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Call (630) 968-0783
747 Ogden Avenue • Downers Grove, IL
Servicing our Customers Since 1923


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HVAC Repair & Installation Services


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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.

Signs It’s Time to Call an HVAC Contractor & Book & HVAC Repair Appointment

Do you have issues with your air conditioning 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, Plainfield, Clarendon Hills, Darien, Oak Brook, Naperville, Burr Ridge, and Lisle, Illinois. We offer HVAC services for homes and commercial spaces such as warehouses, offices, and facilities. The HVAC and furnace repair specialists at Stephens Plumbing also offer solutions such as plumbing repair, drain cleaningremodeling, water line repair or install, water heater repairfixture or appliance installation, and backflow testing. Call a Professional HVAC contractor at Stephens Plumbing by phone at (630) 968-0783 or submit a service request online.

Book an Air Conditioning or Heating Appointment

Call Us: (630) 968-0783

Are you having issues with the furnace or air conditioner in your home or commercial facility? We are able to perform repairs or install a new system from a reliable manufacturer



Signs of Issues With Air Conditioning Systems

The Air Conditioning System is Producing Less 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, Illinois and other areas.

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.

The Air Conditioning Unit is Producing 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 and furnace repair technicians at Stephens Plumbing are able to perform repairs on the motor or electrical compartments 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.

Book an HVAC Repair Appointment

Our professional HVAC contractors are able to perform repair and troubleshooting methods to your heating or cooling unit. We also offer the latest new furnaces and air conditioners from the best manufacturers in the industry



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 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.

Other Typical Air Conditioning, Furnace, & Boiler Repair Jobs:

  • 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.