A recent A/C repair job took us to Irving, TX

A/C & Heating Service in Dallas, TXTop Yelp Reviewedtrane comfort specialists

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 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 Dallas.

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.

Get a Quote on Your Next Project!

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

    More Info

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

    More Info

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

    More Info

  • 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.

    More Info

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

    More Info

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

    More Info

  • Lex A/C and Heating is a full service, Dallas heating and cooling installation, repair and maintenance company

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

    Home Heating Services Include:

    • Emergency Home Central Heating repair, 24/7
    • Same day furnace installation when possible
    • Repair and maintenance on all major brands and furnace manufacturers
    • Removal and disposal of old furnace systems and equipment
    • Routine maintenance during peak seasons 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 furnace system clean and prevent a breakdown with routine monitoring of mechanical and electrical components, helping keep your home and family 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 heating comfort systems are designed to use less energy, but these efficiencies are rated when the equipment is in optimum condition. Working with Lex Air’s certified heating technicians helps keep electric bills lower and saves the environment.
    • Comfort – Clean filters, coils, and heat exchangers will keep your house as comfortable as possible.  Newer high-efficiency 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.

    More Info


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.

View our License

Emergency AC Repairs

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!

Learn more about this service!

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.

Leave a Review!

Hear From Real Customers

I am one happy customer! I left a voicemail at 5:15pm on a Friday and within 3 hours my problem was resolved! Mind you it’s 103 degrees today & the first company I called said they’d be out around midnight!

Mona A, Homeowner

Anthony helped us install a new heater & air conditioner in our home in Carrollton, TX . They did a phenomenal job from beginning to end.

Lindsay J, Homeowner

What do you do when your heat goes out? ON NEW YEAR’S EVE!!! I called Lex Air and they showed up promptly to solve the problem! Thanks for keeping us warm!

Rob A, Landlord

Read Pro Tips in Our Blog