A recent A/C installation in Carrollon, TX

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Residential & Commercial HVAC

Lex Air Conditioning and Heating is a family owned and operated Heating, Ventilation, and Air Conditioning (HVAC) company based in Carrollton, TX.

Cory and Anthony Contreras are Co-Owners and have provided reliable HVAC services to Dallasites for over twenty years, first learning the craft from their father. The brothers and a team of contractors now serve residents and light commercial businesses from a central office right off I-35, allowing for fast service to all of Carrollton, Addison and North Texas.

Same-day home and business installation, replacement, maintenance and repair of all major air conditioning, furnace, air handler, and heat pump brands is available throughout our service areas.

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  • Lex Air Conditioning repairs A/C units 24/7 & during scheduled maintenance calls.

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  • When it comes to your air conditioning equipment, it is essential that it receives regular maintenance and service.

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  • Lex Air provides A/C replacement services to residents throughout Dallas Fort-Worth

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  • Often, we think of the air in our homes as being too hot or too cold. Rarely do we think about moisture - too humid or dry, air circulation or even air quality. Indoor Air Quality includes all of these areas.

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  • Needing a quick repair on your furnace? We repair, maintain and replace furnaces all throughout Dallas.

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  • Lex Air Conditioning and Heating is ready to meet all of your heating and cooling needs at your place of business.

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  • Lex Air is a full service, residential A/C installation, repair and maintenance company

    Whether you are in need of emergency air conditioning repair or just want to schedule routine maintenance, licensed A/C technicians will travel to your home anywhere within the Dallas Fort-Worth Metroplex to solve any residential HVAC need.

    Home Cooling Services Include:

    • Emergency Central Cooling repair, 24/7
    • Same day A/C installation when possible
    • Repair and maintenance on all major brands and manufacturers
    • Removal and disposal of old A/C systems and equipment
    • Routine maintenance during peak season for optimum performance
    • Indoor air quality tests and installation of air cleansing systems

    The Lex Air Guarantee

    We promise that a residential comfort system properly serviced and maintained by Lex Air will bring the following to your family and household:

    • Safety – Lex Air will keep your central air system clean and prevent a breakdown with routine monitoring of mechanical and electrical components, ensuring your home and family are safe.
    • Efficiency – Older systems are not very efficient by today’s standards and need routine maintenance at the very least. It can often be more cost-effective to upgrade to a newer system altogether. New A/C comfort systems are designed to use less energy, but these efficiencies are rated when the entire system is compatible and in optimum condition. Working with Lex Air’s certified HVAC technicians helps keep electric bills lower and saves the environment.
    • Comfort – Clean filters, coils, and air handlers will keep your house as comfortable as possible. Newer high-efficiency Trane systems installed by Lex Air will also increase comfort levels by using 2-stage compressors, variable-speed fans, and humidity control.
    • Indoor Air Quality – Dirty system components will negatively impact the indoor air quality of your home, and therefore the well-being of your family. This is especially true in newer homes where less fresh air enters the home due to more stringent building practices and standards. There are multiple ways to improve the indoor air quality of a home; fortunately, Lex Air is skilled in installation of multiple systems and smart/digital technologies.
    • Longevity – A residential comfort system is a significant investment, impacting electrical costs, health and mood. Taking care of a heating or cooling system, with all of its components is in your best interest as a homeowner. We take our work seriously, and look forward to providing a clean and well-maintained system that will outlive expectations and provide comfort to your family for years to come.

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Certified HVAC Contractors

Cory and Anthony Contreras, plus a team of HVAC contractors are certified by the Texas Department of Licensing and Regulation for Air Conditioning. In addition to being licensed, we are bonded and insured and all technicians receive background checks.

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Emergency AC Repairs

We know Dallas is a hot place to live, so hot that we can’t stand the thought of you living without an air conditioner at 3 am. Speak with a Lex Air employee 24/7 and get an emergency A/C repair, anywhere in Dallas at any time of the day or night!

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Top Rated A/C Contractor

Earning rave reviews from customers in Carrollton and Addison to Lewisville and more, Lex Air Conditioning and Heating will continue providing the service you expect and deserve.

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Hear From Real Customers

Just want to tell y’all about a great experience I had buying a new Trane air conditioner for my house in Carrollton, TX.

Homeowner in Carrollton, TX

Anthony answered my call at 7 am on a Saturday morning and scheduled the service for a few hours later. A technician arrived as scheduled and was very knowledgeable, courteous and answered any questions we had.

Homeowner in Coppell, TX

Hot August Night. Called Lex Air and the owner, Cory, came out and inspected the AC unit.  It was on a Saturday.  He came within 30 minutes of receiving our call.

Landlord in Addison, TX

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  • Top 10 Reasons to Choose Lex Air Conditioning and Heating

    1. Free estimates and quotes on air conditioning and heating installations.
    2. Same day service and installation throughout DFW
    3. 24-hour and 7-days-a-week HVAC services
    4. No additional fees for overtime work
    5. Extended labor warranties
    6. Telephone support available during operating hours
    7. State-registered technicians
    8. Texas-licensed business with full insurance
    9. Reliable and trustworthy service
    10. Family owned business operating for multiple generations
  • FAQ 1: Should I Be Worried if My Air Conditioner is Running Continuously?

    On extremely hot days this may not necessarily indicate a problem. A properly sized unit should cycle off and on periodically. If you notice your system is running longer than it usually does or if it runs for extended periods of time without improving comfort, you most likely have a problem that can be solved through an A/C repair with a qualified technician. If you do feel there is a problem, the best plan of action is to turn off the system and call Lex Air Conditioning and Heating.

  • FAQ 2: What Size A/C Unit Should I Buy?

    The size of an A/C unit needed depends on a number of factors. Size of the area to be conditioned, desired temperature, quality of insulation, and number of windows are just a few examples. While experience and rules of thumb can be useful tools, the only proper way to capture a true picture of the heat loss and heat gain of a structure is to perform a survey and load calculation. To determine the right size unit for your home or business, you may wish to call for a free inspection from Lex Air Conditioning and Heating.

  • FAQ 3: Does An Air Conditioner Impact Indoor Air Quality?

    Yes, a dirty unit can have a negative impact on your indoor air quality. If your unit is dirty, the air will be dirty after it leaves the unit. This can have an impact on your health and the health of your family and pets.

  • FAQ 4: Should I Repair my Old A/C Unit or Replace It?

    The answer to this question typically depends upon the age of your current unit and the needed repair. If your current unit is relatively new, you may be able to replace the part that is broken. If your unit is older it may not be very efficient, or the cost of the repair might exceed the value of your existing system. After repairing an older unit, you may be forced to spend more money on frequent repairs in the future and high electricity costs. If this is the case, you may actually save money by investing in a new system. The professionals at Lex Air can help you make this determination.

  • FAQ 5: How Can I Save Money on A/C Repairs?

    The best way to avoid repairs is by ensuring that your unit is serviced regularly. This entails replacing filters on a regular basis and ensuring that coils and other components are clean. This will save you money on repairs, and your system will last longer as a result. Much like an automobile, an air conditioning and heating system will only give as much as it gets.

  • FAQ 6: What is a Maintenance Contract?

    At Lex Air, we have created Maintenance Contracts for our commercial and residential clients. We work with a number of large companies as well as mom and pop outfits and residences to ensure that their operating and service costs on their HVAC systems are as low as possible. To ensure constant quality, we work with these clients to arrange scheduled maintenance, inspections, and cleanings. Taking these steps in a timely manner results in fewer costly repairs. View a residential maintenance contract.