HVAC Repair

HVAC Repair in San Diego County for Fast Fixes at Fair Prices

AC not cooling? Heater not heating? We’ll be right there! Whether the house is heating up when it shouldn’t—or staying cold when you need warmth—we know how frustrating that feels. At Guthrie & Sons, we’re local, licensed, and ready when and where you need an HVAC repair in the San Diego area.

Looking for a Local HVAC Repair Service? Guthrie & Sons Is In Your Neighborhood

Living in San Diego, we’re lucky most days—but when it gets hot, that AC feels wonderful. And when it cools off, you want your heater on. If your heating or cooling system has suddenly stopped working or is behaving out of the ordinary, call the HVAC repair experts at Guthrie & Sons Heating, Air & Solar.

Whether it’s your home, rental, or business, we can quickly send out a trained technician to take a look. We handle repairs for air conditioners, furnaces, heat pumps, and ductless mini-splits, and our pricing is always on par with the work performed. New to us or the neighborhood? We’re a local, family-owned company that’s been part of this community since 2005. We know the homes, we know the weather, and we know how to fix your HVAC system—fast. Call or schedule online today for your HVAC repair in San Diego, California.

Trust the HVAC Repair Team That’s Been Here for Decades

Trust the HVAC Repair Team That’s Been Here for Decades

We’re not some big chain just passing through town. Guthrie & Sons is a second-generation, family-run company that’s been working on HVAC systems in San Diego buildings since 2005. Our techs are NATE-certified, which means they’ve gone through the highest level of training and testing in the industry so you’re getting someone who really knows what they’re doing.

We have fully stocked trucks out every day across San Diego County and the nearby area—from Oceanside to Chula Vista, El Cajon to Carlsbad and Temecula—so when you call, we’re already close by and ready to get to work. We don’t drag it out or leave you with a half-done job—we work quickly, fix it fully, and make sure it’s done right the first time.

How Much Will My HVAC Repair Cost?

We get it—this is the first question you want answered. And while pricing can vary, we’ll always start by coming out, inspecting your system, and talking through what’s going on. Then we’ll give you clear options, get your go-ahead, and get the work done.

Here’s what to keep in mind about your HVAC repair costs:

  • Smaller HVAC repairs usually cost less and often involve things like a faulty thermostat, a clogged drain line, or a worn-out capacitor.
  • Bigger issues—like a failing blower motor, heat exchanger, or a refrigerant leak—can cost more, and in some cases, the price starts to approach what you’d spend on a new system.
  • The age and condition of your equipment also matter. Older systems tend to need more labor, and replacement parts can be harder (and more expensive) to find.

We’ll never push you to replace what can be repaired. For most issues, repair is the smarter, more affordable route—and we’ll always guide you toward the best solution for your system and budget.

Explore Our San Diego HVAC Repair Services

Explore Our San Diego HVAC Repair Services

In San Diego, homes vary a lot—some are brand new with smart thermostats and zoned systems, others still rely on older units that have seen better days. We work on them all. Big houses, small condos, rental units, multi-family setups—you name it, we’ve repaired it. If something’s not working right, we’ll figure it out and get it fixed.

Heating and Cooling Repair

Wondering if we can repair your heating and air conditioning unit? The answer is yes! Our San Diego HVAC repair company works on all major heating and cooling systems.

Wondering if we can repair your heating and air conditioning unit? The answer is yes! Our San Diego HVAC repair company works on all major heating and cooling systems.

If your AC isn’t cooling like it used to, feels weak at the vents, or runs constantly without results, you need an air conditioning repair. It could be low on refrigerant, the coil might be frozen, or a filter could be clogged with dust. We’ll check everything from airflow to electrical parts, clean it up, and get your system cooling again.

Mini-splits are great—until a unit stops responding, starts leaking, or throws a blinking error code. Most of the time, it’s a blocked drain, a faulty sensor, or a control board issue. These things happen with regular wear and tear. During your mini-split repair, we’ll troubleshoot the system, clear out any clogs, reset what needs resetting, and swap out parts if needed.

A heat pump relies on the reversing valve to switch between modes and refrigerant to keep everything moving. But if the refrigerant is low, the valve sticks, or the coil ices up, your system might blow the wrong temperature or stop altogether. When you call us for a heat pump repair, we’ll test the system, find what’s throwing it off, and make the necessary repairs.

If your furnace isn’t turning on, keeps shutting off, or sounds like something’s shaking inside, it’s time for a furnace repair. Often it’s a worn ignitor, a dirty flame sensor, or a blower motor starting to fail. We’ll do a full checkup to figure out what’s causing the trouble and take care of it so your heating system runs smoothly once again.

Indoor air quality products are one of the best upgrades you can make for your home. Because of our dry climate and long cooling seasons, you made a smart decision by installing one. But like anything connected to your HVAC system, these units can break down, too. When they do, we’re here to repair them, along with the thermostats that help control your whole system.

When your air purifier isn’t cleaning the air like it used to, the filter may be clogged or the unit could have a failing fan or UV light. We handle all types of air purifier repairs, from basic maintenance to part replacement.

If your whole-home dehumidifier isn’t draining, keeps shutting off, or feels like it’s doing nothing at all, a quick dehumidifier repair is in order. We often see blocked drain lines, faulty float switches, or sensors that need recalibrating.

Sometimes the issue isn’t with your HVAC unit—it’s the thermostat sending the wrong signals. Faulty sensors or wiring can stop the system from turning on or reaching the right temperature. We’ll take care of the thermostat repair so your heating and cooling systems respond correctly.

Do I Need an HVAC Repair or HVAC Replacement?

In most cases, if your system is under 10 years old and the issue is isolated or minor, an HVAC repair makes sense. But if your system is 12–15 years old or more, has a history of repeated breakdowns, or the HVAC repair cost is getting close to half the price of a new unit, it may be time to consider an HVAC replacement.

If that’s the case, we’ll walk you through the options. We offer financing, a free online quoting tool to help estimate costs, and we’ll even help you find manufacturer rebates, seasonal discounts, and any available tax incentives in the San Diego area. We don’t pressure you to replace what can be repaired—we just give you the honest facts.

Make Fewer Repair Calls With More Regular Maintenance

Make Fewer Repair Calls With More Regular Maintenance

It may not always seem like it, but we ask a lot from our HVAC systems. We run the AC all day when it’s hot, the heat on cold mornings, and air purifiers during wildfire season—all sometimes in the same week. Our air also has dust, salt, and moisture in it, and that stuff gets into your system. Coils get dirty. Filters clog. Parts overheat. When you skip maintenance, those things pile up and turn into expensive HVAC repairs.

No matter what kind of system you have, annual HVAC maintenance makes a big difference. At Guthrie & Sons, we offer seasonal tune-ups for everything—ACs, heat pumps, furnaces, and mini-splits. Want to make it even more worth your time and money? Our USA Membership Plan gives you priority service, repair discounts, reduced service fees, and extended warranty options. We have plans to fit your needs and your system. Talk to your technician or give us a call to find out more.

Frequently Asked Questions

Yes, all of our HVAC repairs are backed by a workmanship warranty. We’ll go over the details with you before any work begins. We stand behind everything we do.

First, check your thermostat settings and circuit breaker—sometimes it’s a quick fix. If that doesn’t work, give us a call and we’ll send someone out. We’ll find the issue and walk you through your options.

We don’t recommend it. HVAC systems involve high-voltage electricity, gas, and refrigerant—none of which are safe to troubleshoot without training. Give us a call and let a licensed technician take care of it.

Most repairs can be diagnosed and fixed in one visit. It depends on the problem and whether parts are needed. Either way, we work quickly and keep you informed every step of the way.

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.

  • WATER HEATER

$2,600 Federal Tax Credit on Heat Pump Water Heater

Valid on a qualifying heat pump water heater installation with electrical panel upgrade. Up to $2,000 (30% of cost) in Federal Tax Credits for a heat pump water heater and up to $600 (30% of cost) for an electrical panel upgrade. Can be combined with state rebates only. Restrictions apply. See dealer for details.

  • INSTALLATION

Up to $11,750 Off a New System*

Qualify for HEEHRA and you can get up to $8,000 in HEEHRA rebates, up to $1,150 in manufacturer rebates and up to $2,600 in Federal Tax Credits for a total of up to $11,750 off a new installation. Valid on residential properties only. Cannot combine with any other offers. Must mention promo at time of estimate appointment. Restrictions apply. See dealer for details. Offer valid until funds last.

  • 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 6/30/25.

  • INSTALLATION

0% APR for 25 Months

Get 0% APR financing for 25 months on a new heating or air conditioning installation. 0% interest with 25 equal monthly payments. Financing subject to credit approval. 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 6/30/25.

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.

Nick Schoch
17:58 27 May 25
Jonathan recently inspected the HVAC systems at both my front and guest houses, and I couldn’t be more impressed with his service. He was thorough in his assessment, clearly identifying areas of concern and explaining the recommended repairs in a way that was easy to understand. What stood out most was his honesty and patience—he took the time to answer all my questions without rushing, and I genuinely felt he had my best interest in mind. If you're looking for someone who is knowledgeable, professional, and respectful of your time and property, I highly recommend asking for Jonathan.
Neil Domingo
17:24 15 May 25
If you’re dealing with an AC issue, Mario is definitely one of the best! He quickly diagnosed the problem, worked efficiently, and provided a thorough solution. His expertise and professionalism were clear throughout the entire process. Highly recommend Mario for anyone looking to resolve their AC issues with a reliable and skilled technician.
Phil Lane
17:18 10 May 25
Guthrie and Sons has provided great service. There are many HVAC companies in San Diego to choose from. They provided a very reasonable estimate for replacing our two AC systems. Once we said yes installation happened within days. It was a quality install. They answer the phone quickly when I've had questions. Happy to refer them to others.
Dianne Haase
20:57 02 May 25
Great customer service, technicians always on time and friendly. I’ve had my new hybrid heat pump for a few years and Guthrie & Sons are very proactive making sure everything is running smoothly. Very happy in my decision to use them!
Andrea Kossoudji
01:11 30 Apr 25
Great service!! Jonathan was patient, kind, knowledgeable and extremely professional! I love Guthrie & Sons’ reminder system, notification of the technician enroute, the easy invoice system and immediate emailing of the findings, including detailed photographs of the work completed!! Highly recommend!
james beedon
20:47 23 Apr 25
Last summer my air conditioner couldn't cool the house in the hottest period of summer. The HVAC team I was working with came in and said the coils were leaking, the unit was 20 years old. I requested quotes from 5 different companies, and the variation of prices was huge. I went with Guthrie and Sons for these reasons:
1. Local Company
2. Family Owned
3. Great presentation, no pressure
4. Good products
5. Competitive pricing
Just installed yesterday, so jury is still out on the system, but installation was thorough and great communication so far!
Darius Degher
21:45 22 Apr 25
Carson and Michael were brilliant. The heat pump installation went smoothly, and they are really pleasant and trustworthy fellows. The day after it was installed, I had a plumber at my house. He looked at their work and was impressed. He said it was much cleaner than the way HVAC people usually do it.
Lito Ricasata
19:03 08 Apr 25
First time prospective client of Guthrie and Sons. Very responsive staff in providing updates on my calls. Mario F. came over to check out my existing cooling and heating system and is very thorough and professional in providing necessary information related to repair/upgrades. Pending his quote, my experience with Guthrie and Sons is top notch and most highly recommended.

Updated review: Kareen, Daniel and Michael worked on the AC replacement, relocation of furnace to the attic and replacement of ductwork. Very professional and knowledgeable team in my opinion. Completed the work in a timely and very satisfactory manner.
Michael Myers
00:19 25 Mar 25
My experience with Guthrie & Sons has been excellent, and I am pleased to write a very favorable review about it. They replaced three air conditioners and three propane furnaces with new equipment that utilizes heat pump technology. I had met with other companies and I was close to coming to a conclusion, when a friend recommended Guthrie & Sons. He told me that they are hyper focused on customer service from beginning to end.

Their customer service started with the on line completion of a basic information form. Shortly after submitting that form, I heard from Zach who scheduled an appointment at my home.

I had already met with three other HVAC contractors, and for that reason, I had some basic information about the systems available and how heat pumps work and whether propane furnaces should also be installed. I signed a contract on a Friday. By Wednesday of the next week they had completed the installation. Wow.

The installation of one of the furnaces in the attic caused minor damage to the drywall. THEY BROUGHT IT TO MY ATTENTION and told me a drywall contractor would be in touch regarding its repair. Two days later it was repaired.

Since installation, the equipment (heat pumps from Bosch) has been working great and I am optimistic about the future. Meanwhile, their pricing, warranty and terms are far superior to their competitors.

Since this is an unusually long review and so favorable, let me add this: This is my honest, uncompensated opinion. I have no relationship with anyone at Guthrie & Sons other than the contract we executed.
Tom H
15:21 20 Mar 25
We recently had Guthrie and Sons install a Mini-Split system in our home. The entire process was handled professionally with no issues occurring at any time. The estimator (Vlad) went through options with us but let us evaluate the best solution for us with zero pressure. The installation team (Matthew and Aaron) showed up on time, reviewed the scope of the job, made sure they understood what we wanted, and then proceeded to complete the installation exactly as discussed. They asked for my input as needed so there were no surprises when the job was completed.
They respected my property and made sure everything was left at least as clean was when they arrived. The job was completed on time and as promised and they reviewed the details of the system and its use clearly. I would definitely have Guthrie and Sons do other electrical/HVAC work should the need arise.
Mike Macias
19:43 19 Mar 25
I have been in the construction industry in San Diego for over 50 years. I owned my own contracting company for over 40 years. I have seen all levels of customer service in my years. The level of customer service from Guthrie and Son’s is among the best I’ve ever seen and received. Every time I hear anyone asking for a referral for HVAC work I immediately give them your number. When I recommend a company I in essence am putting my name and reputation on the line. I refer them with 100% confidence in the service they will receive. Thank you very much for your legendary service.
Scott Sypkens
23:32 11 Mar 25
We first hired Guthrie and Sons to replace a furnace after comparing proposals from several heating and air companies. They’ve since been back for annual check ups, and today Kareen came to diagnose and resolve an issue with our mini-splits. My experience each time, including today, is that they hire friendly, knowledgeable people who do good work. They’ve never tried to upsell or do anything unnecessary, which is the way it should be. I’d recommend them to anyone who asks.
Marilyn Rivas
20:07 09 Mar 25
They always come out quickly. They are so polite and careful.
Steven Wheeler
19:28 07 Mar 25
Good technician did everything right yet our heater still not working
Jonathan gave us the likeliest problems so we’ll have to get it fixed
Dmitriy
04:01 07 Mar 25
My AC was not working for seven months. Three other companies tried to fix it with no success. Don’t make the same mistake I did—go straight to Guthrie & Sons! They are absolutely worth every penny.
Cecilia Benevich
22:17 05 Mar 25
Rick
21:38 05 Mar 25
Experienced technician gave me the particulars of a replacement HVAC system
Daylan Dauchot
21:28 05 Mar 25
Courteous, in-time, helpful, honest. Would recommend.
Xinxin Wang
22:05 04 Mar 25
Tom Barden
18:26 04 Mar 25

Schedule Your HVAC Repair in San Diego, CA With Guthrie & Sons

If you haven’t worked with Guthrie & Sons Heating, Air & Solar before and you’re searching for “HVAC repair near me”, you’re probably facing a long list of options. Take the time to do your research because your heating and cooling system is too important to leave in unqualified hands. One bad repair can lead to more damage and bigger bills. Our technicians are highly trained, have real in-the-field experience, and show up ready to work. They’ll treat your home and your time with respect. Call today or fill out our online form to schedule an appointment for HVAC repair in San Diego, CA, and the surrounding cities.

8248 Ronson Road
San Diego, CA 92111
(619) 269-3013

Now proudly serving Temecula and Murrieta!

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8248 Ronson Road
San Diego, CA 92111

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