AC Repair in San Marcos CA
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AC Repair Services in San Marcos and Nearby Communities
In the growing city of San Marcos, California — where thriving neighborhoods and busy commercial areas make comfort a priority — a dependable HVAC system is essential to keep indoor spaces pleasant all year long. While big HVAC chains might dominate the market, Earth Air stands out as the trusted local choice for both homeowners and small business owners. Here’s why working with us is a smart move if you’re looking for air conditioning services in San Marcos, CA.
Local Specialists with a Neighborly Approach
Choosing Earth Air means partnering with a team that understands San Marcos inside and out. As a local company, we’re familiar with the area’s climate patterns and how they impact HVAC systems. More importantly, we treat our customers like neighbors — because that’s exactly what they are. We take pride in offering a level of personalized service and genuine care that national providers simply can’t replicate.
Reliable HVAC Solutions Tailored for You
Even though we’re a local business, we provide the complete range of HVAC services you’d expect from any large contractor, with the added benefit of personal attention. Here’s what we can do for your home or business in San Marcos:
HVAC Installation
Selecting the right HVAC system is crucial for comfort, energy efficiency, and long-term savings. We guide you through every step, from understanding your property’s layout and usage to choosing a system that fits your lifestyle and budget. Once you’ve made your choice, our technicians handle the entire installation process with meticulous care, ensuring your new system delivers peak performance from day one.
HVAC Repairs
When your air conditioner or heating system starts acting up, we know you want it fixed fast and fixed right. Our experienced team conducts thorough inspections to pinpoint the exact issue, then performs reliable repairs that restore comfort and keep your system running smoothly. We focus on long-lasting solutions, so you won’t be calling us again for the same problem.
Preventive Maintenance
A well-maintained HVAC system runs better, lasts longer, and costs less to operate. That’s why we offer customized maintenance plans that include detailed inspections, filter changes, cleanings, and performance checks. By staying ahead of small problems, we help prevent major breakdowns, lower your energy bills, and extend your system’s lifespan.
Indoor Air Quality Solutions
Indoor air quality has a big impact on how comfortable and healthy your home or business feels. We install advanced air purification systems, high-grade filters, and humidity controls that help eliminate allergens, reduce contaminants, and maintain balanced moisture levels — creating a cleaner, healthier environment for everyone inside.
Heating services
When cooler weather hits San Marcos, you’ll want to know your heating system is ready. We handle everything from brand-new installations to seasonal tune-ups and prompt repairs. Our team ensures your heater operates efficiently and safely, keeping your indoor spaces warm and comfortable even on the chilliest days.
Furnace repair
If your furnace stops working or isn’t heating evenly, you can count on us. We perform in-depth diagnostics to identify the root cause, then deliver thorough repairs that restore dependable warmth. By getting it done right the first time, we help you avoid repeated issues and unexpected cold nights.
Putting Customers First, Every Time
At Earth Air, we believe your experience matters just as much as the final result. That’s why we take time to listen, explain your options, and craft solutions that are customized to your unique needs. Our transparent pricing, approachable team, and dedication to doing the job right have earned us glowing testimonials and repeat business from happy customers all over San Marcos.
Honest Pricing with Real Value
People often worry that local businesses might charge more. In reality, our streamlined operations and personalized approach let us offer fair, competitive pricing. Because we tailor everything specifically to your needs, you avoid unnecessary costs, making us a truly cost-effective choice in the long run.
Strengthening the San Marcos Community
When you choose Earth Air, you’re not just ensuring your own comfort — you’re also investing directly in the San Marcos community. We actively support local events, charities, and neighborhood projects, helping make our city an even better place to live and work.
Choose Earth Air Heating & Cooling
At Earth Air, we’re committed to taking on the heating and cooling challenges of San Marcos, CA, and nearby communities with unmatched skill and authentic care. Whether it’s a new installation, fast emergency repairs, or scheduled maintenance, our dedicated team is ready to keep your home perfectly comfortable year-round. To book a free consultation and experience our dedication firsthand, give us a call at (858) 567-1662 — we’ll help you maintain the ideal indoor climate, no matter the season!

our level of trust
EXCELLENT Based on 19 reviews Nerissa Damasco2025-06-23Trustindex verifies that the original source of the review is Google. Amazing experience! Called and was able to get an inspection the following day. We got a proposal quickly and all of our questions were answered. The process was so smooth and quick with great service all around. Installation went great. Techs were professional and took every measure to keep our house tidy and clean up after. Highly recommend! Keith Richards2025-06-09Trustindex verifies that the original source of the review is Google. Contacted Earth Air Systems to perform a pre-summer inspection of the heat pump they installed last year. They showed up as scheduled, inspected and cleaned the outside and inside sections of the unit. The lead technician, Daniel, did a good job communicating their findings and gave me some operational pointers. Very happy with Earth Air Systems. Brian Brown2025-04-24Trustindex verifies that the original source of the review is Google. Great job! Dr. Leah Stephens2025-04-10Trustindex verifies that the original source of the review is Google. Daniel and Santiago were great!!! Would highly recommend. They came out and knew what they were doing and did a great job. Kelsi Walts2025-02-06Trustindex verifies that the original source of the review is Google. My experience with this company was exceptional. Remington answered the phone on Saturday night and had his tech out Sunday morning. His tech Daniel was professional and knowledgeable. The part my heater needed was not readily available and Remington worked to find it to take care of us as soon as possible. Highly recommend! Spencer Lenzie2025-01-21Trustindex verifies that the original source of the review is Google. Working with Earth Air Systems was great. Remington was super communicative throughout the process and responded to texts and phone calls promptly. He worked with me on price to find a central system that was within my budget. His employees worked for two days straight installing the unit and new ducting. They were super friendly and took good care of my property, paying attention to cosmetic details and leaving my place clean. There were a couple small follow up issues I had and Remington showed up and took care of those promptly. Would definitely recommend to friends looking for an HVAC company! Jessica Hardesty2024-12-22Trustindex verifies that the original source of the review is Google. Remington and team have been exceptional to work with. They installed my HVAC system recently, and they went above and beyond to ensure that it was done correctly. They checked on me afterwards and plan to make some minor adjustments. Very responsive, professional, punctual and have taken the extra step to check out my system as I was buying my new house. I can't recommend them enough. Ian Reynolds2024-12-13Trustindex verifies that the original source of the review is Google. In June of 2024 I purchased a home in Campo, CA. As part of my mortgage agreement, the house needed to be outfitted with a designated heating and cooling system as the previous owners were utilizing a wood stove and a window A/C unit. The previous owners selected Earth Air Systems to install mini split heat pumps. Upon completing some work on the interior of my home, I noticed the splits were not functioning correctly. I contacted my realtor, who contacted Remington of Earth Air Systems, and he made the time to personally come out and inspect the units. In the following months, we realized that the company utilized to purchase these mini splits, Gree, did not provide enough information to the technician or myself regarding their products. While mini splits typically have an interior filter, some versions of Gree mini splits do not, and we were both very confused to say the least until independently discovering this about these units. Gree was absolutely no help at all and did not communicate with Remington, Earth Air Systems, or myself, but the entire time Remington assisted me through the process.. After coming out independently to inspect the units, Remington quickly scheduled that one of my units be replaced, and the other serviced within a week of me contacting him during the hottest part of the summer. As issues persisted, Remington went so far as to pay to replace the filters and send another technician out to service the units again, explain proper maintenance to me, and reassure me that the units were running efficiently and effectively. I was incredibly happy with the resulting clarity on the products, and the assistance I received. Thank you! Micaela Radillo2024-12-05Trustindex verifies that the original source of the review is Google. I had a great experience with Earth Air Systems Inc. Their team was professional, efficient, and easy to work with. They provided quality HVAC service at a fair price, and I’d highly recommend them to anyone. Cooper Ogle2024-12-05Trustindex verifies that the original source of the review is Google. I had a fantastic experience with Earth Air Systems! Remington and his team truly went above and beyond during the installation of my mini-split system. He took the time to explain my options, ensured the installation was flawless, and even followed up afterward to make sure everything was working perfectly. His attention to detail and dedication to customer satisfaction really impressed me. I highly recommend Earth Air Systems for anyone looking for top-notch HVAC services!