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TRUSTED BY SAINT LOUIS, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon717
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Saint Louis

Perfect Air

4.67(
6
)
Approved Pro

Perfect Air

4.67(
6
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1982 years of experience

Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free" Techs available Sat & Sun call for appointment.

Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free" Techs available Sat & Sun call for appointment.


"Great job! Above and beyond my expectations and at a great price!"

James C on June 2023

Locally & family owned business. Award winning.

"Great job! Above and beyond my expectations and at a great price!"

James C on June 2023


Avatar for Best Air Heating & Cooling

Best Air Heating & Cooling

4.93(
229
)

Best Air Heating & Cooling

4.93(
229
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Best Air Heating and Cooling offers 24 years of experience in the heating and cooling industry. We offer 15% senior citizen and veteran discounts on service repair work. We also have 24/7 emergency service available. Best Air only hires Ranken Technical school graduates with at least 10 years of experience to work on our customers' heating and cooling equipment. We accept all major credit cards.

"Perfectly - would recommend!"

Karen K on December 2020

Best Air Heating and Cooling offers 24 years of experience in the heating and cooling industry. We offer 15% senior citizen and veteran discounts on service repair work. We also have 24/7 emergency service available. Best Air only hires Ranken Technical school graduates with at least 10 years of experience to work on our customers' heating and cooling equipment. We accept all major credit cards.

"Perfectly - would recommend!"

Karen K on December 2020


"great well good"

DARLENE F on June 2021

#1 Trane Dealer in St. Louis Area.Over 100 years in business. Family owned and operated for 4 generations.

"great well good"

DARLENE F on June 2021


Avatar for CGX Overhead Door LLC

CGX Overhead Door LLC

4.88(
884
)

CGX Overhead Door LLC

4.88(
884
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

We are a family owned and operated company devoted to the highest customer satisfaction and affordable services. Winner of Super Service Award 2012-2017! We sell, service and install quality Door Link, Mid America, Amarr doors, and Liftmaster and Linear openers. We offer free no obligation estimates. So give us a call today and ask for our current specials, We look forward to working with you. Don't forget about our price match guarantee on any equivalent material and we'll double their warranty with written estimate. We are the proven Garage Door company in St Louis you want to do business with. Call now for our spring promotions, No gimmicks just quality doors at a low price

"System installed 2 years ago. Tore out of wall. They advertise 24/7 emergency repair. Called for help after trying to fix it for an hour so I could at-least get my car out of the garage. This was a Sunday. Traveling home for holidays on Monday. Texted with Cory for some advice. Which didn’t work then he called me to try to help. Obviously at this time I was getting frustrated and panicked. Asked for someone to please come help me. And he said they don’t work on weekends and I was demanding. Definitely do not recommend"

jennifer n on November 2023

We are a family owned and operated company devoted to the highest customer satisfaction and affordable services. Winner of Super Service Award 2012-2017! We sell, service and install quality Door Link, Mid America, Amarr doors, and Liftmaster and Linear openers. We offer free no obligation estimates. So give us a call today and ask for our current specials, We look forward to working with you. Don't forget about our price match guarantee on any equivalent material and we'll double their warranty with written estimate. We are the proven Garage Door company in St Louis you want to do business with. Call now for our spring promotions, No gimmicks just quality doors at a low price

"System installed 2 years ago. Tore out of wall. They advertise 24/7 emergency repair. Called for help after trying to fix it for an hour so I could at-least get my car out of the garage. This was a Sunday. Traveling home for holidays on Monday. Texted with Cory for some advice. Which didn’t work then he called me to try to help. Obviously at this time I was getting frustrated and panicked. Asked for someone to please come help me. And he said they don’t work on weekends and I was demanding. Definitely do not recommend"

jennifer n on November 2023


Avatar for Indoor Comfort Team

Indoor Comfort Team

4.95(
258
)

Indoor Comfort Team

4.95(
258
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Our customer-first approach has been at core of Indoor Comfort Team® business model since we first began servicing customers in the St. Louis, St. Charles and the Metro East areas with professional air conditioning as well as heating services back in 1979. Customer-first means honesty and integrity are the foundation of everything we do. From your initial phone call, to our certified and licensed service technician completing the job, to your full satisfaction. Trust, knowledge and competitive pricing have made us one of the most respected and trusted home services companies. But the fact is, we owe our success to our great customers and dedicated team who provide dependable service. Our team is proud to serve our customers.

"Indoor Comfort Team installed my HVAC system in 2019 and I have continued to use them for my regular fall and spring servicing. They consistently do an outstanding job. I had my most recent service done today, and the technician, Sabrina McIntyre, was no exception. She was prompt and efficient and carefully explained everything she checked. I was highly satisfied with her work. "

Steve M on November 2025

Our customer-first approach has been at core of Indoor Comfort Team® business model since we first began servicing customers in the St. Louis, St. Charles and the Metro East areas with professional air conditioning as well as heating services back in 1979. Customer-first means honesty and integrity are the foundation of everything we do. From your initial phone call, to our certified and licensed service technician completing the job, to your full satisfaction. Trust, knowledge and competitive pricing have made us one of the most respected and trusted home services companies. But the fact is, we owe our success to our great customers and dedicated team who provide dependable service. Our team is proud to serve our customers.

"Indoor Comfort Team installed my HVAC system in 2019 and I have continued to use them for my regular fall and spring servicing. They consistently do an outstanding job. I had my most recent service done today, and the technician, Sabrina McIntyre, was no exception. She was prompt and efficient and carefully explained everything she checked. I was highly satisfied with her work. "

Steve M on November 2025


Avatar for Air Comfort Service Inc

Air Comfort Service Inc

4.81(
875
)

Air Comfort Service Inc

4.81(
875
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Since 1969, we have been treating homes and businesses as is they were our own. We've received the Angie's List Super Service Award every year since it began being awarded in 2005 and are proud of the relationships and reputation we have built with our customers. We service, repair, maintain, and install residential and commercial heating and cooling equipment, humidifiers, air cleaners, water heaters and more. Air Comfort Service, Inc. is family owned and operated with locations in both St. Louis and St. Charles counties. We look forward to the opportunity to make your home or business more comfortable and energy efficient.

"They are good."

Laura C on April 2023

Since 1969, we have been treating homes and businesses as is they were our own. We've received the Angie's List Super Service Award every year since it began being awarded in 2005 and are proud of the relationships and reputation we have built with our customers. We service, repair, maintain, and install residential and commercial heating and cooling equipment, humidifiers, air cleaners, water heaters and more. Air Comfort Service, Inc. is family owned and operated with locations in both St. Louis and St. Charles counties. We look forward to the opportunity to make your home or business more comfortable and energy efficient.

"They are good."

Laura C on April 2023


Avatar for Siefert Mechanical - Heating & Cooling

Siefert Mechanical - Heating & Cooling

5.00(
43
)

Siefert Mechanical - Heating & Cooling

5.00(
43
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Specializing in new system installs, System replacement, indoor air quality products such as humidifiers, EAC electronic air cleaners, ductless systems (mini splits) & Wi-fi thermostats. Providing both light commercial & residential service in St. Louis! Our #1 priority is your satisfaction!

"I previously worked with another company to replace my furnace. The first company was extremely flakey and would constantly cancel my appointments or simply not show up. Eventually, I decided to go on Angie's List, and I found Siefert Mechanical. This company was extremely quick to get to my house, give me an estimate, and then perform the service. Not only did Siefert Mechanical quote me a price that was $600 less than the first company, they also never cancelled or missed an appointment. They came out once to give me a quote, then the very next time they came out to my house, they replaced my furnace. The quality of their work is extremely professional, and I would HIGHLY recommend this company for any heating/cooling service you need performed."

Aaron C on January 2021

Specializing in new system installs, System replacement, indoor air quality products such as humidifiers, EAC electronic air cleaners, ductless systems (mini splits) & Wi-fi thermostats. Providing both light commercial & residential service in St. Louis! Our #1 priority is your satisfaction!

"I previously worked with another company to replace my furnace. The first company was extremely flakey and would constantly cancel my appointments or simply not show up. Eventually, I decided to go on Angie's List, and I found Siefert Mechanical. This company was extremely quick to get to my house, give me an estimate, and then perform the service. Not only did Siefert Mechanical quote me a price that was $600 less than the first company, they also never cancelled or missed an appointment. They came out once to give me a quote, then the very next time they came out to my house, they replaced my furnace. The quality of their work is extremely professional, and I would HIGHLY recommend this company for any heating/cooling service you need performed."

Aaron C on January 2021


Avatar for Schaeffer Electric Company Inc

Schaeffer Electric Company Inc

4.91(
222
)

Schaeffer Electric Company Inc

4.91(
222
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

No subs. Costs is determined by the job. Travel charges apply. No extra charge for after-hours service. For After Hour Emergency Service Needed - please contact Charlie Schaeffer at 314-581-7350 . Additional DBA - Royal Electric Co, Schaeffer Electric Co. Additional contact name - Daniel G. Schaeffer, Valerie Camden, Ken Kelley. Additional phone - (314) 815-3225. Additional e-mail - [email protected]. See website for additional contact names, phones & e-mails. Award winning. FOR AFTER HOUR EMERGENCY SERVICE AND WEEKEND SERVICE NEEDED, PLEASE CONTACT CHARLIE SCHAEFFER AT 314-581-7350.

"They did a beautiful job! They arrive on time and clean after themselves."

ROBERT D on May 2019

No subs. Costs is determined by the job. Travel charges apply. No extra charge for after-hours service. For After Hour Emergency Service Needed - please contact Charlie Schaeffer at 314-581-7350 . Additional DBA - Royal Electric Co, Schaeffer Electric Co. Additional contact name - Daniel G. Schaeffer, Valerie Camden, Ken Kelley. Additional phone - (314) 815-3225. Additional e-mail - [email protected]. See website for additional contact names, phones & e-mails. Award winning. FOR AFTER HOUR EMERGENCY SERVICE AND WEEKEND SERVICE NEEDED, PLEASE CONTACT CHARLIE SCHAEFFER AT 314-581-7350.

"They did a beautiful job! They arrive on time and clean after themselves."

ROBERT D on May 2019


Morgner Air Conditioning & Heating Inc

4.97(
67
)

Morgner Air Conditioning & Heating Inc

4.97(
67
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family-owned Morgner Inc. Air Conditioning and Heating has been providing air conditioning and heating sales, service and installation to Saint Louis and surrounding communities for over 40 years. Don Morgner started the business in 1965 and became a Lennox dealer in 1966, purchasing Binkley Heating & Sheet Metal in Webster Groves in 1971. The business then moved to its present location on S. Brentwood Blvd. in 1989.

"Perfect as expected"

KATHERINE H on June 2018

Family-owned Morgner Inc. Air Conditioning and Heating has been providing air conditioning and heating sales, service and installation to Saint Louis and surrounding communities for over 40 years. Don Morgner started the business in 1965 and became a Lennox dealer in 1966, purchasing Binkley Heating & Sheet Metal in Webster Groves in 1971. The business then moved to its present location on S. Brentwood Blvd. in 1989.

"Perfect as expected"

KATHERINE H on June 2018

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Heating and Air Conditioning questions, answered by experts

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

Your AC might not cool after a power outage because of a tripped circuit breaker, blown fuse, or damage to the compressor or capacitor. If you notice your AC not working after a power outage, in most cases, the breaker has tripped or the system has built-in brownout and blackout protection. Reboot the AC by turning it off at the thermostat, resetting the circuit breaker, and waiting 30 minutes to turn the AC on again. 

The right type of HVAC system will depend on several factors, including your climate, budget, preferences, and existing HVAC setup. For example, if you live in an area that experiences extreme weather, then a split system would likely be the best option. Or, if budget is a concern, consider installing a ductless system in just one room.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

There are plenty of different not-so-great sounds to hear from your air conditioning unit, like squealing, grinding, water running, excessive gurgling, banging, and clanking. Each of these sounds can indicate a different malfunction with your unit, so it’s important to have a professional assess the problem before it gets worse.

The Saint Louis, MO homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.