Dealer Brands

Mon-Clair Heating & Air Conditioning specializes in the installation and maintenance of American Standard and Mitsubishi Mini Split Systems. As well as warranty repair for these products.

Contact Us Today

Call us for your $79 furnace or A/C clean and check. Active military/Veterans and first responders receive a 10% discount!

Call us at:

618-828-0075 in Il or 314-570-0436 in Mo

Email: Monclairheating@gmail.com

Experienced HVAC Contractor

Locally owned and operated HVAC contractor serving Illinois' Monroe, St. Clair, and Randolph counties, specializing in residential and light commercial heating and cooling systems. Owner Nick Antonas has over 20+ years of experience in the field.

Our services

Provide a general summary of the services you provide, highlighting key features and benefits for potential clients.

Service

We can maintain and repair all makes and models of Furnaces and air conditioning systems as well as boilers, water heaters, and gas fireplaces.

IAQ

We can address indoor air quality issues in your home with the addition of humidifiers, dehumidifiers, air scrubbers, uv lights and other options.

Installation

We provide installation of furnaces, a/c's, water heaters, Boilers, and duct work. As well as venting of appliances.

Recent Installations

Proud sponsor of From The Nest Podcast hosted by Tj and Collin

Service Areas

We proudly service Millstadt, Columbia, Red Bud, Freeburg, Valmeyer, Belleville, Swansea, Shiloh, Fairview Heights, Smithton, Dupo, Cahokia, St. louis and Northern Jefferson co in Mo.

Hours

9 AM - 5 PM Monday-Friday

Emergency service also available.

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