Guthrie & Sons HVAC

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.

sunpower logo

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!

Janann MoJanann Mo
21:34 31 Mar 24
The prompt only allowed me to choose one option. But the whole team was professional, helpful, on time, and provided me with all the information I needed on the quality products that were installed.
Sanehpal SiraSanehpal Sira
18:16 27 Mar 24
RV 2RV 2
03:50 27 Mar 24
Great service ! Very professional
Robert CopperRobert Copper
19:02 26 Mar 24
Prompt, reliable and correct service. Rob is great and explains things thoroughly I have confidence Guthrie will fix it right the first time and not inflate estimates. Rob is a great emissary for your business. Happy to work with him.
Diana VinesDiana Vines
04:22 26 Mar 24
Guthrie provides fast and reliable service, does very good work . I highly recommend them.
21:33 25 Mar 24
Very courteous and answered all our questions. Very knowledgeable.
Tania ReyesTania Reyes
21:13 23 Mar 24
I’ve been with Guthrie & Sons since 2008. They installed my new unit and have serviced it twice a year ever since. Something has changed and not for the better. Most notable in communication. After a service visit I received several quotes for further work, mind you no call made during the visit to notify me of these items. New quotes also include a $95 visit fee! If I’m already paying for the initial visit why would you leave without speaking to me if more work was recommended? I called the number on the email that specifically said “if you have questions”. Needless to say the person who answered “Amy” couldn’t provide one single thing of information regarding my visit and I have to speak to the technician. She was politely dismissive and just kept referring me to the technician. This isn’t the level of service I’ve had in the past and not sure I can stay if this is the new standard.
Mark StarrMark Starr
15:54 23 Mar 24
Always professional and very respectful. I highly recommend Guthrie and Sons.
Dan FinneganDan Finnegan
00:49 23 Mar 24
Vera BeckerVera Becker
20:43 22 Mar 24
CJ WarnerCJ Warner
19:57 22 Mar 24
Carson and Matt were courteous, on time, communicative, and most importantly excellent at what they did. We are extremely pleased with our project!
Tami KiddTami Kidd
16:25 22 Mar 24
Rob and Anthony were extremely helpful and honest. I will recommend this company to all my family and friends.
Eric ClucheyEric Cluchey
16:55 21 Mar 24
Jim YeeJim Yee
21:50 20 Mar 24
Ryan WassermanRyan Wasserman
19:18 19 Mar 24
Merrideth BertschingerMerrideth Bertschinger
20:34 18 Mar 24
We have been using Guthrie and Sons for the past six years and are completely satisfied every time we have a visit
Brad MonroeBrad Monroe
23:56 15 Mar 24
Great service, personable staff, prompt, and finished when they said they would.
bill cbill c
17:26 15 Mar 24
They offered a very competitive price for a much higher SEER unit and they were efficient, clean and informative completing the removal and install of the new unit in one day. I am also very happy with the Bosh unit they recommended and installed.
Nancy WhittNancy Whitt
16:35 15 Mar 24
Zachary was professional, knowledgeable and helpful. Always count on Guthrie and Sons to do a great job
J WrightJ Wright
00:28 15 Mar 24
Great installation, great products, superior maintenance. Courtney in the Front office is organized & knowledgeable. Dave J. did a great job cleaning and checking our HVAC for the upcoming summer 🏝️🌞.

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