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

(956) 955-6340


Click the link below to download our brochure.

Cowboy Kool Club Benefits

Join the Club today! Call or text 956-580-4511, ask your friendly service specialist or email frontier@frontieraircon.net and let them know you want to be part of the club!

Your Trusted HVAC Maintenance Plan!


HVAC Maintenance from Frontier Air Conditioning

At Frontier Air Conditioning we service all makes and models of HVAC. Our goal is to reduce your energy bills, increase indoor air comfort, and promote cleaner indoor air quality. With prioritizing regular service, you can expect smaller, less frequent repairs. Satisfy the manufacturer’s warranty and increase the lifespan of your system. The positives of seasonal HVAC maintenance from the professionals at Frontier Air Conditioning are vast. Simply give us a call today to get the process started and reap the benefits.

We’ll Keep Your System Running Smoothly

When you call (956) 955-6340 for HVAC maintenance in Mission, Penitas, La Joya, Sullivan City, and McAllen, TX expect a knowledgeable, NATE-certified, and friendly representative at your door. We are a family-owned and run business that treats you like a member of the team. We aren’t going to upsell or overcharge our friends and neighbors. We provide sustainable solutions with every call that we receive.

For as low as $19 a month, have peace of mind with the Cowboy Kool Club! 


Heating Maintenance, Air Conditioning Maintenance, HVAC Maintenance & HVAC Maintenance Near Me Mission, TX, Penitas, TX, La Joya, TX, Sullivan City, TX & McAllen, TX

HVAC Service Mission, TX | HVAC Maintenance Penitas, TX | HVAC Service Near Me La Joya, TX

HVAC ServiceHeating ServiceAir Conditioning ServiceHVAC Service Near Me ∴ Penitas, TX ∴ La Joya, TX ∴ 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

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

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

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

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

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

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

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

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

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 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

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 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



Rio Grande Valley Proud

(956) 955-6340

HVAC Service

HVAC Service Near Me

Air Conditioning Service

Heating Service

Mission, TX

Sullivan City, TX

McAllen, TX

Penitas, TX

La Joya, TX