Our HVAC Services

Reliable Heating & Cooling Services in St. Louis, MO

At 1-Call Heating and Cooling, LLC, we provide dependable, full-service HVAC solutions for homeowners across the St. Louis metro area and surrounding Illinois communities. From fast repairs to complete system installations, our team is committed to restoring comfort with honest service and quality workmanship.

Air conditioning unit next to a brick building and landscaping.
Person in gloves working on an air conditioner with a ladder in a room.

Core HVAC Services

At 1-Call Heating and Cooling, LLC, we provide dependable heating and cooling repair, service, and diagnostics for homes throughout the St. Louis metro area and surrounding Illinois communities. Our experienced technicians service all makes and brands of HVAC equipment, ensuring accurate troubleshooting and reliable solutions when you need them most.

White air conditioner mounted on a white wall in a room, with a window and doorway visible.

Installation & Replacement

When it’s time to upgrade or replace your HVAC system, 1-Call Heating and Cooling, LLC delivers professional furnace and air conditioner installations tailored to your home’s comfort needs. We install complete HVAC systems, including ductless mini-splits, and help you select the right equipment based on efficiency, performance, and budget.

Hands holding a green-bristled, long-handled brush aimed toward a ceiling vent for cleaning.

Indoor Air Quality

Cleaner indoor air plays a vital role in home comfort and overall well-being. At 1-Call Heating and Cooling, LLC, we provide professional indoor air quality solutions designed to reduce airborne pollutants, control humidity, and improve airflow throughout your home.

HVAC technician working on a furnace in a home.

Duct & Airflow Services

Proper airflow is essential for efficient HVAC performance and consistent indoor comfort. At 1-Call Heating and Cooling, LLC, we offer professional duct and airflow services designed to improve circulation, reduce buildup, and support cleaner indoor air.

Person connecting pipes to an air conditioning unit.

Maintenance

Routine HVAC maintenance is essential for keeping your system running efficiently and preventing unexpected breakdowns. At 1-Call Heating and Cooling, LLC, our maintenance services are designed to extend equipment lifespan, improve performance, and maintain consistent comfort throughout the year.