Serra Mesa, San Diego Air Conditioning Repair

Air Conditioning Repair in Serra Mesa to Get Your AC Back Today

When your air conditioner quits, it’s frustrating and stressful. You’re left wondering what went wrong, how serious it is, and how much it’s going to cost. At Guthrie & Sons, we take all of that worry off your shoulders by giving you clear answers and upfront pricing right from the start. We’ll figure out the problem, walk you through your options, and get your air conditioner running again. Call us today or book your air conditioning repair in Serra Mesa, San Diego online.

Schedule a Same-Day Air Conditioner Repair With Guthrie & Sons

Is your air conditioner suddenly blowing warm or making strange noises? Does it keep turning off…or is it not even turning on at all?

At Guthrie & Sons Heating, Air & Solar, we provide air conditioning repair services for these issues and more. Our second-generation, family-run company has been in San Diego, California, since 2005, and we know first-hand how intense the summer heat and the Santa Ana winds can be. But no matter what’s happening outside, you deserve to have your home or business stay at a cool and comfortable temperature inside. If you’re having AC issues, we’re ready with 24/7 live answering and expert NATE-certified technicians. Contact Guthrie & Sons to schedule your air conditioning repair in Serra Mesa, San Diego, CA.

Expert AC Repairs From a Local, Family-Owned Heating and AC Company in Serra Mesa

Expert AC Repairs From a Local, Family-Owned Heating and AC Company in Serra Mesa

As a longtime local company, chances are you’ve seen our vans around the San Diego area. Guthrie & Sons Heating, Air & Solar proudly serves all of San Diego County and works in single-family homes, condos, townhomes, and small businesses throughout the community.

If you’ve been searching for an air conditioning service near me, we’re right in the neighborhood, helping customers near the Serra Mesa Recreation Center, along Ruffin Canyon, or in neighborhoods like Lincoln, Cabrillo Village, Cabrillo Heights, Mission Village, and Birdland. When you need clear answers and dependable service, trust the experienced technicians at Guthrie & Sons for your Serra Mesa, San Diego air conditioning repair. Emergency service is available!

How Much Do Air Conditioner Repairs Cost?

How Much Do Air Conditioner Repairs Cost?

We know the first thing on your mind is the price. While we can’t give you an exact number until we take a look at your system, we’ll get you that information as soon as we’ve done an inspection. Here’s what we can tell you right now:

  • Some repairs cost more than others. Smaller fixes like clogged drain lines, dirty filters, or failed capacitors are on the lower end. Larger repairs, like compressors or control boards, are at the top of the scale.
  • You’ll always get a clear, upfront quote. Once we’ve diagnosed the problem, we’ll explain what’s needed and the exact cost. Once you give the go-ahead, we’ll start right away.
  • We come prepared so you’re not waiting on us. Most of the time, we can make the repair right then and there. If a special part does need to be ordered, we’ll tell you exactly what to expect and keep things moving quickly.


Our pricing is fair, our work is done by licensed and trained technicians, and we show up when we say we will. Friendly, reliable, and thorough—you really can’t ask for much else! Schedule your Serra Mesa air conditioner repair today.

Fast AC Repair Services That Fully Solve the Problem

Fast AC Repair Services That Fully Solve the Problem

Your air conditioner doesn’t have to completely quit for it to need service. If it’s cycling on and off too often, blowing warm air, or making new noises, running it anyway can cause more damage. If something doesn’t seem right, it usually isn’t. Guthrie & Sons can track it down and fix it. Here are some of our most common air conditioner repair services in Serra Mesa so you can know what comes next.

If your air conditioner won’t turn on, start with the basics—thermostat settings and breakers. If those check out, the issue is often a failed capacitor, bad contactor, or damaged electrical connections in the outdoor unit causing electrical problems. Our air conditioning technicians test incoming voltage, inspect control boards, and verify safety switches before replacing the faulty part. Once repaired, we test the full startup cycle to ensure everything runs safely.

When the AC runs but the house won’t stay cool, it usually comes down to low refrigerant, a dirty evaporator coil, or restricted airflow. A refrigerant leak reduces cooling capacity and can eventually damage the compressor. We check system pressure, inspect coils, and measure temperature drop across the system to confirm what’s wrong. Then we fix the leak or airflow issue to restore your home comfort.

If your system keeps shutting off before reaching the set temperature, that’s called short cycling. It can happen from overheating in direct sunlight, a clogged condenser coil, or an oversized system that cools too quickly. Our air conditioner contractors test temperature sensors and inspect outdoor components to see why it’s shutting down early. Correcting it protects the compressor from unnecessary wear.

Banging usually means a loose or failing internal part. A damaged blower wheel, loose fan blade, or failing motor bearing can cause vibration and noise. We open the cabinet, inspect moving components, and check for corrosion or mounting issues. Tightening or replacing worn parts early prevents more complex internal damage.

If you notice water around the indoor unit, the condensate drain line may be clogged or the drain pan damaged. Excess moisture buildup can also come from a frozen evaporator coil that later thaws. We clear the drain line, test the float switch, and check for blockages to prevent overflow. Fixing drainage issues quickly helps avoid drywall and flooring damage as well as mold growth.

If airflow feels weak, the blower motor may be struggling or the evaporator coil could be coated in dust. A dirty filter or collapsed duct section can also restrict circulation. We measure airflow output, inspect duct connections, and test motor amperage to confirm performance.

Air Conditioning Services for Every Repair and Upgrade

At Guthrie & Sons, our Serra Mesa AC services cover residential air conditioning repair and:

  • Air Conditioning Maintenance
  • Air Conditioning Replacement
  • Air Conditioning Installation


We work on all makes and models, including central air conditioners and heat pumps. If a repair isn’t the right move—whether due to system age or a major component failure—we’ll explain why and walk you through how quickly we can complete your AC replacement.

If your system is 12+ years old and breaking down more often, a new air conditioning system can run more efficiently and give you fewer headaches. You can check out our pricing information and use our free online quoting tool to see what your project might look like. We also offer financing options with approved credit. From heating and cooling to indoor air quality and solar, Guthrie & Sons can get it done!

Keep Repairs Rare and Summers Comfortable With Our Maintenance Plan

Keep Repairs Rare and Summers Comfortable With Our Maintenance Plan

A lot of the AC repairs we see in Serra Mesa trace back to poor maintenance that could have been avoided. When filters clog, coils get coated in dust, or refrigerant levels drop, the system can’t move heat the way it should. That extra strain adds up and forces parts to wear out faster.

Scheduling regular maintenance gives us the chance to clean components, check refrigerant levels, tighten electrical connections, and test performance before small issues grow. Keeping everything tuned up helps your equipment stay dependable and helps you spend less on your energy bills and extra repairs. If you don’t want to keep track of service dates, our USA Membership Plan keeps your system on schedule automatically so nothing gets overlooked.

What You Get With the Guthrie & Sons USA Membership Plan

Want an air conditioner that’s more reliable, uses less energy, and lasts longer? Here’s what’s included:

  • Service reminders so you never miss a tune-up
  • Priority scheduling when you need us fast
  • 15% off any repairs
  • Reduced service call fees
  • Extended 5-year parts and labor warranty
  • Seasonal tune-ups for heating and cooling systems


You can sign up right through our office or ask your technician when they’re at your home. Many of our Serra Mesa customers have already signed up!

Frequently Asked Questions

The $5,000 rule is more of a guideline than a strict rule. You multiply the age of your system by the repair cost, and if the total is over $5,000, replacement is often the smarter financial move. It helps homeowners think long-term about efficiency and reliability instead of continuing to invest in equipment that may be nearing the end of its lifespan.

The most common AC repair usually involves a failed capacitor, clogged condensate drain line, dirty coils, or low refrigerant levels. These problems often develop from wear and tear or skipped maintenance. Addressing issues promptly prevents extra strain on major components and helps keep the system running efficiently.

The compressor is typically the most expensive part to replace. It’s responsible for circulating refrigerant and allowing the system to remove heat from your home. When a compressor fails, homeowners often compare the cost of repair against replacing the unit, especially if the system is older.

In most cases, homeowners' insurance does not cover standard mechanical breakdowns or poor maintenance. However, damage caused by a covered event—such as a lightning strike or storm-related power surge—may qualify. Routine service helps keep your home cool and reduces the risk of unexpected failures that insurance won’t cover.

Heating and Cooling Offers You Can't Miss

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

$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 3/31/26.

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 3/31/26.

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 3/31/26.

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 3/31/26.

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.

Rocky profile picture
Rocky
23:03 09 Mar 26
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
00:21 15 Feb 26
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
18:56 07 Feb 26
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
18:45 06 Feb 26
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
18:45 06 Feb 26
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
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.

Contact Us for Your Air Conditioning Repair in Serra Mesa, San Diego

Serra Mesa is right in the heart of San Diego, and it should feel good to come home here. If your AC isn’t keeping up or has completely called it quits, it’s a job for Guthrie & Sons Heating, Air & Solar. 

As your local AC repair company in Serra Mesa, we treat your home like it’s our own and your time like it matters because it absolutely does. We know an air conditioner problem isn’t something you want to deal with today, so we make scheduling simple and the repair process straightforward. Our team lives and works right here in San Diego, and we’re ready to help! From areas near Cabrillo Heights Park to Murray Ridge Park and Fletcher Elementary School, we’re here for you. Call or book your Serra Mesa air conditioning repair online today.