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

(956) 955-6340


AC Replacement Experts in Sullivan City, Texas

Frontier Air Conditioning is your trusted partner for AC replacement in Sullivan City, TX. With our extensive experience and unwavering commitment to excellence, we ensure that your home or business remains comfortable and efficient throughout the year. Our team of skilled technicians is dedicated to providing top-notch AC replacement services tailored to your specific needs.

At Frontier Air Conditioning, we pride ourselves on our expertise and reliability. Since our founding in 2006, we have built a reputation for delivering unparalleled service to our community. Our team consists of highly trained and certified professionals who possess the knowledge and skills necessary to handle any AC replacement project with precision and efficiency.

We understand the importance of a well-functioning air conditioning system, especially in the hot and humid climate of Sullivan City, TX. That’s why we offer a wide range of high-quality AC units from renowned brands, ensuring that you have access to the latest technology and energy-efficient solutions. Our experts will guide you through the selection process, helping you choose the perfect AC system that meets your cooling requirements and budget.

Our Personalized Approach

We believe in building long-lasting relationships with our clients based on trust, dependability, and a personalized approach. When you choose Frontier Air Conditioning for your AC replacement needs, you can expect a seamless and stress-free experience from start to finish. Our team will conduct a thorough assessment of your space, considering factors such as size, layout, and insulation to determine the optimal AC system for your property.

Throughout the replacement process, we maintain open communication, keeping you informed and addressing any concerns or questions you may have. We value your time and strive to complete the installation efficiently, minimizing disruption to your daily routine. Our technicians are not only skilled in their craft but also respectful of your property, ensuring a clean and tidy workspace.

Our Commitment to Excellence

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 commit to setting the standard for HVAC excellence in Sullivan City, TX, and beyond. Our team continuously stays updated with the latest industry advancements, ensuring that we provide cutting-edge solutions and exceptional service.

We understand the significance of a properly functioning AC system in maintaining a comfortable and productive environment. That’s why we go above and beyond to deliver results that exceed your expectations. From the initial consultation to the final installation and beyond, we are here to support you every step of the way.

When it comes to AC replacement in Sullivan City, TX, trust Frontier Air Conditioning to get the job done right. With our expertise, reliability, and personalized approach, we are confident in our ability to provide you with the best possible solutions for your cooling needs. Contact us today to schedule a consultation and experience the difference that comes with working with a company dedicated to your comfort and satisfaction.


Air Conditioning Replacement & AC Replacement in Sullivan City, TX

Central AC Replacement in Sullivan City, TX | AC Replacement

Air Conditioner ReplacementCentral AC ReplacementCentral Air Replacement ∴ 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

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.


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

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

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

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

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

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

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

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

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

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



Rio Grande Valley Proud

(956) 955-6340

Air Conditioner Replacement

Central Air Replacement

Central AC Replacement

Sullivan City, TX