San Diego, CA Air Conditioning Repair

Schedule a Same-Day Air Conditioning Repair in San Diego

AC problems are the worst! You’re hot, the house feels stuffy, and now you’ve got one more thing to deal with. At Guthrie & Sons, we’ve helped thousands of San Diego homeowners get through AC issues 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, do they? 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, California, stay cool for over two decades, and we know how to get your AC 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.

We’re Your Local San Diego Air Conditioner Repair Company

We’re Your Local San Diego Air Conditioner Repair Company

Searching for an AC repair near me? We work in La Jolla, North Park, Tierrasanta, Mira Mesa, Mission Valley, Rancho Bernardo, Linda Vista, Serra Mesa, Pacific Beach, Clairemont, and more. Need AC repair services in Oceanside, Chula Vista, Carlsbad, La Mesa, El Cajon, Poway, Escondido, or Encinitas? No problem! We offer same-day air conditioning repairs in San Diego County.

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 or try to fix it yourself. Guthrie & Sons is always here for your emergency air conditioning repair in San Diego, CA. Call now, and we’ll head your way!

Noticing Any of These AC Issues? Schedule Air Conditioning Repairs With Us

Noticing Any of These AC Issues? Schedule Air Conditioning Repairs With Us

Your air conditioner doesn’t have to quit completely to need attention. In fact, letting it run while it’s clearly struggling can make the damage worse and the repair more expensive.

If your AC is running but not cooling the way it should, it’s time to schedule your San Diego AC repair. Here are some common warning signs that air conditioning repairs are needed:

  • Warm Air Coming Out: If the air isn’t cold, your AC isn’t doing its job, and running it like that only wastes money.
  • Weak or Uneven Airflow: Poor airflow means your system is struggling, and the longer it runs that way, the more strain it takes on.
  • Strange Noises: New clanking, buzzing, or screeching sounds are warning signs, and ignoring them can turn a small fix into a big repair.
  • Leaks or Moisture: Water where it shouldn’t be can damage your system and your home fast.
  • Short Cycling: Constantly turning on and off wears your AC down quickly and drives up energy costs.


If you’re comfortable doing a little air conditioning 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. But if that doesn’t help, it’s best to call your local San Diego AC service. DIY air conditioning repairs can cause more damage, be dangerous, and void your warranty. Call or book online today!

What’s Wrong With My AC? How We’ll Handle Your Air Conditioner Repair

What’s Wrong With My AC? How We’ll Handle Your Air Conditioner Repair

We might have some pretty wonderful weather here, but when summer hits and temperatures climb into the 80s and 90s, it gets uncomfortable fast. Coastal breezes don’t always reach inland neighborhoods, and your AC ends up working overtime. That’s when you need people who really know what they’re doing. That’s us.

Our licensed, NATE-certified technicians are among the best in the industry, trained to diagnose and fix problems the right way. It’s why our air conditioning repair services are relied on and recommended throughout San Diego.

Your system is running, but the house still feels warm and sticky. That usually means something in the cooling cycle isn’t doing its job. We provide San Diego, CA, air conditioning repair services for issues like low refrigerant, dirty evaporator coils, or a compressor that’s starting to fail.

Our air conditioning technicians check pressures, inspect the indoor and outdoor coils, and test the system from start to finish. Once we know why your air conditioner isn’t cooling, we explain it clearly and complete the air conditioner repair so you can feel cold air coming through the vents again.

You lower the thermostat and nothing happens. No sound, no fan, no outdoor unit kicking on. In many cases, this points to an electrical issue, which is something our experienced air conditioning contractors can safely handle.

It could be a tripped breaker, a failed capacitor, a faulty thermostat, or a safety switch that shut the system down. Our air conditioning technician will trace the power path step by step to see where it stops. You can rest assured that our air conditioning specialists focus on fixing the underlying cause so the system starts again reliably, not just temporarily.

Air conditioners aren’t silent, but they shouldn’t be loud. If you’re hearing banging, rattling, buzzing, or screeching, something inside the unit is loose, worn, or out of alignment. That’s when it’s time to call for professional air conditioning repair services.

Loose fan blades, worn motor bearings, or failing mounts are common culprits. Our air conditioning experts open the unit, locate the exact source of the noise, and repair or replace the damaged part before it turns into a bigger and more expensive breakdown.

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, or 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.

When your AC kicks on, runs briefly, then shuts off again—over and over—it’s called short cycling. This puts extra strain on the system and drives up energy bills. Our air conditioning repair service can be counted on to correct this problem as well.

The cause might be an oversized system, a malfunctioning thermostat, or restricted airflow from dirty filters or coils. Our air conditioning technicians test airflow, controls, and system performance to stop the constant cycling and help your system run the way it was designed to.

Air Conditioning Services for All Types of Cooling Systems

At Guthrie & Sons, our San Diego AC services cover residential air conditioning repair and:


We repair air conditioning systems of all makes and models, including central air conditioners and heat pumps. If an air conditioner repair isn’t possible due to major component failure or discontinued parts, we’ll recommend a high-quality replacement instead.

The same goes if your system is significantly older and you’ve been having frequent breakdowns. A new air conditioning system will be more reliable and cost less to run. You can always take a look at our pricing information and try our free online quoting tool to see what your project might look like. Financing is also available for larger projects or new installations.

Many Costly Repairs Can Be Prevented by Doing This One Thing

Many Costly Repairs Can Be Prevented by Doing This One Thing

A lot of expensive HVAC repair calls start with small issues that are easy to miss. Clogged filters, dirty coils, and low refrigerant don’t always seem urgent—until your air conditioning systems stop cooling on the hottest week of the year. Regular HVAC maintenance keeps those small problems from turning into major breakdowns. Most tune-ups take about an hour, but can add years to the life of your equipment. Staying ahead of problems is always easier—and less expensive—than reacting to them.

Enroll in Our Maintenance Plan to Protect Your Home and Wallet

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 stress as much about your system’s condition.

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 and save on your home’s HVAC services? 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 is a quick way to weigh repair versus replacement. You multiply the age of the system by the repair cost—if the total is over $5,000, replacement may make more sense. It’s not a strict formula, just a helpful guide when deciding whether to move forward with a major air conditioning unit repair.

If your system is blowing warm air, running constantly, making unusual noises, or causing higher energy bills, it’s time to have it checked. Weak airflow, uneven temperatures, or frequent cycling are also warning signs. A prompt cooling repair can prevent the problem from getting worse.

Most repairs can be completed the same day once we diagnose the issue. Simple fixes like capacitors, contactors, or drain clearings are usually quick. A larger cooling system repair, like compressor or coil replacements, may take longer depending on parts availability.

If your unit is under 10–12 years old and the repair is minor, fixing it can give your system years of life back. Older systems that need frequent or costly work may be better candidates for an AC replacement. We’ll walk you through the pros and cons so you feel fully informed and confident in your decision.

Common causes include low refrigerant, dirty coils, blocked airflow, or a failing compressor. Sometimes it’s as simple as a clogged filter restricting circulation. Our air conditioning service can work to pinpoint the issue and restore your home’s cooling.

Yes, we repair all major brands commonly found in San Diego homes, including Bosch, Daikin, Carrier, Trane, Lennox, Rheem, Goodman, American Standard, Bryant, York, and more. Whether it’s a newer high-efficiency system or an older unit that’s been running for years, our technicians know what to look for.

Manufacturer warranties often cover parts if the system is still within its coverage period and properly maintained. Homeowners' insurance usually only applies if damage was caused by a covered event like a storm. We’ll help you review your warranty details and explain what applies before starting work.

The compressor is typically the most expensive component to replace. It’s the heart of the system, and when it fails, costs can add up quickly. In those cases, we’ll compare repair costs to replacement so you can decide what to do next.

Heating and Cooling Offers You Can't Miss

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

  • INSTALLATION

Up to $11,225 Off a New Heat Pump

Receive up to $8,000 in HEEHRA rebates, up to $625 in Comfortably California rebates, and up to $2,600 in Federal Tax Credits when you install a new heat pump system. Must be income-qualified to receive HEEHRA rebate. Valid on residential properties only. Valid on select systems. Rebates available until funds last. System must be installed by 2/28/26 to receive Federal Tax Credits. Restrictions apply. See dealer for details.

  • INSTALLATION

$8,000 HEEHRA Rebate

Get income-qualified and receive an $8,000 rebate on a new heat pump system. Can be combined with up to $625 Comfortably California rebate, $2,000 heat pump Federal Tax Credit and $600 electrical upgrade Federal Tax Credit. Rebate available until funds last. Restrictions apply. See dealer for details. Offer expires 2/28/26.

  • INSTALLATION

$625 Comfortably California Rebate

Valid on select systems. Valid on residential properties only. Can be combined with HEERHA rebates, $2,000 heat pump Federal Tax Credit and $600 electrical upgrade Federal Tax Credit. Rebate available until funds last. Restrictions apply. See dealer for details. Offer expires 2/28/26.

  • INSTALLATION

$2,600 Heat Pump Federal Tax Credit

Valid on select systems. Must be installing a heat pump system with electrical wiring or panel upgrade. Valid on a primary residential home only. Can be combined with HEEHRA rebates and up to $625 Comfortably California rebates. System must be installed by 2/28/26 to receive this tax credit. Restrictions apply. See dealer for details.

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.

Ariana Lujan profile picture
Ariana Lujan
17:43 20 Jan 26
Very helpful, quick and easy to schedule! We had an unexpected (but necessary) repair when doing maintenance and both the office and tech Carson were thorough and transparent in their support. Great service!
Graham Davis profile picture
Graham Davis
15:37 18 Jan 26
After dealing with several HVAC companies, Guthrie & Sons clearly stood out as the most ethical, honest, and reliable. From the very beginning, their approach felt transparent and genuinely focused on what was best for us—not on upselling or unnecessary replacements.

We worked with Vlad T., who had previously been out to our home and saved us tens of thousands of dollars by getting our existing AC unit up and running when other companies were pushing for a full replacement. That experience alone earned our trust.

Now that we’re finally ready to purchase new units, there was no question that Guthrie & Sons was the only company we would consider, and Vlad was the obvious choice. He was extremely professional, punctual, and exceptionally knowledgeable, taking the time to explain options clearly and thoroughly. His expertise and honesty made the entire process straightforward and stress-free.

If you’re looking for an HVAC company you can truly trust—one that values integrity, quality workmanship, and customer service—I cannot recommend Guthrie & Sons and Vlad T. highly enough. This is how service should be done.
Blas Falconer profile picture
Blas Falconer
19:35 17 Jan 26
The layout of my condo made installing splits challenging, and before I met with Guthrie and Sons, three companies either told me that it couldn't be done. Vlad studied my apartment until he found a way to install with minimal openings in the walls and without a second condenser. Mallory, who works in the office, always followed through and advised me when I ran into a hiccup and needed detailed plans for the city. My HOA appreciated Guthrie and Sons' thoroughness and was so impressed with the design, that another resident who had been wanting splits for years, decided to install splits at the same time. The team that came in was knowledgeable, professional, and hard working. They finished a day ahead of time. I'm thrilled with the way everything looks and works.
Rob profile picture
Rob
18:12 12 Jan 26
This is by far the best company for your HVAC needs. They are honest very caring. Good fair pricing and got the job done efficiently and on time. I also signed up for their bi-yearly service which they performed the winter one and went very well. Thanks
Tania Reyes profile picture
Tania Reyes
23:47 05 Dec 25
I’ve been using Guthrie & Sons for over 15 years. They installed my whole AC system and maintained it all those years and never had an issue. Well it was time for an upgrade and they’ve recently installed my second system. The team 15 years ago and the team this time around were both amazing, professional and clean. I can’t recommend them enough Matt, Ben, Christian and Bryan get 10 stars. They are a bit pricier but worth the investment when you have peace of mind and almost two decades of great service and no issues.
Trejos Marcela profile picture
Trejos Marcela
17:27 04 Dec 25
I had an excellent experience with Guthrie & Son AC & Heater Company. Their customer service was outstanding, and they took the time to answer all my questions thoroughly. Every technician who has worked on my AC/heater installation and now the ongoing service has been knowledgeable, respectful, and always on time. I highly recommend them to anyone in need of HVAC services!
I only wish the annual service was cheaper 🙂
Paula Remmel profile picture
Paula Remmel
06:34 02 Dec 25
I have a maintenance plan for my heat pump and air conditioner which Guthrie & Sons installed two years ago. I am very happy with my system as well as the maintenance plan. Wayne, one of their excellent technicians, just completed the Fall service and now the system is ready for winter use. He is knowledgeable and has been able to answer any questions I have about my system. In addition, the office at Guthrie & Sons is very responsive and follows through on any questions and concerns within 24 hours if not immediately. Great service from a great company.
Bill Cogan profile picture
Bill Cogan
22:04 24 Nov 25
Guthrie & Sons responded immediately to my online request, and was able to send someone out immediately. Zack, our technic-ian was very friendly, professional, knowledgeable and gladly answered all of our questions. He found the problem immediately, and left the work area clean and in good order. We would highly recommend Guthrie & Zack! They are real assets to our community.
Dani P profile picture
Dani P
03:27 16 Nov 25
I've been using Guthrie & Sons for over 10 years and two homes. I really like that they are a family-owned and an established business. Always professional, on time, and always quality work. I've used their services from simple routine maintenance to having a new AC installed.I've never had a bad or even mediocre experience; I'm just always overall pleased with their work.
David Downhour profile picture
David Downhour
02:47 10 Nov 25
We bought our HVAC system from Guthrie & Sons. They have been monitoring our system online and later noticed a heat sensor issue.

Zach M. came by and installed on new one. He was extremely professional and completed the installation promptly.

This was another great experience all around and I gladly recommend Guthrie and Son's for all your HVAC needs.
Rachel Phillips profile picture
Rachel 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 picture
Liz 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 picture
Neil 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 picture
Trae 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 picture
David 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 picture
Erin 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 picture
Tomankhamen
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 picture
Gabrielle 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 picture
robert 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 picture
K 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!

Schedule Your San Diego Air Conditioning Repair Today

Dealing with a broken air conditioning unit is frustrating enough, and 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 experience. 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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