Rancho Bernardo HVAC

Rancho Bernardo HVAC Services

Serving San Diego County Since 1990!

John Stevenson Plumbing, Heating & Air Conditioning, Inc. is a locally owned and operated HVAC company serving Rancho Bernardo and the surrounding areas since 1990. We offer comprehensive HVAC services for your home or business, including repairs, maintenance, installations, and troubleshooting.

Our Rancho Bernardo HVAC technicians are NATE-certified, experienced, and fully licensed, and we stand by our work with a 100% customer satisfaction guarantee.

Call us at (760) 276-6690 for all your heating and AC service needs in Rancho Bernardo.

HVAC Services We Offer

Our Rancho Bernardo HVAC technicians can help you with a wide range of services, including air conditioning and heating repair and replacement, installation, maintenance, indoor air quality services, and duct cleaning.

We provide services for all types of HVAC equipment, including:

  • Central air conditioning systems
  • Central heating systems
  • Zoned heating and cooling systems
  • Ductless mini-split systems
  • Indoor air quality 

What Are The Most Common Signs You Need AC Replacement?

There are a few common signs that suggest it might be time to replace your air conditioner. Firstly, if your AC is not cooling your home as effectively as it used to or if it struggles to maintain a comfortable temperature, it could be a sign of a worn-out unit.

 Another indicator is if you frequently need to repair your AC or if it requires costly repairs. Additionally, if your AC is more than 10-15 years old, it may be less efficient and less reliable, making a replacement worth considering. 

Finally, if you notice a significant increase in your energy bills without any other explanation, it could be a sign that your AC is no longer working efficiently and a replacement might be necessary.

Why Choose Us for Your Rancho Bernardo HVAC Services?

At John Stevenson Plumbing, Heating & Air Conditioning, Inc., we're committed to providing our customers with 24/7 emergency services and a   personalized level of service for each job. We're proud to be locally owned and operated, and we take the time to get to know you and understand your needs.

Our Rancho Bernardo HVAC technicians are friendly and professional, and we treat your home with the respect it deserves.

Call (760) 276-6690 for HVAC services in Rancho Bernardo.

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
  • Should I replace or repair my AC unit?

    Many customers ask if they should repair a broken air conditioning unit versus a full replacement. Often, a well-maintained and newer AC unit will be able to be repaired depending on the issue. If it is a part under warranty, replacement of the part is a simple fix. However, if the AC is more than 10 years old, has not been regularly serviced, or is in need of a major repair, replacement is the best option. Our team will provide all available options for homeowners to consider.

  • 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.

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  • Based In Carlsbad, Serving a Wide Area
    2748 Loker Avenue West Carlsbad, CA 92010
    [Map & Directions]
  • Providing Service 6 Days a Week
    • Monday - Saturday

      8:00 AM- 7:00 PM

    • Sundays


  • Call Us 24/7 To Request Your Service

A Homeowner’s Best Friend

Expertise isn’t the only thing we have gained over the past three decades - check our our loyal customer base!
  • “I can't say enough great things about Patrick and the whole John Stevenson company.”

    - Holly G.
  • “Great job, the technicians explained everything so that I could make the best decision for my home.”

    - Victoria J.
  • “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.
  • “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.
  • “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.
  • “I have used John Stevenson numerous times over the past few years for both plumbing and heating issues.”

    - Phyllis S.