AC Replacement O'Fallon

Best New AC Unit in O'Fallon

Get multiple Air Conditioner Replacement quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best offer.

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  • NOOTER St. Louis
    4.6
    1500 South 2nd St., St. Louis, 63104, US

    NOOTER is a fully integrated turnkey construction, multi-craft, construction engineering and maintenance contractor, in the industrial and commercial sectors. With vast experience, a highly-skilled multi-craft labor force and unlimited geographical reach, we respond in real-time to vital projects or emergency situations, when and wherever needed. Our goals are your goals: to achieve and maintain outperforming production environments for the life of your facility.

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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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  • 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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  • 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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  • St. Louis HVAC
    1
    St. Louis, US

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  • Meyer Heating and Air
    4.9
    11134 Lindbergh Business Ct, St. Louis, 63123, US

    Meyer Heating and Air is a St. Louis-based HVAC company that provides expert services for residential and commercial properties. With years of experience in the industry, our team works on all makes and models of heating and cooling systems, offering installation, repair, maintenance, and general service. We help our customers in O'Fallon and surrounding areas, including Fenton, Arnold, Ballwin, St. Charles, Chesterfield, Sappington, and St. Louis, to ensure their HVAC systems run smoothly and efficiently. Our 24/7 emergency service means we're always available to help, and our team is dedicated to providing exceptional customer service and ensuring customer satisfaction.

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

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  • Classic Aire Care
    4.8
    St. Louis, US

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

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Frequently Asked Questions about AC Replacement

Considering a new AC unit? Learn more about AC replacement. We'll help you find the perfect cooling solution.

How do I know if I need a new AC unit?

Several signs indicate it's time to upgrade your air conditioner:
  • Age: If your AC unit is more than a decade old, it's probably less efficient.
  • Frequent Repairs: Constant repairs can be a sign of bigger problems to come.
  • High Energy Bills: An inefficient AC unit can drive up your energy costs.
  • Inconsistent Cooling: Uneven temperatures, poor airflow, or insufficient cooling indicate a problem.
  • Strange Noises: Unusual noises like clanging, hissing, or buzzing suggest mechanical problems.
  • Refrigerant Leaks: Refrigerant leaks require professional repair and are a sign that the unit may be failing.
If you notice these signs, get a professional AC inspection.

What are the different types of air conditioners?

There are several options of air conditioners to choose from:
  • Central AC Units: These systems cool your entire home using ductwork to distribute conditioned air. Central air systems can provide excellent comfort.
  • Ductless Mini-Splits: Best for homes without existing ductwork, these systems have indoor and outdoor units connected by refrigerant lines. They're quiet, efficient, and ideal for targeted area cooling.
  • Window AC Units: A good option for smaller spaces or apartments. They're relatively inexpensive but can be noisy and less efficient than other options.
  • Portable AC Units: These units can be moved easily and offer a flexible option for supplemental cooling in various rooms. Consider portability when access to windows might be difficult.
  • Heat Pumps: These systems can both provide year-round climate control. Heat pumps are energy-efficient, especially in mild to moderate climates.
  • Geothermal Heat Pumps: Geothermal heat pumps use ground temperature to heat and cool your home. Though they require a significant upfront investment, the long-term energy savings are substantial.
A qualified HVAC technician can assess your cooling needs and recommend the best cooling system for your specific requirements and budget.

How long does it take to replace an AC unit?

A typical AC replacement takes approximately 4 to 8 hours for a standard installation. Factors that might affect installation time include:
  • The size and type of AC unit: Larger, more complex systems will naturally require a longer installation.
  • The condition of existing ductwork (if applicable): Modifications or repairs to your ductwork can increase the time required.
  • Accessibility: The ease with which installers can access your HVAC equipment will help speed up the job.
  • Electrical work: If any electrical upgrades are required, the installation process may be longer.
Your chosen contractor will be able to give you a better idea of the timeframe after assessing your specific situation.

What questions should I ask when getting quotes for a new air conditioner?

When getting quotes for a new AC unit, ask contractors these important questions:
  • What size AC unit is right for my space? Don't let them guess - insist on a professional assessment of your home's heating and cooling needs.
  • What type of AC unit do you recommend, and why? Discuss different types of AC units (central air, ductless, heat pump), their pros and cons, and which one is best suited for your needs and budget.
  • What is the SEER rating of the unit you are proposing? A higher SEER rating means greater energy efficiency.
  • What is included in the installation cost? Be sure you have a clear understanding of what's included in the price.
  • What are the warranty terms for the AC unit and the installation? Understand the warranty coverage for both the equipment and labor before making a decision.
  • Do you offer financing options? Inquire about available financing plans if needed.
  • What is your process for installing a new AC? Discuss their installation process and what to expect during the installation.
  • Can you provide references from previous clients? Reputable contractors should be willing to provide references.
By being prepared with the right questions, you can make a more informed decision about your new AC.

How do I know if I need a new AC unit?

Several signs indicate it's time to replace your air conditioner:
  • Age: If your AC unit is 10-15 years old or older, it's likely nearing the end of its lifespan.
  • Frequent Repairs: Constant repairs can be a sign of bigger problems to come.
  • High Energy Bills: Rising utility bills can indicate a problem with your cooling system.
  • Inconsistent Cooling: Uneven temperatures, poor airflow, or insufficient cooling indicate a struggling AC unit.
  • Strange Noises: Unusual noises like grinding, squealing, or banging suggest mechanical problems.
  • Refrigerant Leaks: Refrigerant leaks require professional repair and are a sign that the unit may be failing.
If you notice these red flags, it's best to consult with a qualified HVAC technician.

What are the different types of air conditioners?

There are several options of air conditioners to choose from:
  • Central AC Units: Ideal for whole-home cooling using ductwork to circulate cool air. They're energy-efficient and provide consistent cooling throughout your home.
  • Ductless Mini-Splits: Best for homes without existing ductwork, these systems have indoor and outdoor units connected by refrigerant lines. They're quiet, efficient, and ideal for room additions or supplemental cooling.
  • Window AC Units: These are self-contained units designed to cool individual rooms. Window units are generally easy to install.
  • Portable AC Units: Similar to window units, but portable. Consider portability when access to windows might be difficult.
  • Heat Pumps: These systems can both provide year-round climate control. Heat pumps are energy-efficient, especially in mild to moderate climates.
  • Geothermal Heat Pumps: Geothermal heat pumps use the stable temperature of the earth to heat and cool your home. They are highly efficient, but the initial installation cost can be higher due to the need for ground loops.
A qualified HVAC technician can assess your cooling needs and recommend the best AC unit to match your home and your preferences.

How long does it take to replace an AC unit?

A typical AC replacement takes anywhere from a few hours to a full day, depending on the complexity of the installation.. Factors that might affect installation time include:
  • The size and type of AC unit: Larger, more complex systems will naturally take more time to install.
  • The condition of existing ductwork (if applicable): Modifications or repairs to your ductwork can increase the time required.
  • Accessibility: Easy access to your existing unit and the installation location will help speed up the job.
  • Electrical work: If any electrical upgrades are required, the timeline may be longer.
Your chosen contractor will be able to give you a better idea of the timeframe once they've inspected your home or business.

What questions should I ask when getting quotes for a new air conditioner?

When getting quotes for a new AC unit, ask contractors these important questions:
  • What size AC unit is right for my space? The contractor should perform a load calculation to determine the appropriate size unit.
  • What type of AC unit do you recommend, and why? Discuss different types of AC units (central air, ductless, heat pump), their pros and cons, and which one is best suited for your needs and budget.
  • What is the SEER rating of the unit you are proposing? A higher SEER rating indicates greater energy efficiency.
  • What is included in the installation cost? Be sure you have a clear understanding of what's included in the price.
  • What are the warranty terms for the AC unit and the installation? Understand the warranty coverage for both the equipment and labor before making a decision.
  • Do you offer financing options? Inquire about available financing plans if needed.
  • What is your process for installing a new AC? Understanding their process helps ensure a smooth experience.
  • Can you provide references from previous clients? Reputable contractors should be willing to provide references.
Getting multiple quotes and asking these key questions will help you compare options and choose the best AC replacement contractor for your needs.