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

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?

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

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

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.

Heating and Cooling Offers You Can't Miss

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

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.

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.

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.

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.

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.