Trusted by St. Louis

for over 40 years

  • Serving O’Fallon, Lake St. Louis, and South St. Louis County.

  • Fully licensed, bonded, and insured.

  • Long warranties for added peace of mind.

Fast, reliable heating repairs

Energy-saving AC installations

Commercial refrigeration service

Heating and cooling done right, priced right, and handled fast.

Core Residential Services

Heating Systems: Repair, maintenance, and installation of furnaces (gas and electric), boilers, and heat pumps.

Cooling Systems: Full service for central air conditioners, including refrigerant recharges, compressor repairs, and seasonal tune-ups.

Preventative Maintenance: Scheduled "Precision Tune-Ups" usually performed twice a year (spring for AC, fall for heating) to ensure efficiency and prevent breakdowns.

Indoor Air Quality (IAQ): Installation and servicing of humidifiers (critical for dry Missouri winters), dehumidifiers, air purifiers, and UV germicidal lamps.

Humidifiers & Indoor Air Quality (IAQ)

Whole-House Systems: Installation of bypass or powered humidifiers directly into ductwork to combat dry winter air.

Maintenance: Annual "clean and check" services, including replacing water panels (pads) and checking for leaks.

Broader IAQ: Air purification (UV systems), dehumidifiers for summer humidity, and duct cleaning.

Water Heaters

Installation & Replacement: Sizing and installing conventional tank and tankless systems.

Maintenance & Repair: Flushing sediment, repairing thermostats, and fixing pressure relief issues or leaks.

Emergency Service: 24/7 support for burst pipes or sudden loss of hot water.

Get a clear price and a fast plan.

At Stricklin Heating and Cooling, we help homeowners and property investors get reliable comfort—without the runaround.

You get upfront pricing, fast response, and clean work from a fully licensed, bonded, and insured local team.
And with over 40 years serving the St. Louis area, we know how to fix it right the first time.

Heating and Cooling Experts

Stricklin Heating and Cooling fixed my AC fast and without surprise fees—exactly what I needed on a hot day.

J.S.

Smiling homeowner standing next to a newly installed air conditioning unit on a sunny day.
Smiling homeowner standing next to a newly installed air conditioning unit on a sunny day.

★★★★★

Stay Cool All Year

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