We are thrilled to announce a significant milestone in our journey. Complete Comfort Plumbing, Heating & Air Evolves into John Stevenson Plumbing, Heating & Air Conditioning, Inc. We are excited about the future as we continue to strive for excellence in all our endeavors. Thank you for your trust and continued support! 

AC Replacement

AC Replacement in Carlsbad, CA

Also Serving Surrounding Areas & North San Diego

One of the best indicators of an AC in need of replacement is frequent repairs. If you find yourself scheduling multiple repairs, it is a sign that the system is no longer working as it should. Much like an older vehicle, once one part begins to fail on your AC, it is only a matter of time before it will break down completely. That's why it's imperative you reach out to the Carlsbad air conditioning team at John Stevenson Plumbing, Heating & Air Conditioning, Inc. at the first sign of a problem. 

Our pros will provide thorough diagnostics of your current system followed by an honest assessment of the state of your air conditioner. If replacement is deemed the best option, we will perform the service with accuracy and efficiency. AC Unit

Call to Schedule an Appointment With Our Licensed & Certified Technicians 

When Should I Replace My AC Unit?

California can be sweltering during the warm summer months, and having a reliable air conditioner is crucial to staying cool and comfortable. However, like all appliances, AC units will eventually break down. Therefore, to avoid increased energy bills and costlier repairs, it’s important to understand when this system should be replaced. One primary factor to consider is the age of your unit. Typically, if your air conditioning system is older than 12-15 years, it's time to start considering a replacement. However, that is not the only indication that a new air conditioner is needed.

It May Be Time to Replace Your Air Conditioner if You Notice: 

  • That there are strange sounds coming from the unit, such as rattling, clanking, or rumbling noises
  • That the system keeps turning on and off in quick, short bursts, often referred to as short cycling
  • That there is a decrease in airflow throughout your property
  • That the AC unit still uses R-22 Freon refrigerant
  • That there has been a decline in your home’s overall air quality
  • That the system struggles to produce cool air
  • That there are burning odors emitting from the system when it's running 
  • That the air conditioner is leaking refrigerant  

If your AC unit is exhibiting any of the above signs, don’t hesitate to reach out to the experienced Carlsbad air conditioning replacement experts at John Stevenson Plumbing, Heating & Air Conditioning, Inc..

Contact our team today at (760) 276-6690 to schedule an appointment for air conditioner replacement in Carlsbad or beyond! Financing options are available.

What Is a Good Seer Rating for an Air Conditioner?

When it comes time to replace your air conditioner, one important factor you’ll want to consider when looking for a new system is the SEER rating. SEER stands for Seasonal Energy Efficiency Ratio, and it is a measurement that gauges the cooling output of an air conditioner divided by the energy it uses in a session, which ultimately determines how efficient the unit is. Overall, the higher the SEER rating, the more energy efficient the unit is at cooling your home. In California, the minimum SEER rating for air conditioners is 15, or 14.3 for SEER2 ratings, based on new regulations. However, some recommend investing in a system with a SEER rating higher than the minimum. 

While selecting an air conditioning unit with a higher SEER rating can ultimately lead to lower energy bills and a more eco-friendly home, you should always speak with a professional Carlsbad AC replacement technician to determine what SEER rating is best for your home's individual needs. 

New Energy Efficient AC Systems

As air conditioning systems age, they begin to lose efficiency. Additionally, a lack of maintenance will only lessen the lifespan of your AC unit. That's why our team not only recommends replacing outdated air conditioners with more high efficiency systems, but also recommends investing in regular maintenance to get the most out of your new unit. AC Units

Here to Assist With All Your Air Conditioning Replacement Needs

At John Stevenson Plumbing, Heating & Air Conditioning, Inc., we strive to provide our clients with the highest level of service possible. Our team of expert technicians are committed to excellence, ensuring that our clients throughout Carlsbad, La Jolla, and Del Mar, receive tailored services that are both efficient and effective. From up-front pricing to 5-star service and flexible scheduling, we aim to make the AC replacement process as seamless as possible. 

Reach out to our Carlsbad AC Replacement specialists online or at (760) 276-6690 today!

Contact Us

Our team will perform an extensive evaluation of your AC and provide an estimate to replace it. We can help you choose a system that is specifically suited for your home cooling needs. An improperly sized system will only cause problems — that is why it is important to hire HVAC specialists.

Contact us online or give us a call at (760) 276-6690 to get started today!

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.

  • 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.

Ready to Get Started?

  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please enter your address.
  • Please make a selection.
  • Please enter a message.
  • By submitting, you agree to be contacted about your request & other information using automated technology. Message frequency varies. Msg & data rates may apply. Text STOP to cancel. Acceptable Use Policy
  • 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.