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.

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

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