San Diego, CA Air Conditioning Repair

Schedule a Same-Day Air Conditioning Repair in San Diego

Air conditioner problems are stressful—you’re not sure what’s wrong, how much it’ll cost, or how long you’ll be without AC. At Guthrie & Sons, we’ve helped thousands of San Diego homeowners get through the same thing to great results. We’ll take a look, explain what’s going on, and fix it or set you up with a new system ASAP. Call now to schedule your air conditioning repair in San Diego, California—quick help is just a call away!

AC Repairs That Are Fast, Fair, and Fixed Right the First Time

Air conditioners don’t pick a convenient time to quit. It’s usually right when the heat kicks up and you’ve got a full house, a busy workday, or guests arriving. At Guthrie & Sons Heating, Air & Solar, we’ve been helping San Diego stay cool for over two decades—we know how to get your cool air back fast.

We’ve handled everything from sudden breakdowns to strange smells, loud noises, and uneven cooling. Whether it’s your home, rental, or commercial property, we’ll get there quickly, figure out what’s going on, and fix it right. We don’t believe in price gouging or using stressful situations to upsell you on things you don’t need. As a second-generation, family-owned company, we care deeply about this community and the service experience we provide. If your AC isn’t working or is behaving strangely, contact us today for your air conditioning repair in San Diego, CA.

Searching for an AC Repair Near Me? We Offer Same-Day Air Conditioning Repairs in San Diego

Searching for an AC Repair Near Me? We Offer Same-Day Air Conditioning Repairs in San Diego

From Chula Vista to Carlsbad, La Mesa to Oceanside, and La Jolla to Rancho Bernardo, our team covers just about every corner of San Diego. Whether you’re in a single-family home in Poway, a condo in Mission Valley, or running a small business in North Park, you can trust us to handle your AC repair.

If we can get to you today, we absolutely will. Our service trucks are fully stocked so we can fix most AC problems on the spot—no waiting around, no repeat visits just to grab a part. We know how uncomfortable things get when the AC goes out, and we’re ready to get you cooled off again with fast, same-day service.

Emergency AC Repair Services Are Available

If your AC stops working completely, starts blowing hot air, or trips the breaker in the middle of a heatwave, don’t wait it out. We’re here for emergency air conditioning repair in San Diego County. Call now, and we’ll head your way.

What’s Wrong With My AC? Signs You Need Air Conditioner Repairs

What’s Wrong With My AC? Signs You Need Air Conditioner Repairs

Your air conditioner doesn’t have to completely shut down to need a repair. In fact, one of the worst things you can do is keep running a system that’s clearly struggling because it often makes the problem worse and more expensive to repair.

If your AC is on but not working right, it’s time to call for your San Diego AC repair. Here are some common AC repair warning signs:

  • Warm Air Coming Out: Your AC is running, but the air feels warm—or the house never quite cools down. That’s a red flag.
  • Weak or Uneven Airflow: Some rooms stay stuffy while others get cold, or you notice the vents barely pushing out air. That’s usually a sign of a blocked or failing component.
  • Strange Noises: Clanks, squeals, buzzing, or clicks—new noises usually mean something is loose, worn, or about to fail.
  • Leaks or Moisture: Whether it’s refrigerant or condensation, moisture where it shouldn’t be can lead to bigger problems fast.
  • Turning On and Off: If your system turns on and off too frequently, it’s working harder than it should—and wearing itself out faster.
  • Higher Utility Bills: If your energy bills are climbing and your usage hasn’t changed, your AC may be working overtime to make up for a hidden issue.

If you’re comfortable doing a little AC troubleshooting, you can make sure the thermostat is set to “cool,” swap out a dirty air filter, or reset the breaker if the system has no power. These simple fixes might get things running again. But if that doesn’t help, it’s best to call an HVAC company for AC service. DIY AC repairs can cause serious damage to your home and system or void your warranty.

If the damage is severe or your system is nearing the end of its lifespan, you may need an air conditioning replacement. When that happens, our team will help you select a new air conditioner and get it installed quickly.

Expert Air Conditioning Repair Services From Our Local San Diego AC Repair Company

Expert Air Conditioning Repair Services From Our Local San Diego AC Repair Company

When temperatures rise across San Diego, your AC works hard to keep your home cool—and that’s often when issues start to show. From early signs like weak airflow or uneven cooling to complete breakdowns, our licensed, NATE-certified techs can help. At Guthrie & Sons, we provide trusted air conditioning repair in San Diego, California, with honest answers and fast, lasting repairs to keep your home comfortable year-round.

Here’s how we tackle the most common AC problems:

When your air conditioner runs but is blowing warm air, something’s off in the airflow or refrigerant cycle. Around San Diego, we often see this happen after long stretches of hot, dry weather or when filters and coils haven’t been cleaned in a while. Possible causes include:

  • Low refrigerant levels
  • Dirty evaporator coils
  • A faulty compressor

We’ll start with the basics—checking refrigerant pressure, cleaning coils, and testing system performance end to end. If it’s something minor like a dirty coil, the repair is quick and affordable. If it’s a compressor or refrigerant issue, we’ll explain what’s going on and give you straightforward options so you can decide what makes the most sense.

If your air conditioner won’t start, it’s often an electrical or control issue rather than a total system failure. In San Diego, that can happen after a power surge, or simply from age and wear. Common causes include:

  • A tripped breaker or blown fuse
  • A failed thermostat or capacitor
  • Internal safety switch lockout

Our team will run full diagnostics to find out why the system isn’t getting power. Replacing a capacitor or thermostat is typically quick and affordable, while deeper electrical issues can take a bit more time. Either way, we’ll get your system running safely and make sure the fix holds up.

If your air conditioner starts buzzing, rattling, banging, or making screeching sounds, it’s not just being noisy—it’s trying to tell you something’s wrong. Common reasons for strange AC sounds include:

  • Loose fan blades
  • Worn-out motor bearings
  • Failing belts or mounts

Sometimes the fix is as simple as tightening a part or swapping out a belt. Other times, it may involve replacing a motor or bearing. Whatever the cause, we’ll pinpoint the issue, explain what’s happening, and get your system running quietly again.

Seeing water around your indoor or outdoor unit usually means there’s a drainage or condensation issue. This is a common call we get during the cooling season. It often comes down to:

  • A clogged drain line
  • A cracked or rusted drain pan
  • Frozen condenser coils that have thawed

Most leaks are simple to fix once we clear the blockage or replace the part. If the leak’s been going on for a while and caused corrosion or water damage, we’ll explain the repair process and steps to prevent it from happening again.

Short cycling—when your AC starts and stops repeatedly—is rough on your system and your utility bills. It can be caused by:

  • Oversized system
  • Malfunctioning thermostat
  • Clogged air filter or dirty coils

When it’s something small like a dirty filter or coil, it’s a fast, inexpensive fix. If the problem points to sizing or compressor issues, we’ll give you clear information and help you decide whether repair or replacement is the smarter move.

Air Conditioner Repairs for All Types of Cooling Systems

No matter what kind of cooling system you have—central air conditioner or heat pump—our air conditioning repair services in San Diego cover it. We service all major brands and models, and we’ll start with a full system inspection so you know exactly what’s going on. Before we begin any work, we’ll walk you through the issue and give you a clear, upfront quote that we stick to.

Many Costly Repairs Can Be Prevented by Doing This One Thing

Many Costly Repairs Can Be Prevented by Doing This One Thing

Many of the AC repairs we see could’ve been avoided with a simple maintenance visit. Things like clogged filters, low refrigerant, or dirty coils don’t seem urgent—until your system quits on the hottest day of the year. That’s why regular air conditioner maintenance makes such a difference.

Routine maintenance from a professional HVAC technician takes about an hour and can prevent most of the issues that lead to costly breakdowns. Regular AC maintenance improves efficiency, helps your home stay cool even when temperatures rise, and extends the life of your equipment. It’s a small investment that keeps your system running better and saves you money over time.

Keep Repairs (and Costs) in Check With a Maintenance Plan That Works for You

Most heating and cooling companies offer some kind of regular maintenance plan, but ours is made to truly make your life easier and save you even more money! With the USA Membership Plan from Guthrie & Sons, you don’t have to worry about remembering when to schedule service or stressing over unexpected repair bills.

Here’s what you get:

  • We handle the scheduling for you
  • Priority service when it’s busy or extra hot
  • 15% off any repairs you might need
  • A lower service call fee
  • Upgraded 5-year warranty
  • Maintenance plans that are unique to your heating and cooling setup
  • Seasonal tune-ups that help your HVAC system run better and last longer

Want to join? Just ask your technician during your appointment, or give our office a quick call. We’ll get you set up in minutes.

Frequently Asked Questions

The $5,000 rule helps you decide if you should repair or replace your AC. Just multiply the age of your system by the estimated repair cost—if it’s over $5,000, replacement usually makes more sense. It’s a ballpark guide, not a hard rule, but it’s a helpful starting point.

Blown capacitors and low refrigerant are two of the most common repairs we see, especially during the summer. These issues can make your AC stop blowing cold air or not turn on at all. Luckily, they’re usually quick and affordable to fix if caught early.

The compressor is the most expensive part to replace—it’s like the engine of your AC. If it goes out and your unit’s older, it’s often more cost-effective to replace the whole system. That’s where the $5,000 rule or a good technician’s advice comes in handy.

In most cases, no—standard homeowners insurance doesn’t cover HVAC repairs unless the damage is caused by something sudden, like a fire or storm. Wear and tear or old parts aren’t covered either. But if you have a home warranty, that might include HVAC—always worth checking. At Guthrie & Sons, we offer a full range of HVAC services but are also here for helpful guidance, too. If you have any questions about your system or just want some friendly advice, let us know! We’re always happy to help in any way we can.

Heating and Cooling Offers You Can't Miss

Big savings, same great service. See what offers are available now in Carlsbad for our favorite customers.

  • INSTALLATION

*Anniversary Sale*
20% Off GulfCoat Coating

In honor of our 20th anniversary, you can get 20% off GulfCoat coating for your heat pump or air conditioning system ($190 value). This protective coating resists condensation and moisture from sea spray, humidity and other harsh environmental conditions while helping to extend the life and efficiency of your system. Not valid on HVAC rooftop or package units. Can be combined with 20% anniversary sale offers only. Restrictions apply. System must be coated by 11/30/25 to receive this offer.

  • INSTALLATION

*Anniversary Sale*
20% Off Insulation and Ductwork

In honor of our 20th anniversary, you can get 20% off ductwork and insulation. Increase the airflow and energy efficiency in your home. Valid on residential properties only. Can be combined with 20% anniversary sale offers and Federal Tax Credits only. Must mention offer at time of estimate appointment. Restrictions apply. See dealer for details. System must be installed by 11/30/25 to receive this offer.

  • INSTALLATION

*Anniversary Sale*
20% Off a New System

In honor of our 20th anniversary, you can get 20% off a new heater, air conditioner, or water heater installation. Valid on residential properties only. Not valid on HVAC rooftop or package units. Can be combined with 20% anniversary sale offers and Federal Tax Credits only. Must mention offer at time of estimate appointment. Restrictions apply. See dealer for details. System must be installed by 11/30/25 to receive this offer.

  • INSTALLATION

0% APR for 24 Months

Get 0% APR financing for 24 months on a new heating or air conditioning installation. 0% interest with 24 equal monthly payments.

Financing subject to credit approval. Valid on select systems only. Valid on residential properties only. Cannot combine with other offers. Must mention promo at time of estimate appointment. Restrictions apply. See dealer for details. Offer valid for an estimate appointment scheduled before 11/30/25.

Real Reviews From Real Customers

We do things differently, and our customers appreciate it. See what some of our thousands of satisfied customers have to say about working with us.

David Downhour profile pictureDavid Downhour
02:47 10 Nov 25
We needed a new A/C and furnace system. Vlad came by to listen and assess our needs, recommend our new Daikin, and put forth our best estimate.

Carson C. and Michael J. came by to install our unit. They were on time, extremely professional and worked diligently to complete everything. They listened to our needs throughout and made adjustments to our specifications. Carson did not leave until we were totally happy with our unit.

This was a great experience all around and I gladly recommend Guthrie and Son's for all your HVAC needs.
Rachel Phillips profile pictureRachel Phillips
22:24 02 Oct 25
We recently had our A/C replaced by Guthrie & Sons, and I cannot recommend them highly enough. After getting five different bids, Guthrie & Sons stood out immediately—not just on price, but on expertise and professionalism. They even brought their engineers out to ensure the work could be done the right way, which gave us tremendous peace of mind.

From start to finish, their team was outstanding. They worked incredibly hard, treated our home with respect, and left everything spotless—truly the cleanest job site I’ve ever seen after a major project. The installation itself was seamless, and the quality of their work shows in every detail.

If you’re looking for a company that combines deep knowledge, excellent craftsmanship, and genuine care for their customers, Guthrie & Sons is it. Absolutely five stars across the board!
Liz Staff profile pictureLiz Staff
17:27 02 Oct 25
We had a wonderful experience with Guthrie and Sons. Anthony was our estimator and he did a very thorough job of explaining all of our options! Matthew, Bryan, and Isaiah were our installers and they were very efficient, capable, and personable. Our home did not have an existing HVAC system so they had to build the whole thing in an older house that had undergone several additions. We were up and running in just three days. They left the worksite clean at the end of each day. We highly recommend Guthrie and Sons!
Neil Domingo profile pictureNeil Domingo
18:09 27 Sep 25
Kareen did an outstanding job with our HVAC system. From start to finish, he demonstrated professionalism, patience, and a strong commitment to getting the job done right. Even when faced with several unexpected challenges, he handled each one with skill and determination, never compromising on the quality of his work.

What really stood out was his problem-solving ability and willingness to go the extra mile to ensure everything was operating as it should. He communicated clearly throughout the process, kept us updated, and made sure we felt confident in the work being done.

It’s not often you come across someone who combines technical expertise with such a strong work ethic and positive attitude. We’re very grateful for his efforts and would highly recommend Kareen to anyone needing reliable HVAC service.
Trae Washburn profile pictureTrae Washburn
02:56 16 Sep 25
Professional from beginning to end

Vlad came out to provide an estimate and was able to size an HVAC system that worked well for my house.

They installed it quickly, without issue and helped me set up an app on my phone to control.

The system is working great to heat and cool my house and is whisper quiet.

Highly recommend going with Guthrie and Sons if you want a high quality experience for large and important purchases.
David Maycock profile pictureDavid Maycock
01:10 08 Sep 25
Our two old furnaces needed replacing and so we contacted Guthrie & Sons because of their good reputation. They sent Zach the next morning. He quickly verified that our two furnaces were beyond repair and Guthrie could supply and install suitable replacement funaces. He also suggested and explained alternative solutions, but we eventually decided to go ahead with furnace replacement. As soon as we notified Guthrie & Sons of our decision they arranged for Cristian and Pablo to come to our house the next day. They did a good job, explained clearly how to operate the new furnaces and thermostats, and were respectful of our house.
Erin Guthrie profile pictureErin Guthrie
19:21 03 Sep 25
Daniel was quick and professional. Fixed our AC problem in an hour and the price was very transparent and beyond fair. Didn’t push the subscription maintenance service, simply said it would be a good idea due to the age of our unit. Highly recommend!
Tomankhamen profile pictureTomankhamen
18:03 28 Aug 25
We had to replace a thermostat that had gone bad. In the old days, I could do it myself. Now, though, the programming of the thing requires technical knowledge that I don’t have. The Guthrie guy that did the job was courteous, professional, and as fast as anyone could be. This has been our experience with Guthrie & Sons for every repair, retrofitting, and equipment replacement that they’ve done for us over quite a number of years now.
Gabrielle Benjamin profile pictureGabrielle Benjamin
18:15 25 Aug 25
Carson Snyder and co-worker (Pablo?) did a great job on the installation of the mini-split cassette. They're hard working, they clearly knew what they were doing, polite, cleaned up afterwards, true professionals. I'd gladly recommend these two gentlemen. However, the Company was not good at keeping me informed although I mentioned to the salesman up front that I was information driven. They were short on details and communicated seldom. Anthony did tell me about the government program available that reduced my cost. I wouldn't have known about it if he didn't mention it. The City did approve their work and signed off on the permit which is an indication of the job done right. I think the Company can improve their customer service
robert johnson profile picturerobert johnson
00:53 11 Aug 25
Very pleased with the service we received from Guthrie & Sons! Our AC system needed to be replaced after a huge leak. The tech that came out for diagnosis, Mario, took the time to explain the issue to us, as well as our options for repair. They came out on a Saturday to diagnose and it was fixed the following Tuesday. Matthew was the worker that completed the repair and he did an excellent job. Pricing was reasonable. Much more reasonable than the first company we had come out to take a look. We upgraded our system and our SDG&E bill has already gone down. Highly recommend!
K N profile pictureK N
15:52 01 Aug 25
Very knowledgeable and professional. Quoted product was high quality and fair pricing. I highly recommend We ended up not going with them only due to the fact we were also getting Solar and ended up going with one company for our project but I would definitely do business with this company in the future if we need it!
LeRoy Lafferty profile pictureLeRoy Lafferty
17:25 31 Jul 25
We had Guthrie and Sons replace our 50 year old house heater with a heat pump. We are very satisfied with the installation performed by Matthew and Andriy. We were impressed with the detail of their work. They paid particular attention to the required sealing and insulating of the system. Even the HERS testing inspector was impressed with their work. We were also impressed by their professionalism and honesty. They gave us an unexpected partial refund off our signed contract.
Nannette Moyer profile pictureNannette Moyer
17:41 29 Jul 25
We have been using Guthrie & Sons for 3 years and I really can’t say enough good things about them. Our technician Mario was incredibly helpful with our most recent AC issue. He spotted the problem quickly and was very knowledgeable when explaining what was happening. I appreciate their honest and fair pricing and would recommend to family and friends. Glad to have an honest company especially with all the price gauging company’s out these days.
Meghan Venanzi profile pictureMeghan Venanzi
23:31 22 Jul 25
We were incredibly impressed with the prompt and professional service! We called on a Saturday morning, and within just a few hours, a technician was at our home. With the recent heat, getting our AC back up and running was a top priority—and they delivered! Mario clearly explained our options and provided a hassle-free solution that was both quick and effective. The repair was completed shortly after we gave the go-ahead. We’ll absolutely be using them again for any future HVAC needs. Highly recommend this company for their affordability, efficiency, and friendly service—we’re already telling our family and friends! Thanks again Guthrie & Sons!
Laurie Edwards profile pictureLaurie Edwards
22:10 16 Jul 25
We were very happy from start to finish. Vlad did a great job in helping us decide what would be best for our house and our needs and the installation crew were the very best. Thank you Guthrie and Sons for a job well done.
Patrice Makovic profile picturePatrice Makovic
17:45 09 Jul 25
Last summer, I used Guthrie and Sons to replace my heating system with a new one and added an air conditioning unit. We also added two different zones in the house to be able to turn the system on independently from one zone to another. From the first contact to the six month maintenance visits, everything has gone smoothly. There were a couple of hiccups, but the company is very responsive and I have never had an issue with them not promptly responding and taking action to figure out and solve any problem. I highly recommend this company.
Carrie Reese profile pictureCarrie Reese
17:06 08 Jul 25
Guthrie & Son's did an amazing job on our new AC units. From sales through install they were all knowledgeable and helpful. They were very quick to get us all setup and when our home posed some unexpected issues they were able to pivot quickly and resolve them. I'd highly recommend them!
Kenneth Adelson profile pictureKenneth Adelson
16:04 07 Jul 25
Had use Guthrie in the past for HVAC service, this time had them install a solar attic fan and additional vent. The service, as it had been the first time, was professional, polite, and on schedule. Pricing was fair (and consider that they offered a repeat customer discount without having to be asked). Would be happy to use them again when the need arises.
I offer 4 stars because I'm not a grade inflation sort. Three is sufficient, four is better than average. Five is reserved for knock my socks off amazing in ways I didn't expect - doesn't happen very often.
Patrick Smith profile picturePatrick Smith
21:42 27 Jun 25
We had central heat and air put in two a year and a half ago. We've need to make a few adjustments to airflow to rooms since then. Each time, they are onsite withing 1-2 days and have resolved the issue each time. Their team is professional and incredibly friendly and knowledgeable. Very happy we went to Guthrie & Sons.
Bennie Beans profile pictureBennie Beans
15:41 12 Jun 25
Mario was knowledgeable and courteous. He made sure our system would be sized right and that our existing ductwork was able to support the new system. The install team were prompt and efficient. They installed drop cloths and cleaned up inside and out after the job. So far I’ve been very happy with the work Guthrie and Sons have done for us.

Schedule Your San Diego Air Conditioning Repair Today

Dealing with a broken air conditioning unit is frustrating enough—you shouldn’t have to chase down help or deal with contractors who drag things out and don’t even fix the problem. At Guthrie & Sons Heating, Air & Solar, we make sure everything is taken care of and you’re completely satisfied with your service experience. You’ll get reliable repairs and dependable service every time. One call gets you a skilled technician, a clear explanation, and real results. You don’t want us to come back next week for the same thing, and we don’t want that for you either!

Get the fast, friendly, and honest service that you deserve with Guthrie & Sons. Schedule your air conditioning repair in San Diego, CA, with us today.

8248 Ronson Road
San Diego, CA 92111
(619) 269-3013
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