HVAC Companies Missouri

Best AC and Heating Services in Missouri

Receive multiple HVAC Companies quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best service.

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  • G
    5
    St. Louis, US

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  • Ca
    5
    St. Louis, US

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  • Averill Heating & Air Conditioning
    4.9
    St. Louis, US

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  • De
    4.9
    St. Louis, US

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  • Emerson
    3.8
    St. Louis, US

    Emerson is a global technology, software and engineering powerhouse driving innovation that makes the world healthier, safer, smarter and more sustainable.

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  • Mo
    4.6
    St. Louis, US

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  • Hu
    5
    St. Louis, US

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  • Welsch Heating & Cooling
    4.5
    St. Louis, US

    FAMILY AND LOCALLY OWNED SINCE 1895. We strive to be the most TRUSTED Heating and Air Conditioning Company in the St. Louis/St. Charles area with over 127 years of experience. 24-hour service, 7 days a week. Repair, optimize, or check your system. Any Brand, Any System. We service all brands! Request Service Request Estimate. Specials on Heating and Cooling Complete Systems. Save up to $1,600 back! Specials. Get it Fixed By Expert Technicians. Call anytime for home or business! Services. Living Up to Our Commitment. See what made us a national winner! Reviews. What We Offer.

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  • Harster Heating & Air Conditioning
    4.5
    St. Louis, US

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  • Am
    4
    St. Louis, US

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Frequently Asked Questions About HVAC Companies

Find answers to common questions about HVAC services, finding contractors, and getting the best HVAC systems for your needs.

What type of HVAC system is best for my home?

The best HVAC system for your home depends on several factors, including your:
  • Climate: Heat pumps are generally more efficient in moderate climates, while furnaces are better for colder regions.
  • Budget: The upfront cost of different systems can vary significantly.
  • Energy Efficiency Goals: Higher-efficiency systems are usually more expensive upfront but result in lower energy bills over time.
  • Home Size and Layout: The square footage and layout of your home affect the system's capacity and ductwork requirements.
  • Existing Ductwork: If you have existing ductwork, you'll need a system compatible with it.
A qualified HVAC contractor can assess your needs and recommend the best HVAC system for your property.

How do I find a good HVAC company near me?

Finding a reputable HVAC company requires research. Consider these tips:

  • Check Online Reviews: Look for HVAC companies with positive reviews and high ratings on platforms like Google, Yelp, and others.
  • Ask for Referrals: Reach out to friends, family, neighbors, or colleagues for recommendations.
  • Verify Licensing and Insurance: Ensure the company is properly licensed and insured to operate in your area.
  • Look for Certifications: Check for certifications from reputable organizations like NATE (North American Technician Excellence).
  • Compare Quotes: Get quotes from multiple HVAC companies to compare pricing and services.
  • Use a Directory like HVACCompaniesHub: Simplify your search by using our directory of pre-screened and qualified HVAC professionals.

What are the signs my air conditioner needs refrigerant?

Low refrigerant levels can cause various problems with your air conditioner:
  • Warm Air: The most noticeable sign is that the AC is blowing warm or not cool air.
  • Ice Buildup: Ice may form on the refrigerant lines or evaporator coil.
  • Increased Energy Bills: Your system has to work harder to cool, leading to higher energy consumption.
  • Hissing or Bubbling Sounds: These sounds can indicate a refrigerant leak.
If you suspect low refrigerant, contact an HVAC technician to diagnose the issue and recharge the system.

How can I tell if my furnace filter needs changing?

Here are some signs your furnace filter needs changing (remember to change it every 1-3 months):
  • Reduced Airflow: Noticeably weaker airflow from your vents.
  • Dusty Vents: Dust accumulation around your vents.
  • Increased Dust: More dust than usual in your home.
  • Allergies or Respiratory Issues: Worsening allergy symptoms or respiratory problems.
  • Higher Energy Bills: A dirty filter restricts airflow, forcing your furnace to work harder.
  • Overheating: The system overheats due to restricted airflow.
Check your filter monthly and change it as needed to keep your system running efficiently.

What type of HVAC system is best for my home?

The best HVAC system for your home is unique to your situation, including your:
  • Climate: Heat pumps are generally more efficient in moderate climates, while furnaces are better for colder regions.
  • Budget: The upfront cost of different systems can vary significantly.
  • Energy Efficiency Goals: Higher-efficiency systems are usually more expensive upfront but result in lower energy bills over time.
  • Home Size and Layout: The square footage and layout of your home affect the system's capacity and ductwork requirements.
  • Existing Ductwork: If you have existing ductwork, you'll need a system compatible with it.
A qualified HVAC contractor can assess your needs and recommend the best heating and cooling system for your property.

How do I find a good HVAC company near me?

Finding a reputable HVAC company requires research. Consider these tips:

  • Check Online Reviews: Look for HVAC companies with positive reviews and high ratings on platforms like Google, Yelp, and others.
  • Ask for Referrals: Reach out to friends, family, neighbors, or colleagues for recommendations.
  • Verify Licensing and Insurance: Ensure the company is properly licensed and insured to operate in your area.
  • Look for Certifications: Check for certifications from reputable organizations like NATE (North American Technician Excellence).
  • Compare Quotes: Get quotes from multiple HVAC companies to compare pricing and services.
  • Use a Directory like HVACCompaniesHub: Simplify your search by using our directory of pre-screened and qualified HVAC professionals.

What are the signs my air conditioner needs refrigerant?

Low refrigerant levels can cause various problems with your air conditioner:
  • Warm Air: The most noticeable sign is that the AC is blowing warm or lukewarm air.
  • Ice Buildup: Ice may form on the refrigerant lines or evaporator coil.
  • Increased Energy Bills: Your system has to work harder to cool, leading to higher energy consumption.
  • Hissing or Bubbling Sounds: These sounds can indicate a refrigerant leak.
If you suspect low refrigerant, contact an AC repair specialist to fix the leak and add refrigerant.

How can I tell if my furnace filter needs changing?

You should change your furnace filter regularly, typically every 1-3 months, or more often if you have pets or allergies. Here are some signs your filter needs changing:
  • Reduced Airflow: Noticeably weaker airflow from your vents.
  • Dusty Vents: Dust accumulation around your vents.
  • Increased Dust: More dust than usual in your home.
  • Allergies or Respiratory Issues: Worsening allergy symptoms or respiratory problems.
  • Higher Energy Bills: A dirty filter restricts airflow, forcing your furnace to work harder.
  • Overheating: The system overheats due to restricted airflow.
Check your filter monthly and change it as needed to keep your system running efficiently.