Oceanside, CA

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Providing Service 6 Days a Week. Monday – Sunday, 8:00 AM – 7:00 PM

You can rely on us for fast, effective services. As part of our 5 Star Service Guarantee, we promise to value your time, provide knowledgeable technicians, and dedicate ourselves to your full happiness with all of our services.

Serving San Diego County and Orange County

Oceanside HVAC & Plumbing Services

Your One-Stop Shop for All Your Heating, Air Conditioning & Plumbing Needs

At John Stevenson Plumbing, Heating & Air Conditioning, we understand the importance of a comfortable and safe living environment. Our team of experts offers top-notch HVAC and plumbing services in Oceanside, CA to ensure your heating, cooling, and plumbing systems are functioning efficiently and effectively.

Plumbers in Oceanside

Our Oceanside plumbers are always available to provide you with top-quality plumbing repair, maintenance, and installation services. Here’s a brief list of signs it’s time to schedule a service call with our team:


  • Persistent Low Water Pressure: If your faucets or showerheads are experiencing consistently low water pressure, it could be a sign of a hidden leak, sediment buildup, or a more serious issue within your plumbing system.

  • Slow Draining Fixtures: A slow-draining sink, bathtub, or shower indicates a blockage in the drain. DIY methods may not fully resolve the issue, so it’s best to call a plumber to prevent further damage.

  • Frequent Clogs: If you’re dealing with recurrent clogs in your sinks, toilets, or drains, it may suggest a deeper plumbing issue, such as tree roots invading your pipes or a damaged sewer line.

  • Unpleasant Odors: Foul smells emanating from drains or fixtures can be a sign of backed-up sewage or a malfunctioning sewage ejector pump. This requires prompt attention from a plumber.

  • Water Stains or Mold Growth: Water stains on walls or ceilings, or the presence of mold or mildew, can signal an ongoing leak within your plumbing system.

  • Noisy Pipes: Banging, rattling, or other unusual sounds coming from your pipes could indicate loose connections, water hammer, or even high water pressure, all of which should be addressed by a plumber.

  • Frozen Pipes or Pipe Leaks in Cold Weather: Freezing temperatures can lead to burst or leaking pipes. It’s crucial to call a plumber immediately to prevent further damage and ensure proper repairs.

  • Sudden Spike in Water Bills: If your water bill unexpectedly rises without a corresponding increase in usage, it’s a strong indicator of a hidden leak that needs professional attention.

  • Visible Corrosion or Rust: Corrosion on pipes is a sign that they’re deteriorating and may be at risk of failure. A plumber should assess the situation.

  • Lack of Hot Water: If your water heater is not producing hot water or you notice inconsistent temperatures, it may require professional water heater repair.

When you observe any of these signs, it’s advisable to contact a licensed and experienced Oceanside plumber from John Stevenson. We have the expertise and equipment to diagnose and fix plumbing issues efficiently and prevent potential further damage to your home or business.

Need a plumber in Oceanside, CA? Call (760) 276-6690 now or contact us online to make your appointment.

Technician teaching students beside John Stevenson Plumbing, Heating & Air Conditioning service van

Trustworthy Heating & Cooling Technicians in Oceanside

Our HVAC services include installation, repair, and maintenance of a wide range of heating and cooling systems, including central air conditioning, furnaces, heat pumps, and more. Whether you need a new system installed or your existing unit repaired, our skilled technicians have the expertise to handle any HVAC issue.

We also offer routine maintenance services to ensure your HVAC system is functioning at peak performance. Our maintenance services include cleaning and inspecting your systems to prevent potential problems and increase energy efficiency.

Learn more about our services!


  • AC Repair

  • AC Replacement

  • Furnace Repair

  • Furnace Replacement

  • Heat Pump Installation & Service

  • Ductless Mini-Split Installation & Service

  • Seasonal HVAC Maintenance

  • Indoor Air Quality Solutions

Why Choose Us?


  • We prioritize customer satisfaction and provide quality services at affordable prices

  • With our emergency service availability, you can rest assured that we are always available to assist you with any HVAC or plumbing need

  • We’ve been in business since 1990 and have earned the trust of numerous happy clients throughout the North San Diego County area

  • We offer a selection of valuable online coupons to help our customers save even more money

Don’t let a malfunctioning HVAC system affect your comfort and safety. Contact us today to schedule an appointment with our experienced Oceanside HVAC technicians and enjoy the benefits of a comfortable and efficient living space.


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What Makes Us a Community Name?

Benefits of Working with Our Expert Team

Drug Tested & Background Checked Technicians

Upfront Pricing — You’ll Never Pay More Than You’re Quoted

Expert Advice From Professional, Licensed and Certified Technicians

We Stock Enough Parts in Our Trucks to Do 93% Of Repairs on the Spot

Flexible Scheduling – Ask About Same-Day or Emergency Service

5 Star Service Guarantee Includes Service Tailored to Your Needs & Budget

Frequently Asked Questions

In short, yes. A first step is conducting an energy audit to determine the energy load for your home. Calculating the load tells the experts at John Stevenson Plumbing, Heating & Air how much heat your house gains throughout the day & what size air conditioner will work best to keep it cool. This is critical as most A/C installation issues stem from an improperly-sized air conditioning unit.

Often your old, existing ducts can’t handle the airflow of a newly installed air conditioner. Any upgrades to accommodate a new system will likely increase the cost to install an A/C unit, but will ultimately help you avoid costly, high energy bills & hot rooms in the future.

Here’s where the load calculation comes into play, as you want to pick the right size A/C unit to install – either too big or too small of an A/C unit can lead to costly repair or replacement down the road. Call the HVAC professionals at John Stevenson Plumbing, Heating & Air, they’ll know which A/C unit is perfect to install in your home at the lowest price.

The price of replacing your air conditioning unit depends a lot on the size of the unit you need to fit the size of your house. But no matter what unit you pick out for your home, ask an expert at John Stevenson Plumbing, Heating & Air for fast answers & reliable service. Trained technicians can come to your house to give you an upfront, transparent installation report, as well as consult you on what unit your home will need.

Breakdown of your home A/C unit can stem from many different things, from an electrical issue to the compressor being misaligned or broken. Luckily for you, the team at John Stevenson Plumbing, Heating & Air is trained in diagnosing the problem and presenting you with a competitive price to fix or replace and install your new A/C unit.

Our technicians at John Stevenson Plumbing, Heating & Air can replace your air conditioning unit. An A/C unit is something that will be a part of your house for many years, and it is important that it is installed correctly to keep your energy costs low and your unit working at top performance. Our team at John Stevenson Plumbing, Heating & Air has top-quality, highly-trained technicians that will come to your house to help you to make an informed decision on which unit to buy. Then, we can properly install your air conditioning unit.

In short, yes. A first step is conducting an energy audit to determine the energy load for your home. Calculating the load tells the experts at John Stevenson Plumbing, Heating & Air how much heat your house gains throughout the day & what size air conditioner will work best to keep it cool. This is critical as most A/C installation issues stem from an improperly-sized air conditioning unit.Often your old, existing ducts can’t handle the airflow of a newly installed air conditioner. Any upgrades to accommodate a new system will likely increase the cost to install an A/C unit, but will ultimately help you avoid costly, high energy bills & hot rooms in the future.Here’s where the load calculation comes into play, as you want to pick the right size A/C unit to install – either too big or too small of an A/C unit can lead to costly repair or replacement down the road. Call the HVAC professionals at John Stevenson Plumbing, Heating & Air, they’ll know which A/C unit is perfect to install in your home at the lowest price.The price of replacing your air conditioning unit depends a lot on the size of the unit you need to fit the size of your house. But no matter what unit you pick out for your home, ask an expert at John Stevenson Plumbing, Heating & Air for fast answers & reliable service. Trained technicians can come to your house to give you an upfront, transparent installation report, as well as consult you on what unit your home will need.Breakdown of your home A/C unit can stem from many different things, from an electrical issue to the compressor being misaligned or broken. Luckily for you, the team at John Stevenson Plumbing, Heating & Air is trained in diagnosing the problem and presenting you with a competitive price to fix or replace and install your new A/C unit.Our technicians at John Stevenson Plumbing, Heating & Air can replace your air conditioning unit. An A/C unit is something that will be a part of your house for many years, and it is important that it is installed correctly to keep your energy costs low and your unit working at top performance. Our team at John Stevenson Plumbing, Heating & Air has top-quality, highly-trained technicians that will come to your house to help you to make an informed decision on which unit to buy. Then, we can properly install your air conditioning unit.

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