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 $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.

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 7/31/2026.

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 7/31/2026.

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 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.

Keith Mar

3 weeks ago

I was told by a couple other companies that I needed to replace my system. Vlad came out and made sure that my old system actually needed to be replaced and found it could be fixed for a fraction of the price. I appreciate the honesty and would definitely recommend. Edit the technician came out and made the repairs. He did a good job of explaining the situation and giving a couple options.

Jim Hainline

1 month 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

1 month 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

4 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

4 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

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

5 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

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

6 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

6 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

6 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

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

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

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

7 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

8 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

8 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

8 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

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

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.

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