Specialties

Enhance your St. Louis home's air quality with SMCI HVAC. We provide professional duct cleaning and humidifiers for a healthier living space.

Outstanding Architectural Sheet Metal and Geothermal Contractors

We offer you simply outstanding heating and cooling services from architectural sheet metal to geothermal contractors in the St. Louis, Missouri region.

Mechanical Services

Since 1980, SMCI's top priority has been to provide superior commercial, industrial and residential services, meeting customer satisfaction...

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VRV Efficient Systems

Embracing VRV technology, SMCI has installed tons of Daikin VRV equipment and have honed their VRV expertise in multiple VRV jobs in the St. Louis area...

HVAC rooftop units on a commercial building, showcasing advanced heating and cooling technology relevant to SMCI's HVAC services in St. Louis.

Heating & Air Conditioning

Our commitment is to provide flexible, customized and tailored services to meet your needs. As part of your team, SMCI will provide guidance, support and professionalism...

Architectural Sheet Metal

SMCI's experienced staff is ready to assist you with your architectural sheet metal project...

Vicon plasma cutter in action, fabricating sheet metal for HVAC projects at SMCI. — Type image caption here (optional)

Sheet Metal Services

SMCI is equipped with a Vicon Plasma Cutter in house that allows us to customize and fabricate your sheet metal needs for any project...

Design Build Services

SMCI can be your partner in the design and the installation of your total HVAC system...

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St. Louis Geothermal Contractors

We have qualified staff to assist you with your new or retrofit geothermal heat pump installation. For a limited time the Missouri Department of Natural Resources has allocated funds for energy efficiency incentives...

Person cleaning a ceiling fan equipped with air purification filters, demonstrating air quality solutions related to HVAC services.

Air Quality & Purification

Turn your existing ceiling fan into the best air purifier, filtering the air in a room every 90 seconds and removing particles that cause allergies and asthma - all while quietly and efficiently saving you money on heating and cooling costs!