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Keeping Chicagoland Comfortable since 1953

24 hr Emergency Service


Your HVAC Professionals
Chicago's premier HVAC company since 1953.

Chicago, IL Heating & Air Conditioning Services

Chicago is a wonderful place to live, but when it’s cold, it’s very cold, and when it’s hot, it’s also humid. Our summers and winters can present challenges to even those who love where they live, and we’re here to make sure that your HVAC service needs are taken care of.

If you find that your home’s boiler or furnace is acting up again, or you’re in the market for a new central air conditioner before the summer hits, let our technicians assist you. We service residential, commercial and institutional clients, and we only have full-time employees, never sub-contractors. Call us today to book an estimate for a new boiler, furnace, air conditioning or other heating or air conditioning system. We service all of the Chicagoland area.

In addition, all of the sheet metal used on every job is fabricated in our very own in-house sheet metal shop. We're not just in the heating and air conditioning business. We're in the people business as well.

  • A crew of 25 technicians with 275 combined years of experience
  • Our trucks are fully stocked with supplies and parts
  • Fully licensed, bonded and insured
  • BBB A+ Rating
  • Lennox Premier Dealer
  • NATE-Certified
  • 24/7 emergency service

Elm Heating & Cooling, Inc., Keeping Chicagoland Comfortable since 1953. Call today!

We are one of the few Air Conditioning companies in Illinois who are authorized Dealers for both Lennox & Carrier Air Conditioners.

Carrier Products Lennox Products


What’s gone wrong with your boiler or furnace? Is it ancient and in need of immediate replacement? Or has it become inefficient and unreliable over the years because of a lack of maintenance? Whatever is getting in the way of your winter comfort, we want to provide you with a solution. We specialize in a wide range of heating services throughout the Chicago, IL area, and we want nothing less than your absolute satisfaction. Call us for heating repair, new system installations, replacements, or routine maintenance.

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Air Conditioning

When it comes to staying cool during the summer, you can’t afford second-rate portable window units. For pleasant, even comfort throughout the home, you need a centralized air conditioning system, and we can make sure that it works just as it should from day one. We specialize in the installation and replacement of central air units, packaged HVAC units, heat pumps, and ductless mini splits. If you’re having trouble with your existing AC, we’ll be more than happy to have a look and come up with a solution.

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Indoor Air Quality

Even if your HVAC system runs perfectly, and your home is always at the exact degree you specify on your thermostat, you can still have horrible indoor air quality. Why? The modern home is built for energy efficiency, and this often leaves much to be desired in terms of natural ventilation. If you want to make sure that your indoor air is optimized, consider installing a whole-house dehumidifier, humidifier, air purifier, or energy recovery ventilator. We not only install but also service such units.

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Commercial HVAC

It’s vital that your commercial heating, air conditioning, and indoor air quality equipment are there for your employees, customers, and/or tenants when you need them to be. We can make sure that your commercial system is appropriately sized and installed (we even do our own sheet-metal production!), and then take care of it with routine maintenance and repairs as need be. Let our commercial HVAC technicians ensure that your commercial space is exactly the way you want it to be.

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Commercial Refrigeration

If you’re in the food service or hospitality industry, then you probably have several large commercial refrigeration appliances running in your building. Walk-in and reach-in coolers and freezers, ice machines, beer coolers, and wine chillers are popular for a wide range of businesses, and we’re here to help you keep them in great condition from the date of their installation to any follow-up maintenance or repairs that they require. You can rely on the commercial refrigeration experts at Elm Heating & Cooling, Inc. 24/7. Call now to schedule an appointment!

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Professional Repairs Elm Heating & Cooling, Inc. serves the Chicago IL area with professional and reliable heating and cooling repair.

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Maintenance Elm Heating & Cooling, Inc. serves the Chicago IL area with professional and reliable heating and cooling repair.

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Replacement Elm Heating & Cooling, Inc. serves the Chicago IL area with professional and reliable heating and cooling repair.

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What every homeowner needs to know

What You May Not Know about Boilers

December 11, 2017

Do boilers really boil the water? Are they the same as furnaces? Do they require a lot of attention and maintenance?

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Is Your Furnace At Risk?

November 27, 2017

A gas heating system is an excellent choice for a whole-house heating installation. But is your system really safe?

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Our products are built to last. We guarantee it. For fast service you can trust, call us 24/7 at (708) 695-4493