Air Conditioning: Service, Maintenance, and Installation

Air conditioning service.

Royal American Heating & Cooling is your #1 HVAC contractor in Hinsdale, Oak Park, Elmhurst 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 Royal American Heating & Cooling 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.

Air Conditioner Repair

Don’t suffer through another day in a hot, stuffy home! Is your air conditioner acting up, freezing up, or making too much noise? Our experienced team of HVAC professionals is here to keep your home cool. We repair all makes and models, and we will never try to sell you a service you don’t need. Our technicians are honest and hard working, and we’re always transparent and fair about the work we do.

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.

To learn more about on-bill utility financing click here.

See our current rebates on a new replacement system.

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***

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

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Air Conditioner Maintenance

For air conditioners, an annual service tune-up and cleaning is recommended, usually performed in the spring. Our professional technician will check and clean the connections, coils, blower components, lines, refrigerant, drain, fuses, and thermostat(s), as well as lubricate all working parts. Maintenance you can do yourself between service visits is to remove any yard debris or vegetation from the top and sides of your outdoor air conditioner unit, as well as to keep it covered with an air conditioner cover or tarp in the winter.

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 Royal American Heating & Cooling, we provide all the services you need to keep your AC running in top-notch shape. Call us at 708-928-8372 for repairs, maintenance, or new-system installation.

Carrier Infinity 26 Air Conditioner (Greenspeed)

Need Air Conditioning Service?

Contact the experts at Royal American Heating & Cooling.

Call us at 708-928-8372!

Air Conditioner Maintenance in Oak Park, IL 60301

“Great experience, our tech was very thorough and explained exactly what he did!”
- Ken P.

Air Conditioner Maintenance in Oak Park, IL 60302

“From the original installation of our H Vac systems 2 years ago and all of our maintenance programs Royal American has always been professional and thorough in dealing with us Highly recommended”

- Kurt H.

Air Conditioner Maintenance in Oak Park, IL 60302

“Good job as usual.”

- Bob W.

Air Conditioner Installation in Hinsdale, IL 60521

“The Best! I have been using Royal American for years, and it is my go-to HVAC Company for referrals. Top service, great customer service, quality equipment, and fair prices.”

- Nicholas G.

Air Conditioner Maintenance in Oak Park, IL 60301

“Royal American has always taken great care of my house and air conditioning! Anytime I’ve needed them they have called back immediately and always sent someone out the same day! I strongly recommend this service and I have sent many referrals to my neighbors!”

- Larry S.

Air Conditioner Maintenance in Oak Park, IL 60301

“Royal American is great! Trust wothy, communicative, eager to help!”

- Mack G.

Air Conditioner Maintenance in Oak Park, IL 60301

“Always available here”

- Barry I.

Air Conditioner Maintenance in Oak Park, IL 60301

“Royal American is the only company I trust to provide regular maintenance for my furnace and AC units. Their technicians are always professional and knowledgeable. Best HVAC company in Illinois!”

- Mike C.

Air Conditioner Installation in Western Springs, IL 60175

“Excellent service & installation of a new HVAC system. Chris answered all my questions, explained the system, benefits and various options for 4 different units. We selected one option & he scheduled the installation in a week. We were called the day before the installation about the arrival time. The crew arrived on time and finished in one day. An in-depth explanation was provided about the new control panel in our living room. So different and so much better than the old panel; very high tech. Highly recommend Royal American.”

- Thomas A.

Air Conditioner Installation in Oak Brook, IL 60521

“🏆Always professional, caring, and prioritizing our needs, which is greatly appreciated. Excellent workmanship on all HVAC installs and maintenance; we have had many at the Shopping Malls we manage and are always very satisfied with Royal American Heating & Cooling—our go-to company that always cares about meeting our needs promptly.

Eldorrado Chicago Real Estate”

- Alexis E.