About RocTex
RocTex is family owned and operated. Wife, Jami, is a paralegal for a law firm in Rockwall while also performing duties for RocTex in the evenings and weekends. Mark is a veteran of the United States Army having served from 1990-1993 during Operation Desert Storm.
RocTex Heating & Air Conditioning, Ltd
A Brief History
RocTex Heating & Air Conditioning, Ltd was started after owners Mark and Jami Lair decided it was time for Mark to branch off from the air conditioning company he’d managed for nearly 17 years. With his knowledge of the administrative and logistical aspects of a successful HVAC company, combined with the nearly 30 years of service and managerial experience in multiple industries, RocTex Heating & Air Conditioning is poised to become a successful brand within the industry.
WHO WE ARE
Areas We Serve
DALLAS COUNTY
Addison
Carrollton
Coppell
Dallas
Desoto
Duncanville
Farmers Branch
Garland
Grand Prairie
Hutchins
Irving
Lancaster
Mesquite
Richardson
Rowlett
Royse City
Sachse
Seagoville
Sunnyvale
Wilmer
COLLIN COUNTY
Allen
Anna
Blue Ridge
Celina
Fairview
Farmersville
Frisco
Lavon
Lucas
McKinney
Melissa
Murphy
Nevada
Plano
Princeton
Prosper
St. Paul
The Colony
Wylie
DENTON COUNTY
Argyle
Bartonville
Cooper Canyon
Corinth
Crossroad
Denton
Double Oak
Flower Mound
Highland Village
Justin
Lakewood Village
Lantana
Lewisville
Little Elm
Northlake
Oak Point
Roanoke
Savannah
Shady Shores
ROCKWALL COUNTY
Fate
Heath
Rockwall
Rowlett
Royse City
Our Team
With a team of experienced technicians, we can tackle any of your comfort issues quickly and efficiently.

Mark Lair
Founder

Jami Lair
Co-Founder
Get In Touch
(972) 656-1507
Location
Rockwall, TX 75032
Hours
Monday 8am – 5pm
Tuesday 8am – 5pm
Wednesday 8am – 5pm
Thursday 8am – 5pm
Friday 8am – 5pm
Saturday 8am – 12pm
Sunday CLOSED
Send A Message
What Our Clients Say!
"We used RocTex as part of a home warranty service. They were a breath of fresh air. Scott who came in to do the service was very professional. He was very courteous; he was able to identify the issue very quickly and provided solution. He did not try to upsell anything, or show other things that warranty does not cover. This has been my issue in the past where the contractors come in and talk about things that are not covered and try to sell more from their side. The manager Mark was also very honest and provided options for copay what were reasonable and also provided great options for replacement of the HVAC system on request."
They installed an entirely new AC system for my family home. Everyone I had communications with was extremely professional, courteous and very knowledgeable throughout the entire process. Mark was awesome! I would and will recommend them to anyone who needs AC work or system replacement.
Jon P.
"Hey Mark! The guys just left & they did a fantastic job! We are SOOO happy....with you, your guys & your company!!! Moreover, we are very happy with the job they did, with the price we paid AND that we now have cool air in our home...without a big hassle!!! So, thank you on all accounts!!! I will never use anyone else for my heating & AC needs! The high-pressure BS from 6 other companies left me furious when I got all of their bids! Each of them took up literally hours of my time with all these big presentations & conference calls which resulted in multitudes of 'Options' that were all literally $1,000's of more than what I actually needed!!! I cannot tell you what a ‘breath of fresh air’ it has been to work with RocTex Air!!! There was absolutely NO pressure! It was simply “here’s what’s wrong and here is the price to fix it”!!! Which, as I said, was thousands less than anyone else!!! Being on a fixed income is hard, but you made this repair SO EASY, and we REALLY APPRECIATE that!!!
And, again…thank you sooo much for your service to our country, Sir!!!
Best to you & your wife Jami, and continued success to your company!"
Sincerely,
Wendi W.
Kreymer Estates
Wylie, TX
Thomas was so kind and your company has been one of the ONLY companies we have had come out that was kind, reliable, knew the issue and wasnt trying to upsell us on a cleaning or other items.
I appreciate you and I hope when we have our next issue, we get the same company come out.
THANK YOU!
Monica Lea
“J T was my tech. He noticed a short in my outside unit. I've had many techs here over the years, not one saw it. He got my unit going in no time, my ill wife was in tears of joy. J T stuck around and made sure all was working properly. What a great, professional employee you have. We will remember you and J T forever.”
“Their prices were very competitive compared to some of the HVAC companies that we have dealt with in the past.”
"Robert was awesome!! I cannot thank him enough. He was very knowledgeable and checked everything...I appreciate having someone that made me feel comfortable and that I wasn't going to be taken advantage of! I hope if I ever need service again he is who is sent!! THANK YOU!!!”
“There was never pressure to take up any additional service or replacement. They also provide a great maintenance service on request.”
“I will not hesitate to use them for all my future HVAC needs, and would recommend them to all my friends.”
“RocTex recently replaced my broken HVAC unit with a new unit. They walked me through their product, pricing, and installation. Each step of the process was pleasant. They were able to mobilize and complete the installation the very next day. Robert, my favorite HVAC technician, was on time, reliable and professional. Keep up the good work RocTex.”
- Michael Goh, 5/29/21