Leave a Review

1812 W Griffin Parkway, Suite B, Mission, TX 78572

(956) 955-6340


Sullivan City’s Finest AC Service Contractor

At Frontier Air Conditioning, we specialize in providing top-notch AC service to the residents and businesses of Sullivan City, TX. Our team of highly skilled technicians is dedicated to ensuring your air conditioning system operates at peak performance, keeping you cool and comfortable throughout the hot Texas summers. With years of experience and a commitment to excellence, we are your go-to source for all your AC needs.

We pride ourselves on our extensive knowledge and expertise in the HVAC industry. Our technicians undergo rigorous training and stay up-to-date with the latest advancements in AC technology. This allows us to diagnose and resolve any issues with your air conditioning system quickly and efficiently. Whether you need routine maintenance, repairs, or a new installation, you can trust Frontier Air Conditioning to get the job done right the first time.

Comprehensive AC Services with Frontier Air Conditioning

At Frontier Air Conditioning, we offer a full range of AC services to meet the diverse needs of our clients in Sullivan City, TX. Our services include:

– AC installation: We provide expert installation of new air conditioning systems, ensuring optimal performance and energy efficiency.
– AC repair: If your AC unit is malfunctioning, our skilled technicians will diagnose the problem and provide prompt, effective repairs.
– AC maintenance: Regular maintenance is crucial for extending the lifespan of your AC system and preventing costly breakdowns. We offer comprehensive maintenance plans to keep your unit running smoothly.

At Frontier Air Conditioning, we are committed to delivering unparalleled service to our community. We understand that each customer has unique needs and preferences, which is why we take a personalized approach to every service call. Our friendly and professional technicians will take the time to listen to your concerns, answer your questions, and provide tailored solutions that meet your specific requirements.

Uncompromising Quality and Reliability

Since our founding in 2006, Frontier Air Conditioning has built a reputation for excellence and reliability in the HVAC industry. We use only the highest quality parts and equipment, ensuring that your AC system operates at optimal efficiency and lasts for years to come. Our commitment to quality is evident in every aspect of our work, from our meticulous attention to detail to our prompt and professional service.

At Frontier Air Conditioning, we are not just in the business of climate control; we are dedicated to creating comfortable, energy-efficient, and healthy environments for all. Trust us to be your partner in maintaining a cool and inviting space in Sullivan City, TX. Contact us today to schedule your AC service and experience the Frontier Air Conditioning difference.


Air Conditioning Service, AC Service Near Me, HVAC Service & AC Service in Sullivan City, TX

AC Repair Services in Sullivan City, TX | AC Service Near Me

Air Conditioner ServiceAC Repair Services ∴ Sullivan City, TX

Our Guiding Principles

The action of helping or doing work for someone. “At Frontier we have the passion to serve others above and beyond their expectations.”


The quality of being honest and having strong moral principles; moral uprightness. “In a world of compromises, our integrity stands firm.”


To admire (someone or something) deeply, as a result of their abilities, qualities, or achievements. “We treat everyone with dignity and respect while remaining consistent and humble.”


The quality of being trusted and believed in. “We build trust on credibility; and our credibility is built on truth and action.”

What people are saying
Customer Reviews

Every team member at Frontier were fantastic! They were patient and answered all questions and concerns leading up to the day of install. For the install, the crew arrived on time and finished on time as promised. The install crew were professional, courteous and left the job spotless. Absolute professionalism from begonia to end. Thank you!

Matthew B

I have been a customer for awhile now and there’s a reason for that. Thank you for taking care of my 3 A.C. / heater systems. Justin came to do maintenance today and he did a great job. Appreciate everyone’s help..begins with Susan and her friendliness to Jay and Victor whom are also very friendly and helpful. Thank you to all!

Anita R

Justin was on time and very informative. Fixed the problem in less than 2 hours. Thank you Justin. Called on Friday afternoon and was there first thing Saturday. Replaced the fan motor and now we are cool again.

Barbara Y

We have always had excellent service from Frontier. They always arrive within time window. Their technicians are very knowledgeable, efficient and clean up after themselves. Robert was great about explaining everything he had done and suggested additional service that should be performed.

Bob L

Justin Siguenza of Frontier AC just left my house after providing bi-annual services. He is a very professional tech and I was also impressed with his friendliness. I hope to see him again in six months.


Love this company got a whole new system with them works amazing. And if you need any assistance for service, question etc. They go above and beyond to provide fast quality service. Highly recommend Frontier.

Reynaldo B

Very good job Rigo the tech did. Very thorough and professional attitude. Will use their services whenever I need them again. Excellent service. Another satisfied customer. Keep up the good job.

Jay T

Called for service and the tech was at my door in about an hour! Victor was very professional and explained his processes, repairs and suggestions thoroughly. He got our unit up and running in no time! I will definitely stick with Frontier for any future services.

Anna C

Great service and the owner is very knowledgeable. He took time to answer any question I had. The technicians were very polite and professional. I would definitely recommend Frontier to anyone.

Oscar M

I was very pleased with my experience with Frontier Air Conditioning. From the first phone call after my old AC failed until my new AC was installed everyone were friendly and professional. I recommend them for your AC and heating needs.

Keith T

I have had great service with Frontier AC. My AC is running smoothly and my anti microbial system is working great. Rigo came out today and service my AC today and was friendly and professional. Thanks Frontier.

Carol P

Rigo did a great job for me. One of my own repairs blew a fuse within my air conditioner. Rigo figured out the problem, replaced the fuse, and explained everything to me so that I don’t make the same mistake again. I’m very impressed with his knowledge and friendly nature.

Brian G

Very, very happy with Frontier services, our a/c unit went oit all of a sudden and we were needing to replace the entire unit, and not only did they give us a great price and customer service but they wen out of their way to send out technicians on a Saturday to provide immediate service. Technicians were great and very informative on the unit and any questions I asked. So thank you Frontier for your services.

Layoz M



Rio Grande Valley Proud

(956) 955-6340

AC Repair Services

Air Conditioner Service

Sullivan City, TX