Mon-Thurs: 7:00am-3:00pm Fri: 7:00am-12:00pm

620 Childs St., Wheaton, IL 60187



Commercial Heating and Cooling Services

At Mel-O-Air Heating & Air Conditioning Inc., we’re dedicated to supporting our commercial customers with comprehensive service.  Our NATE-certified team of specialists take a full system approach to achieving your goals for performance, efficiency, and comfort.  Through groundbreaking equipment, quality materials, innovative controls, and specialized services, we provide greater convenience, accessibility, and more precise management of your indoor environment.  With options ranging from thermostats and zoning systems, to sophisticated, web-based software products, Mel-O-Air Heating & Air Conditioning Inc. ensures ease of operation, minimized costs, and greater return for your investment.  We’re experts in balancing efficiency with comfort and economy with luxury to improve both your bottom line and productivity.

Long Lasting Commercial HVAC Services Throughout Northeastern Illinois

For new design/build or upgrades, accurate installation is the key to an effective, reliable, and efficient HVAC system.  Even premium equipment will fail to perform up to your demands unless properly sized and implemented by a highly skilled team with proven industry experience.  Serving business owners in Wheaton and across Wheaton, Glen Ellyn, Winfield, Warrenville, Carol Stream, Glendale Heights, Lombard, and Villa Park, IL since 1952, Mel-O-Air Heating & Air Conditioning Inc. maintains an A+ rating with the Better Business Bureau, is distinguished as a Carrier Factory Authorized Dealer, and our team is fully licensed, bonded, insured and EPA and NATE-certified.  Ongoing factory training and comprehensive commercial background ensures that every system is constructed on time, per specifications, and is operating at peak performance.  We offer a broad range of options to answer your specific situation, taking into account past and future changes to your facility, and execute proper follow-up service, repairs or maintenance for the sustainability of your system.

A properly operating HVAC system is crucial to your business and timely maintenance is your best defense against energy waste, sudden repair, and premature failure.  Even minor malfunctions can result in higher running costs, food or product damage, customer dissatisfaction, and safety hazards.  Mel-O-Air Heating & Air Conditioning Inc. will develop a maintenance program that answers your exact needs, achieves your goals, and both protects and extends the life of your assets.   By identifying energy saving possibilities, eliminating the majority of repair costs, and ensuring peak performance from your HVAC system, Mel-O-Air Heating & Air Conditioning Inc. reduces operational costs and downtime, and delivers superior comfort, health, and safety.  All services are performed by highly skilled, factory-trained, NATE and EPA certified technicians.  Trained in the latest techniques and technologies, our commercial specialists address your system’s specific concerns.  Through conscientious troubleshooting, cleaning, and tuning, we get the most out of your investment and improve the value of your facility.

Emergency HVAC services for your commercial building!

Know that if you should experience any difficulties, Mel-O-Air Heating & Air Conditioning Inc. is available to provide the prompt, professional service you need, whenever you need us.  On call every hour of every day, across the calendar and throughout the Chicagoland area, our 14 radio-dispatched, fully-stocked service trucks are standing by to resolve even the most challenging issues.  Separate service and installation departments translates into specialized technicians, who will get to the bottom of the problem and provide quick, effective, and lasting solutions.  Our large warehouse of inventory and parts, and fully equipped sheet metal shop, allows us to accommodate a wide range of projects with superior turnaround time and completely in-house.  When it comes to your heating and cooling, we never rely on subcontractors.

For trustworthy commercial heating and cooling installations, repairs, or maintenance, get in touch with Mel-O-Air Heating & Air Conditioning Inc. today!

Whether you entrust Mel-O-Air Heating & Air Conditioning Inc. with new installation, retrofit, preventative service or repair of your commercial comfort system, we answer with unwavering professionalism throughout every step of the process.  As a Carrier Factory Authorized Dealer, our team consistently meets strenuous criteria for technical know-how, business practices, and customer satisfaction.  We maintain a tidy work area, organized project management, and remove all old equipment and debris for proper disposal.  Through extensive experience, training, and customer dedication, we handle the details and take the extra steps that make the difference between disruptive and exemplary service.  Our proficiency, industry resources, and state-of-the-art equipment allows us to satisfy the most exacting requirements, and gives you the freedom to take superior performance and dependable operation for granted. Contact us today for heating, cooling and commercial HVAC services!

Commercial HVAC Company, Commercial HVAC Contractors & Commercial Air Conditioning Installations Wheaton, IL, Glen Ellyn, IL, Glendale Heights, IL, Carol Stream, IL, Warrenville, IL & Lombard, IL

Commercial Air Conditioning Installations in Wheaton, IL | Commercial HVAC Company Glen Ellyn, IL | Commercial HVAC Contractors Glendale Heights, IL

Commercial HVAC ContractorsCommercial HVAC CompanyCommercial Air Conditioning Installations ∴ Lombard, IL ∴ Glen Ellyn, IL ∴ Wheaton, IL

Our Testimonials

Just had the Mel-O-Air team replace my 18 year old Carrier Furnace and air conditioner with a new Carrier system. Price was the best out of three different quotes for the same system!

Karl L.

Probably one of the best HVAC companies around. I needed a new furnace installed over the winter and they were able to get it done in a timely fashion.

Tim R.

The Mel-O-Air team were flexible and responsive to my unique needs and time constraints. They did everything possible to install quality products at a great price. Scheduling was a breeze.

Nick K.

Mel-O-Air Heating and Air Conditioning is awesome. Stacy the office manager is so helpful all along the process. The installers arrived on time and did a fantastic job installing our new HVAC system.

Emelia Z.
Why Choose Mel-O-Air Heating & Air Conditioning Inc.?

Carrier President's Award 2019

Carrier President's Award 2020

Carrier President's Award 2021

Carrier President's Award 2022

Carrier President's Award 2023

North American Technician Excellence

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Lombard, IL

Warrenville, IL

Winfield, IL

West Chicago, IL

Glen Ellyn, IL

Glendale Heights, IL

Carol Stream, IL

Villa Park, IL

Wheaton, IL

Lisle, IL