Solar and HVAC Services in Del Mar, CA

The HVAC Contractor Del Mar Homes Depend On

Need a quick AC repair? Thinking about upgrading your heating system? Ready to finally make the switch to solar power? At Guthrie & Sons Heating, Air & Solar, we’re your all-in-one team for home comfort in Del Mar.

With transparent pricing, skilled service, and real guidance, not sales pitches, we’ll make sure your home or business stays comfortable today, tomorrow, and for years to come. Contact us for an estimate on any HVAC service in Del Mar!

Del Mar’s Choice for Cooling, Heating, Indoor Air Quality, and Solar Services

Most days, the weather here makes things easy. But when your home starts to feel too warm or too cool, you need a system you can rely on and a good HVAC contractor to care for it. At Guthrie & Sons Heating, Air & Solar, we provide residential and commercial HVAC services in Del Mar, CA, to keep properties both big and small comfortable.

 

Our team services and installs all types of air conditioners, furnaces, heat pumps, and mini splits. We also provide air quality and solar solutions to manage our coastal air and help you make the most of Del Mar’s sunshine.

But we’re more than a business—we’re a family legacy. Passed down through generations, our company is built on trust, care, and a commitment to doing things the right way. When you call us, you get that family treatment, along with some of the best technicians in North County!

The Guthrie Way

Service Backed by Integrity, Experience, and Family Values

As a family-owned company with our name on the line, we take great pride in our work. That means we do things the Guthrie Way. Here’s what you can expect when you call us for HVAC services in Del Mar and more:

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5-Star Service

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

Honest Pricing

When we say no hidden fees, we mean it. Our pricing is upfront and transparent, with no fine print or gimmicks. We regularly have special offers, too. Before we get to work, we’ll walk you through your options and give you a clear breakdown of the costs.

Expert Technicians

Not all technicians have the same level of training. Ours are NATE-certified—the highest standard in the industry. Whether it’s a simple repair or a complex installation, we bring experience and expertise to every home we enter.

Family Values

We’ve been family-owned and operated since 2005, and we treat every customer like one of our own. We’re proud to bring personal care and dedication to every job. When you call us, you’re not just getting a service—you’re becoming part of the Guthrie family.

No Upsells

We’re not here to sell you what you don’t need. Our job is to find the best solution for you, not our bottom line. You can always count on our team for honest recommendations that prioritize your needs and your budget.

Protect Your Home and Wallet With Our USA Membership Plan

Protect Your Home and Wallet With Our USA Membership Plan

Your comfort, health, and safety are our priorities, and we know that a reliable heating and cooling system is key to all three. While plenty of Del Mar HVAC companies offer maintenance plans, our USA Membership Plan goes the extra mile to better meet your needs and save you money.

Regular maintenance is the best way to avoid costly repairs and keep your system running longer. We’ll reach out when it’s time for service in Del Mar, so you never miss a tune-up, even with your busy schedule. As a member, you’ll enjoy repair discounts, lower service call fees, and priority scheduling for your preventive maintenance, repairs, and more. Talk to your technician about signing up, or give our office a call to learn more!

Maintenance Plans

Concerned About Your Budget? HVAC Financing Can Help

Nobody plans for a heating or cooling system to fail, but when it happens, Guthrie & Sons has options to help make investing in new equipment easier at the moment. Our financing options help you get the heating and cooling system you need now while paying over time. You can learn more on our website and ask us any questions.

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Heating and Cooling Services in Del Mar, CA

Heating and Cooling Services in Del Mar, CA

At Guthrie & Sons, we’re an experienced HVAC company known for friendly service and fast, fairly priced work. If you’re searching for an HVAC company near me, we serve homes and businesses in and near Olde Del Mar and the Village, Beach Colony, Del Mar Woods, Del Mar Heights, Del Mar Terrace, the Fairgrounds and San Dieguito Lagoon, and East Del Mar near the polo fields.

Take a look at our Del Mar HVAC services below and contact us to schedule service.

Air Conditioning Services in Del Mar

Air Conditioning Services in Del Mar

Living in Del Mar, you get the ocean breeze, but it doesn’t always carry through the house—especially in areas tucked off the coast or homes with more sun exposure in the afternoon. By late day, indoor spaces can start to feel warm and a little stagnant. That’s where our Del Mar air conditioning services come in, keeping your home cool, balanced, and comfortable when it matters most.

Air Conditioning Installation

We specialize in air conditioning installation for both new construction and older homes without AC. Some homes cool unevenly depending on sun exposure, especially in the afternoon, so we take that into account when sizing and placing the system. With an air conditioning installation in Del Mar, the goal is steady, even cooling without hot spots or overworking the equipment.

Air Conditioning Maintenance

Being this close to the coast, your system deals with salt air and fine debris that can build up over time. That wear tends to show up faster on outdoor components and can impact performance if it’s not cleaned and checked. Our air conditioning maintenance in Del Mar keeps things running the way they should with coil cleaning, airflow checks, and a full system inspection before warmer weather sets in.

Air Conditioning Repair

When your system starts falling behind, you’ll feel it. Maybe certain rooms stay warm, airflow feels weaker, or the system runs longer than it used to. An air conditioning repair in Del Mar usually comes down to airflow issues, worn parts, or something affecting cooling performance. We track it down and fix it so your system can keep up again without running nonstop.

Air Conditioning Replacement

Some systems just reach a point where they can’t keep up anymore, especially after years of coastal wear. If your AC system in Del Mar is running longer, cooling unevenly, or needing repair after repair, replacement becomes the better move. An air conditioning replacement in Del Mar is about setting you up with a central system that cools your home more evenly and doesn’t struggle the way the old one did.

Mini Split Services in Del Mar

Mini Split Services in Del Mar

Mini splits show up all over Del Mar, especially in homes where certain areas never cool the same as the rest of the house. You’ll see them in guest suites, detached casitas, older coastal homes, and spaces added on over time. They’re also a good fit for rooms that get more sun during the day and hold heat longer. Guthrie & Sons offers ductless mini split services in Del Mar, including installation, maintenance, and replacement.

Mini Split Installation

A mini split installation in Del Mar includes a compact outdoor unit, one or more indoor units, and a slim line set that runs through the wall. It’s a clean install that doesn’t require tearing into the home, which matters in finished or coastal properties. You can cool a single room or set up multiple zones depending on how the space is used. It’s a flexible way to get control over areas that central AC doesn’t handle well.

Mini Split Maintenance

Mini splits tend to run more often in smaller areas that rely on them for daily comfort. Over time, salt air and fine dust can build up inside the unit and affect airflow. With our mini split maintenance in Del Mar, we clean the indoor components, check the drain line, and make sure the system is running smoothly. That keeps the airflow steady and helps the unit hold up over time.

Mini Split Replacement

When a mini split starts to fall behind, you’ll notice it taking longer to cool or not reaching the same temperature it used to. Noise and longer run times are also common signs. A mini split replacement in Del Mar means upgrading to a newer system that runs quieter, responds faster, and keeps the space comfortable without constant cycling.

Heat Pump Services

Heat Pump Services

More homes in Del Mar are moving toward all-electric setups, especially with California continuing to push away from gas systems. Heat pumps are becoming a common upgrade because they handle both heating and cooling in one system. That works well here, where you don’t need heavy heating but still want comfort on cooler mornings and evenings. Guthrie & Sons provides heat pump services in Del Mar, from new installations to ongoing maintenance.

Heat Pump Installation

A heat pump installation in Del Mar includes an outdoor unit, an indoor air handler, and the connections that allow the system to move heat in and out of your home. We take into account how your home faces the coast, which areas get more sun, and how air moves through the space. That way, the system can keep temperatures steady without constantly running.

Heat Pump Maintenance

Living near the coast means your system is exposed to salt air and fine debris that can build up over time. That kind of wear shows up in performance if it’s not addressed. Our heat pump maintenance in Del Mar includes cleaning coils, checking refrigerant levels, testing electrical components, and making sure airflow stays clear so the system keeps working the way it should.

Heat Pump Repair

When a heat pump starts falling behind, you’ll usually notice how long it takes to reach the temperature you set or how often it runs. It may cool fine in the morning but struggle later in the day. Our heat pump repair in Del Mar covers issues like refrigerant loss, worn components, and airflow problems so your system can keep up again.

Heat Pump Replacement

If your system is older or no longer keeping your home comfortable, replacement becomes the better option. Coastal conditions and regular use can wear systems down faster over time. A heat pump replacement in Del Mar focuses on upgrading to a system that fits your home, runs efficiently, and handles both heating and cooling without the same performance issues.

HVAC Services in Del Mar

HVAC Services in Del Mar

We offer HVAC services in Del Mar for a wide range of homes, from oceanfront properties and hillside houses to condos, guest homes, and light commercial spaces. Each one handles temperature a little differently depending on exposure to sun, breeze, and layout. We also offer financing to make larger projects easier to manage, maintenance plans to stay ahead of wear, and emergency service when something needs attention right away.

HVAC Installation

With an HVAC installation in Del Mar, it’s not just about square footage. Homes near the coast can stay cooler, while inland-facing areas or upper levels tend to heat up more during the day. We look at how your home is used, where the heat builds, and how air moves through the space. That helps us set up the right system, whether it’s central air, a heat pump, or a combination that fits your layout.

HVAC Maintenance

The best time for HVAC maintenance in Del Mar is before you start relying on your system more, usually in spring for cooling and fall if you use heating. Coastal air can wear on components over time, and missed maintenance is one of the main reasons systems fall behind. Our service follows a detailed checklist so airflow, performance, and key parts are all looked at before issues show up.

HVAC Repair

If your system is not turning on, not cooling evenly, or running longer without keeping up, it needs to be checked. We can come right out for an HVAC repair in Del Mar and diagnose the issue quickly, whether it’s airflow, electrical, or a worn component. You can check basics like the thermostat or filter, but if everything looks fine, we’ll handle the rest and get things working again.

HVAC Replacement

If your system is struggling to keep your home comfortable or repairs are adding up without much improvement, it’s time to consider an HVAC replacement in Del Mar. Coastal conditions and regular use can wear systems down faster, especially older setups. We look at how your current system is performing and what a new one would improve, then handle the replacement so you’re not dealing with the same issues again.

HVAC System Monitoring

As a Daikin Pro Elite Contractor, we offer HVAC system monitoring in Del Mar for compatible systems. These setups track performance in the background and flag things like longer run times or system alerts early. That gives you a heads-up before something turns into a bigger repair and helps keep your system running more consistently.

Heating Services

Heating Services

Del Mar doesn’t see extreme cold, but you’ll feel it in the mornings and after the sun goes down, especially near the water. A lot of homes are designed to stay open and breezy, not hold heat, so indoor temperatures can drop quickly. We provide heating services in Del Mar for furnaces, heat pumps, and ductless systems so your home stays comfortable when it cools off.

Heating Installation

A heating installation in Del Mar depends a lot on the home itself. Coastal properties, open layouts, and multi-level homes can all affect how heat moves through the space. Some setups work better with a heat pump, others with a furnace, and some benefit from ductless units in specific areas. We install systems that match how your home is built so you don’t end up with cold rooms or uneven heat.

Heating Maintenance

Most heating systems here sit unused for long stretches, then get turned on when temperatures dip. That’s when issues tend to show up. With our heating maintenance in Del Mar, we check ignition, clean internal components, test controls, and make sure everything is running safely before you need it. It’s a simple service that helps avoid problems on cooler nights.

Heating Repair

If your system is not turning on, blowing cool air, or struggling to warm the space, it needs attention. A heating repair in Del Mar often comes down to worn parts, thermostat issues, or systems that haven’t been used in a while. We handle it quickly so you’re not stuck dealing with a cold house when the temperature drops.

Heating Replacement

Older systems near the coast can start to lose reliability over time, especially after sitting unused and then being pushed to run. If your system is inconsistent or not heating evenly, it may be time for a heating replacement in Del Mar. We install systems that start reliably, distribute heat properly, and fit the way your home is used.

Furnace Services in Del Mar

Furnace Services in Del Mar

Furnaces are still found in a lot of Del Mar homes, especially older properties with central HVAC systems that have been in place for years. They don’t run often, but when the temperature drops at night or early in the morning, you expect them to turn on without any issues. Our furnace services in Del Mar are here to keep your system reliable or help you decide what to do if it’s not performing the way it should.

Furnace Installation

Coastal homes, remodels, and additions can all affect how heat moves through the space. We install furnaces that fit your current setup, check airflow, and make sure everything is connected safely so heat reaches the rooms that need it.

Furnace Maintenance

When furnaces sit unused for most of the year, small issues tend to show up when you finally turn them on. You might notice a delay in startup or a bit of burning dust at first. Our furnace maintenance in Del Mar includes cleaning internal components, checking ignition, and running through safety checks so everything starts and runs the way it should.

Furnace Repair

If your furnace struggles to turn on, runs without producing much heat, or shuts off too quickly, something’s off. A furnace repair in Del Mar often comes down to ignition issues, dirty sensors, or worn components that haven’t been used in a while. We track down the cause and fix it so your system can heat the home without hesitation.

Furnace Replacement

Many furnaces in Del Mar are older systems that have been left in place over time. They may still run, but you’ll notice uneven heat, longer run times, or rooms that don’t warm up. A furnace replacement in Del Mar focuses on improving that performance. We remove the old unit, check how the ductwork is functioning, and install a system that heats the home more evenly and reliably.

Indoor Air Quality Services in Del Mar

Indoor Air Quality Services in Del Mar

In Del Mar, homes are often open to ocean air during the day, which helps with airflow but also brings in salt, moisture, and fine particles. Over time, that settles into the home, especially in places with older ductwork or systems that run regularly. You might notice it in how quickly surfaces get dusty or how the air feels by the end of the day. Our indoor air quality services in Del Mar focus on cleaning that air up and improving how it moves through your home.

Air Purifiers

You’ll usually see it first on surfaces—fine dust showing up faster than expected, even with regular cleaning. A lot of that gets pulled through your system and keeps circulating. Our air purifier installation in Del Mar adds stronger filtration right into your system, and if it stops keeping up, our air purifier repair service gets things back where they need to be.

CO Detectors

With gas appliances still common in many Del Mar homes, carbon monoxide is something you want covered properly. It’s not just about having a detector—it’s about having it in the right place. Our carbon monoxide detector installation in Del Mar is based on how your home is laid out and where equipment is located, so you’re protected without gaps.

Dehumidifiers

Even near the coast, some areas of the home hold onto moisture longer—bathrooms, lower levels, or rooms that don’t get much airflow. That can leave the air feeling damp or slightly musty. A dehumidifier installation in Del Mar helps pull that moisture out, and our dehumidifier repair in Del Mar keeps humidity levels balanced when things start to slip.

Duct Sealing

If some rooms feel stuffy or don’t get enough airflow, the issue is often in the ductwork. Air can leak out before it reaches the space, and those same gaps can pull in dust from attics or crawl spaces. Our duct sealing in Del Mar closes those openings so air moves properly and stays cleaner as it travels through your home.

Media Air Cleaners

Standard filters only go so far, especially when your system runs often. Smaller particles can keep circulating through the home without being caught. A media air cleaner installation in Del Mar upgrades that filtration so more of those particles are removed before they spread.

Thermostats

Many Del Mar homeowners are upgrading to smart thermostats to better manage temperature changes throughout the day. Our thermostat installation in Del Mar makes it easy to adjust settings, set schedules, and control your system remotely. If your current setup isn’t responding properly, thermostat repair in Del Mar can often fix the issue without a full replacement.

UV Air Cleaners

Inside your system, moisture and dust can collect around the coil where air passes through. Over time, that affects both airflow and what’s moving through your home. A UV air cleaner installation in Del Mar targets those areas to help keep internal components cleaner and air moving more freely.

UV Lights

If you notice a musty smell when the system turns on, it often traces back to buildup on the indoor coil. That can affect airflow and overall air quality. A UV light installation in Del Mar places lights directly at the source to help reduce that buildup and improve the air coming through your vents.

Put Del Mar’s Sunshine to Work with Solar Power

Put Del Mar’s Sunshine to Work with Solar Power

Del Mar gets a bunch of sun most of the year, and with SDG&E rates where they are, a lot of homeowners are looking at solar as a way to control monthly costs. Even near the coast, energy use adds up, especially during those warmer afternoons when systems run longer. 

Our solar services include rooftop panels, battery backup for outages and peak pricing hours, and EV charger setup so you can use more of what you generate. We’ll walk you through what makes sense for your home and how it would actually perform day to day.

Switch to a Heat Pump Water Heater and Save More

Switch to a Heat Pump Water Heater and Save More

As more Del Mar homes move toward all-electric systems, water heaters are one of the first upgrades people look at. They run every day—showers, laundry, dishes—so even small gains in efficiency can make a noticeable difference on your monthly energy bill.

Heat pump water heaters work by pulling warmth from the surrounding air and using it to heat your water, instead of relying on traditional heating elements or gas. That means they use less energy to do the same job. Our heat pump water heater services include installation, maintenance, and repair, so you can make the switch with confidence and keep your hot water reliable without the higher energy use.

Fun Facts About Del Mar, CA

Del Mar is all about the coast, but it’s a little quieter and more laid-back than some of the busier beach areas. People spend time at Torrey Pines State Beach, Del Mar City Beach, and Del Mar North Beach (Dog Beach), or walking along the bluffs for wide-open ocean views. The Village is known for its restaurants, small shops, and easy walkability, especially along Camino Del Mar. You’ve also got the Del Mar Racetrack and the San Diego County Fair bringing in energy throughout the year, along with events at the fairgrounds.

Del Mar stays pretty mild thanks to the ocean. Most days sit in the mid-60s to mid-70s, with cooler mornings and evenings, especially when the marine layer rolls in. Homes closer to the water tend to stay cooler, while areas farther inland or up on the hills can warm up more in the afternoon. Like the rest of San Diego, Del Mar occasionally gets Santa Ana winds in the fall, which bring hotter, drier conditions for a few days.

Del Mar started as a small seaside resort town in the late 1800s, built around the railroad and coastal tourism. It grew steadily over time, especially after the Del Mar Racetrack opened in the 1930s, which helped put the area on the map. The community has kept a lot of that original coastal character, with a mix of historic homes, newer builds, and a strong focus on preserving the natural surroundings.

Start with local companies you see online or around town, but don’t rely on that alone. If you have the time in a non-emergency situation, it’s helpful to ask neighbors or other friends nearby who they’ve used, too. Look at reviews, services offered, and how long the company has been around. Make sure they’re licensed and insured, and pay attention to how they communicate with customers in responses to reviews, websites, advertisements, and more.

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.

Rocky profile picture
Rocky
3 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
4 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
4 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
4 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
4 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
4 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
5 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
5 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
5 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
6 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
6 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
6 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
6 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
7 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
7 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.
Rachel Phillips profile picture
Rachel Phillips
8 months ago
We recently had our A/C replaced by Guthrie & Sons, and I cannot recommend them highly enough. After getting five different bids, Guthrie & Sons stood out immediately—not just on price, but on expertise and professionalism. They even brought their engineers out to ensure the work could be done the right way, which gave us tremendous peace of mind.

From start to finish, their team was outstanding. They worked incredibly hard, treated our home with respect, and left everything spotless—truly the cleanest job site I’ve ever seen after a major project. The installation itself was seamless, and the quality of their work shows in every detail.

If you’re looking for a company that combines deep knowledge, excellent craftsmanship, and genuine care for their customers, Guthrie & Sons is it. Absolutely five stars across the board!
Liz Staff profile picture
Liz Staff
8 months ago
We had a wonderful experience with Guthrie and Sons. Anthony was our estimator and he did a very thorough job of explaining all of our options! Matthew, Bryan, and Isaiah were our installers and they were very efficient, capable, and personable. Our home did not have an existing HVAC system so they had to build the whole thing in an older house that had undergone several additions. We were up and running in just three days. They left the worksite clean at the end of each day. We highly recommend Guthrie and Sons!
Neil Domingo profile picture
Neil Domingo
8 months ago
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 profile picture
Trae Washburn
9 months ago
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 profile picture
David Maycock
9 months ago
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.

Schedule Service With Guthrie & Sons Today

At Guthrie & Sons Heating, Air & Solar, we don’t just show up—we show that we care. With free estimates, upfront pricing, and convenient financing, we make repairs and upgrades more manageable. Our team is knowledgeable, focused on making sure everything is working properly, and committed to delivering excellent service from start to finish. When we’re done, your home is more comfortable, more efficient, and set up to run the way it should.

Use our website or call (619) 404-5234 to schedule heating, air conditioning, indoor air quality, or solar services in Del Mar, California, with Guthrie & Sons Heating, Air & Solar. Thousands of Del Mar and San Diego homeowners trust Guthrie & Sons to do it right, and you can, too.

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