HVAC Companies O'Fallon

Best Heating and Cooling Services in O'Fallon

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

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  • Aire Serv of St. Louis
    5
    Not Found, St. Louis, 63101, US

    Aire Serv of St. Louis is a locally owned and operated HVAC company serving the St. Louis, MO area. We are dedicated to providing expert service, upfront pricing, and 24/7 customer service. Our team of experienced technicians is committed to delivering reliable and efficient HVAC solutions for both residential and commercial customers. We offer a wide range of services, including AC repair, heating repair, maintenance, and installation. At Aire Serv, we believe in the Neighborly Done Right Promise™, ensuring that our customers receive the highest quality service and support.

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  • Am
    4
    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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  • Martin-Jetco Heating and Air Conditioning
    4.9
    1327 West Lark Industrial Dr, Fenton, 63026, US

    Since 1964, Martin-Jetco Heating and Air Conditioning has been focused on delivering an amazing customer experience and the best heating and cooling services in St. Louis. Family-owned and operated, we've become the go-to company for all residential and commercial heating and cooling needs in St. Louis. All of our licensed and NATE-certified technicians are committed to providing an unrivaled customer experience. Unlike other companies who are in it to just make a buck, we won't sell you any product or service you don't truly need. When you work with our St. Louis HVAC company, we put your best interests first. As certified dealers of many of the industry’s leading brands, including York, Goodman, Daikin, Carrier, and Trane, you can rest easy knowing that we carry systems designed to last.

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  • HB
    3.7
    St. Louis, US

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  • Ai
    4.3
    St. Louis, US

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  • St. Louis Air Conditioning
    4.9
    Eustis, FL, 33 E. Golf Links Ave, 32726, US

    St. Louis Air Conditioning is a trusted HVAC company serving the Heart of Florida since 1959. We pride ourselves on our commitment to quality and reliability, offering air conditioning solutions from leading manufacturers. Our team of experts provides expert AC installation, air conditioning replacement, and maintenance services to keep your home or business comfortable throughout the year. With emergency service available on weekends and weekdays until 8 PM, you can count on us to keep you cool.

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  • Classic Aire Care
    4.8
    St. Louis, US

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  • Vi
    4.8
    St. Louis, US

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  • St
    5
    St. Louis, US

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Over 16,949+ HVAC Companies in our network

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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.

How often should I have my HVAC system serviced?

Regular HVAC maintenance is essential for optimal performance, energy efficiency, and extending the lifespan of your system. It's generally recommended to have your system serviced once in the spring and once in the fall. Regular maintenance typically includes cleaning, inspections, and tune-ups of key components.

How do I choose the right HVAC contractor?

Selecting a qualified HVAC contractor is essential for a smooth and hassle-free HVAC project. Here’s what to look for:
  • Experience: Choose a contractor with extensive experience in the HVAC industry, especially in the type of service you need.
  • Licensing and Insurance: Verify that the contractor is properly licensed and insured.
  • Certifications: Look for NATE (North American Technician Excellence) certification, which indicates a high level of technical competency.
  • Reputation: Check online reviews and ratings to assess the contractor's reputation and customer satisfaction levels.
  • References: Ask for references from past customers and contact them to inquire about their experience.
  • Estimates and Quotes: Get written estimates or quotes from multiple contractors to compare pricing and services.
  • Warranty Information: Ask about warranties on equipment and labor.
  • Communication: Effective communication is key. Choose a contractor who responds promptly and clearly answers your questions.
HVACCompaniesHub can help connect you with qualified HVAC contractors in your area.

How can I reduce my HVAC energy consumption?

You can reduce HVAC energy consumption and lower your bills by:
  • Regular Maintenance: Schedule annual HVAC maintenance to ensure your system is running at peak efficiency.
  • Programmable Thermostat: Use a programmable or smart thermostat to optimize temperature settings based on your schedule.
  • Seal Air Leaks: Caulk and weatherstrip windows and doors to prevent drafts.
  • Proper Insulation: Ensure adequate insulation in your attic, walls, and floors to prevent heat loss in winter and heat gain in summer.
  • Ventilation: Use fans strategically to circulate air and reduce reliance on AC.
  • Energy-Efficient Appliances: Choose energy-efficient appliances to reduce your overall energy load.
  • HVAC Zoning: Consider zoning your HVAC system to condition different areas of your home separately.

What are the benefits of a programmable thermostat?

A programmable thermostat allows you to set different temperatures throughout the day, lowering your utility bills when you are away from home or asleep. This can significantly reduce your energy costs and improve home comfort.

How often should I have my HVAC system serviced?

Regular HVAC maintenance is essential for optimal performance, energy efficiency, and extending the lifespan of your system. It's generally recommended to have your system serviced at least twice a year. Regular maintenance typically includes cleaning, inspections, and tune-ups of key components.

How do I choose the right HVAC contractor?

Selecting a qualified HVAC contractor is essential for a successful HVAC project. Here’s what to look for:
  • Experience: Choose a contractor with extensive experience in the HVAC industry, especially in the type of service you need.
  • Licensing and Insurance: Verify that the contractor is properly licensed and insured.
  • Certifications: Look for NATE (North American Technician Excellence) certification, which indicates a high level of technical competency.
  • Reputation: Check online reviews and ratings to assess the contractor's reputation and customer satisfaction levels.
  • References: Ask for references from past customers and contact them to inquire about their experience.
  • Estimates and Quotes: Get written estimates or quotes from multiple contractors to compare pricing and services.
  • Warranty Information: Ask about warranties on equipment and labor.
  • Communication: Effective communication is key. Choose a contractor who responds promptly and clearly answers your questions.
HVACCompaniesHub can help connect you with qualified HVAC contractors in your area.

How can I reduce my HVAC energy consumption?

You can reduce HVAC energy consumption and lower your bills by:
  • Regular Maintenance: Schedule annual HVAC maintenance to ensure your system is running at peak efficiency.
  • Programmable Thermostat: Use a programmable or smart thermostat to optimize temperature settings based on your schedule.
  • Seal Air Leaks: Caulk and weatherstrip windows and doors to prevent drafts.
  • Proper Insulation: Ensure adequate insulation in your attic, walls, and floors to prevent heat loss in winter and heat gain in summer.
  • Ventilation: Use fans strategically to circulate air and reduce reliance on AC.
  • Energy-Efficient Appliances: Choose energy-efficient appliances to reduce your overall energy load.
  • HVAC Zoning: Consider zoning your HVAC system to condition different areas of your home separately.

What are the benefits of a programmable thermostat?

A programmable thermostat allows you to schedule temperature changes throughout the day, lowering your utility bills when you are away from home or asleep. This can significantly reduce your energy costs and improve home comfort.