Clairemont, San Diego, Furnace Repair

Schedule a Same-Day Furnace Repair in Clairemont

A chilly night in Clairemont feels even colder when your furnace suddenly stops working or isn’t blowing warm enough air anymore. We know how uncomfortable things can get and offer quick furnace repairs in Clairemont, San Diego, California. Our technicians arrive fast, find the problem, and fix it. Call today to schedule your appointment. Same-day furnace repair is available in Clairemont!

We Can Repair Your Clairemont Furnace and Warm Things Back Up

We know you don’t want to deal with a furnace that’s broken down or one that’s barely keeping up. Once those cool Clairemont nights dip into the 50s, it doesn’t take long for things to get uncomfortable fast.

When you need a furnace repair in Clairemont, San Diego, contact Guthrie & Sons. We’re a local, family-owned company with licensed, NATE-certified technicians who know how to fix all types of heating systems, residential or commercial. Whether your furnace won’t turn on, makes strange noises, or just isn’t heating like it used to, we can help. Give us a call or send us a message, and we’ll be right with you.

Searching for a Furnace Repair Near Me? We’re a Top Furnace Repair Company in Clairemont

We’ve been working in Clairemont since 2005, helping homeowners stay warm through those cool coastal nights. Our technicians know the area’s mix of older ranch homes and newer remodels, and our trucks come fully stocked so we can handle most furnace repairs on the spot. We service and install all major furnace brands, including Daikin, Carrier, Trane, and more.

Whether you’re in North Clairemont, Clairemont Mesa East, or Bay Ho, our team is close by, ready to get to you fast and get your furnace running again.

Is It Worth Fixing Your Furnace—or Should You Replace It?

We get it, when your furnace stops working, your first thought is usually, “Great, now I’ll have to buy a new one.” But in many cases, that’s not how it plays out. A lot of heating problems can be fixed with furnace repairs that keep everything running smoothly for several more years. We’ll take a close look at everything before recommending anything so you can make an informed decision.

If your furnace is still under warranty (usually 5 to 10 years for parts), the repair might be fully or partially covered—saving you money right away.
In many cases, problems like a broken ignitor, worn sensor, or faulty motor can be fixed by replacing that one part instead of the whole system.
When repairs are done correctly, your furnace can keep running efficiently and safely for years to come.
Choosing to repair instead of replace helps you stretch the life of your current system and delay a big purchase until it’s truly needed.

If your furnace is older or the damage is extensive, we’ll go over your furnace replacement options clearly and honestly. With available rebates, financing, and special offers, upgrading can be easier and more affordable than you might think.

Leading Causes of Furnace Repairs in Clairemont

Furnaces in Clairemont deal with more than you might imagine: salt in the coastal air can corrode metal parts, dust from dry weather can clog filters, and sitting unused for months can cause parts to seize or fail when you finally turn the heat back on.

Sometimes, quick furnace troubleshooting like changing the filter, checking the thermostat batteries, or resetting a breaker is all it takes. But if your system still won’t heat or keeps shutting off, it’s time to call our Clairemont furnace repair service. Here are some of the most common furnace issues we see and what’s usually causing them.

The flame sensor ensures that your furnace ignites and burns fuel safely. Over time, this small metal rod can get coated with dust or carbon buildup, preventing it from detecting the flame. When that happens, the system shuts down the gas valve for safety, and your furnace turns off almost immediately after starting. Cleaning or replacing the flame sensor fixes the issue and restores consistent heat.

The ignitor is what lights the burners in a gas furnace. It wears out naturally over time from repeated heating and cooling, or it can crack if exposed to moisture or debris. When it fails, your furnace will click but never fully ignite, blowing only cold air. Replacing the ignitor is a quick, affordable fix that gets your system running again safely.

The blower motor is responsible for moving heated air through your ducts and into your home. When it starts to fail, you’ll notice weak airflow, hot and cold spots, or loud grinding or squealing noises. This can happen from dust buildup, worn bearings, or a bad capacitor. We’ll inspect, clean, and repair the motor—or replace it if needed—to restore strong, even heating throughout your home.

The limit switch acts as a safety device that shuts off the burners if the furnace overheats. When it’s dirty or faulty, it can trip too early and cause your furnace to shut off before the house is warm, or worse, fail to turn off at all. You may notice short cycling or inconsistent heating. Cleaning or replacing the switch prevents overheating and keeps your system running safely.

If your furnace turns on but the air never gets warm, the issue might be with dirty burners or a sticking gas valve. Buildup from dust or corrosion can block proper gas flow, leading to weak flames or failed ignition. We’ll clean the burners, test the gas pressure, and repair or replace the valve if necessary to restore safe, efficient operation.

When your furnace seems to run at the wrong times or never quite reaches the right temperature, the thermostat is often to blame. Wiring problems, dead batteries, or poor placement can cause inaccurate readings or short cycling. We test, recalibrate, or replace the thermostat to make sure your system operates smoothly and keeps temperatures consistent throughout your home.

The heat exchanger transfers heat from the furnace’s burners to the air circulating in your home. Over years of use, it can crack due to metal fatigue, rust, or overheating from restricted airflow. A cracked heat exchanger is a serious safety risk because it can leak carbon monoxide into your home. If we find one, we’ll shut the system down and go over safe replacement options with you immediately.

A Little Maintenance Goes a Long Way for Your Furnace—And Your Wallet

Most furnace problems don’t happen all at once—they build up slowly from dust, wear, and skipped tune-ups. Scheduling regular furnace maintenance with Guthrie & Sons keeps your system clean, efficient, and safe. During your service, we inspect every component, clean the burners and blower, test safety controls, and make sure everything is working the way it should.

Joining our USA Membership Plan makes it even easier. You’ll get priority scheduling, discounted repairs, and full tune-ups that help your furnace last longer and run better. It’s an easy, affordable way to protect your comfort and your budget all year long. Talk to our team today about Clairemont furnace maintenance and get signed up for worry-free HVAC maintenance for both your heating and air conditioning systems.

Frequently Asked Questions

One of the most common furnace problems we see is ignition or flame sensor failure. When these parts get dirty or wear out, your furnace may click but never ignite, leaving you with no heat. Dirty filters are another big one — they restrict airflow, overheat the system, and cause shutdowns. Luckily, both are quick, affordable fixes that our technicians can easily handle.

The priciest repair on a furnace is usually a cracked heat exchanger. This part separates combustion gases from the air circulating through your home, and when it fails, it’s a serious safety concern that often means replacing the unit. The blower motor and control board can also be costly, depending on the system type. We always assess whether a repair makes sense or if a replacement will save you more long term.

Most furnaces last between 15 and 20 years, depending on how well they’re maintained and how often they’re used. Here in San Diego, where heaters don’t run constantly, many systems make it to the higher end of that range. Regular maintenance—like annual tune-ups and filter changes—can significantly extend your furnace’s life and keep it running stronger for longer.

In most cases, homeowners insurance doesn’t cover furnace repairs caused by normal wear and tear or age. However, it may apply if the damage is from a covered event, like fire, storm damage, or a burst pipe. For breakdowns or part failures, a manufacturer’s warranty or home warranty plan is more likely to help with repair costs. We can help you determine what coverage applies to your situation.

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 12/31/25 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.

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.

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 12/31/25 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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

Get Your Clairemont Furnace Repair Taken Care of Today With Guthrie & Sons

Winter in Clairemont has its own kind of charm, so don’t let it be ruined by a broken-down furnace. If your heat’s out or your system just isn’t working like normal, contact Guthrie & Sons Heating, Air & Solar. We’ll handle your furnace repair quickly and get you back to your wintertime traditions like watching your favorite holiday movies, driving around Clairemont looking at the lights, and fun family activities at the recreation centers.

For a fast furnace repair in Clairemont, San Diego, CA, choose Guthrie & Sons to get it done.

8248 Ronson Road
San Diego, CA 92111

(619) 269-3013

Clairemont, San Diego, Furnace Repair

Schedule a Same-Day Furnace Repair in Clairemont

We Can Repair Your Clairemont Furnace and Warm Things Back Up

Searching for a Furnace Repair Near Me? We’re a Top Furnace Repair Company in Clairemont

Is It Worth Fixing Your Furnace—or Should You Replace It?

Leading Causes of Furnace Repairs in Clairemont

Flame Sensor Failure

Ignitor Burnout

Blower Motor Malfunction

Limit Switch Problems

Gas Valve or Burner Issues

Thermostat Malfunction

Cracked Heat Exchanger

A Little Maintenance Goes a Long Way for Your Furnace—And Your Wallet

Frequently Asked Questions

What is the most common problem of a furnace?

What is the most expensive repair on a furnace?

What is the average lifespan of a furnace?

Is furnace repair covered by homeowners insurance?