Guthrie and Sons | Heating & Air San Diego

Solar Installation

With an average of 260 days of sunshine per year in San Diego, it’s a no-brainer to power your home with renewable energy. Whether you need a solar panel installation, residential battery back up, or an EV charger, Guthrie & Sons has you covered.

Solar Installation Services

Take the first step to renewable energy

With utility costs on the rise, more and more San Diego homeowners are turning to renewable energy sources like the sun. If you own your home and plan on living there for at least the next 10 years, and you pay an average of over $100/month in utility bills, you are the perfect candidate for solar. 

Free yourself from being dependent on the utility company and install a new solar system with the experts at Guthrie & Sons Heating, Cooling & Solar. 

Powered by SunPower

Living in Southern California, San Diego has an average of 262 days of sunshine per year. Powering your home with renewable energy is a no-brainer. Guthrie & Sons is proud to partner with SunPower, offering the most innovate and reliable solar power technology. With clean, minimalistic designs and an improved technology, SunPower panels have an extra layer within in the back side of each panel, allowing some of the sun’s light to be reflected back into the solar cell, which helps to generate even more energy.

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Industry-leading warranties for peace of mind

Installing a new solar system is an investment. While your investment will pay off ten-fold in the years to come by offsetting your utility costs, you want to be sure it’s installed properly. Our certified installers are factory trained to install to manufacturer specs. In the rare chance a manufacturing defect occurs or there is an issue with your solar system, rest assured your system is backed by industry-leading warranties. 

Our SunPower solar systems are backed by a 25-year warranty. If you experience an issue with your solar system within the first 25 years, the cost to restore the system back to working order is covered.*


sun power 25 year warranty badge

Valid on solar panels, microinverters, and the racking system.


sun power 25 year warranty badge

Valid on solar panels, microinverters, and the racking system.

Take the next step with Guthrie

If you want to learn how much you can save on your utility bills with a solar panel installation, or, you’re ready to take the next step towards renewable energy give our office a call (619) 269-3013. Our team of experts is here to help!

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Current Offers

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Save on a maintenance, repair or new installation.

Our Solar Installation Process



We’ll first ask you to provide us with a copy of your utility bill so we can determine your expected energy usage. We will also ask if you plan on making home improvement upgrades that may affect your usage, such as a new heating and air system or a new EV charger.

The size of your solar system will be determined by your energy usage. We want to be sure to size your system a little more than what your home typically consumes.



After we determine the proper system size for your family’s needs, we will come out and conduct a site survey. During a site survey, we’ll do an inspection of the home, evaluate the layout of the electrical wiring, and determine a plan of action for the installation. 



Depending on the size of your solar system, the installation typically only takes one day. Our certified solar technicians will first start with precisely measuring your roof and installing the racks which the panels will lay on. Next, the electrical wiring will be installed and connected to your electrical panel. Finally, your solar panels will be set into place on the racks. 



After your solar system is installed and before you start reaping the benefits, you must receive your final permit from the county and a final approval from the utility company to operate your system. 

Rest assured, we will take care of the final permitting and approval process with the utility company on your behalf.


EV Charger Installation

With gas prices on the rise, San Diego homeowners are turning to electric cars. Enjoy the convenience of charging your vehicle at home with a residential EV charger. 

Book an appointment for a quote to install your EV charger. 

Battery Back Up

Pair your solar system with a battery back up from Guthrie & Sons. When you have a power outage, your battery back up system allows you to control which appliances you want to remain powered. The next time a storm rolls through, you’ll have peace of mind knowing you can continue powering your appliances.

Get a free estimate on a battery back up system with Guthrie & Sons.



The Guthrie Way

Why Choose Us

As a family-owned company with our name on the line, we take pride in our work.


Guthrie & Sons is family-owned and operated for two generations. We take pride in treating each customer with the dedication, quality, and care you deserve.

5-Star Service

We take pride in setting the gold standard for HVAC service. Our dedicated team of experts is committed to delivering nothing less than 5-star quality service in every aspect of our work.


With decades of experience in the HVAC industry, our team of seasoned professionals know heating and cooling inside and out. Our expertise shines through in every installation, repair, and maintenance service we provide, ensuring your home stays comfortably climate-controlled.

Honest Pricing

As a family-owned company, we aim to keep costs as low as possible for our customers. When you partner with us, rest assured you will receive expert service at an affordable, competitive price.

No Upsells

We believe in straightforward, no-nonsense HVAC service. When you choose us, you won't encounter any upsells or hidden fees. We're committed to providing you with the services you need, without any unnecessary extras. Trust us for HVAC solutions that prioritize your comfort and your budget.



Don’t just take our word for it. See what over 850+ customers have to say about working with us!

Colin PremdasColin Premdas
20:03 13 Jun 24
Juan was on time, professional and courteous. Highly recommended
Gary LovelyGary Lovely
18:31 13 Jun 24
Rob was very professional and answered all of my questions around the service process. He cleaned up after himself and provided suggestions for prolonging the performance of my AC unit.
Will KnightWill Knight
20:21 11 Jun 24
Quick efficient A/C tune up
San Diego DermatologySan Diego Dermatology
19:59 11 Jun 24
The technician was on time and very courteous. He explained everything thoroughly in layman’s terms and took pictures. He emailed me the pictures and summary of his findings. I would highly recommend this company.
Monica MoraMonica Mora
16:47 11 Jun 24
Jonathan S was great.Definitely recommend Guthrie.
Diane RueschDiane Ruesch
01:47 11 Jun 24
Lorraine RiehmanLorraine Riehman
18:59 10 Jun 24
Thomas AristideThomas Aristide
17:59 09 Jun 24
Jonathan was punctual and addressed both my concerns as well as noted additional items he found during service. Another great service from Guthrie and Sons.
Chad GongChad Gong
17:50 09 Jun 24
Knowledgeable, professional, honest!
Tanya DTanya D
22:18 07 Jun 24
Marilyn RutlandMarilyn Rutland
16:33 05 Jun 24
This was my second annual maintenance for my mini -split system and what a good experience it was. Jonathan was on time, explained the process and was very patient with my questions. From shoe coverings to explanations, Jonathan provided excellent service.
16:29 05 Jun 24
Kelli IlvesKelli Ilves
18:54 04 Jun 24
I requested quotes from 4 different businesses and received 4 different strategies on how to install mini split AC systems in our house. Guthrie & Sons Tech Vlad came up with the most logical and smart strategy on how to install the units on our house. It became clear that he is very knowledgeable and puts in actual thought on how to solve this installation. The Technician is highly trained, knowledgeable and has great soft skills. He answered all my questions well. The quote was competitive, however not the cheapest. The competence was far above the competition, hence we went with them. They were respectful with installation and machines have been running great a year later. There are minor issues with the units that are addressed a year later during the annual maintenance visit by another highly skilled Tech Johnatan. Overall, very happy with the performance of the units and the customer service. I recommend this company without a doubt!
Sandy DavisSandy Davis
19:56 03 Jun 24
Jonathon performed the annual maintenance on system purchased frim Guthrie last year. He was efficient, thorough, had great communication skills and a cheerful disposition. Guthrie & all employees we’ve encountered thus far are tops!
Derek AllenDerek Allen
20:21 02 Jun 24
Jonathan S. continues the stellar service we get from Guthrie & Sons as they install and maintain our HVAC systems.
22:47 29 May 24
Jonathan explained all aspects of what he was doing, took his time to make sure everything was in tip top shape after he repaired AC& Heating unitI have no problem in recommending your company.
M GreenM Green
03:30 29 May 24
As always, Great, from initial phone call, to punctuality and completion
Pamela JonesPamela Jones
20:27 28 May 24
Juan was very professional and very helpful, I was glad to see him again.
chris Rchris R
16:12 28 May 24
The serviceman was on time and very professional. I will recommend them to friends and family or anyone who asks in the future. I highly recommend!
Debora DemarestDebora Demarest
21:31 23 May 24
As a company overall Guthrie & Sins are Totally professional, technical, & customer-centric. Specifically, their staff acknowledges repeat customers. From when Courtney answers your call to when one of my requested technicians Rob M services my HVAC system I highly recommend this company.

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