AC Repair St. Louis

Top Air Conditioner Repair in St. Louis

Get 3 FREE AC Repair quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best deal.

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

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  • Averill Heating & Air Conditioning
    4.9
    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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  • 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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  • 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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  • Harster Heating & Air Conditioning
    4.5
    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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Frequently Asked Questions About AC Repair

Is your AC unit not cooling properly? Are you hearing strange noises or noticing unusual smells? Find answers to common questions about AC repair and connect with qualified HVAC technicians in USA.

How do I choose the right size AC unit for my home?

Choosing the correct AC unit size is crucial for energy efficiency and adequate cooling. An undersized unit will run constantly, struggling to cool your home, while an oversized unit will cycle on and off frequently, wasting energy and shortening its lifespan. Factors that determine AC size include the square footage of your home, insulation levels, climate zone, window size and efficiency, number of occupants, and heat-generating appliances. Don't guess! Consult an HVAC technician to perform a Manual J load calculation to determine the precise cooling capacity your home needs.

How can I improve my AC's energy efficiency?

Boosting your AC's energy efficiency can lead to significant savings. Consider these tips:
  • Regular maintenance:
  • Schedule professional tune-ups at least once a year to optimize performance.
  • Programmable thermostat:
  • Automate temperature adjustments based on your schedule.
  • Seal air leaks:
  • Caulk and weatherstrip windows and doors to reduce air leakage.
  • Proper insulation:
  • Ensure adequate insulation to minimize heat transfer.
  • Ventilation:
  • Improve ventilation to remove excess heat and humidity.
  • Energy-efficient appliances:
  • Choose appliances with the Energy Star label to reduce overall energy load.
  • HVAC zoning:
  • Consider zoning to independently cool different areas.

What are the signs of a bad AC compressor?

The compressor is a vital component of your AC system, and its failure can be a major headache. Watch out for these signs of a failing compressor:
  • Loud noises:
  • Unusual sounds like clanking, grinding, or rattling from the outdoor unit indicate potential problems with the compressor.
  • Warm air from vents:
  • If the air from the vents isn't cool, it could mean the compressor isn't functioning properly.
  • Reduced cooling capacity:
  • Your AC unit may be running constantly, but the house doesn't cool down as it should.
  • Refrigerant leaks:
  • Leaks can occur at the compressor and lead to reduced cooling efficiency.
  • Tripping circuit breaker:
  • A failing compressor can draw excess current, causing the breaker to trip repeatedly.
If you suspect compressor issues, call a qualified HVAC technician for diagnosis and repair or replacement options.

How do I find a qualified AC repair technician?

Finding a trustworthy AC repair technician requires careful consideration. Start by asking for recommendations from friends, family, neighbors, or colleagues. Check online reviews and ratings on platforms like Google, Yelp, and Checkatrade. Verify that the technician is licensed, insured, and certified (e.g., NATE-certified). Get multiple quotes from different technicians and compare pricing and services. Ask about their experience, warranties, and availability for emergency repairs. A professional technician will be able to diagnose your AC problem accurately and provide efficient solutions. You can also use HVACCompaniesHub to find and compare AC repair specialists in your local area.

How do I choose the right size AC unit for my home?

Choosing the correct AC unit size is crucial for energy efficiency and adequate cooling. An undersized unit will run constantly, struggling to cool your home, while an oversized unit will cycle on and off frequently, wasting energy and shortening its lifespan. Factors that determine AC size include the square footage of your home, insulation levels, climate zone, window size and efficiency, number of occupants, and heat-generating appliances. Don't guess! Consult an HVAC technician to perform a Manual J load calculation to determine the precise cooling capacity your home needs.

How can I improve my AC's energy efficiency?

Boosting your AC's energy efficiency can lead to significant savings. Consider these tips:
  • Regular maintenance:
  • Schedule professional tune-ups annually to optimize performance.
  • Programmable thermostat:
  • Automate temperature adjustments to save energy when you're away or asleep.
  • Seal air leaks:
  • Caulk and weatherstrip windows and doors to reduce air leakage.
  • Proper insulation:
  • Ensure adequate insulation to minimize heat transfer.
  • Ventilation:
  • Improve ventilation to remove excess heat and humidity.
  • Energy-efficient appliances:
  • Choose appliances with the Energy Star label to reduce overall energy load.
  • HVAC zoning:
  • Consider zoning to independently cool different areas.

What are the signs of a bad AC compressor?

The compressor is a vital component of your AC system, and its failure can be a major headache. Watch out for these signs of a failing compressor:
  • Loud noises:
  • Unusual sounds like clanking, grinding, or rattling from the outdoor unit indicate potential problems with the compressor.
  • Warm air from vents:
  • If the air from the vents isn't cool, it could mean the compressor isn't functioning properly.
  • Reduced cooling capacity:
  • Your AC unit may be running constantly, but the house doesn't cool down as it should.
  • Refrigerant leaks:
  • Leaks can occur at the compressor and lead to reduced cooling efficiency.
  • Tripping circuit breaker:
  • A failing compressor can draw excess current, causing the breaker to trip repeatedly.
Don't ignore signs of a failing compressor, address them promptly.

How do I find a qualified AC repair technician?

Finding a trustworthy AC repair technician requires careful consideration. Start by asking for recommendations from friends, family, neighbors, or colleagues. Check online reviews and ratings on platforms like Google, Yelp, and Checkatrade. Verify that the technician is licensed, insured, and certified (e.g., NATE-certified). Get multiple quotes from different technicians and compare pricing and services. Ask about their experience, warranties, and availability for emergency repairs. A professional technician will be able to diagnose your AC problem accurately and provide efficient solutions. You can also use HVACCompaniesHub to find and compare AC repair specialists in your local area.