Top Emergency HVAC Services in Saint Louis, MO,  63101  | Compare & Call

Saint Louis HVAC Company

Saint Louis HVAC Company

Saint Louis, MO
Emergency HVAC Services

Phone : (888) 996-4787

Based in Saint Louis, Missouri, Saint Louis HVAC Company delivers HVAC service for apartments, single-family homes, and small commercial spaces. The team understands local climate demands and system wear.
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Harster Heating & Air Conditioning

Harster Heating & Air Conditioning

★★★★☆ 4.3 / 5 (31)
9900 Gravois Rd, Saint Louis MO 63123
Heating & Air Conditioning/HVAC, Water Heater Installation/Repair

Harster Heating & Air Conditioning has been a trusted HVAC and water heater service for Saint Louis, MO since 1950. They handle installations, repairs, and maintenance. With a philosophy centered on fair pricing and quality work, this family-owned company builds lasting customer loyalty throughout the greater St. Louis metro area.

McNeely & Son Heating and Cooling

McNeely & Son Heating and Cooling

★★★★★ 5.0 / 5 (4)
Saint Louis MO 63125
Heating & Air Conditioning/HVAC, Electricians, Plumbing

Founded in 2016, McNeely & Son Heating and Cooling is a family-owned Saint Louis, MO contractor trusted for reliable electrical, plumbing, and HVAC work. Their skilled technicians provide expert installation and repair services, available for emergency calls with extensive hours seven days a week to serve your home.

Matheny Heating & Cooling

Matheny Heating & Cooling

★★★★☆ 4.0 / 5 (16)
6317 Olive Blvd, Saint Louis MO 63130
Heating & Air Conditioning/HVAC

Matheny Heating & Cooling provides reliable HVAC installation, replacement, and repair for Saint Louis, MO. A local company with a reputation for quality work, they help keep homes comfortable year-round. Their skilled technicians handle everything from routine maintenance to urgent system fixes, offering dependable service to the community.

Kirkwood Heating & Air Conditioning

Kirkwood Heating & Air Conditioning

★★★★☆ 4.2 / 5 (15)
9350 Watson Industrial Park, Saint Louis MO 63126
Heating & Air Conditioning/HVAC, Water Heater Installation/Repair

Since 1984, Kirkwood Heating & Air Conditioning has been the trusted Saint Louis, MO expert for HVAC and water heater services. This local, family-owned company provides installation, repair, and maintenance with skilled technicians. A recognized Carrier President's Award winner, they offer reliable solutions for both residential and commercial comfort needs in the greater Saint Louis area.

Degenhardt Heating And Cooling

Degenhardt Heating And Cooling

★★★★☆ 4.1 / 5 (13)
Saint Louis MO 63111
Heating & Air Conditioning/HVAC

Since 1984, Degenhardt Heating and Cooling has been the trusted Saint Louis, MO, HVAC expert for residential and commercial clients. Their certified technicians provide reliable system installation, repair, and maintenance. They serve Saint Louis and surrounding communities with a focus on quality work and fair pricing for all heating and cooling needs.

My Guy Heating and Cooling

My Guy Heating and Cooling

★★★★★ 5.0 / 5 (11)
5268 Fyler Ave, Saint Louis MO 63139
Heating & Air Conditioning/HVAC

My Guy Heating and Cooling provides reliable HVAC installation and replacement services for Saint Louis, MO. Their skilled team is available 24/7 for emergency repairs and scheduled work, offering trusted solutions to keep your home comfortable year-round.

Veteran Air

Veteran Air

Saint Louis MO 63109
Heating & Air Conditioning/HVAC

Veteran Air provides Saint Louis, MO, with reliable HVAC installation, repair, and maintenance. Their experienced team is known for dedicated service, handling everything from routine check-ups to urgent repairs. They proudly serve the greater metro area, bringing a mission-focused approach to every heating and cooling job.

Rick Rasch Heating & Cooling

Rick Rasch Heating & Cooling

★★★★★ 5.0 / 5 (1)
1627 Sublette Ave, Saint Louis MO 63110
Heating & Air Conditioning/HVAC

Rick Rasch Heating & Cooling is a family-owned HVAC provider with over 30 years of service to Saint Louis, MO. Their skilled technicians handle installations, repairs, and maintenance for heating and cooling systems. A+ BBB rated, they offer upfront pricing and are available 24/7 for emergency service calls.

Affton Heating & Ac

Affton Heating & Ac

★★★★★ 5.0 / 5 (2)
7212 General Sherman Ln, Saint Louis MO 63123
Heating & Air Conditioning/HVAC

When your HVAC system fails in Saint Louis, MO, Affton Heating & Ac provides reliable service. Their skilled team handles installation and replacement jobs with care. Known as a trusted local contractor, they offer prompt emergency repairs to keep homes comfortable. They are ready to assist residents across the Saint Louis area.

Bennett Heating & Cooling

Bennett Heating & Cooling

★★★★★ 5.0 / 5 (4)
Saint Louis MO 63116
Heating & Air Conditioning/HVAC

Bennett Heating & Cooling provides reliable HVAC service in Saint Louis, MO. Founded by a veteran after his military service, this trusted local company handles heating and cooling installations, change-outs, and repairs for all brands. They serve residential and light commercial customers across the Saint Louis metro with skilled technicians.



HVAC Service in Saint Louis, MO: Your Local Guide for Year-Round Comfort

Living in Saint Louis means facing the full range of Midwestern weather. One day it’s a humid, 95-degree summer scorcher, and the next, a polar vortex can send temperatures plunging below freezing. When your home's comfort system fails during these extremes, you need help fast. This guide is for Saint Louis homeowners looking to understand HVAC service, from routine maintenance to emergency repairs. Whether you’re in the historic brick homes of Soulard, a newer subdivision in Chesterfield, or a condo downtown, we’ll cover what you need to know about reliable HVAC service in Saint Louis, MO.

What Does Full HVAC Service Mean for Saint Louis Homes?

HVAC service isn’t just fixing something when it breaks. It’s a full spectrum of care for your heating, ventilation, and air conditioning system. For Saint Louis residents, this typically includes seasonal tune-ups in the spring and fall, same-day repairs for sudden problems, and 24/7 emergency response for true crises. Think of it like taking care of your car: regular oil changes prevent major engine failure. A professional HVAC service visit might involve cleaning coils, checking refrigerant levels, testing safety controls on your furnace, and ensuring everything runs efficiently to handle our sticky summers and cold winters.

What Qualifies as a Real HVAC Emergency?

Not every HVAC problem requires a midnight service call. A true emergency is about safety and preventing major damage. In Saint Louis, we consider these situations emergencies:

  • No Heat During Freezing Weather: If your furnace quits when it's 20 degrees out, especially with children or elderly family members at home.
  • AC Failure During a Heatwave: When the heat index is over 100°F and your AC stops cooling.
  • Gas Smells or Suspected Carbon Monoxide: Any odor of natural gas or if your CO alarm is sounding.
  • Electrical Burning Smells or Smoke: Coming from your furnace, air handler, or thermostat.
  • Major Water Leaks from Your AC: A clogged condensate line can cause water to pour from your indoor unit, risking ceiling and floor damage.

If you experience any of these, it’s time to call for emergency HVAC service immediately.

How Saint Louis Climate and Housing Challenge Your System

Our unique climate puts extra stress on HVAC equipment. The high summer humidity makes ACs work harder, often leading to frozen coils. Winter ice storms and salt air from treated roads can corrode outdoor units. Older homes in neighborhoods like The Hill or Lafayette Square might have aging gas furnaces or boiler systems that need careful maintenance, while newer homes in Ballwin or St. Charles often use high-efficiency heat pumps. From central AC and gas furnaces to ductless mini-splits in home additions, knowing your system type helps when you need service.

Common HVAC Problems We See in Saint Louis

Homeowners across the region often call us for similar issues. In the summer, we get many calls for ACs that aren’t cooling, often due to a failed capacitor or a refrigerant leak. Just last July, a family in Kirkwood had their AC freeze solid during a humid spell because of a dirty air filter. In the winter, furnaces that won’t ignite are common, frequently caused by a dirty flame sensor or a faulty igniter. Another frequent issue is the AC leaking water inside the house, which usually points to a clogged condensate drain line—a quick fix if caught early, but it can cause water damage in a basement or crawlspace.

Emergency, Same-Day, or Routine Service: Knowing the Difference

Understanding when to call for what type of HVAC service is key. If your AC is blowing slightly warm air on a mild 80-degree day, a same-day or next-business-day appointment is usually fine. This is standard HVAC repair. If that same failure happens during a dangerous heat advisory, it becomes an emergency. For routine needs like an annual furnace check-up or replacing a thermostat, scheduling during regular business hours is perfect. The goal is to match the urgency of the service to the situation, ensuring safety and comfort without unnecessary emergency fees when possible.

A Transparent Look at HVAC Service Costs in Saint Louis

We believe in clear, upfront pricing. Most HVAC service calls start with a diagnostic fee, typically between $80 and $120, to pinpoint the problem. For emergency service after hours, on weekends, or holidays, there is an additional emergency call-out fee, which can range from $100 to $200. Labor rates for emergency times are often 1.5 to 2 times the standard rate. Parts are priced separately. For example, a common repair like replacing a furnace igniter on a weekday might cost $250-$400 total. An emergency capacitor replacement for an AC on a Sunday afternoon in July might range from $400-$600. These are estimates, and your final cost depends on the specific repair and parts needed.

Signs You Need Immediate HVAC Service

  • No heat during freezing Saint Louis winter weather.
  • Carbon monoxide alarm is beeping or has activated.
  • You smell a strong odor of natural gas near the furnace.
  • Seeing smoke or smelling burning from HVAC equipment.
  • Water is pooling from your indoor air handler or AC unit.
  • Loud banging, screeching, or buzzing noises from the system.
  • Complete AC failure during a period of dangerous heat.

Safety Checklist While Waiting for Help

  • If you smell gas, evacuate the home immediately and call the gas company from outside.
  • If the CO alarm sounds, get everyone outside into fresh air and call 911.
  • If it is safe to do so, turn off the HVAC system at the thermostat and the circuit breaker.
  • Keep children and pets away from the malfunctioning equipment.
  • Move elderly family members or anyone with health concerns to a safe, temperate location if possible.

Remember: Never attempt to repair gas lines or high-voltage electrical components yourself.

Local Codes and Why Professional Service Matters

In Saint Louis and across Missouri, HVAC work must comply with specific codes. This includes proper furnace venting to prevent carbon monoxide hazards and EPA Section 608 certification for handling refrigerants. Major installations like a new furnace or AC often require a permit from the city or county. Using a licensed, insured HVAC service provider ensures the work is done safely, correctly, and up to code, protecting your home and your family.

What to Expect for Response Times in the Saint Louis Area

When you call for emergency HVAC service in Saint Louis, our goal is to have a technician on the road quickly. Typical response times can range from 60 to 180 minutes, depending on traffic, severe weather conditions, and your specific location relative to our dispatchers. We navigate the metro area, from I-64 to I-70 and I-270, to reach you as safely and swiftly as possible.

Your Trusted Partner for Saint Louis HVAC Service

From routine maintenance to urgent repairs, having a reliable local expert makes all the difference for your home’s comfort and safety. We’ve covered what HVAC service in Saint Louis, MO entails, how to handle emergencies, and what to expect. Your comfort is our priority, no matter the season.

Saint Louis Emergency HVAC provides trusted HVAC service in Saint Louis, MO, including 24/7 emergency response and same-day repairs. Call (888) 996-4787 now for immediate dispatch.





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