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San Marcos, CA

San Marcos Plumber

The Top Choice for Heating & Air Conditioning Repair & Replacement Services in San Marcos, CA

At John Stevenson Plumbing, Heating & Air Conditioning, we understand how important it is to have a reliable heating, ventilation, and air conditioning (HVAC) system in your San Marcos home or business. That’s why we offer top-notch HVAC services to keep your indoor environment comfortable and healthy year-round.

Our team of skilled HVAC technicians has the expertise and experience necessary to handle a wide range of HVAC issues, from routine maintenance to emergency repairs and installations. We use the latest tools and technology to diagnose and fix problems quickly and efficiently, so you can rest assured that your HVAC system is in good hands.

Here are some of the HVAC services we offer in San Marcos:

  • HVAC Repair: If your HVAC system is malfunctioning, we can diagnose the problem and provide prompt repairs to get it back up and running.
  • HVAC Installation: Whether you’re building a new home or replacing an old HVAC system, we can install a new system that meets your needs and fits your budget.
  • HVAC Maintenance: Regular maintenance is essential to keep your HVAC system running smoothly and efficiently. We offer comprehensive maintenance services to keep your system in top shape.
  • Indoor Air Quality: Poor indoor air quality can have a negative impact on your health and comfort. We can help you improve your indoor air quality with air filtration systems, air cleaners, and other solutions.

At John Stevenson Plumbing, Heating & Air Conditioning, we are committed to providing our San Marcos customers with reliable and affordable HVAC services. Contact us today at (760) 276-6690 to schedule an appointment or learn more about our services.

Licensed Plumbers in San Marcos

Looking for a local San Marcos plumber to help you with a plumbing repair, maintenance, or installation job? Look no further. As a trusted service company that has been in business since 1990, John Stevenson has the expertise, tools, and training to complete your plumbing service quickly, affordably, and conveniently. We offer flexible scheduling and offer same-day and emergency services whenever possible. 

Give us a call to request an appointment with a plumber in San Marcos who can help you with:

  • Clogged drains
  • Broken water heaters
  • Leaking pipes
  • Backed up toilets
  • Dripping faucets
  • Corroded water lines
  • Poor water quality
  • And more

Our San Marcos plumbing services are designed for your complete satisfaction. To work with a trusted plumbing company near you, give us a call today at (760) 276-6690.

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

  • What's a Pre-Installation Evaluation? Does My New A/C Need One?
    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.
  • Is Your Home's Ductwork & Design Able to Handle a New A/C System?
    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.
  • What Type of Central A/C Unit Should I Install?
    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.
  • How Much Does it Cost To Get My Air Conditioning Unit Installed?
    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.
  • Why Would My Air Conditioner Stop Working?
    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.
  • Who Can Replace my 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.

Ready to Get Started?

Call (760) 276-6690 Now!
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Always Close By 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.

  • Encinitas
  • Rancho Santa Fe
  • Escondido
  • San Marcos
  • Cardiff by the Sea
  • Ramona
  • Valley Center
  • Bonsall
  • Fallbrook
  • Leucadia
  • Oceanside
  • Carlsbad

A Homeowner's Best Friend

Expertise isn't the only thing we have gained over the past three decades - check out our loyal customer base!
    “Such a great experience!”
    “I can't say enough great things about Patrick and the whole John Stevenson company.”
    - Holly G.
    “Great Experience!”
    “Great job, the technicians explained everything so that I could make the best decision for my home.”
    - Victoria J.
    “Highly Recommend!”
    “I have been using John Stevenson’s services for about 7 years now and am really happy with all the services provided so far: new heater installation and yearly checkup/tune-up; new tankless water heater installation and yearly flush.”
    - Flavia P.
    “Very Knowledgeable!”
    “The thing about John Stevenson Plumbing is that it is simply the best company of its type in the region. The technicians are smart, personable, always courteous and helpful, knowledgeable and fun to get to know. They do their jobs on time and on budget and”
    - John H.
    “Definitely Recommend!”
    “Luis was great! Fixed a leak in a gas line to our Guest House. Work was done quickly and professionally with excellent communication to me about the process.”
    - Pam L.
    “Excellent Work!”
    “I have used John Stevenson numerous times over the past few years for both plumbing and heating issues.”
    - Phyllis S.
    “Very Pleased!”
    “Scheduling was easy. Received a call 30 minutes before technicians arrived. John, the lead man explained the work to be done. He and his apprentice Gilbert were courteous and friendly.”
    - Phil H.
    “Extremely Professional!”
    “We really enjoyed the experience and the professionalism from John Stevenson Plumbing. Thomas came out and did the initial inspection and troubleshooting of our furnace.”
    - Nancy C.