HVAC Repair & Installation Services


Our HVAC contractors are qualified to perform furnace and air conditioning service, repair, and installation in areas such as Downers Grove, Naperville, Oak Brook, Plainfield, Woodridge, AuroraWheaton, and Lisle, Illinois. If you're having problems with your central air conditioner or furnace, give our team of certified technicians a call by phone at (630) 968-0783 to receive assistance.

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Air Conditioning & HVAC Repair Services

Do you have issues with your air conditioning system or furnace? We’ve got some techniques to help you figure out what’s wrong and fix these typical issues yourself. However, for the bigger HVAC repair problems, it’s best to call the HVAC service professionals at Stephen’s Plumbing. Our trained, licensed, and professional HVAC contractors are experienced with all types of furnaces, boilers, and air conditioning units.

The HVAC contractors at Stephens Plumbing offer furnace and air conditioning repair services in areas such as Downers Grove, Aurora, Plainfield, Elmhurst, Bolingbrook, Clarendon Hills, Darien, Oak Brook, and Burr Ridge, Illinois. We offer HVAC services for homes and commercial spaces such as warehouses, offices, and facilities. The HVAC technicians at Stephens Plumbing also offer solutions such as plumbing repair, drain cleaning, water line repair or install, and water heater repair, and backflow testing. Call a professional HVAC contractor at Stephens Plumbing by phone at (630) 968-0783 or submit a service request online.

Schedule a Furnace or Air Conditioning Repair Appointment

Call Us: (630) 968-0783

Are you having problems with your furnace or air conditioner? Schedule an appointment with our team to receive assistance.


Signs of Issues With Air Conditioning Systems

Minimal Amount of Cold Air

A clear sign of an issue with air conditioning units is a lack of cold air production. Apart from the warmer temperature in your home, you may also notice a spike in your utility bills. But before you book an HVAC repair or installation appointment, you may want to have a look at your filters first. Dirty filters block air flow, preventing cold air from circulating throughout your home or commercial area.

Unfamiliar with how to clean or change an air conditioning filter? The HVAC contractors at Stephen’s Plumbing can show you how to open the air duct to remove a dirty filter. You may either clean it or install a new filter. Our air conditioning and furnace repair technicians offer reliable and efficient repair services in Downers Grove, Lombard, Lisle Bolingbrook, and other areas in Illinois.

Fortunately, if you need to replace the air conditioning unit, it only takes about 4-8 hours for a professional HVAC contractor to perform an air conditioning installation project. The average lifespan of new units is 15 to 20 years. Contact a specialist at Stephens Plumbing to book an air conditioning replacement appointment.

Loud Noises

If your air conditioning unit is making loud noises, it could mean some of its parts are loose, or you may have a faulty fan motor. If the air conditioning motor inside the compressor has broken, it can make loud screeching noises. And if your air conditioning unit is buzzing or humming, it could be electrical problems. Regardless of what kind of sound your air conditioning system is making, it’s best you turn it off to avoid further damage. The HVAC contractors at Stephens Plumbing are able to perform repairs on the motor or electrical components of residential and commercial air conditioners. We offer affordable HVAC repair and installation services in Downers Grove and other locations of Illinois. Call us by phone at (630) 968-0783 or book an appointment online.

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Foul Odors Are a Sign of an Obstruction in the Air Ducts of the HVAC Unit

Have you noticed an odd, musty smell in the air of your home? There’s a good chance there’s an obstruction in the air ducts of your HVAC system. Catch it early, and this will be a relatively easy fix. Stephens Plumbing offers HVAC services to keep your air ducts clear of objects and other materials. Contact a specialist to receive assistance with your HVAC system.

However, if the odor is more like rotten eggs, this indicates a much more severe HVAC problem. The smell of rotten eggs or sulfur can mean a possible gas leak which could cause something catastrophic like a fire or explosion in your home, office space, or commercial facility. Call the HVAC contractors from Stephen’s Plumbing immediately.

Furnace Repair Services in Downers Grove, IL

Furnace Repair & Installation Services

We offer trustworthy HVAC and furnace repair or installation services to households in Downers Grove and other areas of Illinois. Our team of licensed technicians has the tools and skills necessary to fix dirty gas burners, malfunctioning hot surface ignition systems, and damaged blower belts. We offer HVAC services in areas of Illinois such as Elmhurst, Wheaton, Bolingbrook, Downers Grove, and Aurora. Give our team a call by phone at (630) 968-0783 to receive assistance with an inefficient or broken furnace.

4 Causes of Furnace Short Cycling Problems

Clogged Exhaust Vents

The exhaust vents in a gas furnace are engineered to remove poisonous carbon monoxide gas. Dangerous gases are removed from the household through an exhaust flue that is connected to the roof or an exterior wall. If the gas flue becomes blocked, a large amount of carbon monoxide will start to collect in the furnace and leak into your house. On the other hand, a clogged exhaust vent can cause your furnace to overheat and short cycle. If your furnace is performing heating cycles of 5 minutes or less, it’s important to perform an inspection of the exhaust pipe to confirm if it’s blocked. The most common causes of blockages in exhaust vents include birds, spiders, ice, bugs, and animals.

Broken Flame Sensor

Gas furnaces are equipped with a flame sensor that is designed to monitor the gas valve and flames. If the flame sensor detects a flame and heat, it will keep the gas valve open to ignite the natural gas. On the other hand, the sensor will deactivate the gas valve if it does not detect a flame. Once a flame sensor in a furnace breaks, the furnace may start to overheat and leak gas. If your furnace is turning on and off every 10 minutes, this is a sign of a broken flame sensor. To receive assistance with a short cycling issue, give our team of technicians a call by phone at (630) 968-0783. We offer dependable HVAC repair services in areas of Ilinois such as Aurora, Downers Grove, Bolingbrook, and Plainfield.

Schedule a Furnace Repair or Installation Appointment

Call Us: (630) 968-0783

If your furnace activating and deactivating every 5 minutes? Schedule a furnace repair, installation, or replacement appointment with our team of licensed technicians to receive help.


Closed Vent

Closed Vents

If your furnace is deactivating every 3 to 5 minutes, this is an indicator of a furnace that is overheating. Once a furnace is activated by the thermostat, it distributes warm air in the household through air ducts. The warm air exits the air ducts through supply vents in each room of your house. If there are a large number of vents closed, a large amount of warm air will get stuck in the furnace. If the blower motor is not able to circulate the excess heat, the furnace will overheat and shut down. An easy way to prevent your furnace from getting too hot is to open each of the vents in every room of your house.

Contaminated Air Filter

The cold air in your household enters the furnace through the air filter. Once the air filter becomes clogged with dirt and dust, the incoming air will be unable to reach the gas burners in your furnace. As a result, the furnace will become too hot while it’s operating. To prevent damage to parts, the high-limit switch will turn the furnace off. If your furnace is turning on and off every 5 minutes, this is a signal of a dirty air filter. Replace your air filter to restore the flow of warm air in your house. If a new air filter does not restore the flow of heat, give our staff a call by phone at (630) 968-0783 to receive support. We offer HVAC repair and installation services in areas of Illinois such as Wheaton, Elmhurst, and Downers Grove.

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Advantages of a Gas Furnace

Minimal Noise

Unlike oil furnaces, a gas furnace produces minimal noises during an average heating cycle. Purchasing a gas furnace is an excellent way to eliminate the amount of noise in your household throughout the day or night.

Low Operating Cost

The average cost of natural gas is significantly lower than electricity in most areas of the country. To save money on your monthly utility bills, install a gas furnace in your utility room or basement.

Increase the Value of Your Home

Adding a gas furnace to your house is an easy way to increase the value of your property. A large number of buyers in the real estate market will not purchase a house that does not have a gas furnace.

Schedule a Furnace Replacement or Repair Appointment

Call Us: (630) 968-0783

Is your furnace producing noises? Book a furnace replacement or repair appointment with our team of certified technicians to receive help with a furnace problem.


Advantages of An Electric Furnace


An electric furnace does not utilize natural gas or oil to produce warm air for your household. Since this type of furnace does not rely on natural gas, it is not able to create dangerous carbon monoxide. A large number of homeowners decide to invest in an electric furnace to eliminate gas leaks. In addition, an electric furnace is safer to operate when compared to a gas furnace because it does not produce flames.

Life Cycle

While the price of gas is significantly lower than electricity, many people decide to install an electric furnace because of its long life cycle. An average electric furnace features a life cycle of 20 years or higher. On the other hand, the lifespan of a gas furnace will range from 10 to 15 years. The life cycle of an electric furnace is higher when compared to a gas furnace because it is equipped with less parts and components. If your furnace won’t turn on, give our team of certified contractors a call at (630) 968-0783. We offer HVAC services in locations such as Bolingbrook, Plainfield, Aurora, and Downers Grove.

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Furnace Repair

Availability of Energy

There are many cities and suburbs across the country that do not have access to oil or natural gas. On the flip side, a majority of households have access to electricity. If you do not have access to natural gas in your area, you will be required to purchase an electric furnace to keep your house warm in the winter season.


The total cost of installing a gas furnace will vary from $3,000 to $10,000 or more. On the other hand, the price of installing an electric furnace is $2,000 or higher. An energy-efficient gas furnace will have a higher upfront cost when compared to a standard furnace. The minimum cost to hire a technician to install a gas furnace is $1,600. Contact us for best furnace repair services in Downers, Grove, IL.

Book a Furnace Tune-Up or Replacement Appointment

Call Us: (630) 968-0783

Book An Appointment Online

Other Types of Heating & Air Conditioning Services:

  • Furnace and air conditioning seasonal specials
  • Furnace and central air conditioning repair
  • HVAC replacement and installation
  • Boiler repair
  • Boiler replacement
  • Electronic air cleaners
  • Humidifiers
  • Gas leaks

Frequently Asked Questions (FAQ's)

What Size Air Conditioner Do I Need?

If you are having issues with your old air conditioning system, it’s important to become familiar with the process of sizing a system prior to calling a licensed HVAC technician. This will help you purchase an air conditioner that is the correct size for your house. Have you accidentally purchased an air conditioner that is too powerful for your home? If the system is too large, it will activate and deactivate quickly throughout the day. This will cause the humidity levels in your house to increase. To avoid excess moisture, it’s important to select a properly sized air conditioner for your house.

On the other hand, purchasing an air conditioner that is too weak for your space will cause the total price of your utility bills to increase each month. In addition, the air conditioner will be required to remain activated for a long period of time to maintain the temperature in your house. There are two metrics that are utilized to determine the cooling capacity of a central air conditioning system. These two metrics are British Thermal Units Per Hour (BTUh) and tons.

If an air conditioner features a cooling capacity of one ton, this is equivalent to 12,000 BTUh. BTUh is a metric that refers to the total quantity of heat in BTU’s an air conditioner is able to extract from the air in an hour. On the other hand, BTU us a unit that is utilized to determine the total quantity of heat that is required to increase the temperature of a single pound of water by one degree Fahrenheit. The cooling capacity of a central air conditioner will usually range from 20,000 - 60,000 BTUh depending on the size of your home.

There are a variety of factors you should be familiar with while you are sizing your new air conditioner. Variables such as appliances, sunlight, climate, windows, and the total square footage of your house. To receive help with sizing a new air conditioner, give our team a call by phone at (630) 968-0783 or book an appointment on our site. The team of licensed technicians at Stephens Plumbing provide dependable HVAC repair services to homes in Downers Grove and other areas of Illinois.


What is a SEER Rating & Why Is It Important?

SEER ratings are utilized to determine the efficiency of a central air conditioning system. The acronym refers to Seasonal Energy Efficiency Ration (SEER). A SEER rating is used to confirm the total quantity of cold air provided by an air conditioner throughout the summer season divided by the total amount of electricity the HVAC system consumes. An air conditioning system with a high SEER rating is more efficient when compared to a unit with a low SEER score.

A brand new energy-efficient central air conditioning system will include a SEER rating of 21 or lower. The minimum SEER rating of an air conditioner is 13. An air conditioning system with a high SEER rating will usually include a variable speed compressor and blower. Most types of single-stage systems will include a low SEER rating. A single-stage air conditioner is engineered to operate at full capacity throughout the day. This type of system provides uneven cooling in most homes.

On the other hand, a variable speed air conditioning system will feature a high SEER rating. This type of air conditioner rarely operates at full capacity. In fact, it is not uncommon for a variable speed system to operate at 30% capacity. Since a variable speed system operates at a low capacity, it will remain activated for a longer period of time. Variable speed air conditioners are able to dehumidify your house in a more efficient manner when compared to outdated single stage systems. Our team of HVAC contractors near you provide safe and fast HVAC services for all types of air conditioning issues. Give our team a call by phone at (630) 968-0783 or schedule an appointment on our site to receive help.


Why Is My Air Conditioner Running But Not Cooling the House?

Dirty Outdoor Condenser System

If your home doesn’t feel cold and comfortable after an hour, this is a clear indicator of an issue with your central air conditioning system. This may be caused by excess dirt and rubble in your outdoor condenser system. This is the portion of your air conditioner that is engineered to release excess heat energy from your house to the outdoor air. As your air conditioner becomes older, it is not uncommon for a buildup of dirt, dust, or sticks the flow of air in the condenser.

To ensure your condenser is able to release warm air to the outdoors, we recommend using a water hose to gently remove dirt and rubble from the condenser fins. This will usually remove excess contaminants. If you see additional objects in the outdoor condenser that cannot be reached with the water hose, do not attempt to disassemble the system. To avoid damage to your air conditioner, call a local HVAC contractor on our team by phone at (630) 968-0783. Stephens Plumbing provides trusted HVAC repair and installation services to homes in areas of Illinois such as Elmhurst, Bolingbrook, Plainfield, Wheaton, and Aurora.

Tripped Circuit Breaker

A malfunctioning outdoor air conditioning system may also be caused by a tripped circuit breaker. If your indoor unit is still operating, walk to your breaker panel to confirm if the breaker connected to the outside system is tripped. Switch the breaker in the panel to the on position and try to activate your air conditioner. If the circuit breaker trips a second time, do not try to activate it again. Immediately call a licensed electrician or HVAC contractor to diagnose the problem. We provide high-quality HVAC services to homes in Downers Grove and other areas of Illinois.

Refrigerant Leak

If you feel warm air coming from your supply vents, this is an indicator of a refrigerant leak. The refrigerant in an air conditioner is engineered to extract heat from the air in your house. However, a system with a low supply of refrigerant will not be able to efficiently remove excess heat energy from the air. Other signs of a refrigerant leak include frozen refrigerant pipes and hissing noises. If your air conditioner is running but not cooling your house, call an HVAC contractor at Stephens Plumbing by phone at (630) 968-0783 or sign up for an appointment online. We offer emergency HVAC installation and repair services to homeowners in Illinois.