AC Replacement O'Fallon

Top 10 New AC Unit in O'Fallon

Get 3 FREE Central Air Replacement quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best offer.

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

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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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  • 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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  • 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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  • Classic Aire Care
    4.8
    St. Louis, US

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  • American Boiler & Mechanical
    4.5
    St. Louis, US

    American Boiler & Mechanical is a family-owned operation that has been providing boiler and mechanical services for over 50 years. Founded in 1973 by Harry Hemphill, the company has grown from a small office and shop in Fenton, MO to a 25,000 square foot headquarters in St. Louis, MO. With a fleet of 85-plus services vehicles, mobile welders, and all the necessary tools, American Boiler & Mechanical is equipped to handle any job, from re-tubing a boiler onsite to piping-in new equipment. While boilers will always be their specialty, their capabilities and expertise have grown over the years to include all mechanical aspects of manufacturing and industrial plant facilities, from basic plant maintenance to complete HVAC, boiler, and process piping replacements and expansions. They pride themselves on their history and look forward to serving their customers with the very best in boiler and mechanical services for the next half century and beyond!

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

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Frequently Asked Questions about AC Replacement

Find answers to common questions about replacing your air conditioner. We'll help you find the perfect cooling solution.

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 your warranty options before making a decision.
  • Do you offer financing options? Inquire about payment options 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.
Getting multiple quotes and asking these key questions will help you compare options and choose the best AC replacement contractor for your needs.

How often should I replace my AC filter?

Changing your AC filter is essential for maintaining a healthy home environment and ensuring the peak performance of your AC. Generally, it's recommended to replace your AC filter every 1-3 months. You might need to change your filter more often if you have:
  • Pets
  • Allergies
  • High dust levels in your home
  • Frequent use of the AC system
Check your filter monthly and replace it more often if it appears dirty or clogged.

What should I do if my AC breaks down?

If your AC breaks down, follow these steps::
  • Check for Obvious Issues: See if there are any easy fixes, like a clogged filter or power outage.
  • Turn Off the Unit: If you can't identify an easy solution, turn off your AC unit at the thermostat to prevent further damage.
  • Contact a Qualified HVAC Technician: Reach out to a licensed professional for repairs. If it's after hours, contact an emergency HVAC service.
  • Document the Problem: If possible, note any error codes or unusual behavior of the AC unit and take photos or videos of the problem to show the technician.
  • Prepare Questions: Make a list of questions for the technician to ensure you understand the problem, repair options, and costs.
Preventative HVAC services reduce the risk of emergency breakdowns. Get your system serviced regularly to maximize its lifespan and efficiency.

What are the signs of a refrigerant leak?

If you suspect a refrigerant leak in your air conditioner, look for these signs:
  • Warm air coming from the vents:
  • Ice on the evaporator coil or refrigerant lines:
  • Hissing or bubbling sounds from the AC unit:
  • Increased energy bills:
  • Sweet or oily odor near the AC unit:
If you notice any of these signs, it’s important to have your system inspected. Don't wait to fix a refrigerant leak. Prolonging use with a leak can lead to further and more significant issues.

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 indicates greater energy efficiency.
  • What is included in the installation cost? Ensure the quote includes all costs, such as permits, materials, labor, and removal of the old unit.
  • What are the warranty terms for the AC unit and the installation? Understand your warranty options before making a decision.
  • Do you offer financing options? Inquire about payment options 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 often should I replace my AC filter?

Changing your AC filter is essential for maintaining a healthy home environment and ensuring the efficient operation of your air conditioning system. Generally, it's recommended to replace your AC filter at least quarterly. However, several factors can influence how often you should change your filter, including:
  • Pets
  • Allergies
  • High dust levels in your home
  • Frequent use of the AC system
Set reminders to check your filters regularly.

What should I do if my AC breaks down?

In case of an AC breakdown, follow these steps::
  • Check for Obvious Issues: See if there are any easy fixes, like a tripped circuit breaker or a dirty air filter.
  • Turn Off the Unit: If you can't identify a quick fix, turn off your AC unit to avoid additional problems.
  • Contact a Qualified HVAC Technician: Call a reputable HVAC repair company to diagnose the issue and provide repair options. If it's after hours, contact an emergency HVAC service.
  • Document the Problem: If possible, note any error codes or unusual behavior of the AC unit and take photos or videos of the problem to show the technician.
  • Prepare Questions: Make a list of questions for the technician to ensure you understand the problem, repair options, and costs.
Preventative HVAC services reduce the risk of emergency breakdowns. Get your system serviced regularly to maximize its lifespan and efficiency.

What are the signs of a refrigerant leak?

Potential signs of a refrigerant leak include:
  • Warm air coming from the vents:
  • Ice on the evaporator coil or refrigerant lines:
  • Hissing or bubbling sounds from the AC unit:
  • Increased energy bills:
  • Sweet or oily odor near the AC unit:
If you notice any of these signs, it’s important to have your system inspected. Don't wait to fix a refrigerant leak. Continuing to operate a leaking AC unit can also damage the compressor, leading to even more expensive repairs.