Gas Furnaces: Service, Maintenance, and Installation

Furnace service.

Royal American Heating & Cooling is the leading HVAC company in Hinsdale, Oak Park, Elmhurst and the surrounding communities, for your furnace service needs. We service and repair all makes and models. If you need furnace service, we are the company to call. Our skilled technicians are qualified to solve just about any repair or installation that you throw at us.

Furnace Repair

Don’t get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of professionals is here to keep your home warm and cozy. We repair all makes and models, and we will never try to sell you a service that 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 Furnace Save You?

Our AFUE energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit's AFUE value and compare it to a newer, more efficient system. 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.

AFUE Energy Savings Calculator

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Customize to Your Home

Adjust these settings for a more accurate calculation:




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Historical Comparison

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** Data from U.S. Energy Information Administration
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Furnace Replacement

Sometimes a repair is not sufficient to fix your furnace. Sometimes a new furnace is the most cost-effective and energy-efficient way to go. We will always be honest with you about a possible furnace replacement. We value our time and your money––we don’t want to perform repairs or service on an appliance that is in need of replacement.

If you do need a furnace replacement, we know how overwhelming it can be. Here are some of the frequently asked questions about furnaces that we get from some of our Hinsdale, Oak Park, Elmhurst and the surrounding community residents:

What Are The Different Types Of Furnaces?

Single Stage: A single-stage furnace has only one stage of operation. It can either be turned on or turned off.

Two Stage: A two-stage furnace has two settings––full and half speed. This is a more efficient way to heat and provides for better comfort, because it can move the air at a slower pace.

Variable Stage or Modulating: A variable-stage or modulating furnace modulates the speed and heat output based on the temperature outside and the desired comfort level. This furnace only works as much as you need it, making this type the most energy-efficient type of furnace.

Furnace Maintenance

We highly recommend an annual service tune-up and cleaning for your furnace. Typically the optimum time of year to perform the maintenance is the fall, before you fire up your furnace for the cold weather. The purpose of the service tune-up is to keep your system running at top efficiency throughout the season, so you have heat whenever you need it. Our experienced technician will clean and check all the connections, controls, sensors, drains, motors, ducts, valves, and blowers, as well as your ignition assembly, thermostat(s), and smoke and carbon-monoxide detectors. Following your tune-up, our technician will instruct you on anything you could do yourself as maintenance between our service visits. One absolute action you can take is to change your furnace filter with the correct replacement every three months, or as needed. This goes a long way in extending the life of your furnace, as well as keeping your furnace repairs to a minimum and your indoor air quality high.

What Is AFUE?

AFUE, or Annualized Fuel Utilization Efficiency, is a measure of furnace-heating efficiency. The higher the AFUE, the more efficient the furnace.

What Size Furnace Do I Need?

We can calculate the correct size furnace for your home. The number of BTUs, or British Thermal Units, needed to heat your home is dependent on a number of variables. Contrary to what you might think, a bigger furnace may not necessarily mean more heating power for your home. Call us at Royal American Heating & Cooling, and we can set up an appointment to calculate the furnace size you might need.

Carrier Infinity 24 Heat Pump (Greenspeed)

Gas Furnace Replacement in Melrose Park, IL 60187

“The Royal team was outstanding! They were quick to get back to me, came the next day, and had my new furnace up and running less than 48 hours from my first call. I’ve trusted Chris and the team for all my furnace needs for years, and they’ve been outstanding! I highly recommend, and will personally, be using the Royal for all of our HVAC needs.”
- Brad E.

Gas Furnace Repair in Oak Park, IL 60124

“Marco called when he was 20 minutes away. He was friendly, professional and efficient. In a very short time he fixed my furnace and let me know exactly what the problem was. I would recommend Royal American Heating and Cooling.”

- Kathleen C.

Gas Furnace Maintenance in Melrose Park, IL 60134

“Another great experience with Royal American. Marcos was very professional and courteous during our appointment and even before. He made sure to call an hour ahead of arriving. I highly recommend Royal American for commercial and residential service. I’m a customer for life.”

- Mike C.

Gas Furnace Maintenance in Willowbrook, IL 60532

“Company is of the highest caliber. They provide the highest level of service, stand behind their products and are always there for their customers. Technicians are very professional, friendly and extremely knowledgeable.”

- John K.

Gas Furnace Repair in Elmhurst, IL 60188

“I woke up on the coldest day of the year to a 60 degree house. Cold air was coming out of the vents. I called Chris and he promptly returned my call for service. Unfortunately, our neighborhood lost power for over 2 hours. As soon as the electric came back on I phoned Chris and he came out. He immediately went to work. He found the problem and was able to start the furnace up but it did need a replacement part. He ordered and picked it up and came back and replaced it. He made some adjustments to venting of house. The furnace has been working more efficient with heating the house than before. Chris was very efficient and very courteous explaining exactly what happened and what he was doing to repair it. They also have an inexpensive maintenance program that I signed up for for future visits. I would highly recommend Royal American for your heating and cooling needs. I would give them 10 stars if I could. It was wonderful dealing with a company that I could trust and will use them for all of my future heating and cooling needs. My neighbor, who recommended Royal American, also had his furnace and air conditioning replaced and experienced the same excellent workmanship from them. Thank you.”

- Janine S.

Gas Furnace Repair in Oak Brook, IL 60190

“Royal HVAC is our go-to repair service for our HVAC units. They saved us during the Polar Vortex and were able to repair all of our systems in a timely and efficient manner.”

- Kimberly K.

Furnace Repair

I am very happy with the service I got for my furnace problem. Royal American sent a service tech out on the same day I called, Jim the technician checked out the furnace thoroughly and diagnosed the problem. A new air duct was added to the furnace a few days later. I am very happy with this company.

– Alice T.

Need Furnaces Service?

Contact the experts at Royal American Heating & Cooling.

Call us at 708-928-8372!