Air Conditioning Replacement

Air Conditioning Replacement in San Diego County for Better Performance and Fewer Repairs

When your AC keeps failing, it’s frustrating and expensive. An air conditioning replacement by Guthrie & Sons will make sure your home stays cool, your bills stay manageable, and your comfort isn’t a question mark anymore.

Need an Air Conditioning Replacement? We Make It Fast, Easy, and Affordable

If your AC is getting older, breaking down more often, or just can’t keep up anymore, it might be time to replace it. Most systems last around 10–15 years, and beyond that, AC repairs tend to get more frequent—and more expensive.

At Guthrie & Sons Heating, Air & Solar, we don’t just install equipment—we take care of people. Our team shows up on time, treats your home like it’s our own, and takes the time to do things the right way. We wear booties, lay down drop cloths, explain what we’re doing, and back our work with strong warranties. It’s not asking for much, but not everyone does it. We do because it’s what you deserve.

We handle air conditioning replacement in San Diego for homes, rentals, and local businesses. Our NATE-certified techs are some of the best in the business—and they’re here to make this a smooth, positive experience, not the hassle you might be dreading. Reach out today for a free quote to get started!

Is It Better to Repair an Old AC or Replace It?

If we had a nickel for every time someone asked us this, we’d be swimming in nickels. Seriously though, it’s a great question, and the answer really depends on what’s going on with your system. Here’s what we look at:

Is your AC unit over 10–15 years old?
Are repairs becoming a regular thing?
Are your energy bills going up for no good reason?
Is the temperature inconsistent from room to room?
Does it still use R-22 refrigerant?
Is the AC repair close to what a new system would cost?

At Guthrie & Sons, we’ll never push you into a new system if a repair makes more sense. If we can fix it and help you get more life out of it, we will. If an air conditioning replacement is the smarter move, we’ll walk you through your options—clearly, honestly, and without the pressure.

Free Online Air Conditioning Replacement Cost Calculator

Trying to get a rough idea of what a new air conditioner might cost? We’ve got you covered.
While we’re always happy to provide a free in-home estimate, we know it’s not always easy to find time. That’s why we offer an easy-to-use air conditioning replacement cost calculator—so you can start planning on your schedule. It’s a quick way to explore pricing and system options before you’re ready to meet with us or without having us come out to your home first.

We can also walk you through available tax credits and rebate opportunities to help you save.
Need financing? We offer flexible options to make your air conditioning replacement service more affordable upfront. Whether you’re just getting started or ready to move forward, we’re here to help in every way that we can.

Buying an AC? How to Choose the Right Air Conditioner for Your Home

When it’s time to replace your AC, you’re not stuck with what you had before. There’s no rule that says you have to stick with the same brand or system type. In fact, depending on your home and how you use it, a different setup might work better.

At Guthrie & Sons, we help you sort through the alphabet soup that is BTUs, SEER ratings, and more. Your air conditioning replacement is in great hands with our trusted team. We’ll explain what matters, what doesn’t, and how to make the best choice for your home—without the jargon overload.

Here’s what we’ll help you think through:

System Size

AC size isn’t about how big the unit looks—it’s about how much cooling power (measured in BTUs) your home actually needs. And believe it or not, your current system might be the wrong size. Too small, and it struggles to keep up. Too big, and it constantly turns on and off, wasting energy and wearing out parts faster. We’ll do the proper calculations to make sure your next system fits your home—and works like it should.

Energy Efficiency

SEER stands for Seasonal Energy Efficiency Ratio, and it’s basically your AC’s miles-per-gallon. If your current system is 10+ years old, it might be a SEER 10 or 12. Today’s systems start around SEER 14, and high-efficiency models can go up to 20+. The higher the SEER, the more you’ll save on your electric bill—especially in a San Diego summer. We’ll help you pick the right efficiency level without overspending on things you don’t need.

Helpful Features

Some new ACs come packed with features—Wi-Fi control, quiet modes, zoning, variable speed, and more. For some families, those upgrades make life easier and more comfortable, like controlling temps from your phone or sleeping through the night without a noisy fan. But not every home needs every feature. We’ll help you sort through what’s truly useful based on how you live, not what sounds good in a brochure.

System Type

If you already have ductwork and want to cool your whole house, central AC is probably the way to go. For garages, older homes, or add-ons where ducts don’t reach, ductless mini splits are a great option—super efficient and easy to install. More and more homeowners are also going with electric heat pumps. They look like an AC, but they do both heating and cooling, all without gas.

No matter what system you go with, we’ll make sure it’s the right fit for your home and how you live in it. Every install includes a 2-year labor warranty, with the option to extend it to 10 years. We also back our work with a lifetime workmanship guarantee and our Property Protection Guarantee, so you can feel good about every part of the air conditioning replacement process.

Protect Your New AC With Our Low-Price Maintenance Plan

Once you’ve purchased your new air conditioner, it just makes sense to protect it. Our USA Membership Plan makes regular maintenance easy, so your system runs better, longer. We’ll remind you when it’s time for service—no need to keep track or stress about it. Members get priority scheduling, discounted service calls, and lower repair costs. It also keeps your extended warranty valid, which is a must for long-term coverage. We take care of everything from cleaning to system checks—start to finish.

And if something ever goes wrong between visits? We handle air conditioning repairs—and we care for your heating system, too, so you’re covered in every season.

Frequently Asked Questions

If your system still runs on R-22, it’s likely near the end of its life. R-22 has been phased out, making it hard to find and very expensive—even basic repairs can cost more than they’re worth. While most newer systems use R410A, it’s also being phased out. The latest systems now use R32 or R454B, and we primarily install R32 for better long-term compatibility. If your system uses R-22 or R410A, it’s a good time to start planning for replacement—we’ll help you weigh your options.

The price depends on several factors—like the size of your home, the type of system you choose, and how energy-efficient you want it to be. Some systems are budget-friendly, while others come with advanced features and higher SEER ratings. We offer free in-home quotes so you can see exactly what works for your space and budget. No pressure, no guesswork—just straight answers.

We do! Replacing your AC isn’t always something you plan for, which is why we offer fast, flexible financing options. Whether you want to spread out payments or take advantage of promotional rates, we’ll help you find a plan that works. Our team walks you through everything so it’s simple and stress-free.

Yes—there are often rebates and tax incentives available for upgrading to a high-efficiency system. We stay up to date on all the latest programs, so we can help you take full advantage of what’s out there. When you work with Guthrie & Sons, we’ll always point you toward the best savings opportunities.

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.

Jim Hainline

2 weeks 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

2 weeks 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

3 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

3 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

4 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

5 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

5 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

5 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

6 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

7 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

7 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

7 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

7 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.

David Downhour

8 months ago

We bought our HVAC system from Guthrie & Sons. They have been monitoring our system online and later noticed a heat sensor issue.

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.

Get a Free Quote for Your Air Conditioning Replacement

We love helping people stay cool—it really puts a smile on someone’s face! If your current AC is struggling or has already called it quits, we can help. Guthrie & Sons is known across the San Diego area for honest service, quality installs, and great people. Let’s get your comfort back on track with a system that fits your home and your budget. Contact us now to request a free quote for your air conditioning replacement in San Diego, California.

8248 Ronson Road
San Diego, CA 92111

(619) 269-3013

Air Conditioning Replacement