Get matched with top heating and air conditioning pros in San Marcos, TX
There are 26 highly-rated local heating and air conditioning pros.
TRUSTED BY SAN MARCOS, TX HOMEOWNERS
4.4 
190 Verified Reviews for Heating And Air Conditioning Service pros in San Marcos, TX
*The Angi rating for Heating And Air Conditioning Service companies in San Marcos, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in San Marcos, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on July 15, 2025
Heating and air conditioning pros in San Marcos
O2Kool has been Austin’s premier HVAC company for the past 15 years and we’ve shown no signs of cooling down. Our ability to confidently assess, install, repair,and upkeep our units, sets us apart from all other HVAC companies. Our experienced technicians are on call 24/7 in order to provide optimum customer service to each and every one of our clients. We aim to fulfill our clients’ HVAC needs by promising reliable, honest, quality service but we don’t stop there. Our technicians will educate our customers on the process of maintaining their units in order to maximize their a/c and heating experience.
"I can not say enough positive about Chris and Chuck and O 2 KOOL!! Chuck came out in early January to look at my old Trane gas furnace .. he got it going with no trouble. Now today ... during our ice/snow armageddon it went out again. I called and Chris FaceTimed with me .. looked at what was up and talked me through how to relight the system myself. Good news .. I now have heat! I strongly recommend them to anyone who needs help with their heating and cooling system! They not only helped, but assured me .. a 60 yr old woman .. everything would be OK and safe. That is a VERY rare quality!"
Cindy M on February 2021
O2Kool has been Austin’s premier HVAC company for the past 15 years and we’ve shown no signs of cooling down. Our ability to confidently assess, install, repair,and upkeep our units, sets us apart from all other HVAC companies. Our experienced technicians are on call 24/7 in order to provide optimum customer service to each and every one of our clients. We aim to fulfill our clients’ HVAC needs by promising reliable, honest, quality service but we don’t stop there. Our technicians will educate our customers on the process of maintaining their units in order to maximize their a/c and heating experience.
"I can not say enough positive about Chris and Chuck and O 2 KOOL!! Chuck came out in early January to look at my old Trane gas furnace .. he got it going with no trouble. Now today ... during our ice/snow armageddon it went out again. I called and Chris FaceTimed with me .. looked at what was up and talked me through how to relight the system myself. Good news .. I now have heat! I strongly recommend them to anyone who needs help with their heating and cooling system! They not only helped, but assured me .. a 60 yr old woman .. everything would be OK and safe. That is a VERY rare quality!"
Cindy M on February 2021
Villas Plumbing & Air Conditioning is a local family owned company. We are self funded through our loyal customers with their quality of service in mind. Our whole team to date was born and raised here in the greater Austin Texas area. Quality of service, Attention to detail, and Reliability are what sets us apart from the rest of the plumbing industry. With decades of experience and fair pricing we believe in serving our community with the old-fashioned, neighborly, & friendliness approach to business we all used to know. Villas Plumbing is made up of several Professional, Respectful, and Reliable men and women, and we all look forward to serving you and your families.
"Very pleased with my experience and found they were competitive on pricing compared to other estimates."
Parker H on February 2025
Villas Plumbing & Air Conditioning is a local family owned company. We are self funded through our loyal customers with their quality of service in mind. Our whole team to date was born and raised here in the greater Austin Texas area. Quality of service, Attention to detail, and Reliability are what sets us apart from the rest of the plumbing industry. With decades of experience and fair pricing we believe in serving our community with the old-fashioned, neighborly, & friendliness approach to business we all used to know. Villas Plumbing is made up of several Professional, Respectful, and Reliable men and women, and we all look forward to serving you and your families.
"Very pleased with my experience and found they were competitive on pricing compared to other estimates."
Parker H on February 2025
We are proud to be San Antonio's largest residential heating and air conditioning contractor. From the moment you call until the job is done, our goal is your 100% satisfaction. If the job is not done right, we will make it right.
"UPDATE: Amazing how this wonderful review has turned to wishing I never left it or could give them 0 stars. The initial sale was amazing (should’ve known it wouldn’t last). We spent 30k on a brand new unit. 1.5 year later and we find ourselves on day 8 without an AC, now being told it may be another week “and if we don’t hear back from them by Friday, for US to call them again”. Do not be tricked by their initial caring demeanor. It obviously doesn’t seem to last. I have health issues, we have 2 senior dogs and are in Texas. It’s been pushing 90 degrees in our home and they can’t provide a solution to a ‘Cadillac of units’ that THEY recommended and we fell for. I am at a loss. Jon Wayne is the company that installed the unit, now they’re saying the unit ‘is grounded’ and ‘is like a heart that stopped beating’. Crazy that it’s supposed to be a top of the line unit that they compare to a Cadillac for the AC world, yet it stopped functioning after a year. Do yourself a favor and get other options and opinions before trusting them on something as important as cool air in your home. I can’t believe we are dealing with this. Now we’re 30k in, an additional 1k for their ‘warranty’ and still without a working AC. WOW."
Amanda V on June 2025
We are proud to be San Antonio's largest residential heating and air conditioning contractor. From the moment you call until the job is done, our goal is your 100% satisfaction. If the job is not done right, we will make it right.
"UPDATE: Amazing how this wonderful review has turned to wishing I never left it or could give them 0 stars. The initial sale was amazing (should’ve known it wouldn’t last). We spent 30k on a brand new unit. 1.5 year later and we find ourselves on day 8 without an AC, now being told it may be another week “and if we don’t hear back from them by Friday, for US to call them again”. Do not be tricked by their initial caring demeanor. It obviously doesn’t seem to last. I have health issues, we have 2 senior dogs and are in Texas. It’s been pushing 90 degrees in our home and they can’t provide a solution to a ‘Cadillac of units’ that THEY recommended and we fell for. I am at a loss. Jon Wayne is the company that installed the unit, now they’re saying the unit ‘is grounded’ and ‘is like a heart that stopped beating’. Crazy that it’s supposed to be a top of the line unit that they compare to a Cadillac for the AC world, yet it stopped functioning after a year. Do yourself a favor and get other options and opinions before trusting them on something as important as cool air in your home. I can’t believe we are dealing with this. Now we’re 30k in, an additional 1k for their ‘warranty’ and still without a working AC. WOW."
Amanda V on June 2025
Choosing our 100% Locally and Veteran-Owned Service company means supporting a business that not only understands the needs of our community but also carries the dedication and discipline honed through military service. We pride ourselves on delivering top-tier, premium quality at affordable rates, ensuring you never have to compromise on value. Treating your Comfort like our Mission. Our detailed and thorough assessments of your home's heating and cooling systems, problems and concerns are clear but deeply educational, empowering you to make informed decisions for your comfort, safety and budget. With clear, upfront pricing in writing, there are never any surprises—just honest, reliable service from a company you can trust. Proven with our exclusive 100% Money Back Guarantee. Our Line Up of Heating and Cooling Services Include: Heating and Cooling Maintenance Heating and Cooling Service Heating and Cooling Repairs Full System Replacements Mitsubishi Ductless Mini Split Installations - Both Single Zone and Multi Zone Indoor Air Quality Enhancements Air Flow Modifications / Duct Replacements Custom Home Builds Light Commercial Applications and more...
"Installing went well, but sales and equipment were not as expected. Had no contact with seller since installed (no returned calls) ."
David W on March 2025
Choosing our 100% Locally and Veteran-Owned Service company means supporting a business that not only understands the needs of our community but also carries the dedication and discipline honed through military service. We pride ourselves on delivering top-tier, premium quality at affordable rates, ensuring you never have to compromise on value. Treating your Comfort like our Mission. Our detailed and thorough assessments of your home's heating and cooling systems, problems and concerns are clear but deeply educational, empowering you to make informed decisions for your comfort, safety and budget. With clear, upfront pricing in writing, there are never any surprises—just honest, reliable service from a company you can trust. Proven with our exclusive 100% Money Back Guarantee. Our Line Up of Heating and Cooling Services Include: Heating and Cooling Maintenance Heating and Cooling Service Heating and Cooling Repairs Full System Replacements Mitsubishi Ductless Mini Split Installations - Both Single Zone and Multi Zone Indoor Air Quality Enhancements Air Flow Modifications / Duct Replacements Custom Home Builds Light Commercial Applications and more...
"Installing went well, but sales and equipment were not as expected. Had no contact with seller since installed (no returned calls) ."
David W on March 2025
Blue Ribbon is more than just an HVAC company. We’re family. For more than 20 years, we’ve been a community staple that’s provided customers in the Greater Austin area with ultimate comfort. Our skills, quality workmanship, absolute honesty and budget-friendly services are what make our team No. 1 in area comfort.
"Great job and excellent service"
JT B on May 2024
Blue Ribbon is more than just an HVAC company. We’re family. For more than 20 years, we’ve been a community staple that’s provided customers in the Greater Austin area with ultimate comfort. Our skills, quality workmanship, absolute honesty and budget-friendly services are what make our team No. 1 in area comfort.
"Great job and excellent service"
JT B on May 2024
Affordable A/C & Heating has been serving Austin homeowners since 1989. Our expert team specializes in all your heating and cooling needs. Contact us today for top-notch service!
Affordable A/C & Heating has been serving Austin homeowners since 1989. Our expert team specializes in all your heating and cooling needs. Contact us today for top-notch service!
As a partner of the city of Austin Altruistic A/C, Heating & Plumbing is able to offer rebates as well as financing options, at a very competitive rate. Well qualified technicians and installers get the job done right the first time. Part of the mission of Altruistic A/C, Heating & Plumbing is to give back to the community, we offer a 10% discount to military and homeowners over 60 years old.
"They did a great job within a few hours and left aera looking good."
Paul B on December 2024
As a partner of the city of Austin Altruistic A/C, Heating & Plumbing is able to offer rebates as well as financing options, at a very competitive rate. Well qualified technicians and installers get the job done right the first time. Part of the mission of Altruistic A/C, Heating & Plumbing is to give back to the community, we offer a 10% discount to military and homeowners over 60 years old.
"They did a great job within a few hours and left aera looking good."
Paul B on December 2024
Legacy Home Services, your local HVAC, Electrical, and Plumbing contractor, exists to return respect to the home services industry in New Braunfels. Integrity. Honor. Service. Reliability. This Home Services company will distinguish itself from others by the virtues with which we conduct every business transaction. Legacy Heating & Air Conditioning Services, LLC started in February 2013 in Founder Chad Briggs’ garage. With a passion for serving people, Chad aimed to build an organization of individuals who genuinely care for the people in the community. A servant’s attitude was paramount, prioritizing respect for the customer and building a relationship rather than treating them like a transaction. Legacy quickly outgrew the garage through its stewardship towards customers and the community. In 2018, Legacy partnered with Trane Technologies to provide the New Braunfels community with the most reputable residential equipment. In October 2022, Legacy expanded by introducing the Electrical department and rebranding as Legacy Home Services, all while maintaining its focus on serving others. And in June 2025, Legacy expanded into Plumbing to continue offering its exceptional service to more customers! Legacy devotes its energy to become the #1 choice for home services in New Braunfels through its 5-star online reputation, loyal Legacy Family Plan Membership customers, highly trained and caring Comfort Technicians, and caring team of internal support team members. Above all, we care foremost about treating our customers like we would want to be treated, and work to return respect to the HVAC & Electrical industries in New Braunfels.
"Chris & Sam were an amazing team. They were right on time and got the work done very quickly and efficiently. They went the extra mile to answer our many questions and trained us on using our thermostats. They answered our inquiries re options on future expansion of our system. They made sure we knew how to properly use our system to optimize its capabilities. We are seniors, and not techies at all. They explained our 3-zone system to us in terms we could understand and even installed an app on our phones to remotely control our thermostats. Chris was so patient with us. What a great experience."
Barbara L on August 2021
Legacy Home Services, your local HVAC, Electrical, and Plumbing contractor, exists to return respect to the home services industry in New Braunfels. Integrity. Honor. Service. Reliability. This Home Services company will distinguish itself from others by the virtues with which we conduct every business transaction. Legacy Heating & Air Conditioning Services, LLC started in February 2013 in Founder Chad Briggs’ garage. With a passion for serving people, Chad aimed to build an organization of individuals who genuinely care for the people in the community. A servant’s attitude was paramount, prioritizing respect for the customer and building a relationship rather than treating them like a transaction. Legacy quickly outgrew the garage through its stewardship towards customers and the community. In 2018, Legacy partnered with Trane Technologies to provide the New Braunfels community with the most reputable residential equipment. In October 2022, Legacy expanded by introducing the Electrical department and rebranding as Legacy Home Services, all while maintaining its focus on serving others. And in June 2025, Legacy expanded into Plumbing to continue offering its exceptional service to more customers! Legacy devotes its energy to become the #1 choice for home services in New Braunfels through its 5-star online reputation, loyal Legacy Family Plan Membership customers, highly trained and caring Comfort Technicians, and caring team of internal support team members. Above all, we care foremost about treating our customers like we would want to be treated, and work to return respect to the HVAC & Electrical industries in New Braunfels.
"Chris & Sam were an amazing team. They were right on time and got the work done very quickly and efficiently. They went the extra mile to answer our many questions and trained us on using our thermostats. They answered our inquiries re options on future expansion of our system. They made sure we knew how to properly use our system to optimize its capabilities. We are seniors, and not techies at all. They explained our 3-zone system to us in terms we could understand and even installed an app on our phones to remotely control our thermostats. Chris was so patient with us. What a great experience."
Barbara L on August 2021
Looking for a company that gives you the “warm fuzzies” and makes you feel good each time we do business together? For Emergency Services or After Hour Services, Please call 512-450-1980! When you call A-Plus, you can sense warmth, experience and knowledge from our professional staff. Family owned & operated since 1977. We service Austin & surrounding areas 7 days a week .
"BUYER BEWARE! DO NOT USE THIS VENDOR! I was duped by this company! Told me the installation of my single front iron door would be $255/hr for 1 hr possible 2 hours for 2 people. This install was 7 hours for each person or 14 hours which cost me over $1300 to install 1 door. The door was already prehung. The 2 men were walking around wasting time, pretending to look for parts such as door handles which were right in front of them in the box. This is deceptive, false advertising, and will be reported to the BBB. They didn’t even get my confirmation/approval for additional hours or work! I will NEVER use their services again. Duped!"
Laurie P on April 2025
Looking for a company that gives you the “warm fuzzies” and makes you feel good each time we do business together? For Emergency Services or After Hour Services, Please call 512-450-1980! When you call A-Plus, you can sense warmth, experience and knowledge from our professional staff. Family owned & operated since 1977. We service Austin & surrounding areas 7 days a week .
"BUYER BEWARE! DO NOT USE THIS VENDOR! I was duped by this company! Told me the installation of my single front iron door would be $255/hr for 1 hr possible 2 hours for 2 people. This install was 7 hours for each person or 14 hours which cost me over $1300 to install 1 door. The door was already prehung. The 2 men were walking around wasting time, pretending to look for parts such as door handles which were right in front of them in the box. This is deceptive, false advertising, and will be reported to the BBB. They didn’t even get my confirmation/approval for additional hours or work! I will NEVER use their services again. Duped!"
Laurie P on April 2025
Texas Lone Star AC & Heating LLC is a top-rated HVAC contractor based in Brownsville, TX. We have been serving the local community for many years and have built a reputation for providing exceptional service and high-quality workmanship. Our team of experienced technicians are fully licensed and insured, and are dedicated to providing prompt and reliable service to our customers. We offer a wide range of services including air conditioning repair, furnace repair, and installation services. We also offer AC maintenance services to ensure that your system is running at peak efficiency. If you're looking for a reliable and trustworthy HVAC contractor in the Brownsville area, look no further than Texas Lone Star AC & Heating LLC. Call us today!
"Work preformed was very thoughrough and as promised. All employees were highly respectful and profesional, and willing to discuss various options to suit our specific needs. All in all, I am very satisfied with the work, and I would highly recommend."
Melissa M on June 2023
Texas Lone Star AC & Heating LLC is a top-rated HVAC contractor based in Brownsville, TX. We have been serving the local community for many years and have built a reputation for providing exceptional service and high-quality workmanship. Our team of experienced technicians are fully licensed and insured, and are dedicated to providing prompt and reliable service to our customers. We offer a wide range of services including air conditioning repair, furnace repair, and installation services. We also offer AC maintenance services to ensure that your system is running at peak efficiency. If you're looking for a reliable and trustworthy HVAC contractor in the Brownsville area, look no further than Texas Lone Star AC & Heating LLC. Call us today!
"Work preformed was very thoughrough and as promised. All employees were highly respectful and profesional, and willing to discuss various options to suit our specific needs. All in all, I am very satisfied with the work, and I would highly recommend."
Melissa M on June 2023
FAQs for heating and air conditioning service projects in San Marcos, TX
Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.
While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.
The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.
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