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?

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

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.

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 8/29/25.

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. Offer valid for an estimate appointment scheduled before 8/29/25.

INSTALLATION

Up to $7,750 off a New System

Save up to $4,000 in Tech Clean Equity rebates, up to $1,150 in manufacturer rebates and up to $2,600 in Federal Tax Credits for a total of up to $7,750 off a new installation.

Valid on residential properties only. Cannot combine with any other offers or discounts. Must mention promo at time of estimate appointment. Must be income-qualified to receive Tech Clean equity rebate. Restrictions apply. See dealer for details. Offer valid for an estimate appointment scheduled before 8/29/25.

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 8/29/25.

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.

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.

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.

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

Air Conditioning Installation