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

(956) 955-6340


Reliable AC Repair in Sullivan City, TX

Frontier Air Conditioning has been a trusted name in AC repair for Sullivan City, TX, and the surrounding areas since 2006. Our team of highly skilled technicians is dedicated to providing top-notch service and ensuring your air conditioning system operates at peak performance. We understand the importance of a properly functioning AC unit, especially during the hot Texas summers, and we are committed to delivering prompt, reliable, and effective solutions to all your cooling needs.

At Frontier Air Conditioning, we pride ourselves on our expertise and dependability. Our technicians undergo rigorous training and stay up-to-date with the latest industry trends and technologies to provide you with the best possible service. We work with all major AC brands and models, and our extensive knowledge allows us to quickly diagnose and resolve any issues your system may be experiencing. Whether you need a simple repair or a complex system overhaul, you can trust us to get the job done right the first time.

We commit to setting the standard for HVAC excellence. Our team approaches every project with meticulous attention to detail, ensuring that no aspect of your AC repair is overlooked. We use high-quality parts and tools to guarantee long-lasting results, and our work is backed by a satisfaction guarantee. Your comfort and peace of mind are our top priorities, and we go above and beyond to exceed your expectations.

Unparalleled Service from Frontier Air Conditioning

At Frontier Air Conditioning, we pledge to deliver unparalleled service to our community. We understand that each customer’s needs are unique, and we take the time to listen to your concerns and tailor our solutions accordingly. Our team is known for their thoroughness, responsiveness, and personalized approach. We treat your home or business as if it were our own, and we work diligently to minimize disruptions to your daily routine during the repair process.

We believe in building trust and long-standing relationships with our customers. Our commitment to excellence and customer satisfaction has earned us a reputation as a reliable and trustworthy AC repair company in Sullivan City, TX. We value your feedback and continuously strive to improve our services to better serve you. When you choose Frontier Air Conditioning, you can rest assured that you are in capable hands.

Creating Comfortable and Healthy Environments

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. We understand the impact that a well-functioning AC system can have on your quality of life, and we work tirelessly to ensure that your space is cool, comfortable, and free from air quality issues. Our team can provide expert advice on how to optimize your AC system for maximum efficiency and help you make informed decisions about repairs or replacements.

Choose Frontier Air Conditioning for all your AC repair needs in Sullivan City, TX. With our expertise, dependability, and commitment to excellence, you can trust us to keep your home or business cool and comfortable all year round. Contact us today to schedule your AC repair service and experience the difference that our dedicated team can make.


Air Conditioning Repair, AC Repair, AC Repair Near Me & Air Conditioner Repair in Sullivan City, TX

HVAC Repair in Sullivan City, TX | AC Repair Near Me

Central Air Conditioning RepairHVAC RepairCentral AC Repair ∴ 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

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

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

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

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

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

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.


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 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

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

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

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 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



Rio Grande Valley Proud

(956) 955-6340

Central AC Repair

Central Air Conditioning Repair

HVAC Repair

Sullivan City, TX