Top 3 HVAC Contractors in Saint Mary

Compare the highest-rated hvac professionals in Saint Mary, Missouri. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Saint Mary Climate Control

4.8
(127 reviews)
Verified

A full-service HVAC contractor specializing in high-efficiency system installations, complex repairs, and comprehensive maintenance plans. Known for their expertise with both extreme summer heat and cold winter conditions specific to the Mississippi River Valley region.

421 Riverbend Drive, Saint Mary, MO 63673

Specialties & Features

24/7 Emergency Service
Energy Efficiency Audits
Geothermal System Installation
Smart Thermostat Integration

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
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#2

River Valley Heating & Cooling

4.6
(94 reviews)
Verified

Family-owned HVAC provider with deep roots in the Saint Mary community. Excels in furnace and heat pump installations, with particular expertise in older home retrofits and improving indoor air quality in the region's humid climate.

88 Main Street, Saint Mary, MO 63673

Specialties & Features

Furnace Repair/Installation
Ductwork Design & Sealing
Humidity Control Systems
Senior Discount Programs

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
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#3

Precision Air Solutions

4.5
(68 reviews)
Verified

Specializes in precision HVAC system diagnostics and maintenance, particularly for modern high-efficiency equipment. Offers advanced duct cleaning and zoning solutions tailored to Saint Mary's seasonal temperature extremes.

305 Industrial Park Road, Saint Mary, MO 63673

Specialties & Features

AC Maintenance Plans
Duct Cleaning & Repair
System Zoning
After-Hours Emergency Repairs

Business Information

Years in Business:11 years
Licensed:Yes
Insured:Yes
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Why These Are the Top HVAC Contractors in Saint Mary

Saint Mary's HVAC market services a small but demanding community in Ste. Genevieve County, characterized by humid continental climate with hot, humid summers (90°F+) and cold winters (often below freezing). The Mississippi River valley location creates specific humidity challenges, making both dehumidification and humidification services valuable. Seasonal demand peaks during July/August for AC services and December/January for heating emergencies, with many homeowners seeking energy-efficient upgrades to manage extreme temperature costs.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Saint Mary regulations and climate