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Oasis Plumbing, Heating & Air Conditioning service van parked in a residential neighborhood

Proudly Serving San Marcos And San Diego County Homes

Built On Trust, Driven By Quality, Focused On You.

Plumbing And HVAC Solutions Built Around You

At Oasis Plumbing, Heating & Air Conditioning, we’re more than just a service provider — we’re your neighbors. Based in San Marcos, CA, we take immense pride in serving our community and the broader San Diego County.

Our understanding of the area’s unique needs, from coastal climates to diverse home structures, allows our team to deliver customized solutions that make a difference. We’re happy to say that we service all zip codes throughout San Diego County, bringing the care, attention and professionalism you expect.

Expect Personalized And Professional Service

Every home has its own story, and every homeowner has unique needs. That’s why we believe personalized AC and plumbing service in San Marcos service isn’t a luxury — it’s a necessity. At Oasis, we take the time to listen to your concerns, assess your home’s needs and create a solution that fits your situation.

Here’s what you can expect from our team:

  • Licensed and insured — Every service we provide meets strict professional standards and local codes, giving you peace of mind from start to finish.
  • Transparent communication — We explain your options clearly so you can make informed decisions with confidence.
  • Respect for your home — We treat your home like our own by maintaining clean workspaces, protecting your property and leaving everything better than we found it.
  • Tailored recommendations — We don’t believe in upselling or pressure tactics. Instead, we focus on solutions that make sense for your home, your goals and your budget.

When you work with Oasis, professionalism isn’t just a buzzword. It’s a promise we uphold on every call, every project, every time. Professionalism shapes everything we do, and it shows in the way we work.

The Oasis Advantage: Why Homeowners Choose Us

There’s a reason why so many homeowners trust Oasis to meet their San Marcos air conditioning and plumbing needs. Our team makes comfort easy, accessible and stress-free. We stand out for more than just our workmanship though — we stand out because of how we operate.

Our hands-on owners are actively involved in day-to-day operations, ensuring that every job meets our high standards of quality and care. We also believe that great service shouldn’t come at an unreasonable cost. That’s why we offer competitive pricing — providing top-quality work without cutting corners or inflating costs.

We’re Committed To Quality — And It Shows

At Oasis Plumbing, Heating & Air Conditioning, we believe hard work and dedication should be recognized. In 2024, we proudly received the AC Pro Year Over Year Growth Award — a reflection of the trust our customers place in us and our commitment to improving every single day.

But for us, the real reward is knowing that our customers feel taken care of. We strive for excellence — not for the trophies, but because it’s the right thing to do for the people who rely on us.

Easy, Stress-Free Financing Options

Big projects shouldn’t come with a lot of stress. That’s why Oasis makes financing simple and convenient for homeowners across San Marcos and beyond. Here’s how it works:

  • 100% online application — Our secure online system lets you apply for financing quickly and easily from the comfort of your home.
  • Fast approvals — Don’t lose time waiting. Our financing partners deliver fast responses so you can move forward without delay.
  • Customizable payment plans — Whether it’s a full HVAC replacement or major plumbing work, we’ll help you find flexible financing that matches your needs.

With Oasis and our financing partners, GreenSky and Foundation Finance, investing in your home’s comfort is easy.

Protect Your Investment With Strong Warranties

At Oasis, we believe great service should come with great protection. That’s why we offer some of the best warranties in the industry to back up our work.

  • HVAC installations and replacements — Every new system installation or replacement comes with a 10-Year Labor Warranty. We stand behind every system we install — long after the job is done.
  • Plumbing services — Depending on the service, our plumbing work carries warranties ranging from 1 to 5 years. Gain peace of mind when you know your investment is protected with real, written guarantees.

When you choose Oasis, you’re not just getting a quick fix — you’re getting long-term peace of mind.

Ready To Experience The Oasis Difference?

Your home deserves more than a basic fix — it deserves real solutions, real communication and real care. At Oasis Plumbing, Heating & Air Conditioning, we bring those values to every service we offer.

Reach out today to schedule your free estimate and experience the difference of working with a local team that treats your home like it’s our own.