San Diego, CA Heating Repair
Schedule a Same-Day Heating Repair in San Diego
Living in Southern California, San Diegans are lucky to enjoy fantastic weather for most of the year. But when those chilly nights roll in and your heater stops working, it can get cold fast. That’s when you can count on Guthrie & Sons Heating, Cooling & Solar to bring the warmth back. Schedule a quick heating repair in San Diego, California, today!
No Heat? Cold Air? Get Expert Heating Repairs in San Diego, CA
When the sun sets and the temperature dips into the 40s, that coastal cold can still catch you off guard, no matter how long you’ve lived here. The days might still be mild, but when your heater stops working at night, it’s hard to get comfortable. At Guthrie & Sons Heating, Air & Solar, we know what that feels like because we live here, too. It’s not fun, and it isn’t something you should have to tough out.
A family-owned HVAC company in San Diego since 2005, Guthrie & Sons has helped thousands of homeowners and businesses get their heat back fast. From furnaces to heat pumps, we repair systems in single-family homes, apartments, condos, townhomes, ADUs, rentals, and commercial buildings across San Diego County. Don’t wait and risk losing more heat—or sleep. Schedule your San Diego heating repair with Guthrie & Sons today, and let’s warm things back up.
What Does a Heating Repair Cost?
Heating repair costs vary widely depending on what’s wrong and how much work it takes to fix it. At Guthrie & Sons, we keep our pricing fair and straightforward—you’ll always know what you’re paying for, and you’ll never get pushed into something you don’t need.
If we recommend a heating replacement, it’s because repairing your old system isn’t possible or wouldn’t be worth the cost in the long run. And if that’s the route we go, we’ve got you covered with financing options, special offers, and plenty of resources on rebates and tax incentives. You’ll get the dependable heater that you deserve, whether we repair or replace it.
When You Need a Heating Repair Near Me in San Diego, We’re Always Nearby
As a local San Diego heating company, Guthrie & Sons covers the entire county—from the coast to inland neighborhoods and everywhere in between. Whether you’re in La Jolla, Mira Mesa, Clairemont, Rancho Peñasquitos, North Park, or Mission Hills, you’re always within reach of our local technicians.
- Emergency heating repair service available throughout San Diego County
- Honest pricing with no upsells—ever
- 100% satisfaction guarantee on every job
- Experienced, professional technicians—many are NATE-certified
- Warranties on all workmanship and strong property protection guarantees
And if you’re farther south in San Ysidro or in another neighborhood, don’t worry—we’ll still get to you fast. Your San Diego, CA, heating repair is in the best hands!
Common Heating Problems and How We Fix Them
At Guthrie & Sons, our San Diego heating repair services cover all makes and models of furnaces and heat pumps, including popular names like Daikin, Trane, Carrier, and Lennox.
Homes in San Diego come in all shapes and ages—from 1940s Craftsman bungalows and postwar ranch homes to coastal condos, Spanish Revivals, and new ADUs. Our technicians are familiar with each type of property and understand the heating problems that you’re going through.
Here are some of the most common heating issues we see in San Diego homes and how we solve them:
Heater Not Turning On
When your heater won’t start, the issue could stem from a faulty thermostat, tripped circuit breaker, or safety switch lockout. Sometimes the system isn’t receiving power, or a control board has failed. We run a full diagnostic to confirm where the breakdown is happening, repair or replace the faulty part, and make sure your system safely powers back on.
Blowing Cold Air Instead of Warm
If your system is running but only blowing cool air, that usually means there’s a problem with ignition, airflow, or the heating elements. Low refrigerant or a malfunctioning sensor can also stop the unit from producing heat. Our technicians test the heating cycle, inspect components, and restore proper temperature output.
Heater Keeps Turning Off and On
Frequent cycling can indicate a dirty air filter, incorrect thermostat calibration, or internal safety sensor issues. This shortens system lifespan and wastes energy. We identify the root cause—whether electrical, mechanical, or airflow-related—and adjust or replace what’s needed to stabilize its performance.
Unusual Noises or Smells
Grinding, rattling, or banging sounds usually signal loose parts, worn bearings, or airflow obstructions. Ignoring noise can lead to serious mechanical failure. We inspect all moving components, tighten or replace worn parts, and make sure your system runs quietly and smoothly again.
Weak or Uneven Airflow
If one part of your home stays warm while another stays cold, airflow restrictions or duct issues may be to blame. Clogged filters, blower motor problems, or leaky ductwork can all reduce circulation. We test air pressure, clean and inspect ducts, and ensure balanced airflow throughout the space.
High Energy Bills Without Extra Usage
A noticeable rise in energy use without changing your thermostat settings means your system is running inefficiently. This could be caused by dirty components, restricted airflow, or electrical faults. We perform an efficiency check, clean internal parts, and repair damaged components to help your system run efficiently again.
At Guthrie & Sons, we’re your trusted San Diego HVAC contractor for any HVAC repair need, whether it’s for your heating or air conditioning system. You can call us for an air conditioning repair, too, or get a solar system set up to take advantage of all that sunshine.
Many Repairs Can Be Avoided With Our Heating Maintenance Services
Heating repairs are a normal part of owning a system—but frequent or costly repairs usually mean maintenance has been skipped. Over time, dust builds up, parts loosen, and electrical components wear down from sitting unused most of the year. Without upkeep, even a newer system can start struggling, leading to uneven heating, higher energy bills, and early breakdowns.
That’s why heaters need regular maintenance. Annual tune-ups catch small issues before they turn into expensive problems and keep your system running efficiently. Our heating maintenance services make it simple to stay on top of care for your furnace, heat pump, or mini split.
For an even easier option, join our USA Membership Plan. You’ll get automatic reminders, priority scheduling, and member-only perks like discounted repairs and lower service fees—all designed to save you time, stress, and money. Plus, regular maintenance keeps your HVAC warranty valid and helps your system last years longer. Replacing a heater early can cost thousands—a tune-up is just smart protection that pays off season after season. Talk to our team about signing up!
Frequently Asked Questions
Is It Cheaper to Repair or Replace a Heater?
In most cases, repairs are more affordable in the short term—especially if your system is under 10 years old and the issue is minor, like a faulty sensor or ignitor. However, when a heater is 12–15 years old, parts become harder to find and efficiency drops. If repair costs approach half the price of a new system, replacement often saves money long-term through lower energy bills and fewer breakdowns. At Guthrie & Sons, we’ll walk you through both options so you can choose what truly makes sense for your home.
What Is the Most Expensive Thing to Fix on a Heater?
The most expensive repairs usually involve major internal parts such as the heat exchanger, blower motor, or control board. A cracked heat exchanger, for example, can cause safety issues and often signals the end of a system’s life. These parts are labor-intensive to replace and can cost several hundred to over a thousand dollars, depending on the unit. Guthrie & Sons always provides upfront estimates and honest advice about whether repair or replacement is the better long-term investment.
How Long Does It Usually Take to Fix a Heater?
Most heating repairs take two to four hours to complete, depending on what needs to be done and whether parts are readily available. Simple repairs like thermostat recalibration or sensor replacement can be finished the same day, while more complex repairs involving motors or electrical components may take longer. Guthrie & Sons offers same-day San Diego heating repair whenever possible, so you’re not left in the cold for long.
Does Insurance Cover Heating Repair?
Homeowners insurance typically doesn’t cover repairs from wear and tear, age, or poor maintenance. However, if your heating system was damaged by a covered event—such as fire, lightning, flooding, or vandalism—your policy may help with repair or replacement costs. If you have a home warranty, some plans also include HVAC coverage. Guthrie & Sons can provide detailed documentation and diagnostic reports to support your claim if you’re eligible for reimbursement.
What Is the Average Lifespan of a Heater?
The average heating system lasts 12–20 years, depending on the brand, usage, and maintenance history. In coastal areas like San Diego, salt air and humidity can shorten lifespan slightly if systems aren’t serviced regularly. With annual maintenance, proper filter changes, and timely repairs, many systems reach or even exceed the 20-year mark. Guthrie & Sons offers maintenance plans designed to extend the life of your furnace or heat pump and keep it running efficiently year after year.
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.
- INSTALLATION
$625 Comfortably California Rebate
Valid on select systems. Valid on residential properties only. Can be combined with HEERHA rebates, $2,000 heat pump Federal Tax Credit and $600 electrical upgrade Federal Tax Credit. Rebate available until funds last. Restrictions apply. See dealer for details. Offer expires 3/31/26.
- 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 3/31/26.
- 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 3/31/26.
- 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 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.


Please congratulate them for a job well done!





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.




I only wish the annual service was cheaper 🙂




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.

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!


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.

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.

Book Your San Diego, CA Heating Repair With Guthrie & Sons
We love living in San Diego—especially during winter. From December Nights at Balboa Park to the San Diego Bay Parade of Lights and ice skating by the sea in Coronado, there’s nothing like this season here. But no matter what, you deserve to come home to warmth and comfort—and if you own or manage a business, your customers and staff do, too. Whether you're downtown, near the San Diego State University campus, or farther by Torrey Pines, count on Guthrie & Sons Heating, Air & Solar for fast heating repairs in San Diego, CA.
San Diego, CA 92111
