We Have The Tools To Keep You Cool

Service You Can Trust

Welcome to Lex Air, your go-to expert for all your air conditioning repair needs!  With our team of highly trained and experienced technicians, you can trust that we’ll diagnose and fix your AC system quickly and efficiently. 

Our commitment to outstanding customer service and timely response ensures that you’ll never be left sweating in the heat.

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AC Repair in Carrollton, Dallas & North Texas | Fast, Reliable Service

When your air conditioner breaks down in the middle of a Texas summer, you need help fast. LEX Air Conditioning has been providing expert AC repair services to Carrollton, Dallas, and the surrounding North Texas communities for three generations. Our NATE-certified technicians arrive with fully stocked trucks, ready to diagnose and fix your cooling system the same day you call. Whether you’re dealing with a complete system failure, weak airflow, or strange noises coming from your unit, we’ve got you covered with honest pricing and no-hassle service.

Signs Your Air Conditioner Needs Professional Repair

Recognizing early warning signs can prevent small issues from becoming expensive emergency repairs. Contact LEX Air if you notice any of these common AC problems:
  • Warm or inconsistent airflow — Your system may have low refrigerant, a failing compressor, or restricted airflow due to dirty filters or ductwork issues.
  • Unusual noises — Grinding, squealing, banging, or clicking sounds often indicate loose components, motor problems, or debris in the system.
  • Higher than normal energy bills — A sudden spike in electricity costs typically means your AC is working harder than it should due to a mechanical issue.
  • Frequent cycling — If your system turns on and off repeatedly (short cycling), it may have an oversized unit, thermostat problems, or refrigerant issues.
  • Water leaks or excess moisture — Pooling water around your indoor unit could signal a clogged condensate drain or frozen evaporator coil.
  • Bad odors from vents — Musty smells may indicate mold in your ductwork, while burning odors could point to electrical issues requiring immediate attention.
  • Ice on refrigerant lines — Frozen lines typically result from airflow restrictions or low refrigerant levels and should be addressed promptly.
If you’re experiencing any of these symptoms, don’t wait for a complete breakdown. Call LEX Air at (469) 240-2628 for same-day AC repair service in the Dallas-Fort Worth metroplex.

Our AC Repair Process: What to Expect

At LEX Air, we believe in transparent, straightforward service. Here’s what happens when you call us for AC repair:

1. Schedule Your Service Call

Call us or book online, and we’ll dispatch a technician to your home — often the same day. We provide a specific arrival window so you’re not waiting around all day.

2. Comprehensive System Diagnosis

Our technician will perform a thorough inspection of your entire cooling system, including the indoor and outdoor units, thermostat, electrical connections, refrigerant levels, and airflow. We use advanced diagnostic tools to pinpoint exactly what’s causing your problem.

3. Upfront Pricing — No Surprises

Before any work begins, we’ll explain what we found, what needs to be repaired, and provide you with a clear, written estimate. You’ll know exactly what you’re paying for, and we won’t proceed until you approve the repair.

4. Expert Repair with Quality Parts

Our trucks are stocked with the most common AC parts, so most repairs can be completed in a single visit. As a Trane Comfort Specialist, we use manufacturer-approved components and follow industry best practices for every repair.

5. Testing and Verification

After completing the repair, we test your system thoroughly to make sure it’s running efficiently and cooling your home properly. We’ll also share tips to help you maintain your system and prevent future problems.

Lex Air Mascot

Complete Air Conditioning Services for North Texas Homes

LEX Air offers a full range of residential cooling services to keep your home comfortable year-round:

  • AC Repair — Fast, reliable repairs for all makes and models, including central air systems, heat pumps, and ductless mini-splits.
  • AC Installation & Replacement — Professional installation of new high-efficiency systems, properly sized for your home using Manual J load calculations.
  • AC Tune-Ups & Maintenance — Preventive maintenance that extends equipment life, improves efficiency, and catches small problems before they become costly repairs.
  • Ductless Mini-Split Systems — Ideal for room additions, garages, or homes without existing ductwork.
  • Indoor Air Quality Solutions — Air scrubbers, whole-house humidifiers/dehumidifiers, and duct cleaning to improve the air you breathe.
  • Thermostat Installation — Smart thermostat upgrades for better comfort control and energy savings.

Why Carrollton & Dallas Homeowners Choose LEX Air

  • Three Generations of Service Excellence — We’re a family-owned business with deep roots in the North Texas community. Our reputation is built on trust, not gimmicks.
  • 1,900+ Five-Star Reviews — With a 4.8-star rating across Google, Facebook, and other platforms, our customers consistently praise our professionalism, honesty, and quality work.
  • Trane Comfort Specialist — We’re factory-trained and authorized to service and install Trane equipment — one of the most reliable HVAC brands on the market.
  • Licensed, Insured & Background-Checked Technicians — Every technician on our team is fully licensed (TACLA38788C), insured, and has passed background checks for your peace of mind.
  • Upfront, Honest Pricing — No hidden fees, no pressure tactics. We provide written estimates before starting work and stand behind our repairs.
  • Same-Day & Emergency Service — AC emergencies don’t wait, and neither do we. Call us for priority service when you need it most.
  • Flexible Financing Options — Major repairs and replacements are more affordable with our financing programs.
  • Cool Club Maintenance Plan — Join our maintenance program for priority scheduling, discounts on repairs, and annual tune-ups that keep your system running efficiently.

AC Repair Service Areas in Dallas-Fort Worth

LEX Air Conditioning proudly serves homeowners throughout the Dallas-Fort Worth metroplex. Our service area includes:

Primary Service Areas: Carrollton, Dallas, Plano, Frisco, Richardson, Lewisville, Flower Mound, The Colony, Coppell, Irving, Farmers Branch, Addison, Highland Park, University Park, McKinney, Allen, and Garland.

Extended Service Areas: Fort Worth, Arlington, Grand Prairie, Grapevine, Southlake, Colleyville, Keller, Roanoke, Little Elm, Prosper, Wylie, Rockwall, Rowlett, Mesquite, and surrounding communities.

ZIP Codes We Serve: 75001, 75006, 75007, 75010, 75019, 75024, 75025, 75034, 75035, 75038, 75039, 75056, 75057, 75062, 75063, 75067, 75068, 75070, 75071, 75074, 75075, 75080, 75081, 75082, 75093, 75094, 75204, 75205, 75206, 75209, 75214, 75219, 75220, 75225, 75229, 75230, 75231, 75234, 75235, 75240, 75243, 75248, 75252, 75254, 75287, and more.

Not sure if we service your area? Give us a call at (469) 240-2628 — chances are, we do!

Frequently Asked Questions About AC Repair

How much does AC repair cost in Dallas?

AC repair costs vary depending on the issue. Minor repairs like capacitor or contactor replacement typically range from $150–$400, while more complex repairs involving compressors or refrigerant leaks can cost $500–$1,500 or more. At LEX Air, we provide upfront pricing before starting any work, so you’ll never be surprised by your bill.

How quickly can you get to my home?

We offer same-day service for most AC repair calls in the Carrollton and Dallas areas. For true emergencies during extreme heat, we prioritize getting a technician to your home as quickly as possible — often within a few hours.

Should I repair or replace my air conditioner?

As a general rule, if your AC is more than 10–15 years old and the repair costs exceed 50% of the price of a new system, replacement is usually the better investment. Older systems also use R-22 refrigerant (Freon), which is no longer manufactured and increasingly expensive. Our technicians can help you weigh the costs and benefits of repair vs. replacement for your specific situation.

Why is my AC running but not cooling?

Common causes include low refrigerant levels, a dirty air filter restricting airflow, a frozen evaporator coil, a malfunctioning compressor, or a faulty thermostat. Sometimes the outdoor condenser unit is blocked by debris or vegetation. We recommend checking your filter first — if that’s not the issue, call us for a professional diagnosis.

Do you offer emergency AC repair?

Yes! We understand that AC failures often happen at the worst possible times. LEX Air provides emergency repair services throughout the Dallas-Fort Worth area. Call us at (469) 240-2628, and we’ll work to get your cooling restored as quickly as possible.

How often should I have my AC serviced?

We recommend having your air conditioning system professionally maintained at least once a year, ideally in the spring before the summer cooling season begins. Regular maintenance improves efficiency, extends equipment life, and helps prevent unexpected breakdowns. Our Cool Club Maintenance Plan makes it easy to stay on schedule.

What brands of air conditioners do you repair?

Our technicians are trained to repair all major AC brands, including Trane, Carrier, Lennox, Rheem, Goodman, York, American Standard, Bryant, Amana, Daikin, and more. As a Trane Comfort Specialist, we have particular expertise with Trane systems, but we’re equipped to handle whatever equipment is in your home.

Schedule Your AC Repair Today

Don’t suffer through another day without reliable cooling. Whether you need a quick repair or want a second opinion on a major issue, LEX Air Conditioning is here to help. Call us at (469) 240-2628 or use our online scheduling tool to book your appointment. With three generations of experience, over 1,400 five-star reviews, and a commitment to honest service, you can trust LEX Air to keep your home comfortable all year long.

residential electrical repair