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K&J  Heating and Cooling

HVAC Company in Glen Ellyn

From historic Victorians near Lake Ellyn to newer custom rebuilds, no two homes in Glen Ellyn heat or cool quite the same way. Since 1998, K&J Heating and Cooling has provided dependable, family-owned HVAC service throughout the village.

Our shop in Villa Park is located just 15 minutes away, making it easy for Glen Ellyn families to get the HVAC services they need. Plus, our union technicians make a living wage rather than relying on sales commission, so you can always expect long-term comfort solutions—not high-pressure sales pitches.

Need heating or cooling service? Call (630) 834-3456 today to join the over 350 Glen Ellyn families we’ve served so far. Emergency HVAC service is available.

HVAC Solutions for Glen Ellyn Homes

Glen Ellyn has a mix of older homes, mid-century ranches, split-levels, and newer construction. Depending on when your house was built and whether it’s been renovated, you may have ductwork that’s too small for your current equipment, rooms that don’t heat or cool evenly, or a system that’s working harder than it should.

K&J provides heating, cooling, heat pump, and indoor air quality services to help homeowners address these problems. Our technicians look at how your entire system is working before recommending repairs or replacement options.

Cooling Services

If your upstairs bedrooms are hot while the rest of the house feels comfortable, your air conditioner may not be the only thing to blame. In some Glen Ellyn homes, older ductwork, additions, or poorly placed vents can make it difficult to get enough cool air to certain rooms.

Our AC services in Glen Ellyn include air conditioning repair, installation, replacement, and maintenance service, and we always take a whole-system approach to provide long-lasting solutions for your home.

For homeowners replacing an older air conditioner, we install Carrier cooling systems with options for variable-speed operation and improved humidity control. These systems can adjust their cooling output rather than running at full capacity every time they turn on, which can help maintain steadier temperatures.

If your home has been remodeled or expanded, we’ll also look at whether your existing ductwork can handle the cooling needs of the additional space. Installing a larger AC unit won’t necessarily fix rooms that aren’t getting enough airflow.

Heating Services

K&J Heating and Cooling provides heating services, including furnace repair, installation, replacement, and maintenance services throughout Glen Ellyn. Our technicians take the time to identify what’s causing the problem and explain your options before recommending repairs or new equipment.

When it’s time for a furnace replacement, we don’t automatically recommend the same size system you had before. Many Glen Ellyn homes have undergone renovations, insulation upgrades, or additions that change their heating requirements. We use a precise Manual J load calculation to determine the appropriate equipment size based on your home’s current needs.

The vast majority of our Glen Ellyn customers choose a two-stage furnace, which can run at a lower heating output during milder weather and switch to a higher output when temperatures drop. This helps maintain more consistent indoor temperatures without the furnace running at full capacity every time it turns on.

We also offer routine furnace maintenance to help catch developing problems before they lead to a breakdown. Our Friends & Family Plan includes two comprehensive HVAC inspections and tune-ups each year, priority scheduling, and valuable service discounts.

Heat Pumps & Dual-Fuel Systems

If you’re thinking about replacing your furnace or air conditioner, a heat pump may be worth considering. Heat pumps provide both heating and cooling by transferring heat rather than generating it through combustion.

K&J offers heat pump installation, repair, replacement, and maintenance in Glen Ellyn. We can help you compare a traditional furnace and AC setup with a heat pump or a dual-fuel system that combines a heat pump with a gas furnace.

A dual-fuel system uses the heat pump for heating when outdoor conditions are suitable and switches to the furnace when needed. This can be a good option for homeowners who want to use electric heating without giving up their gas furnace.

Before recommending any equipment, our team will inspect your home’s insulation, ductwork, electrical capacity, and heating needs. We’ll also explain how different heat pumps perform in cold weather and help you identify available rebates for qualifying systems.

Indoor Air Quality

K&J provides indoor air quality services in Glen Ellyn to help address humidity issues, allergy triggers, and indoor pollutants. Our services include:

  • Whole-home humidifiers and dehumidifiers
  • Whole-home air purifiers and electronic air cleaners
  • UV light air sanitizers and Air Scrubbers
  • AC coil cleaning and sanitization
  • Indoor air quality testing and monitoring

If you’re concerned about dust, humidity, or other indoor air issues, we’ll help you figure out what’s contributing to the problem and which solutions are worth considering.

Call (630) 834-3456 to learn more about indoor air quality services for your Glen Ellyn home.

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Meet Our Glen Ellyn HVAC Team

Why Glen Ellyn Homeowners Rely on K&J

A house built in Glen Ellyn in the 1950s may have very different heating and cooling needs than one built in the last decade. Our technicians take these factors into account when evaluating your system and before recommending repairs or replacements.

We're a family-owned union shop that's been serving the western suburbs since 1998. Unlike companies that pay their technicians based on sales, our technicians are paid a living wage. That means they don't have a financial incentive to recommend a new furnace or air conditioner when a repair would do the job.

As a Carrier Factory Authorized Dealer, we are equipped to install high-quality Carrier heating and cooling equipment and help homeowners make smart, cost-effective decisions for their home.

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Family-owned and locally trusted since 1998

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Licensed, insured, and certified technicians

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Transparent pricing no hidden fees

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Fast scheduling and dependable service

Our REVIEWS

Thanks, guys!

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Nancy Reagan profile picture
Nancy Reagan
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Matt was pleasant and worked really hard on my repair issue. He showed me pictures of the maintenance that was done on the furnace. That was a first from this company we have used for years.
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Dan Naughton profile picture
Dan Naughton
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Had the pleasure of meeting with Sam, your service tech and he was wonderful. Answered all my questions, and gave me options with needed quotes. Great service and pricing!
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Patty Dienethal profile picture
Patty Dienethal
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Laura and Mat were very personable. I also enjoy hiring bus inesses in the neighborhood
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Bob Tretina profile picture
Bob Tretina
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I have used K&J heating and cooling for 10 years, possibly longer. Excellent company! Sold the house, and downsized into a condo. Didn't know anything about the cooling system in the condo. Called K&J, they sent out Paul as my service tech. Couldn't of ask for a better individual. Paul was very polite, knowledgeable and answered all my questions regarding this cooling system. Definitely would use Paul again in the Fall to inspect the heating system. Thanks K& J I had Sam come out to check and clean the furnace in mid July 25'. Great young man, polite, knowledgeable and answered all my questions. I would definitely recommend Sam to anyone! The month of March 26' met the new owner, IIan Cohen, who gave me an estimate on a new furnace. Great guy, knowledgeable and seemed to really care about his customers. With that said, had techs Jimmy and Sam install my new furnace. Polite, responsible, took extra care regarding my surrounding environment. Furnace was in a small utility room. Would definitely recommend this company and employees overall! 👍
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P Gilchrist profile picture
P Gilchrist
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Furnance tune up/ cleaning. Arrived on time - provided a text link to see the arrival time of the service tech.. Very professional. Honest and straightforward. No "up selling." Company union techs: skilled,trained, and knowledgeable - not a jobbed out sub contractor. Rare these days. Truly a great family owned company. You get what you pay for...best bang for your buck.
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Gene Abr profile picture
Gene Abr
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Very professional, did not try to over sell, honest person. Will use again.
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Timothy Beck profile picture
Timothy Beck
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Only hvac company I use. They are very responsive, easy to deal with, great service and installs and most important, I never have felt pressured to buy a bunch of stuff. They’ll show me what was wrong on minor repairs so in the future I can take care of it myself. As someone that deals with subcontractors all day, I never feel like I’m being ripped off at all.
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Anna szudrowicz profile picture
Anna szudrowicz
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K&J is the best Heating and Air Conditioning Company. Very professional, great service and they know their job. I'm super grateful. Paul is Wonderful. Explains everything.

Frequently Asked Questions About Glen Ellyn HVAC

How much does a new air conditioner cost in Glen Ellyn?

In 2026, a new Carrier central air conditioner from K&J starts at $5,900. This includes standard installation and removal of your old equipment. Your final price depends on system size, efficiency, and whether your ductwork or electrical system needs updates.

How often should I service my furnace and air conditioner?

Annually. Much like getting your oil changed or getting your teeth cleaned. It’s important to keep up with maintenance.

How fast can you get to Glen Ellyn for a no-heat call?

We usually have same day appointments available and can be there quickly as we’re just down North Ave.

Can you add central air conditioning to an older Glen Ellyn home?

In most cases, yes. Depending on whether your home already has usable ductwork, we can design a conventional split AC system, route compact high-velocity ductwork, or install a zoned ductless mini-split system that cools individual rooms without tearing into your walls.

Are heat pumps reliable during Illinois winters?

Yes. Cold-climate inverter heat pumps extract usable heat even well below zero. Many Glen Ellyn homeowners also choose dual-fuel hybrid setups, where an electric heat pump handles the spring, fall, and moderate winter days, switching over to a high-efficiency gas furnace during severe freezes.

What areas does K&J Heating and Cooling serve? 

K&J Heating and Cooling provides service to Wheaton, Villa Park, Lombard, Elmhurst, Glen Ellyn, Oakbrook, Hinsdale, and neighboring areas.

Let’s talk about better indoor air

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Call Now: (630) 834-3456