St Louis HVAC Map - Heating & Air Conditioning Contractors Near You
Find certified HVAC contractors in the greater St Louis region for heating, cooling, and air quality services
Where can I find HVAC, heating & air conditioning services in St. Louis? St Louis Near Me Directory maps local heating and cooling pros across the metro — furnace and AC repair, new installs, and seasonal maintenance — on both sides of the river.
- Browse local providers by neighborhood and suburb on the live map
- See profiles, services offered, and contact details in one place
- Full metro coverage — St. Louis City, the Missouri suburbs, and the Illinois Metro East
Scroll down to explore the interactive map for affordable HVAC replacement nearby.
Save this map, bookmark this page, and share it with friends and neighbors — so you always have a quick reference for a reliable HVAC company near you when you need one.
By Lane Forman, Founder of St Louis Near Me DirectoryLocal St. Louis business maps, researched and maintained
Need a certified HVAC contractor near you? Our interactive map connects you with trusted heating and air conditioning professionals throughout the greater St. Louis region, serving Missouri and Illinois communities.
Whether you need AC repair, furnace installation, routine maintenance, or indoor air quality solutions, find qualified HVAC contractors ready to handle residential and commercial projects of any size.
Use the interactive map to explore 495 HVAC contractors throughout the St Louis metro region.
Click any pin to view contact information and any link to their Google Business Profile.
💡 Tip: Zoom in to find HVAC contractors in your specific neighborhood or city.
About this map: The St Louis HVAC Map plots heating and cooling contractors serving communities across the greater St. Louis metro — on both the Missouri and Metro East Illinois sides. Click any pin to see the contractors’ name, contact details, location, and any available links. It’s one of several service-specific maps in St Louis Near Me Directory, so you can explore coverage visually and jump back into our city pages and business categories for more detail.
HVAC Services Available
Air Conditioning Services: AC repair, air conditioner installation, AC maintenance, central air conditioning, ductless mini-splits, AC tune-ups, refrigerant recharge, compressor repair, emergency AC repair
Heating Services: Furnace repair, furnace installation, furnace maintenance, heat pump installation, heat pump repair, boiler repair, boiler installation, emergency heating repair, thermostat installation
Indoor Air Quality: Air duct cleaning, duct repair, duct installation, air purification systems, humidifiers, dehumidifiers, ventilation systems, UV air sanitizers, HEPA filtration
Commercial HVAC: Commercial HVAC installation, commercial HVAC repair, rooftop units, commercial maintenance contracts, building automation, energy efficiency upgrades
How much does HVAC service cost in St. Louis?
Most St. Louis HVAC calls start with a $100–$200 diagnostic fee, and labor runs about $75–$150 an hour (more after hours). Bigger jobs are priced by the system. Typical 2026 ranges:
| HVAC job | Typical St. Louis cost |
|---|---|
| Service / diagnostic call | $100–$200 |
| Labor (hourly) | $75–$150/hr (up to ~$250 emergency) |
| AC repair | ~$333 average (common repairs $150–$600) |
| AC-only replacement | $2,700–$6,400 (full systems $6,000–$12,000) |
| Furnace replacement | $3,000–$6,000+ installed (varies) |
| New HVAC system (AC + furnace) | $4,755–$11,888 |
Typical 2026 estimates (Angi, HomeGuide); your quote depends on system size, efficiency, and access. Get an itemized written estimate.
Do you need a licensed HVAC contractor in St. Louis?
Yes for any install or replacement. Missouri has no statewide HVAC license — St. Louis City and St. Louis County each license separately (the City issues a mechanical contractor’s license; the County an HVAC Servicer-Installer certificate), and anyone handling refrigerant must hold federal EPA Section 608 certification. Verify before you sign: St. Louis County Mechanical Licensing at 314-615-7096 (it publishes a certified-contractor list), or the City Mechanical Section at 314-622-3313. A licensed contractor pulls the permit — it’s a red flag if they ask you to.
What St. Louis weather does to your system
St. Louis works an HVAC system hard from both directions: humid, 90°F-plus summers with the heat index well over 100, and cold winters near a 15°F design low. That dual load makes two things matter more here than in milder climates — a spring and fall tune-up so the system doesn’t quit during the first heat wave or hard freeze, and honest ductwork. Many older St. Louis homes leak conditioned air through ducts in hot attics, and some historic homes have no ducts at all, where ductless mini-splits are often the smartest fix. When summer demand spikes, help exists too — see our guide to Cool Down St. Louis and cooling assistance.
When to call for emergency HVAC
No cooling during a heat wave or no heat in a hard freeze is a genuine emergency, and 24/7 service is standard across the metro. One safety note: if you smell gas, leave and call your utility or 911 first, then the HVAC company. Expect a possible after-hours premium on nights, weekends, and holidays — ask about it when you call.
Why Choose Local St. Louis HVAC Contractors?
✓ Licensed & Certified - Fully qualified HVAC technicians
✓ 24/7 Emergency Service - Fast response for heating and cooling emergencies
✓ Local Expertise - Familiar with St Louis climate and seasonal demands
✓ Energy Efficiency - Expert recommendations for cost-saving solutions
Areas Served
Our directory includes HVAC contractors serving St. Louis, St. Charles, O'Fallon, Chesterfield, Clayton, University City, Kirkwood, Webster Groves, Maryland Heights, Ballwin, Wildwood, Florissant, Hazelwood, and surrounding Missouri and Illinois communities throughout the metro area.
How to Find an HVAC Contractor Near You
- Browse the map to find HVAC contractors in your area
- Click any pin to view contractor details and services
- Compare options based on location and specialties
- Contact directly to schedule your HVAC service
Common HVAC Needs: Whether your air conditioner stopped working on a hot summer day, your furnace needs repair before winter, or you're ready to upgrade to a more efficient system, local HVAC contractors near you provide expert heating and cooling solutions year-round.
Need other contractors? Explore our maps for quality electricians, plumbing services, and roofing contractors throughout the St. Louis region.
Are You an HVAC Contractor? See how we market HVAC companies in St. Louis, or see how we're different. Our Gold Plan provides premium features and top placement to deliver the most service calls to your HVAC business.
Related St. Louis guides
- HVAC Repair vs. Replace: A St. Louis Homeowner's Guide
- How to Get and Compare Free HVAC Estimates in St. Louis
- St. Louis AC Repair: How to Choose a Pro (and When to Replace)
- How HVAC Contractors Can Dominate Local Search Without Breaking the Bank
- Get Free HVAC Estimates Near You: Find Local AC & Heating Services
- Find Your Nearest HVAC Supply Store: Expert Tips and Local Options
FAQ – St Louis HVAC Near You
Q. How much does it cost to replace an HVAC system in St. Louis?
A. A full HVAC system (AC and furnace) in St. Louis typically runs $4,755 to $11,888, with AC-only replacement around $2,700 to $6,400 and complete high-end systems reaching $12,000. Furnace replacement is usually $3,000 to $6,000-plus installed. Get an itemized written estimate, since size, efficiency, and ductwork all move the price.
Q. How much does AC repair cost in St. Louis?
A. The average St. Louis AC repair is about $333, with most common fixes falling between $150 and $600 on top of a $100 to $200 diagnostic fee. Labor runs roughly $75 to $150 an hour, more for after-hours emergency calls during a heat wave.
Q. Is it worth fixing a 20-year-old AC unit?
A. Often not. A common rule of thumb: multiply the repair cost by the unit’s age — if it tops about $5,000, replacement usually makes more sense. A 20-year-old system is near the end of its life, and a new high-efficiency unit cuts summer bills, so weigh a big repair against replacement.
Q. Do I need a licensed HVAC contractor in St. Louis?
A. For any install or replacement, yes. Missouri has no statewide HVAC license, so St. Louis City and County each license separately, and refrigerant work requires federal EPA 608 certification. Verify with St. Louis County Mechanical Licensing (314-615-7096) or the City (314-622-3313), and let the licensed contractor pull the permit.
Q. When should I service my HVAC system in St. Louis?
A. Twice a year: a cooling tune-up in spring and a heating tune-up in fall. St. Louis systems carry a heavy dual load from humid summers and cold winters, so seasonal maintenance is the cheapest way to avoid a breakdown during the first heat wave or hard freeze.
Q. Is a map pin enough to promote my HVAC business?
A. Map pins show where you work, but they carry only limited contact and basic details. A full listing on St Louis Near Me Directory gives you room for a rich description, photos, services, offers, and reviews, plus category placement — far more than a pin alone. See how we’re different, and our Gold Plan puts your HVAC business in front of more local customers.