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Heating Installation & Repairs

San Marcos’ Trusted Heating Specialists

Living in San Marcos and feeling the chill? Oasis Heating & Air Conditioning is your friendly neighborhood expert for all things heating. Whether you’re looking to get a brand-new heater, want to upgrade your old one, or just need some quick fixes, we’ve got you covered. With us, you get top-notch service without any hidden costs or surprises.

Time for a New Heater? Watch Out for These Signs:

Heaters don’t last forever, unfortunately. Here’s how you can tell if yours might be on its last legs:

  • Aging system nearing or surpassing the 20-year mark
  • A furnace that’s struggling to distribute warmth evenly
  • Loud, unusual noises from your unit
  • A noticeable uptick in your utility bills
  • Frequent, erratic starts and stops of your system
  • Repeated calls to the repair technician

Noticed any of these issues? Stay warm and let the pros at Oasis step in!

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.

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San Marcos Heating Services

Every home is different, and so is every heating job we tackle. Our skilled team knows their way around all types of heaters – from the traditional ones like gas furnaces to the latest ductless systems and heat pumps. We’re familiar with all the top brands and models, and we treat old and new systems with the same expert care.

Furnace Services We Shine In:

  • New heating installations: Get ready for those San Marcos winters.
  • Heating system upgrades: Boost your home’s warmth and energy efficiency.
  • Heater fixes: For those unexpected cold moments.
  • Smart thermostat setups: Manage your heat with the latest tech.
  • Heat pumps: Efficient heating and cooling in one.
  • Furnace repairs: Making sure you’re all set for the colder months.

Need help with any of the above listed services? Don’t sweat it (no pun intended)! We’re ready and able to handle any heating service you need!

Embrace the Warmth with Oasis

Whatever your heating concern, it’s safe to say we’ve got the remedy! So, when the San Marcos chill starts, remember that Oasis Heating & Air Conditioning is just a call away. Dive into a world of seamless heating solutions, coupled with impeccable service. Stay cozy everyone!

Frequently Asked Questions

What is an AFUE rating?

AFUE stands for Annual Fuel Utilization Efficiency.  This rating measures the amount of heat a furnace produces compared to the amount of fuel consumed.  Like an AC’s SEER rating, the higher the AFUE rating of a furnace, the more energy efficient it is.

How do I know if I need a new heater?

If your existing heater requires constant repairs, is 15 years or older, or can’t heat 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. Contact us today to schedule your free in-home consultation.

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

Furnaces can stop working for several reasons, and it is crucial to know some telltale signs of a failing furnace.  Some of the top warning signs that your furnace is not working correctly include the following: the unit is blowing cold air, the unit is making unusual loud noises, increased utility bills, the unit starts and stops, and water leaks around the unit.  If you notice any of these, contact us today so we can help!

What are some ways I can reduce heating costs?

High home-heating bills pack a real punch into household budgets each winter.  Here are some ways you can reduce your monthly heating bill – change the air filter regularly, schedule a tune-up for your furnace each year, seal air leaks, and utilize a smart thermostat. 

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