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Trusted Air Conditioning Services

Expert AC Installation and Repair in San Marcos

Feeling the heat? Look no further than Oasis Heating & Air Conditioning for all your cooling needs. With over 30 years of delivering top-tier AC services in San Marcos, our track record speaks volumes. We’re experts in installing, repairing, and upgrading AC systems to make your space comfortable year-round.

What Makes Oasis the Best AC Company in San Marcos?

  • Years of Expertise: Our 30+ combined years in HVAC services in San Marcos give us an edge in providing top-quality solutions.
  • Versatile AC Service: Whether it’s a standard air conditioning unit, ductless mini-split system, or a heat pump, we’ve got the know-how.
  • Comfort All Year Round: Our San Marcos AC installation and repair services ensure you’re cozy no matter how hot it gets outside.
Signs You Might Need Our San Marcos AC Repair or Replacement:
  • Age matters: If your air conditioner’s been with you for over 20 years, it might need some TLC or a replacement.
  • Uneven cooling in your home can indicate system issues.
  • A noisy AC system can be a cry for a check-up.
  • Odd odors from your unit? That’s a sign to call our San Marcos AC repair experts.
  • If your energy bills are skyrocketing, your AC might be working harder than it should.
  • Spotting leaks from your AC? Time to call us up!
  • Regular repairs can be taxing. Consider a system assessment or upgrade.
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San Marcos’ Premier Air Conditioning Services:

Your comfort is top-of-mind at Oasis Heating & Air Conditioning. From AC repairs to smart thermostat installations in San Marcos, we’ve got you covered. Transparent pricing and no sneaky fees mean you know exactly what you’re getting.

Our AC Services in San Marcos Include:

  • Leading AC installation tailored for San Marcos homes
  • Smart thermostat solutions for smarter energy usage.
  • AC system replacements and upgrades, ensuring top-notch efficiency.
  • Quick and thorough AC repairs by San Marcos professionals.
  • Heat pump installations and servicing for optimal warmth.
  • Expertise in ductless mini-split systems – modern solutions for modern homes.
Experience Oasis Comfort

All homeowners deserve an efficient air conditioning system. Whether you’re contemplating a fresh installation or tuning up your current one, Oasis Heating & Air Conditioning is your go-to HVAC contractor. Experience unparalleled comfort with our top-tier AC services.

Heating and Air Conditioning Services in San Marcos & Surrounding Areas

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Decades of experience and a commitment to excellence make Oasis a top choice for any HVAC needs.

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Our promise is not just quality workmanship – it is your complete satisfaction. We stand by every service.

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Our flexible financing options are tailored to accommodate every client’s budget, ensuring you do not have to compromise on quality.

Frequently Asked Questions

What does SEER mean, and why is it important?

SEER stands for Seasonal Energy Efficiency Ratio, and it is a rating system of the air conditioner’s cooling capacity to power input.  In simple terms, the higher the SEER rating of an AC system, the more energy efficient that system is.

Do bigger air conditioning units perform better?

It is important to purchase an air conditioner that is the correct size for your home.  If you buy an AC unit that is too big, it may cool your home faster, but it will have short-run cycles and will not eliminate humidity effectively.  Additionally, a unit that starts and stops more often than it should may use more energy and even wear down faster.

How do I know if I need a new air conditioner?

If your existing air conditioner requires constant repairs, is 15 years or older, or can’t cool your home properly, we recommend you replace it.  A new system will provide you with added comfort instantly and other long-term cost saving benefits.  If you have specific questions about your system, contact us today!  We are happy to help!

What are some signs that my AC is not working correctly?

Air conditioners can stop working for several reasons.  Some signs that your AC system is not working correctly include the following: the unit is blowing warm air, there are high humidity levels in the home, the unit is making strange noise, and you notice water or moisture around the outdoor unit.  If you notice any of these, contact us today so we can help!

How do I know what size air conditioning unit my house needs?

The most effective way to properly size an AC system for a home is to use a heat load calculation.  Some companies may just use the square footage of the home, but that can sometimes lead to issues.  All our in-home design consultants are trained on how to perform a heat load calculation, so we can recommend the perfect sized system for your home.  Schedule a free in-home consultation today!

Trusted HVAC & Plumbing Excellence in San Marcos: Experience the Oasis Advantage

100% Satisfaction Guarantee

Providing top-tier HVAC & plumbing services is our standard. With warranties that exceed the usual industry standards for both equipment and labor, our utmost priority is to ensure your complete satisfaction with every project.

Experienced & Knowledgeable

Boasting over three decades in the HVAC & plumbing fields, our team delivers unparalleled expertise to every task. Our commitment to ongoing training and learning guarantees state-of-the-art solutions and premier service for all your home comfort needs.

Fair, Upfront Pricing

Marrying excellent AC, heating & plumbing expertise with clear, upfront pricing is our pledge. You can anticipate competitive rates without any unexpected costs or hidden charges, and our install and replacement estimates will always be free!


We firmly believe that everyone deserves optimal indoor comfort, regardless of budget constraints. Explore our flexible financing options to ensure home comfort without the financial stress.

Above and Beyond Factor

Our dedication to excellence is not just about systems and solutions. It is about the relationships we build. Every interaction, big or small, is valued. We strive to ensure that everyone—whether a loyal customer or a first-time inquirer—feels the depth of dedication and expertise our team brings.

Give Us a Call! Or Let Us Contact You!
(619) 626-2499