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 Maintenance

Carlsbad AC Maintenance

Schedule Your AC Service Today 

Let’s face it, air conditioning is a necessity even in San Diego. While we enjoy near perfect weather year round, we do have a few months with extreme heat waves, and every year it seems to get hotter for longer. When the temperature is breaching triple digits, AC repair is something we will all have to have performed.

If you are searching for the right home AC repair service, look no further than John Stevenson Plumbing, Heating & Air. We have some of the best air conditioning specialists ready to help you achieve absolute home comfort in even the hottest summer months. AC Maintenance In Progress

During Our Tune Up, Some of the areas we will check include:

  • Clean or replace filters
  • Inspect the condensate drain
  • Clean evaporator and condensing coils
  • Check safety controls
  • Check refrigerant level, and inspect for leaks
  • Check amperage and electrical connections
  • Adjust blower components
  • Ensure system starts, runs, and shuts off as it should
  • Test the thermostat

With annual service, homeowners can keep their system running at the proper performance and avoid costly repairs. Ideally, homeowners should schedule seasonal maintenance prior to the heatwave. Spring is the best time to get on an annual tune-up schedule — consider it spring cleaning for your AC! This way, when you need air conditioning most, you can rest assured your system will keep you cool.

Air Conditioning Maintenance Tips

Just as important as routine professional HVAC service, homeowners can help to maintain the integrity of their system throughout the year.

  • Keep Units Clear Of Obstructions
  • Rinse Outside Coil With Water
  • *Check Air Filter
  • Turn Off Humidifier
  • Check Drain For Clogs
  • Check Thermostat
  • Schedule Regular Maintenance

*Your AC, and furnace, system air filters should be changed or cleaned regularly for the best efficiency. If your system has a reusable filter, simply take it out and clean it with mild soap and water and let it dry fully before putting it back. Our team recommends changing filters every 3 months. 

Air Conditioning Repair 

Poorly maintained or older systems can cause issues and sometimes result in the need for emergency AC repair.

Some of the common problems are leaks causing the system to lose refrigerant. This happens in older systems. While some AC leaks can be repaired, often this signals it might be time to consider replacement.

The fan motor in the outdoor condenser can also break down. It is exposed year round to the elements. While it is designed to weather the outdoors, if it is not properly maintained, dirt and debris can affect its working condition. Luckily, in an otherwise working AC system, most fan motor problems can be swiftly repaired.

Electrical components within the system can also cause AC failure. Components that keep the AC working, such as the capacitor and contactor unit are common failures. Signs that there is a failure include cool air not coming into the home. Wires can also become worn, or chewed through by outdoor rodents. In a properly maintained system, these repairs can be made and get homeowners back to cool status in no time.

Most AC issues occur from lack of maintenance, or improperly sized systems. These can lead to inefficiencies, making the system work harder. Most systems should last a long time, but if the system is 15 years or older, sometimes replacing it with a high efficiency system is the best option.

Air Conditioning Replacement 

AC Maintenance Tools

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. 

Another major factor in AC replacement versus repair is age. As systems age, they lose some efficiency. If they are not maintained, this will only lessen the lifespan of the air conditioning system. Our team recommends replacing older systems to more high efficiency systems and performing regular maintenance to get the most out of your system. Each year, systems become more and more efficient, so a newer AC may be the best answer. This can also help save money on energy costs. 

Our team will perform an extensive evaluation of your AC and provide an estimate to replace it designed specifically for your home cooling needs and property. An improperly sized system will only cause problems – that is why it is important to hire HVAC specialists. 

Our Promise To You Is To Perform The Correct AC Repair, Maintenance and Installation Services At An Honest Price 

One of our commitments to our customers is ensuring that all of our AC services are performed to solve the problem long term. We do not believe in performing unnecessary repairs that may or may not fix the larger problem.  

When our customers call us, we will perform a thorough evaluation of the entire system. Often, we find that the system only needs a deep cleaning and tuning service. We offer complete AC maintenance to keep your unit working at peak condition. We will also take this time to inspect the thermostat and educate homeowners on how to get the most out of efficient thermostat scheduling.


What To Expect From Our AC Repair And Maintenance Services 

We value your time and investment, and know that dealing with a problem in your air conditioning is never fun, especially in the height of a San Diego heatwave. Our team is equipped to handle every AC repair need that comes our way. We use only the highest quality materials, and our team has the most extensive training in the county. 

If repair is not an option, we will provide multiple replacement solutions to fit your home comfort needs. We will assess the property and ensure that all of our options are the right size and fit for your family and budget. Our estimates are uniquely designed and tailored for each customer.  

After completion of work, our expert HVAC specialists will walk you through the job and take the time to answer any remaining questions; it’s all part of our 5 Star Service Guarantee!

Our customer service team will then follow up within 24 hours to make sure you are happy.

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.

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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 760-276-6690

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.