Top 3 HVAC Contractors in Saint Peters

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

#1

Gateway Heating & Cooling

4.8
(142 reviews)
Verified

Family-owned HVAC specialist serving St. Charles County for over 25 years. Expert in high-efficiency system installations, complex ductwork design, and 24/7 emergency repairs. Known for exceptional customer service and technical expertise with all major HVAC brands.

456 Mid Rivers Mall Dr, Saint Peters, MO 63376

Specialties & Features

24/7 Emergency Service
Energy Efficient Systems
Ductwork Design
Furnace Replacement
Smart Thermostat Installation

Business Information

Years in Business:26 years
Licensed:Yes
Insured:Yes
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#2

ClimatePro HVAC Services

4.7
(118 reviews)
Verified

NATE-certified technicians specializing in precision HVAC installation and maintenance. Strong focus on energy-efficient solutions and indoor air quality systems. Offers comprehensive maintenance plans tailored to Missouri's humid continental climate.

321 Jungermann Rd, Saint Peters, MO 63376

Specialties & Features

HVAC Maintenance Plans
Indoor Air Quality Systems
High-Efficiency Installations
Heat Pump Specialists
Commercial HVAC

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
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#3

Summit Air Conditioning & Heating

4.6
(96 reviews)
Verified

Reliable local HVAC contractor known for quick response times and honest diagnostics. Specializes in furnace repair and AC replacement for residential properties. Offers free second opinions and transparent pricing.

7895 Mexico Rd, Saint Peters, MO 63376

Specialties & Features

Emergency Furnace Repair
AC Replacement
Honest Diagnostics
Same-Day Service
Senior Discounts

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
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Why These Are the Top HVAC Contractors in Saint Peters

Saint Peters experiences a humid continental climate with hot, humid summers (average highs 89°F) and cold winters (average lows 22°F), creating year-round demand for HVAC services. The housing stock includes many homes built 1980s-2000s requiring system upgrades and replacements. Energy efficiency is a growing concern given Missouri's temperature extremes and utility costs. The market features approximately 25 active providers ranging from national franchises to local specialists.

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 Peters regulations and climate