been using them for years in Statesville to maintain 3 units in my home. If there is a need or big issue I just call in and it gets done. Patricia gets a sched set quick and I dont have to worry about it. Have had several diff service personnel come and all of them have been very knowledgeable and make sure my system is up and running. They also dont try and get me to buy things or pay for stuff I dont need. Thats big to me cause other companies can come in and tell u how much more expense u have to add to get your air or heat workin. This crew doesnt do that and thats why I have stayed with them for years.”

- Aaron B.

Air Conditioner Maintenance in Statesville, NC 28625

“Tim Pennel sold me the AC and furnace unit last year. All the guys that installed it were professional, friendly, super efficient! Adrian serviced the unit today. All staff here is soooo polite, professional, timely, just so nice to deal with! Highly recommend every staff there! Office staff are on top of everything as well, it is so rare to find this nowadays!”

- Amy H.

Air Conditioner Maintenance in Mocksville, NC 27028

“We had a new system put in last year and were just due for a maintenance check. Dante came out today to service our system. What a great guy! He was thorough, friendly, helpful, and professional. I appreciate the way he explained everything he did and the tips he gave for keeping our unit in good shape. I'd highly recommend Griffin Heating & Air.”

- Nicole M.

Air Conditioner Replacement in Statesville, NC 28625

“Dante changed a cord that was broken in our house air conditioning unit very quick and efficient. He was very respectful while doing his job as well as being good company around our family.”

- Barry H.

Air Conditioner Repair in Statesville, NC 28625

“Mr. Mack was patient and understanding. He listened to our description of the problem and his due diligence led him to the source of the issue, with our AC unit. Mr. Mack was respectful and very knowledgeable about the units. I appreciate his hard work today and dedication, to serving his customers with such a positive attitude.”

- T. M.

Air Conditioner Repair in Statesville, NC 28625

“Great company!!”

- Diana R.

Air Conditioner Maintenance in Statesville, NC 28625

“I thought the unit needed some sort of maintenance because the temp in the house was above normal in the afternoon so i call Griffin because they installed the unit. Dante showed up and went right to work after he introduced himself. After he did a thorough check on the unit he checked the inside. From my point of view he was very professional and courteous .He gave me the results which was there were no problems with the unit.Best experience I've had with a service man. Thanx Dante.”

- Rodney c.

Air Conditioner Repair in Statesville, NC 28677

“I am a property manager for a group home in Statesville. The air stopped working in the group home in the late evening of Sat., May 12th. I called Griffin and requested emergency services as there are several individuals at the group home that are oxygen dependent at night and the heat is a negative health factor. DANTE came to the rescue!! He had already been working several other calls that day but stated that he would try his best to help. Dante did just that. He was knowledgeable, professional, respectful and helpful. Thanks again Dante, you sure know what a solid work ethic is and you present as a strong asset to your company!”

- Hope C.

Air Conditioner Repair in Statesville, NC 28625

“Sunday morningwith temps going into the 90s my ac was blowing at 80 degrees Dante showed up and was one of the most professional and knowledgeable techs i have ever met ! He first thought we had a blockage in the system but after serching deeper he traced it back to a broken wire in the thermostat, after fixing the wire the icing up started melting immediately and started blowing cold. His honesty and understanding of the system is not something you see now days. I highly recomend your company to everyone . Thanks Dante well done!”

- Michael M.

Need Air Conditioner Service?

Contact the experts at Griffin Heating & Air Conditioning.

Call us at 704-873-1749!