Solar and HVAC Services in Serra Mesa, San Diego

The Serra Mesa HVAC Contractor You Can Count On All Year Long

Serra Mesa sees hot, dry afternoons in the summer and cool, damp evenings in the winter—it keeps your heating and cooling system busy year-round. At Guthrie & Sons, we’ve been helping our neighbors in Serra Mesa stay comfortable since 2005, and we’ll do the same for you. Need an air conditioner installed? A heat pump tuned up? Interested in solar? Call today to schedule service or request an estimate!

Fast Heating, Cooling, Indoor Air Quality, and Solar Services in Serra Mesa, CA

Finding a reliable HVAC contractor in Serra Mesa doesn’t need to be so stressful. Too many homeowners have dealt with no-shows, rushed work, or bills that don’t add up. Some companies try to sell you things you don’t need, while others disappear once the job’s done.

You deserve better. At Guthrie & Sons Heating, Air & Solar, we show up, explain what’s going on, and get the job done right—every time. We’re always reachable, and we stand by our work.

Need a furnace repaired on a cold night? We’re there. Planning to install a new AC before summer hits? We’ll help you choose the right one. Want to cut down on SDG&E bills with solar panels? We’ll make it easier than you ever imagined.

With us as your HVAC contractor in Serra Mesa, San Diego, your home or small business stays comfortable year-round, your indoor air stays fresh, and your worries about your home start to lessen. Call or book online today.

The Guthrie Way

Meet the HVAC Contractor Serra Mesa Families Have Trusted Since 2005

We’re a second-generation, family-run company that’s been serving San Diego since 2005. For us, being your HVAC contractor in Serra Mesa is about more than fixing systems—it’s about treating people right. We know this community well, and we’re here to help however we can, whether that’s a quick repair, a full system install, or just answering your questions. Here’s what you can count on from us:

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5-Star Service

We show up when promised, do the work carefully, and leave your home clean. Every service visit matters to us, and we treat you like a neighbor, not a number.

Clear Pricing

No hidden fees and no confusing estimates. You’ll know the cost up front and exactly what to expect before we start.

Skilled Technicians

Our techs are NATE-certified (North American Technician Excellence), the top certification in the HVAC industry. That means your home and HVAC equipment are truly in the best hands.

Family-Owned

Since 2005, we’ve been serving Serra Mesa and surrounding neighborhoods as a proud, second-generation family business. This is more than our job—it’s our home too.

No Pushy Sales

We’re technicians, not salespeople. If a repair will do the job, that’s what we’ll recommend. You won’t be pushed into installing something new just because it makes us more money.

Keep Your HVAC System in the Best Shape Possible With Our USA Membership Plan

Keep Your HVAC System in the Best Shape Possible With Our USA Membership Plan

Most people know HVAC maintenance matters—but squeezing it into a busy schedule is another story. That’s why we created the Guthrie & Sons USA Membership Plan: to make it simple, affordable, and worth it.

When maintenance gets skipped, we see the same problems over and over: higher energy bills, weaker airflow, and systems breaking down right when you need them most. A quick seasonal tune-up can prevent all that. We’ll handle the reminders, the appointments, and the full checklist so your system gets the care it needs without you having to think twice about it.

As a member, you’ll get:

  • Priority service when things go wrong
  • Maintenance reminders so nothing slips past you
  • Exclusive discounts to keep repairs affordable
  • Preventive checkups that stop big problems early
  • Added perks designed to save you time and stress

Give us a call today, and we’ll explain how it works—and why so many of your Serra Mesa neighbors are already telling us the plan has paid for itself!

Maintenance Plans

Concerned About Costs? Talk to Us About Financing and Other Ways to Save

A new AC, furnace, or solar system can be a big investment—and sometimes it’s not something you can plan for in advance. But if your system gives out or you’re ready for an upgrade, waiting months to fix it isn’t really an option.

That’s why we offer financing with approved credit. It lets you move forward now and spread the cost out in monthly payments that feel more doable. We’ll explain the choices, answer your questions, and set everything up so the work can start right away.

Want to explore your choices ahead of time? Check out our website for pricing details, special offer promotions, financing information, and tax incentive opportunities. You can even use our free online quoting tool to get a clear idea of costs before you decide.

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Heating and Cooling Services in Serra Mesa, San Diego, CA

Heating and Cooling Services in Serra Mesa, San Diego, CA

Life in Serra Mesa stretches from Birdland to Civita, Mission Village to Cabrillo Heights, and everywhere in between. Whether it’s walking the Ruffin Canyon trails or afternoons at the Serra Mesa Recreation Center, this neighborhood keeps you busy. And when those Santa Ana winds bring hot, dry air, or the evenings cool off, your home here should always feel comfortable.

At Guthrie & Sons, we’re proud to be the HVAC contractor in Serra Mesa you can count on. From installations and maintenance to fast repairs, we make sure your home is ready for whatever the weather brings.

Explore our heating and air conditioning services in Serra Mesa below and let us know how we can help you!

Air Conditioning Services

Air Conditioning Services

Inland neighborhoods like Serra Mesa heat up fast, especially when the Santa Ana winds blow through. Many homes here rely on central AC to stay cool, but older systems often struggle with efficiency. Our air conditioning services in Serra Mesa cover everything from new installs to maintenance and repairs, so your home is ready for the hot stretches.

Air Conditioning Installation

With our air conditioning installation in Serra Mesa, we match the system to your home’s layout and cooling needs. Proper sizing and airflow are key to avoiding hot spots and high bills. We install high-efficiency equipment that keeps you cool while managing energy use.

Air Conditioning Maintenance

Our air conditioning maintenance in Serra Mesa is designed to prevent mid-summer breakdowns. We clean coils, swap filters, check refrigerant, and test electrical components. Regular care keeps your AC running smoothly, extends its life, and helps control monthly costs.

Air Conditioning Repair

When your system blows warm air, makes unusual noises, or stops cooling evenly, it’s time for air conditioning repair in Serra Mesa. We troubleshoot the problem—whether it’s electrical, refrigerant, or mechanical—and fix it quickly. Most issues can be solved in a single visit.

Air Conditioning Replacement

If your system is more than a decade old or repair costs are stacking up, it may be time for air conditioning replacement in Serra Mesa. We’ll guide you through your options, recommend a system sized for your home, and install it correctly for years of reliable cooling.

Mini Split Services

Mini Split Services

Some homes just don’t get even cooling with central air—or maybe your place was never built with ducts in the first place. That’s where our mini split services in Serra Mesa come in. These ductless systems give you precise comfort right where you need it, whether it’s an upstairs bedroom, a home office, an ADU, or a smaller house without ductwork. They’re efficient, flexible, and easy to control. We handle installation, maintenance, and replacement of mini splits so every part of your home stays comfortable.

Mini Split Installation

With our mini split installation in Serra Mesa, we set up indoor units in the specific rooms you want cooled—whether that’s just one bedroom or several zones throughout the house. It’s not the kind of project to take on yourself; proper wiring, refrigerant handling, and system sizing all need a licensed professional, or you risk poor performance, leaks, or a shortened system life.

Mini Split Maintenance

Even though they’re low-maintenance, ductless systems still need regular care to keep efficiency up. Our mini split maintenance in Serra Mesa includes cleaning filters, flushing drain lines, and checking refrigerant levels. Regular service prevents leaks, keeps airflow strong, and helps your system last years longer.

Mini Split Replacement

When a ductless unit starts making noise, losing cooling power, or driving up utility bills, it may be time for a swap. During your mini split replacement in Serra Mesa, we remove the old system and set you up with a modern, energy-efficient model. Newer units are quieter, sleeker, and better at handling hot summers without overworking.

Heat Pump Services

Heat Pump Services

A heat pump gives you one system for both heating and cooling, which makes life simpler and bills easier to manage. In summer, it works like an air conditioner to pull heat out of your home, and in cooler months, it runs in reverse to bring warmth back in. Our heat pump services in Serra Mesa cover everything—installations, repairs, maintenance, and replacements—so you always have year-round comfort from one piece of equipment.

Heat Pump Installation

With our heat pump installation in Serra Mesa, we set you up with an all-electric system that can do both heating and cooling. Instead of relying on a separate furnace and AC, you get one unit outside and an air handler inside. Modern heat pumps adjust their output automatically, so you stay comfortable without big swings in temperature or high utility bills.

Heat Pump Maintenance

Because they run in every season, heat pumps put in more hours than most systems. Our heat pump maintenance in Serra Mesa focuses on cleaning coils, checking refrigerant, testing moving parts, and making sure the system switches modes smoothly. A quick tune-up once or twice a year keeps it efficient and prevents small issues from becoming bigger and more expensive.

Heat Pump Repair

When your heat pump starts struggling, it usually shows in little ways—higher energy bills, uneven temperatures, or a system that won’t switch from cooling to heating. Our heat pump repair in Serra Mesa covers common fixes like blower motor replacements, sensor issues, and refrigerant leaks.

Heat Pump Replacement

After 10–15 years, most heat pumps start breaking down more often and cost more to run than to replace. During your heat pump replacement in Serra Mesa, we’ll help you choose a newer, more efficient model that runs quieter, cools better in summer, and provides reliable warmth in cooler months. It’s a smart way to cut energy costs while upgrading your everyday comfort.

HVAC Services

HVAC Services

From your AC and furnace to the thermostat on the wall, every part of your system plays a role. Our HVAC services in Serra Mesa make sure everything works together. Whether you need a new installation, seasonal maintenance, repairs, or a full replacement, we have every HVAC service you need under one roof.

HVAC Installation

When it comes to your HVAC installation in Serra Mesa, the key is matching the system to your home and how you use it. We look at your space and your energy priorities to design the right setup—whether that’s central AC with a furnace, an all-electric heat pump, or ductless units. Then we install it carefully so it runs the way it should from day one.

HVAC Maintenance

Skipping service always catches up with you. Our HVAC maintenance in Serra Mesa is about preventing the sudden breakdowns that cost the most. We clean, test, and fine-tune your system so it runs efficiently, keeps your air clean, and lasts longer. A couple of visits a year saves you from bigger headaches later.

HVAC Repair

When your heating or cooling system quits, you want it fixed fast. That’s why we focus on providing same-day service. Our HVAC repair in Serra Mesa covers everything from noisy motors and weak airflow to thermostat issues and refrigerant leaks. We’ll find the problem, explain it clearly, and get things back to normal without dragging it out.

HVAC Replacement

Every system eventually reaches the point where repairs just don’t make sense. Our HVAC replacement in Serra Mesa helps you upgrade to a modern, energy-efficient system that’s built for your home. Whether you want to go all-electric or stick with a furnace and AC, we’ll guide you through your options and handle the switch smoothly.

HVAC System Monitoring

As a Daikin Pro Elite Contractor, we can keep tabs on your system from a distance. Our HVAC system monitoring in Serra Mesa lets us spot small issues before you feel them, make quick adjustments, and show up prepared if service is needed. That means fewer surprises and faster fixes when something does go wrong.

Heating Services

Heating Services

Cool evenings in Serra Mesa call for a reliable heating setup you can trust. Our heating services in Serra Mesa include system installations, tune-ups, fast repairs, and full replacements. With California moving away from natural gas, we also help homeowners choose efficient electric options that keep you warm today and meet future standards.

Heating Installation

A heating installation in Serra Mesa starts with figuring out what works best for your home. Many houses here still use natural gas furnaces, while others rely on propane. More homeowners are now switching to electric heat pumps since they handle both heating and cooling and cut energy use. We’ll explain each option clearly and help you choose the system that makes the most sense for your home and budget.

Heating Maintenance

A system that goes year after year without a checkup usually doesn’t last as long as it should. Our heating maintenance in Serra Mesa is a quick service—usually about an hour—that can prevent the bigger problems we see all too often. By cleaning, testing, and tightening things up, we help you avoid surprise breakdowns and high repair bills.

Heating Repair

Heaters break down in different ways—sometimes it’s a thermostat, sometimes a motor, sometimes a part that costs more than you’d expect. With our heating repair in Serra Mesa, we make sure you understand what failed, what it will take to fix it, and the cost before we start.

Heating Replacement

A heating replacement in Serra Mesa gives you the chance to rethink your setup. You don’t have to stick with a furnace if you’d rather go with a heat pump or ductless mini split that can handle both heating and cooling. We’ll compare your options, explain what each means for your bills and comfort, and help you upgrade with confidence.

Furnace Services

Furnace Services

When the temperature dips at night, a working furnace keeps your home warm and welcoming. Our furnace services in Serra Mesa include installation, repair, maintenance, and full replacements. No matter the brand or age of your system, we’ll keep it safe, efficient, and ready to run when you flip the switch.

Furnace Installation

With every furnace installation in Serra Mesa, the details matter—system size, fuel type, and airflow setup all affect performance. We calculate the right capacity, ensure ductwork is sealed, and set up features like variable-speed blowers for even heating. A properly installed furnace means comfort without wasted energy.

Furnace Maintenance

Dusty burners, worn belts, and dirty filters are some of the issues we see when furnaces go too long without care. Our furnace maintenance in Serra Mesa is a full checkup that cleans components, tests safety controls, and keeps efficiency up. One visit a year helps your furnace last longer and keeps breakdowns at bay.

Furnace Repair

Common calls for furnace repair in Serra Mesa include failed ignitors, noisy blower motors, or systems that short cycle. We stock our trucks with the parts most likely to fail so repairs can often be made on the spot. You’ll always know what the problem is and what it costs before we fix it.

Furnace Replacement

Old furnaces often struggle with uneven heating, rising utility bills, and frequent repairs. Our furnace replacement in Serra Mesa upgrades you to a modern, high-efficiency unit that heats more evenly and runs quieter. We handle removal, installation, and testing so your new system is ready to go immediately.

Indoor Air Quality Services

Indoor Air Quality Services

In Serra Mesa, the air inside your home can sometimes feel heavier than the air outside. Traffic from I-15 and I-805 brings in exhaust, while Santa Ana winds blow dust right through windows and doors. Many houses here also have older ductwork that circulates dust, pet dander, and even mold spores along with everyday cooking and cleaning fumes. That’s why we offer indoor air quality services in Serra Mesa to filter out pollutants, balance humidity, and leave your home feeling fresher and healthier.

Air Purifier Installation

With our air purifier installation in Serra Mesa, we set up whole-home systems that filter dust, allergens, and odors through your HVAC equipment. Instead of plugging in units room by room, you get cleaner air throughout the house from one system. It’s a simple way to make the air you breathe feel fresher every day.

Air Purifier Repair

If your system isn’t cleaning the air like it used to, we can help. Our air purifier repair in Serra Mesa restores your equipment so it’s actually pulling out allergens, odors, and fine particles again. That way, you notice the difference in your comfort and your breathing.

CO Detector Installation

Carbon monoxide is a risk you can’t see or smell. That’s why we offer carbon monoxide detector installation in Serra Mesa homes, so you always have a line of defense against this dangerous gas. With reliable monitors in place, you and your family can feel safer day and night.

Dehumidifier Installation

Humidity in Serra Mesa can make your home feel warmer than it is and even create mold or musty smells. With our dehumidifier installation, we tie the system into your HVAC so it keeps indoor moisture balanced. The result is cleaner air, fewer issues with dampness, and a home that feels more comfortable year-round.

Dehumidifier Repair

If your dehumidifier is running nonstop, making noise, or not lowering the humidity, it’s time for service. We handle dehumidifier repair in Serra Mesa to get the unit back on track. That means less stickiness in the air and better protection against mold and moisture damage.

Duct Sealing

Older homes in Serra Mesa often deal with leaky ductwork that lets cooled or heated air escape. Our duct sealing service keeps that air where it belongs, improving efficiency and comfort from room to room. You’ll notice more consistent temps and less dust moving through your vents.

Media Air Cleaner Installation

We install media air cleaners in Serra Mesa homes that trap the smaller stuff regular filters miss—like pet dander, smoke, and pollen. These thicker filters slide right into your system, last longer than standard filters, and help keep your whole home’s air noticeably cleaner.

Thermostat Installation

With our thermostat installation in Serra Mesa, we’ll set you up with the right model—whether that’s a simple programmable option or a smart thermostat you control from your phone. The goal is better comfort, lower bills, and more control over your HVAC system.

Thermostat Repair

When your thermostat isn’t reading correctly, your system can run too much or not enough. We handle thermostat repair in Serra Mesa to fix those issues fast. You’ll get consistent temperatures again and avoid wasting money on extra energy use.

Thermostat Replacement

If it’s time for an upgrade, we make thermostat replacement in Serra Mesa simple. A new unit gives you more control, remote access, and even energy savings. We’ll help you pick a model that matches your needs and handle the install so it’s ready to go.

UV Air Cleaner Installation

Our UV air cleaner installation in Serra Mesa sets up lamps inside your HVAC system that neutralize bacteria, mold, and viruses before they circulate through the house. It’s a silent, hidden way to improve the health of your indoor air.

UV Light Installation

Moisture around your AC’s indoor coil is the perfect place for mold and microbes. With UV light installation in Serra Mesa, we place lamps near the coil to keep it clean. That means fresher-smelling air, a more efficient system, and healthier airflow in every room.

Solar Services

Solar Services

Life in Serra Mesa comes with plenty of sunshine, and it makes sense to put that sun to work. With our solar services in Serra Mesa, we install rooftop panels, battery storage, and even EV chargers so you can power your home the smart way. That means lower electric bills, protection from SDG&E rate hikes, and less dependence on the grid when the heat’s cranking and everyone’s running their AC.

For many homes here, installing a solar system is more than just a green choice—it’s a practical one. Roofs often get wide-open sun exposure, making them perfect for panels. And with energy costs in San Diego climbing, the savings add up fast. We’ll handle the design and installation so you can focus on enjoying a cooler, more efficient home.

Heat Pump Water Heater Services

Heat Pump Water Heater Services

In Serra Mesa, space is always at a premium—garages double as storage, and utility rooms aren’t exactly huge. That’s why a heat pump water heater is such a smart fit here. It uses the warmth in the air to heat your water, so you still get long showers and hot loads of laundry without the big energy bill or a bulky tank taking up space.

In a neighborhood where garage and utility space is limited, a heat pump water heater can free up valuable room while lowering your monthly bills. Whether your current system is wearing out or you’re making upgrades during a remodel, our heat pump water heater services in Serra Mesa give you an efficient option that just makes sense for everyday life here.

Fun Facts About Serra Mesa

Look for a contractor who covers all the basics: licensed in California, fully insured for your protection, and upfront about pricing and the work they’ll be doing. Don’t just skim the star ratings—read reviews to see how they communicate and follow up after a job. It also helps to check their social media; reputable companies often post real project photos and useful tips. And if you’re still unsure, ask for references—you should feel confident about who’s working in your home.

Yes, Serra Mesa is considered a great place to live in San Diego. It’s a central neighborhood with easy access to major freeways, hospitals, and shopping, while still keeping a quieter, residential feel. Families, young professionals, and retirees all call it home because it balances convenience with a comfortable suburban vibe.

Serra Mesa was largely developed in the 1950s and 60s as San Diego expanded northward after World War II. The area was named after Junípero Serra, the Spanish friar who helped establish California’s early missions. Today, you’ll still see many of the original mid-century homes alongside newer remodels and community developments.

Serra Mesa has a population of around 24,000 residents. The community is diverse, with a mix of families, professionals working at nearby hospitals and offices, and longtime residents who’ve been here for decades. Its size makes it feel like a true neighborhood while still being part of the larger San Diego city life.

The main zip code for Serra Mesa is 92123, which covers most of the neighborhood. Parts of the area near Mission Village and surrounding streets may also overlap with nearby codes, but 92123 is the one most commonly tied to Serra Mesa addresses.

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.

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.
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.

Make an Appointment with Guthrie & Sons, The Best HVAC Contractor in Serra Mesa, San Diego

For us at Guthrie & Sons Heating, Air & Solar, being an HVAC contractor in Serra Mesa, San Diego, California, isn’t just about fixing and installing equipment—it’s about taking care of people. We’ve built lasting relationships here by showing up when we say we will, doing the job right, and standing behind our work. Whether it’s your first call with us or your fifteenth year as a customer, you’ll always get the same honesty, care, and quality service. Schedule your HVAC, solar, or water heater service with us today!

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