Ductless Mini-Split Services in San Diego

If your home doesn’t have the proper layout to install ductwork for a central HVAC system, or if you want to easily control the temperature in each room individually, a ductless mini-split system is the perfect heating and cooling solution for you.

Call us or schedule your appointment online for a free quote on a single or multi-zone ductless mini-split system.

Our Ductless Mini-split Services

No Ducts? No Problem: An All-in-One Heating & Cooling Solution

If you have an older home or your home’s layout doesn’t allow for ductwork, a ductless mini-split is the perfect solution for your heating and cooling needs. Ductless mini-split systems consist of an outdoor unit connected to your indoor units, which are installed in various rooms of your house. These convenient, multi-zone systems allow you to individually control each room of the house, making it an ideal and energy-efficient solution for many San Diego homeowners.

Residential Ductless Mini-Split Installation

When you’re looking for a heating and cooling system, a central split system might first come to mind. But, what if the layout of your home doesn’t allow for ductwork to be installed? The solution is easy – a ductless mini split system. Ductless systems allow you to heat and cool your home and gives you climate control for each zone. 

If you need help determining whether a central or ductless system is right for your home, we’re here to help. Our certified technicians will evaluate the layout of your home, discuss your home comfort needs, and provide the perfect solution for you. 

Commercial Ductless Mini-Split Installation

When it comes to your business, you want a reliable and efficient heating and AC system to keep your customers comfortable. Whether it’s in a free-standing building or in a shopping center, depending on where your business is located, your building may not have the necessary configuration to install a central split system with ductwork.

A ductless mini-split is the ideal solution. Install a zone (also known as a head unit) in each room of your business, allowing you to control the climate of each room individually. Ductless systems both heat and cool, so no additional heating or cooling units are needed. 

Commercial HVAC systems are complex and require certified technicians to ensure a perfect installation. You don’t want your heating and AC system to fail during business hours. Contact the experts at Guthrie & Sons Heating, Air & Solar to schedule a free estimate on a new installation.

Ductless Mini-Split Repair

When your ductless mini-split system breaks down or stops performing efficiently, it can leave you uncomfortable in the San Diego heat. Prompt and professional repairs are essential to restore your system to peak performance. Our experienced technicians specialize in diagnosing AC issues and repairing ductless mini-split systems, ensuring you get back to enjoying consistent, efficient cooling.

We pride ourselves on delivering fast, reliable, and affordable ductless mini-split repairs. Whether you’re dealing with an unexpected breakdown or noticing gradual performance issues, our team is ready to help. Regular ductless mini split maintenance can also prevent many common issues and keep your system running efficiently year-round. Don’t let a malfunctioning system compromise your comfort — contact us for expert repair services that will keep your ductless mini-split operating smoothly all year.

How Do Ductless Mini-Splits Work?

Mini-split heating and cooling systems work without needing ductwork. These types of systems consist of two separate units: an outdoor compressor and an indoor unit.

The indoor unit is responsible for introducing cool and conditioned air around the installed space, and the outdoor unit throws the absorbed heat out into the external atmosphere. The indoor and outdoor units are connected through a small hole in the wall.

One of the major benefits of a ductless system is that each indoor head unit (also known as a zone) can be controlled individually. 

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Take the Next Step With Guthrie & Sons

If you have questions about which heating and cooling system is right for your home, or if you’re ready to take the next step in maximizing energy efficiency, Guthrie & Sons Heating, Air & Solar is here to help.

Give our office a call or schedule a free estimate online today.

Ductless Mini-Split Benefits

HIGH-EFFICIENCY 

Mini-split systems are typically more energy-efficient than central split systems. Many mini-splits boast high SEER ratings. A SEER rating is an industry standard for measuring the efficiency of air conditioners.

The SEER ratings for mini-split systems usually range between 18 and 30 SEER. Systems 16-SEER or greater are considered high-efficiency. 

NO DUCTWORK NEEDED

The beauty of ductless systems is that no ductwork is needed. Instead, they use copper line sets to run the refrigerant to the indoor units. 

The lack of ducts makes these ventless air conditioner systems an especially smart choice for when installing ductwork would be too costly or unnecessary. Mini-splits offer an easy workaround.

ZONE CLIMATE CONTROL

Multi-zone mini-split systems allow you to keep each zone at a different temperature, giving you the power to control the temperatures throughout your house easily and exactly the way you want.

WHISPER QUIET

Ductless mini-split systems have sound ratings as low as 19 dB for the inside unit. With sound ratings that low, they can operate quieter than a whisper. This allows you to stay comfortable without being distracted by annoying noises.

PROMOTIONS

CURRENT OFFERS

WHY CHOOSE US

Family owned and operated since 2005.

Guthrie & Sons Heating, Air & Solar was founded by the first generation, Wes Guthrie. Built on old-school morals and family values, Wes believed in treating each customer like family and always doing right by the customer. The company has since been passed down to the second generation – Matt and Ben Guthrie. Continuing their father’s legacy, Matt and Ben continue to serve the community of San Diego county and beyond with professionalism and top-notch customer service.

WHY CHOOSE US

Our 100% customer satisfaction guarantee.

Installing a new heating and air system is an important investment in your home and you shouldn’t have to take a risk when selecting a contractor. With over 45 years of combined experience under our belt, we are confident our team will expertly handle your comfort system.  If you are not completely satisfied with the installation of your new system within 30 days of installation, we will remove the equipment and refund your money.

No hassles, no questions asked, it’s just that easy.

WHY CHOOSE US

Honest pricing with no upsells.

When you need assistance with your heating or air system, our certified technicians will come to your home and provide an evaluation of your system. If your system could use a repair that will enhance the safety and/or performance, we will provide a recommendation. Otherwise, if your system is performing optimally, we’ll let you know! We will not try to sell you on anything you don’t need. That’s the Guthrie promise.

WHY CHOOSE US

Join our USA Membership to protect your HVAC system.

A “set it, and forget it” approach when it comes to maintaining your heating and air system! Join our maintenance plan and become a USA member. We’ll reach out to you once a year (if you are on a furnace/heater only plan) or twice a year (if you are on a furnace/heater and air conditioning plan). USA members also receive exclusive benefits such as 15% discount on repairs, priority service, and more!

OUR REVIEWS

FROM OUR CUSTOMERS

Don’t just take our word for it. See what over 1,200+ customers have to say about working with us!

Jim Hainline profile picture
Jim Hainline
3 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 profile picture
Amy Graeber
3 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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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 profile picture
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.

CONTACT US

Book an appointment today.

If you have questions or if you’re ready to book an appointment with our team of certified technicians, give our office a call! We offer 24/7 live answering! For your convenience, you can also book your appointment instantly online.