Family-Owned Since 2004

About LEX Air Conditioning, Heating, Plumbing & Electrical

The Gold Standard of White Glove Service in Dallas-Fort Worth

22+ Years in Business
2,000+ 5-Star Reviews
24/7 Emergency Service
100% Satisfaction Guarantee
LEX Air Conditioning, plumbing, and Electrical

Licensed & Insured 2,000+ 5-Star Reviews Headquartered in Plano, TX Trane Comfort Specialist

Our Story

The roots of LEX trace back to 1990 and a company called AES — the foundation for what became a multigenerational, family-run business built on hard work and integrity. Since 2004, LEX has proudly served Plano, Frisco, Allen, McKinney, Carrollton, and the greater Dallas-Fort Worth metroplex.

What began as an HVAC company has grown into a full-service home comfort provider. Today, LEX offers dependable air conditioning, heating, plumbing, and electrical services — all delivered with the same honesty and professionalism that built our reputation over three decades.

We're not a franchise or a faceless corporation. We're your neighbors. Our team lives in the same communities we serve, and we treat every customer's home like our own. That's the LEX difference.

Three Generations of Excellence
Locally Owned & Operated
Plano Headquarters Since 2004
Background-Checked Technicians
LEX Air Conditioning Team

LEX By the Numbers

More than two decades of keeping DFW families comfortable

22+ Years in Business
2,000+ 5-Star Reviews
50+ Expert Technicians
30+ Cities Served
24/7 Emergency Service

Why Families Choose LEX

The values that guide every service call

Honest & Transparent

We'll always explain your options clearly, offer upfront pricing, and never pressure you into unnecessary work. Our technicians are salaried, not commission-based.

Expert Technicians

Every technician is licensed, background-checked, drug-tested, and factory-trained. We invest heavily in ongoing education to stay current with the latest technology.

Respect Your Time

We show up on time with fully-stocked trucks. Same-day service available, and we'll never leave you waiting around wondering when we'll arrive.

Respect Your Home

Shoe covers, drop cloths, and thorough cleanup are standard on every job. We treat your home like our own and leave it cleaner than we found it.

100% Satisfaction Guarantee

Every service comes with our satisfaction guarantee. If something isn't right, our owners are always accessible to make things right — fast.

Community Focused

We live here. We work here. We raise our families here. Supporting our local community isn't just a slogan — it's who we are.

What Our Customers Say

Three generations of customer satisfaction

"This level of service is commendable. Daniel was kind, courteous, and thorough. I appreciated that he didn't rush the job and was able to get everything working to my satisfaction."

— Adam T., Plano

"Two new HVAC units and compressors installed in about six hours, very efficient. Trane is a great quality system with a 10-year warranty. Couldn't be more pleased with Jose and Brandon."

— Gunnar S., Frisco

"I really didn't think LEX could replace our 3 Heating & AC systems in one day but they sure did! They found a better way to install them that made them more efficient."

— Sarah M., McKinney

Read More Reviews

Licensed, Certified & Trusted

Credentials that give you confidence

Trane Comfort Specialist

Trane Comfort Specialist

Factory-authorized dealer with advanced training

Best HVAC Dallas - Expertise.com

Best of Dallas

Recognized by Expertise.com

North Dallas Chamber of Commerce

Chamber Member

North Dallas Chamber of Commerce

Best of Carrollton 2020

Best of Carrollton

Community choice award winner

Texas Licenses: TACLA38788C (HVAC) • M-18088 (Plumbing) • TECL23192 (Electrical)

Experience the LEX Difference

Join the thousands of DFW families who trust LEX for their home comfort needs. Call today or schedule online.

Available 24/7 for Emergencies • Same-Day Service • 100% Satisfaction Guarantee