Air Conditioning Installation

Air Conditioning Installation in San Diego County to Keep You Cool and Comfortable

No AC in the California heat? Let’s fix that! A new air conditioning installation from Guthrie & Sons will bring cool, dependable comfort to every corner of your space. Whether it’s your home, rental, or business, we’ll install the right system, the right way.

When the Heat Is On, Count On Us to Cool Things Down

When the heat waves start hitting San Diego, you deserve a cool space to come home to. You need a system that kicks on when it should, cools your home the way it’s supposed to, and doesn’t drive up your electric bill. At Guthrie & Sons Heating, Air & Solar, we install high-efficiency air conditioning systems built to last—and built for the way San Diego lives.

We offer residential and commercial air conditioning installation services in San Diego County and nearby areas like Temecula and Murrieta for homes, rentals, offices, and new construction projects. Our certified technicians know how to match the right AC system to your space, lifestyle, and budget. We believe getting a new AC installed should feel exciting, not stressful. You’ll get clear pricing, real warranties, and expert installation you can count on season after season. Ready to stay cool for good? Call us or request your free quote today!

How Much Does an Air Conditioner Cost?

How Much Does an Air Conditioner Cost?

Air conditioning installation costs depend on a few different things, like how big your home is, what type of AC you want, how energy-efficient you’re aiming for, and how tricky the install might be. You’ll get a clear, upfront price from us before any work begins.

We Have Several Ways to Help You Save

Keeping your new AC system affordable is a big part of what we do. Here’s how we help:

  • Flexible Financing Options: We offer financing options so you can get the comfort you need now without waiting to save.
  • Special Offers: We run seasonal promotions throughout the year to help you save even more on new AC systems.
  • Tax Credits and Rebates: Our team will help you find any available incentives you qualify for and guide you through the paperwork.
  • Free Online Quoting Tool: You can explore your options and get real pricing estimates anytime, without having to call or schedule first.

Want help finding the best savings? Use our website to check your options or call our office—our friendly team is happy to walk you through it.

Why Work With Our Air Conditioning Installation Company?

There are plenty of air conditioning installation companies in San Diego that would happily take your business, but not all of them have your best interests in mind. Choosing the right team matters more than you think. You have to do your homework (and if you’re reading this, bravo—you’re doing your research!). Here’s why San Diego homeowners and businesses choose Guthrie & Sons:

Family-Owned and Operated

We’ve been serving San Diego since 2005, and we’re still proudly family-owned and operated today. When you work with us, you’re treated like part of the family—because you are.

No Upsells, Ever

We’ll never push you into something you don’t need. We recommend what’s right for your home, your budget, and your comfort, not what’s best for our bottom line.

Excellent Customer Service

We make it easy from the first call to the final installation. No runaround, no confusion—just friendly, knowledgeable help every step of the way.

Honest and Transparent Pricing

You’ll always know what you’re paying before we start. No gimmicks, no last-minute surprises—just fair, upfront quotes you can trust.

We Back Our Work

Every new installation comes with a 2-year labor warranty, and you have the option to extend it to 10 years. Plus, our Property Protection Guarantee means we treat your home with real care.

NATE-Certified Technicians

Our air conditioning installers aren’t just experienced—they’re nationally certified HVAC contractors. It’s the extra level of expertise that makes a big difference.

When the right air conditioning system is installed by the right team, you set your San Diego home up for comfort, efficiency, and lower energy bills for years to come. Sounds pretty great, right?

What Is the Best Air Conditioner to Install?

The best air conditioner isn’t the biggest one, the fanciest one, or the one with the highest price tag—it’s the one that fits your home and your needs best. Every home is different, and picking the wrong system can leave you uncomfortable and wasting money. At Guthrie & Sons, we take the time to match you with the best air conditioning system based on your home’s size, how you live in it, and what you actually need to stay cool and save energy.

Here are some things to keep in mind as you move forward with your San Diego AC installation:

Getting the Right Size AC Means Better Comfort and Fewer Problems

When you’re installing an air conditioning unit, the correct AC size is extremely important. A system that's too small will run nonstop and still leave you hot. A system that's too big will waste energy, cost more to run, and wear itself out early. At Guthrie & Sons, we do a full load calculation for your home—not a guess—so you get the right size unit that keeps you cool without the constant stress on your system.

Choosing an Energy-Efficient System Saves You Money

Installing a higher SEER (Seasonal Energy Efficiency Ratio) rated air conditioner isn’t just about being "green"—it’s about real savings month after month. New systems with a high SEER rating cost a little more upfront, but they pay you back every time your electric bill drops. When we install a new system, we help you find the right SEER rating for your budget and energy goals without pushing upgrades you don’t need.

Picking the Right Features Makes Your Life Easier After Installation

When you install new AC units, you get the chance to pick features that make a real difference. Things like variable speed motors for better humidity control, Wi-Fi thermostats to adjust temps from your phone, and zoning to cool different areas separately. At Guthrie & Sons, we walk you through these options so you can choose the right AC unit for your home’s energy efficiency and lifestyle.

Installing the Right Type of System Fits Your Home and Future Plans

Not every home needs the same air conditioner installation. Central air conditioning is great if you want whole-home cooling and air ducts, but an electric heat pump might be the better choice if you want both heating and cooling in one efficient system. For older homes, garages, or new additions, ductless mini split systems could be a smarter choice. We’ll help you think about how you use your space now—and how you’ll use it later—so the system we install makes sense for years to come.

A Professional Installation Protects Your System From Day One

No matter how good the equipment is, poor installation can ruin it from the start. Correct refrigerant levels, secure electrical connections, proper airflow setup—these things aren’t optional. Our certified technicians follow strict installation guidelines to make sure your new AC runs efficiently, safely, and lasts as long as it should. Good installation isn’t a bonus—it’s the foundation for everything.

Guthrie & Sons is always here for you long after the installation is done. We offer complete air conditioning services to meet all of your air conditioning needs, like AC repairs when parts wear out or problems naturally pop up over time, and AC maintenance to keep your system clean, efficient, and working like new. And when the time eventually comes for an air conditioning replacement, you’ll already have a trusted team ready to guide you through it.

Why You Should Never Skip AC Maintenance

Why You Should Never Skip AC Maintenance

Regular maintenance is the key to getting the most out of your new air conditioning system, no matter what type or brand you picked. San Diego residents face a long cooling season, so we recommend scheduling a professional tune-up once a year, ideally before summer hits. During a tune-up, we’ll clean the AC unit, check refrigerant levels, tighten connections, and make sure everything is running safely.

Skipping maintenance leads to higher energy bills, more frequent repairs, and a shorter system lifespan. A little care now can save you a lot of headaches later.

Protect Your New AC Installation with Our Hassle-Free Maintenance Plan

Our USA Membership Plan makes regular AC maintenance easy and stress-free. We’ll remind you when it’s time for service, so you don’t have to keep track or worry about missing an important check-up. Members get perks like priority scheduling, discounted service calls, and lower repair costs if anything ever comes up. Plus, staying on top of maintenance keeps your extended warranties valid—which is a must for long-term protection. From full system cleanings to detailed checks, we’ll take care of your AC like it’s our own.

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.

  • INSTALLATION

*Anniversary Sale*
20% Off GulfCoat Coating

In honor of our 20th anniversary, you can get 20% off GulfCoat coating for your heat pump or air conditioning system ($190 value). This protective coating resists condensation and moisture from sea spray, humidity and other harsh environmental conditions while helping to extend the life and efficiency of your system. Not valid on HVAC rooftop or package units. Can be combined with 20% anniversary sale offers only. Restrictions apply. System must be coated by 10/31/25 to receive this offer.

  • INSTALLATION

*Anniversary Sale*
20% Off Insulation and Ductwork

In honor of our 20th anniversary, you can get 20% off ductwork and insulation. Increase the airflow and energy efficiency in your home. Valid on residential properties only. Can be combined with 20% anniversary sale offers and Federal Tax Credits only. Must mention offer at time of estimate appointment. Restrictions apply. See dealer for details. System must be installed by 10/31/25 to receive this offer.

  • INSTALLATION

*Anniversary Sale*
20% Off a New System

In honor of our 20th anniversary, you can get 20% off a new heater, air conditioner, or water heater installation. Valid on residential properties only. Not valid on HVAC rooftop or package units. Can be combined with 20% anniversary sale offers and Federal Tax Credits only. Must mention offer at time of estimate appointment. Restrictions apply. See dealer for details. System must be installed by 10/31/25 to receive this offer.

  • 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 10/31/25.

Frequently Asked Questions

The cost depends on the size of your home, the type of system you choose, and how complex the install is. We offer free quotes to walk you through real options with real pricing. No pressure—just clear answers.

Most AC installations take about one day, sometimes two if ductwork needs extra work or upgrades. We’ll give you a clear timeline before we start, so you know exactly what to expect. No long, dragged-out projects here.

Smart thermostats can help you save energy, adjust temps from anywhere, and make your new system run even more efficiently. They also make it easier to fine-tune your comfort. We'll help you choose one that fits your home and lifestyle.

A properly installed and maintained AC system can last anywhere from 12 to 20 years. Choosing the right size and staying on top of maintenance make a big difference. We’re here to help your system last as long as possible.

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.

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.
Patrice Makovic
17:45 09 Jul 25
Last summer, I used Guthrie and Sons to replace my heating system with a new one and added an air conditioning unit. We also added two different zones in the house to be able to turn the system on independently from one zone to another. From the first contact to the six month maintenance visits, everything has gone smoothly. There were a couple of hiccups, but the company is very responsive and I have never had an issue with them not promptly responding and taking action to figure out and solve any problem. I highly recommend this company.
Carrie Reese
17:06 08 Jul 25
Guthrie & Son's did an amazing job on our new AC units. From sales through install they were all knowledgeable and helpful. They were very quick to get us all setup and when our home posed some unexpected issues they were able to pivot quickly and resolve them. I'd highly recommend them!
Kenneth Adelson
16:04 07 Jul 25
Had use Guthrie in the past for HVAC service, this time had them install a solar attic fan and additional vent. The service, as it had been the first time, was professional, polite, and on schedule. Pricing was fair (and consider that they offered a repeat customer discount without having to be asked). Would be happy to use them again when the need arises.
I offer 4 stars because I'm not a grade inflation sort. Three is sufficient, four is better than average. Five is reserved for knock my socks off amazing in ways I didn't expect - doesn't happen very often.
Patrick Smith
21:42 27 Jun 25
We had central heat and air put in two a year and a half ago. We've need to make a few adjustments to airflow to rooms since then. Each time, they are onsite withing 1-2 days and have resolved the issue each time. Their team is professional and incredibly friendly and knowledgeable. Very happy we went to Guthrie & Sons.
Bennie Beans
15:41 12 Jun 25
Mario was knowledgeable and courteous. He made sure our system would be sized right and that our existing ductwork was able to support the new system. The install team were prompt and efficient. They installed drop cloths and cleaned up inside and out after the job. So far I’ve been very happy with the work Guthrie and Sons have done for us.
Chris Toogood
21:52 06 Jun 25
Great local family business. And you actually get a live person when you call... And the technician was great and they come out quickly. No up selling too. He gave me two different price options on fixing my problem... band aid cheaper way or replacement. Great service.

Request a Free Quote for Your Air Conditioning Installation in the San Diego Area

Installing a new air conditioner is a major investment—you deserve a company that will do it quickly and correctly, not give you the runaround. At Guthrie & Sons Heating, Air & Solar, we focus on getting your system installed properly and providing the ongoing support you’ll need for years down the line. When you work with us, you’re treated like family—because once you’re a customer, you are. Call today or request your free quote online—we can’t wait to help you stay comfortable.

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