Solar and HVAC Services in Rancho Santa Fe, CA

Create Year-Round Comfort and Lasting Savings With Expert HVAC and Solar Solutions

When your indoor comfort doesn’t match Rancho Santa Fe’s beautiful surroundings, it’s time to call Guthrie & Sons Heating, Air & Solar. Whether your AC is struggling on a hot afternoon or your heater won’t kick on during a chilly morning, we’re here with fast, friendly help and smart energy solutions.

We specialize in full-service HVAC and solar for both homes and businesses—handling everything from repairs and replacements to custom system design. Give us a call or schedule online to get started—we make everything easy.

Reliable Heating, Cooling, Indoor Air Quality, and Solar Services in Rancho Santa Fe, CA

At Guthrie & Sons, we know what local property owners expect: reliability, transparency, and work done right the first time. Whether you're a homeowner dealing with uneven room temperatures or a business owner looking to reduce energy costs, our team brings decades of experience and a personal touch to every project.

We service all types of HVAC systems—central heating and cooling, heat pumps, gas furnaces, mini splits, and more. If your cooling system isn’t keeping up, your thermostat is acting up, or you want to upgrade to a more energy-efficient setup, we’ll give you honest advice and clear solutions. From routine maintenance to brand-new installations backed by top-tier warranties, we’re here to help you stay comfortable and in control.

Let us handle the airflow and climate control so you can focus on enjoying your space. Call us today or book an appointment online for solar and HVAC services in Rancho Santa Fe, California.

The Guthrie Way

Why Rancho Santa Fe Calls Guthrie & Sons

If you’re new to the area or just tired of HVAC companies that seem more interested in sales than service, you’re not alone—and you’re in the right place. At Guthrie & Sons, we’ve built a reputation as the team people find and stay with. We’re a family-owned business that prioritizes quality over volume, and relationships over quick wins.

We believe in doing things right—not just so your heating or cooling system works today, but so you can count on it (and us) for years to come. When you work with Guthrie & Sons, you’re not just getting a service call—you’re starting a partnership. And here’s what that looks like:

5-Star Service

We treat your home like it’s our own. From showing up on time to cleaning up afterward, we aim to give you a smooth, respectful, top-tier experience every step of the way.

Honest Pricing

Our quotes are straightforward and easy to understand. No pushy sales tactics. No surprise fees. Just clear recommendations and fair pricing from the start.

Expert Technicians

Our NATE-certified pros know HVAC inside and out. Whether it’s fixing a tricky airflow issue or designing a custom comfort system, we bring the skill and experience to get it done right.

Family Values

We’re not a big-box contractor—we’re a local, multigenerational team that truly cares about the people we serve. Expect professionalism, integrity, and genuine respect.

No Upsells

We’ll never sell you something you don’t need. If your system just needs a repair, we’ll fix it. If you do need a replacement, we’ll help you choose the best solution for your needs—not our bottom line.

Keep Your Comfort System Running Smoothly Year-Round

Let’s be honest—keeping track of HVAC maintenance isn’t exactly at the top of anyone’s to-do list. But it’s one of the best ways to avoid big repair bills, uneven temps, and unexpected breakdowns. That’s why we created the USA Membership Plan at Guthrie & Sons—to make taking care of your heating and cooling systems easy and affordable.

We’ll let you know when it’s time for a checkup, get you on the schedule fast, and give you access to members-only perks like discounted repairs, reduced service call fees, and priority service when it really counts. Whether you’ve got a heat pump, gas furnace, or traditional heating and cooling setup, we’ve got a plan that fits your system and your lifestyle.

Ask your technician about signing up, or give us a call today—we’ll take care of the rest.

Maintenance Plans

Financing That Works for You—and Savings That Stack Up

We know replacing a heating and cooling system or upgrading to a new air conditioner isn’t always planned—and it shouldn’t feel overwhelming. That’s why Guthrie & Sons offers flexible HVAC financing options that let you invest in your home’s comfort now and pay over time.

In addition to financing, we’ll help you take advantage of available rebates and federal tax credits when you install qualifying high-efficiency equipment like Energy Star®-rated heat pumps or smart thermostats.

Whether you're switching from an older HVAC system, replacing a furnace, or installing a complete heating and cooling system, we’ll walk you through every incentive you’re eligible for. Saving energy should come with savings in your wallet—and we’ll help make that happen. Get in touch today to get started!

Learn More About Financing

Heating and Cooling Services in Rancho Santa Fe, CA

Rancho Santa Fe may have mild weather most of the year, but that doesn’t mean your home should ever feel too warm or too cold. Coastal fog can bring chilly mornings, and summer afternoons still call for serious indoor cooling. That’s why our heating and cooling services in Rancho Santa Fe are tailored for comfort, energy savings, and year-round peace of mind.

Air Conditioning Services

Even in Rancho Santa Fe’s coastal hills, indoor cooling is a must—especially in late summer when heat lingers. Our air conditioning services in Rancho Santa Fe include installing new cooling systems, repairing airflow issues, and keeping everything running smoothly. Stay cool and energy-efficient with our expert care.

Air Conditioning Installation

When it comes to air conditioning installation, we match your home’s size and layout with an energy-efficient cooling unit that delivers consistent performance. Our team installs name-brand cooling systems with a focus on airflow and climate control. We make sure your new air conditioner is built for Rancho Santa Fe living.

Air Conditioning Maintenance

Regular air conditioning maintenance helps you avoid sudden breakdowns and rising energy bills during peak cooling months. We clean components, check refrigerant, and fine-tune airflow for better performance. Rancho Santa Fe homeowners trust us to keep their cooling systems reliable year after year.

Air Conditioning Repair

If your AC is blowing warm air, making strange noises, or struggling to cool, it’s time to call in the pros. Our air conditioning repair services in Rancho Santa Fe fix everything from airflow restrictions to refrigerant leaks. We troubleshoot quickly and get your cooling system back in order.

Air Conditioning Replacement

When air conditioning units start costing more in repairs than they’re worth, it’s time to look at something newer and more efficient. We’ll evaluate your current AC, walk you through modern cooling options, and recommend the best fit for your home.

Mini Split Services

We install, replace, and repair ductless heating and cooling systems. These systems consist of an outdoor unit connected to one or more indoor units, providing targeted temperature control and energy efficiency. When you need to expand the heating and cooling for your Rancho Sante Fe home, ductless mini splits are a great option as they heat and cool in one unit allowing you individual temperature control on a room by room basis.

Mini Split Installation

A ductless mini split installation is perfect for areas without central ducts like guest houses, sunrooms, or garages. We install single- and multi-zone units with reliable airflow and quiet operation. You’ll get a sleek, energy-efficient system tailored to your comfort needs.

Mini Split Maintenance

Routine mini split maintenance keeps your heating and cooling system running smoothly all year. We clean washable filters, check refrigerant levels, and flush condensate lines to prevent leaks. With biannual service, your mini split stays efficient and dependable.

Mini Split Repair

Noticed weak airflow, odd noises, or temperature swings? Our mini split repair experts diagnose and fix common issues like sensor failures, drain blockages, or wiring problems. We’ll get your cooling and heating back on track fast.

Mini Split Replacement

If your system is aging, underperforming, or facing costly repairs, a ductless mini split replacement may be on the horizon. We’ll evaluate your needs and install an upgraded, energy-efficient unit that improves your indoor climate and lowers energy usage.

Heat Pump Services

Heat pump systems offer an efficient way to heat and cool your home year-round using heat transfer rather than combustion. These systems move heat in and out of your space depending on the season—keeping you cool in summer and warm in winter. Because they don’t rely on gas, heat pumps are a cleaner, more energy-efficient choice for your heating and cooling systems. At Guthrie & Sons, our heat pump services in Rancho Santa Fe make it easy to install and care for these amazing systems.

Heat Pump Installation

Getting a heat pump installed is a smart step toward year-round comfort and better energy management. We’ll walk through your home’s layout, ventilation, and square footage to recommend the right model.

Heat Pump Maintenance

Like any hardworking system, your heat pump needs a little seasonal TLC. With regular tune-ups, your comfort stays steady and your energy savings add up.

Heat Pump Repair

If your heat pump isn’t cooling in summer or feels weak during winter, don’t wait it out. We offer responsive heat pump repair in Rancho Santa Fe for issues like short cycling, stuck valves, or unusual noises.

Heat Pump Replacement

When repairs become too frequent or your older unit is costing you more than it’s worth, we can help with a seamless heat pump replacement. We’ll explain your options, including modern high-efficiency systems with better temperature control and quieter operation.

HVAC Services

Your home heating and home cooling needs aren’t always the same as your neighbor’s—and that’s exactly why HVAC solutions shouldn’t be one-size-fits-all. Whether you rely on a central cooling system, a gas furnace, or a heat pump, your home deserves comfort that fits the way you live. At Guthrie & Sons, we tailor our HVAC services in Rancho Santa Fe to match your system, your space, and your lifestyle—so things feel just right year-round.

HVAC Installation

When we install HVAC systems, we don’t just drop in a unit—we design around your space and usage patterns. Whether it’s a two-story home with airflow challenges or a guest house that needs its own climate control, we make sure your new heating and cooling system works for every square foot.

HVAC Maintenance

Seasonal tune-ups aren’t just a box to check—they’re what keep breakdowns from blindsiding you mid-heatwave. We handle everything from tightening electrical connections to fine-tuning your thermostat. It's smart upkeep that protects your comfort and your wallet.

HVAC Repair

No cool air during a heat wave? Warm spots in winter? We’ve seen it all—and fixed it. Our HVAC repair techs show up ready to troubleshoot and explain the issue clearly. From refrigerant leaks to stuck dampers, we solve the problem without upsells or long delays.

HVAC Replacement

HVAC replacement doesn’t have to feel like a last resort. If your system is noisy, inconsistent, or running up your energy bills, we’ll walk you through your options clearly. We’ll help you choose a modern system with energy savings, comfort upgrades, and smart thermostat compatibility.

Heating Services

In Rancho Santa Fe, heating isn’t about surviving snowstorms—it’s about taking the edge off those crisp desert mornings and chilly coastal evenings. Whether you heat your entire home daily or just take the chill out of a few rooms, Guthrie & Sons delivers heating services in Rancho Santa Fe tailored to how you live. We know comfort looks different for everyone, and we’re here to help you find what feels right.

Heating Installation

Our heating installation starts with questions: Do you need to heat the whole house or just your main living area? Do you prefer zoned comfort or one consistent temperature? We help you choose a heating system—furnace, heat pump, or hybrid—that delivers warmth without wasting energy.

Heating Maintenance

Even if you don’t run the heat all winter, it still needs some love. Our heating maintenance service includes a detailed inspection of burners, ignition systems, airflow, and safety controls.

Heating Repair

A heater that makes weird noises, blows cool air, or cycles too often is more than annoying—it’s a sign something’s off. We handle heating repair quickly and honestly, whether it’s a small sensor issue or a more serious component failure.

Heating Replacement

Maybe your heating system still runs, but not well. If your utility bills are up, your system is uneven, or repairs are adding up, we’ll help you explore heating replacement. We’ll break down your options clearly, including high-efficiency heating units that offer better comfort and long-term energy savings.

Furnace Services

When temperatures dip in Rancho Santa Fe, a well-tuned gas furnace or electric unit makes your mornings more bearable and your nights more relaxing. Whether you’re turning on the heat for the first time in months or relying on it daily, our furnace services in Rancho Santa Fe are here to make sure everything runs right.

Furnace Installation

We size your system properly, offer options from trusted HVAC brands, and install your gas or electric furnace with long-term performance in mind.

Furnace Maintenance

Our annual furnace maintenance includes inspecting the burners, cleaning components, checking for gas leaks or carbon monoxide, and making sure your system starts up strong every time you need it.

Furnace Repair

If your furnace isn’t kicking on, is making a burning smell, or sounds like it’s struggling—don’t ignore it. Our furnace repair team is quick to respond and honest with solutions, whether it’s a faulty ignitor, clogged filter, or a worn-out fan motor.

Furnace Replacement

When repairs start stacking up or your system is over 15 years old, it might be time for a furnace replacement. We’ll inspect your current setup, let you know how much life it has left, and walk you through energy-efficient upgrade options that improve airflow and lower energy costs.

Indoor Air Quality Services in Rancho Santa Fe, CA

Even in a place as beautiful as Rancho Santa Fe, the air inside your home doesn’t always match the peace outside. Between everyday dust, pet dander, seasonal pollen, and all the microscopic stuff you can’t see, your HVAC system might be recirculating more than just comfort. That’s where Guthrie & Sons comes in—with smart indoor air quality services in Rancho Santa Fe, CA, that help your family breathe easier, sleep better, and feel more refreshed every day.

Air Purifier Installation

We install whole-home air purifiers that filter out allergens, pet dander, and bacteria. It’s a powerful upgrade for cleaner air and a healthier home cooling experience.

Air Purifier Repair

If your air purifier isn’t pulling its weight, we’ll troubleshoot the issue and get it running right. From clogged filters to wiring hiccups, we handle all air purifier repairs.

Dehumidifier Installation

Too much humidity indoors? We install dehumidifiers that keep your air balanced, helping reduce mold risk and improve overall indoor climate control.

Dehumidifier Repair

From faulty pumps to sensor failures, our dehumidifier repairs get things back on track. You’ll feel the difference fast—less damp, more comfort.

Duct Sealing

Leaky ducts can waste energy and pull in dirty air. Our duct sealing improves airflow, temperature control, and your HVAC system’s performance.

Media Air Cleaner Installation

Media air cleaners go beyond standard filters to trap microscopic particles. We install high-efficiency options that pair perfectly with your HVAC system.

UV Air Cleaner Installation

UV air cleaners use light to neutralize mold, viruses, and bacteria inside your HVAC system. We install these for invisible but powerful indoor protection.

UV Light Installation

Installed near coils or ducts, our UV lights keep your HVAC system cleaner. That means better airflow, fewer allergens, and a boost in air quality.

Home Safety & Comfort Controls

In Rancho Santa Fe, comfort means more than temperature — it’s about creating a home that runs efficiently and safely. When key devices fall short, even small issues can disrupt your sense of ease.

Our safety and control services in Rancho Santa Fe support your home behind the scenes. With dependable solutions and thoughtful upgrades, we help you maintain comfort without compromise.

CO Detector Installation

Carbon monoxide is serious business—we install CO detectors where they matter most. Enjoy round-the-clock protection for your family’s safety and peace of mind.

Thermostat Installation

Our team installs programmable and smart thermostats that improve temperature control and energy savings. Easily manage your heating and cooling from your phone or wall.

Thermostat Repair

When your thermostat acts up, your whole system suffers. We repair misreads, wiring issues, and communication errors fast.

Thermostat Replacement

Need an upgrade? We install programmable and smart thermostat replacements that help modernize your HVAC system for better efficiency and comfort.

Solar Services in Poway, CA

If you do not have solar panels on your Rancho Sante Fe home, you are missing out on huge energy savings. Solar panels offer several benefits, including lower energy bills, environmental sustainability, and increased property values. You can experience the power of renewable energy with our solar panel installation in Rancho Santa Fe.

Our expert team designs and installs solar energy systems for homes and businesses in the local area and throughout San Diego County.

Heat Pump Water Heater Services in Rancho Santa Fe, CA

Thinking about replacing your old gas water heater? A heat pump water heater is an energy-efficient upgrade that uses surrounding air to heat your water—saving you money over time.

At Guthrie & Sons, we install these systems for Rancho Santa Fe homeowners and help you take advantage of available rebates and federal tax credits. Let’s get your home set up with smarter, more efficient hot water today.

Frequently Asked Questions

Inverter heat pumps adjust their speed automatically to match your heating or cooling needs. That means steadier temperatures, lower energy use, and quieter operation compared to traditional systems.

We look at your home’s size, layout, insulation, and how you use each space. Then, we walk you through the best HVAC options, from heat pumps to central heating and cooling systems.

In Rancho Santa Fe, the coastal air can lead to excess indoor moisture—especially in well-sealed or shaded homes. A whole-home dehumidifier helps prevent musty odors, mold growth, and that sticky, uncomfortable feeling. We’ll help you decide if it’s the right fit for your space.

Watch for weak airflow, unusual noises, warm air, or higher energy bills. These are all signs your AC might need repairs—and we’re happy to take a look and get it sorted quickly.

Yes. Most heating and cooling system warranties require proof of routine maintenance. We handle that for you with reminders, records, and tune-ups that keep your system protected.

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.

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.

Phil Lane

17:18 10 May 25

Guthrie and Sons has provided great service. There are many HVAC companies in San Diego to choose from. They provided a very reasonable estimate for replacing our two AC systems. Once we said yes installation happened within days. It was a quality install. They answer the phone quickly when I've had questions. Happy to refer them to others.

Dianne Haase

20:57 02 May 25

Great customer service, technicians always on time and friendly. I’ve had my new hybrid heat pump for a few years and Guthrie & Sons are very proactive making sure everything is running smoothly. Very happy in my decision to use them!

Make an Appointment in Rancho Santa Fe With Guthrie & Sons

When your home comfort isn’t where it should be, you need a team you can count on—not just for one job but for the long haul. At Guthrie & Sons Heating, Air & Solar, we show up with solutions, not sales pitches. From emergency repairs to full system installs, we make it easy to get the heating, cooling, or solar service you need without the hassle.

Plus, you’ll benefit from free estimates on replacements, transparent upfront pricing, and flexible financing options to make your home comfort upgrades much easier to manage.

Schedule an appointment today with our team of experts. Call us at (619) 815-5783 to schedule heating, air conditioning, or solar services in Rancho Sante Fe, CA.

8248 Ronson Road
San Diego, CA 92111

(619) 269-3013