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Your All-In-One Ductless HVAC Solution
Why Consider a Ductless Mini-Split System?

While many homes benefit from central air, there’s an increasing demand for more versatile HVAC solutions. Enter ductless mini-split systems: a game-changer for temperature control. These HVAC stars stand out for several reasons:
1. No Ducts, No Fuss: As the name implies, these systems bypass the need for ductwork, making them an excellent choice for homes without it.
2. Energy Efficiency: By eliminating ductwork, you avoid the energy losses typically associated with traditional systems, translating to savings on your energy bills.
3. Flexibility: Ductless systems are perfect for targeting specific zones or rooms in your home such as extensions, sunrooms, or even your newly refurbished garage turned workspace.

Harness the Power of Zoned Heating & Cooling

Mini-split systems do more than just cool; they’re your all-around solution for keeping things comfy. With these systems, you can:

  • Effortlessly cool down that one bedroom that's always too warm.
  • Warm up or cool down several rooms smoothly and independently.
  • Finally tackle those pesky "hot spots" that never seem to cool down.
Benefits of Ductless HVAC Systems

Ductless HVAC systems are not just a fad; they’re a revolutionary step in home comfort, offering:

  • Top-Notch Efficiency: With impressive SEER ratings, these systems outpace traditional air conditioners and heat pumps in energy efficiency.
  • Eco-Friendliness: Their energy-efficient nature reduces your carbon footprint.
  • Modularity: You can start with one and expand as needed. Each unit operates independently, giving you the freedom to control temperatures in occupied spaces only.
  • Sleek Design: Unlike bulky traditional units, mini-splits are compact and can be discreetly mounted.
  • Humidity Control: Beyond temperature regulation, they can help in maintaining optimal humidity levels, ensuring a comfortable environment.
Discover New Home Comfort with Oasis

Ready to explore the future of home comfort? Our team at Oasis Heating & Air Conditioning is geared to guide you through the maze of options and help you pinpoint the best ductless solution for your home. Dive into the benefits of a ductless mini-split system and elevate your indoor comfort experience. Give us a call today for your free quote!

Frequently Asked Questions

What is a ductless mini-split system?

A ductless mini-split system is like a central AC system, but it does not require any ductwork.  Each indoor unit will service a single room or area, and each unit uses a separate fan and evaporator coil.  Give us a call today to see if a ductless mini-split system is a good option for your home!

How does a ductless mini-split system work?

A ductless mini-split system works on the same principles as larger HVAC systems.  Instead of a central indoor unit connected by long lengths of ductwork transporting warm and cool air back and forth though, a mini-split system places small units directly in each room, which pull in warm air and send it back out as cold air.

Where can mini-splits be installed?

Mini-splits are a flexible solution for many homes, especially those that do not already have ducting.  Some areas where you may see mini-splits in action are in bedrooms, living rooms, garages, finished basements, guest rooms, mancaves, or home additions.

What are the benefits of a ductless mini-split system?

The biggest advantage of ductless mini-split systems over traditional central air options is ease of installation.  For a home without existing ductwork, the installation of it can be an expensive and complicated endeavor.  The are many other advantages as well, including: integrated zoning with flexible coverage, extremely energy efficient, compact designs, more affordable than expanding a current HVAC system, and can be easily installed in detached exterior buildings.

Can a mini-splits cool my whole house?

Yes, they sure can.  You can use a ductless mini-split system to cool one room or your entire house.  The ability to cool a whole house is made possible by connecting the outdoor condenser to multiple indoor units – this is referred to a multi-zone mini-split system.

What is the difference between single zone and multi-zone?

A single zone system refers to one mini-split indoor unit.  A multi-zone system consists of two or more indoor units.

Heating and Air Conditioning Services in San Marcos & Surrounding Areas

trust 1 min


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.

finance 1 min


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

Signs It’s Time to Replace Your HVAC System

Age: Like any mechanical system, it will fail overtime.

High Energy Bills: Older models are less efficient & will lose efficiency as they get older.

Frequent Repairs: Repairs aren’t uncommon, but if they are required often, the system is likely at the end of its lifespan.

Trusted HVAC Excellence in San Marcos: Experience the Oasis Advantage

100% Satisfaction Guarantee

Providing top-tier HVAC 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 field, 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 heating and cooling needs.

Fair, Upfront Pricing

Marrying excellent heating and cooling 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 and bring home a premium heating and cooling system without 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

    Ready to Get Started?

    Schedule Appointment

    Contact us to schedule your in-home free consultation.


    Home Evaluation & Customized Plan

    We will help you to determine the best system for your home based on your needs, space, and budget.


    Install & Execute

    Our team will install the system of your choice and ensure it works perfectly.

    Don’t Listen to Us.
    Listen to Our Past Clients.

    Vinny B
    Vinny B
    Can't say enough good about this company. They worked with me on price and they offered a labor warranty much longer than the other companies. They are masters at the craft to as they addressed all the old issues I had with the system that was replaced. The new system is working great. They replaced both my heater and air conditioner and did it all in a day. Appreciated the follow up to see how everything is going as well. Get a quote from Oasis for any hvac project. I'm glad I did.
    Paloma Santiago
    Paloma Santiago
    This review is long overdue but I have had time to enjoy our new ac and heater that Oasis heating and air conditioning installed a few months ago. We saw one of their ads on Facebook and requested someone to contact us. We contacted a few companies from ads we saw. Oasis immediately stuck out to us because the gentleman who came showed us their license card when we came to the door. None of the other companies did that so it was different but it was also reassuring since we knew we were making a big investment in our home. One of the issues with our previous system was the poor air flow in our master bedroom. Michael was the only one to recommend increasing the vent to help. Instead of just giving us a quote really quick we could tell he listened to what we talked about and was really trying to fix the issues we had with the old system. They weren’t the lowest bid although close but they were nowhere close to the highest either. Overall we felt most comfortable with Oasis. The install was completed in two days and we have used our ac on many occasions since and weak airflow is fixed. I also tested out the furnace the other morning for the first time too. We are thankful to have found this company and have recommended them to a few other friends and family.
    Beata Zabnicka
    Beata Zabnicka
    Response time is great and very professional!
    Armando Acuna
    Armando Acuna
    Oasis was able to come out for an estimate the same day that I found them on Google. The guy who came out was here longer than some of the other companies sales people and he explained that they try to do as thorough of an inspection as possible when providing an estimate. He went into the attic to check out my old system while some others didn’t. Given the amount of time he dedicated just for a free estimate I was expecting the price to be high. It was quite the opposite and more competitive than most. It wasn’t the lowest but they quoted me the brand I mentioned and most of all I felt confident they would do good work given the effort they put into the estimate. The install was schedule and completed a few days later and everything is working perfectly. The house cools really quick and the system very quiet. I recommended them to a friend already and am glad I found them.
    K G
    K G
    I have been needing to upgrade my home air conditioning system for the past few years and have been putting it off. Instead of doing a repair this year I decided to get a whole new system. I interviewed several companies and decided on Oasis. I was somewhat nervous since they are a new company but that quickly went away. They communicated well, finished the job on time and showed me how to use the thermostat. Also they tested the system afterward while they cleaned up to make sure everything worked. I’m happy I gave them the chance. :)
    michael hurtado
    michael hurtado
    I found Oasis when looking up someone to replace my AC. They were able to give me an estimate that same day and then install everything even that same week. Everything is working perfectly. Appreciate them being so fast so I could stay cool during the heat wave.
    Josh Sotelo
    Josh Sotelo
    Got in touch with oasis when my ac unit suddenly went out. They showed up within a few hours and fixed the issue. Unit is still working and price was reasonable. Give them a call if you need help.