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 $1,500 Off a New System

Receive up to $750 in manufacturer rebates and up to $750 discount from Guthrie. Valid on select systems. Must mention promotion at time of estimate appointment. Not valid on prior sales. Cannot be combined with any other offers. Restrictions apply. See dealer for details. Offer expires 7/31/2026.

  • 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 7/31/2026.

  • REPAIR

Free Diagnostic w/ a Repair

Your diagnostic service call fee will be waived if you proceed with a repair.

Cannot combine with other offers. Restrictions apply. See dealer for details. Offer expires 7/31/2026.

  • WATER HEATER

Free Estimate on a New Heat Pump Water Heater Installation

Valid for an estimate for a new hybrid heat pump water heater installation or replacement.

Restrictions apply. See dealer for details. Offer expires 7/31/2026.

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.

Jim Hainline profile picture
Jim Hainline
3 weeks ago
We had Rob from Guthrie & Sons come out to repair one of our A/C units. Rob was very friendly and professional. Rob resolved the problem quickly.
As far as price goes, I paid a higher flat fee 12 years ago from one of the larger local companies. I'm very impressed with pricing and quality of work.

I highly recommend Guthrie & Sons and Rob.
Amy Graeber profile picture
Amy Graeber
3 weeks ago
Great experience! The company confirmed my appointment and let me know who my technician was via text. They also updated me when he was on his way. The technician was friendly and knowledgeable. I’d recommend Guthrie & Sons to friends and family.
Bobby Orozco profile picture
Bobby Orozco
3 months ago
Great experience working with Guthrie & Sons from start to finish. Vlad was awesome. He was incredibly knowledgeable and explained everything in detail. Stark contrast from other companies we received bids for.

Christian and his crew did a great job on the install everything was smooth from start to finish.

I would definitely recommend this company here in Murrieta.
Sharon Troeger profile picture
Sharon Troeger
3 months ago
Guthrie & Sons has always been super professional and knowledgeable about our system. They did the install a few years ago and have continued to maintain it for us. This year we noticed that our system wasn't performing as well, so when Wayne came out, he noticed a likely leak and was back 2 days later to find and fix it. He was quick, professional, and just extremely nice! 100% recommend.
Jeff Haight profile picture
Jeff Haight
4 months ago
Called one of the "big guys" in town and the estimate to do what needed to be done to diagnose my problem was nearly 1/2 the cost of the system when I purchased it and had it installed 5.5 years ago, I found Guthrie & Sons and they came out the same day and did the same work for 1/4 the price I was quoted for the same exact work! Daniel was friendly, honest and quickly got my system working as expected. I even purchased the service plan so I don't have future problems. I highly recommend these guys, they were awesome, don't get ripped off call Guthrie & Sons!!!
Rocky profile picture
Rocky
4 months ago
I highly recommend Guthrie & Sons; from setting the appointment to the actual service!! Daniel was prompt, able to take care of our issue at a very reasonable price. I will be using them for all our needs in the future!!!! Thanks Daniel and Mackenzie.....you were great!!
Troy Nabatilan profile picture
Troy Nabatilan
5 months ago
Matt and Bryan are truly the A-Team! Their teamwork was outstanding and the workmanship was meticulous. The air handler was carefully installed, wiring neatly secured, plenum perfectly fitted, and the condenser precisely positioned and leveled for proper clearance and vibration control. The line set was pressure-tested and vacuumed as well. They also left the work area clean and neat.

Please congratulate them for a job well done!
Johnathan Yang profile picture
Johnathan Yang
5 months ago
Guthrie and Sons was very professional and communicative. Matthew and Bryan did incredible work, and followed up with a lot of testing to make sure my new unit was functioning well. They went above and beyond to ensure that things were done correctly. I could tell their standards were extremely high, and I felt relieved seeing how much care they took in their installation. I’m very pleased with the result!
Sunyim Kim profile picture
Sunyim Kim
5 months ago
I called to estimate to install central air conditioner on our second floor condo. Manager came the next day very punctual and knowledgeable about the process. He listened carefully our concerns and let us to make a decision. We truly appreciate his professionalism. Thank you for your service and I would recommend anyone who needs heating and air conditioning services in San Diego.
saul profile picture
saul
5 months ago
Guithre and Sons distinguish themselves not only through their high level of professionalism but also by their unwavering commitment to the quality and durability of every product they sell and the meticulous craftsmanship involved in each project. The company operates with a strong dedication to integrity and respect, fostering long-term relationships with clients and suppliers alike. They prioritize transparency and ethical standards in all business dealings, ensuring customer satisfaction and trust at every interaction. Their customer service team is exceptionally responsive and knowledgeable, consistently exceeding expectations to resolve issues swiftly and effectively.
Ariana Lujan profile picture
Ariana Lujan
6 months ago
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
6 months ago
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
6 months ago
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
6 months ago
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
7 months ago
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
7 months ago
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
7 months ago
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
8 months ago
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
8 months ago
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
8 months ago
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.

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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