HVAC Replacement

HVAC Replacement in San Diego County for a Reliable System That Costs Less to Run

Looking to replace your HVAC system? All you want is something reliable, properly installed, and fairly priced. That shouldn’t be complicated. And with Guthrie & Sons, it isn’t. We’ve been doing HVAC replacement in San Diego for decades, and we’ll help you find a system that’s ideal for your home and budget.

Get a New HVAC System Installed at a Great Price With Guthrie & Sons

If your HVAC system just died—or it’s barely hanging on—you’re probably stressed, sweating, and getting mixed messages from every company you call. One tells you to fix it. Another pushes you to replace everything with the latest top-dollar setup. And you're left wondering who’s being straight with you.

At Guthrie & Sons, we understand the frustration—and we’re here to make it easier. We’re a second-generation, family-owned HVAC company with deep roots in San Diego. Our technicians are licensed, insured, and NATE-certified, which means they’re some of the most qualified in the industry. We don’t overcomplicate things or push what you don’t need. If you’re ready for an HVAC replacement in San Diego, California, give us a call or request a quote online and we’ll guide you through the entire process.

Explore HVAC Replacement Pricing With Our Free Online Quoting Tool

We install HVAC systems in just about every type of property—single-family homes, condos, apartments, ADUs, townhomes, and commercial spaces. If you’re trying to figure out your HVAC replacement cost, but not quite ready to meet yet, it’s not a problem. That’s why we built our free online quoting tool! Just answer a few quick questions and get a ballpark estimate back from our team.

Later on, we’ll follow up with a free in-home estimate to confirm the details. Or if you’d rather skip the form and meet face to face, we’ll schedule a visit—no pressure, no big sales pitch. We go all over San Diego County and the nearby areas, including Oceanside, Chula Vista, Escondido, El Cajon, Carlsbad, La Mesa, Poway, Temecula, Murrieta, and more.

Need Help Paying for Your HVAC Replacement? We’ve Got Options

Replacing your HVAC system isn’t cheap. These days, nothing is. Most people aren’t ready to cover the whole cost upfront, and that’s okay. At Guthrie & Sons, we offer financing options to make it easier to move forward without putting off an upgrade that could affect your home’s health and safety.

Not sure what it costs or what you qualify for? Give us a call. We also run seasonal discounts, and we’ll help you look for rebates and tax credits that can bring the price down. Our goal is to help you stay comfortable and make the numbers work.

San Diego HVAC Replacement Services That Meet Your Home’s Needs

In San Diego, people heat and cool their homes and businesses in all kinds of ways. Sometimes it was the system that fit the building best; other times it was just whatever was standard when the place was built. But if you’re replacing your HVAC system, now’s your chance to rethink it. You’re not stuck with what’s there—you can upgrade to something better or even switch types entirely. There are newer, more efficient options out there that can give you more control, better comfort, and lower energy use. Rest assured, we’ll walk you through all your options.

Central air is great for homes with ductwork and offers full-home cooling that’s simple to use. It’s a good choice for families, larger homes, and properties that need even temperature throughout. If your current AC unit is over 10–15 years old, breaks down often, or struggles to keep up on hot days, it’s time to look at a replacement. We’ll remove the old system, check your ductwork, and install a properly sized unit that cools evenly and runs efficiently without making your energy bills jump.

Heat pumps are a great fit for San Diego’s mild climate because they handle both heating and cooling in one system. If your unit is constantly running, stuck in the wrong mode, or has major issues like a bad compressor or reversing valve, a heat pump replacement will serve you well. We’ll evaluate your current setup, recommend a model that fits your space, and replace it with a modern, energy-efficient system that runs all year without relying on gas.

Mini-splits are a popular option for homes without ductwork, ADUs, converted garages, and rooms that just don’t stay comfortable. They’re also great for zoning—cooling or heating only the rooms you use. If yours is leaking, noisy, or not keeping up, it might be time for a mini-split replacement. We’ll remove the old unit, install new wall or ceiling-mounted heads, and make sure each zone runs quietly and independently with strong performance and control.

If your home uses a gas or electric furnace and it’s older, noisy, or not heating like it used to, a furnace replacement can make a big difference. Furnaces typically last around 15–20 years, but after that, they start costing more in repairs and energy. We’ll inspect your current system, recommend a safe and properly sized replacement, and install it with clean ductwork and up-to-code ventilation. You’ll get better heat, better safety, and a lot more peace of mind.

Want Your New HVAC System to Last Longer? Schedule Maintenance With Us

The truth is, a lot of HVAC systems get replaced earlier than they should, usually because regular maintenance was skipped. Missed tune-ups, ignored warning signs, or overdue repairs all add up. If that was the case, let’s not let that happen again. We recommend yearly HVAC maintenance for your AC, furnace, heat pump, and mini-split to keep everything running smoothly and catch issues early before they get really expensive. Well-maintained systems can last 30–50% longer and run noticeably better day to day.

We get that this is one more thing to track—and that’s exactly why we built our USA Membership Plan. It includes scheduled service reminders, priority scheduling, discounts on service calls and repairs, and even upgraded warranty support. You save time, save money, and avoid surprise breakdowns. That’s a win all around. Talk to us about signing up!

Frequently Asked Questions

If your system’s still fairly new and the repair is small, we’ll usually recommend fixing it. But if it’s over 12 years old, breaking down often, or the cost to fix it keeps adding up, an HVAC replacement may be the smarter long-term move. We’ll always talk you through both options.

Most HVAC replacements take one full day. If it’s a bigger system or there’s extra ductwork involved, it might take a little longer. We’ll give you a clear timeline upfront so you know what to expect.

We do a full load calculation based on your home’s layout, insulation, and square footage. A lot of systems are oversized or undersized, which causes all kinds of problems. Getting the size right means better comfort, lower bills, and fewer breakdowns.

It depends on your home, budget, and energy goals. Most people in San Diego go with something in the 14–18 SEER range. We’ll walk you through the options and help you pick a system that balances performance and cost.

If both systems are older or use shared components, replacing them together can save money and make sure everything runs more efficiently. We’ll take a look at what you’ve got and give you honest advice.

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.

Request a Free Quote for Your HVAC Replacement in San Diego, CA

Most people only replace their HVAC system once or twice in their lifetime, so it’s normal to have questions. At Guthrie & Sons Heating, Air & Solar, we have answers—and we won’t push you into the biggest, flashiest system on the market. We’ll listen, get to know your home, and recommend what actually makes sense for your space. As a local company, we understand San Diego homes, buildings, and the weather we build for. We also know that your time is valuable, so we try to schedule HVAC replacements as soon as the next time. Call now or fill out the online form to request a quote for your HVAC replacement in San Diego, CA.

8248 Ronson Road
San Diego, CA 92111

(619) 269-3013

HVAC Replacement