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Commercial HVAC

Commercial HVAC Service in Santa Ana, CA

Reliable Heating & Cooling Support For Local Commercial Properties

Keeping tenants, staff, and customers comfortable is critical for any commercial property. When a system fails or struggles to perform, it can disrupt operations, lead to complaints, and increase operating costs. At 20th Century Air, we provide commercial HVAC service Santa Ana businesses can rely on, from urgent repairs to long-term maintenance and energy-efficient upgrades.

We are a family-owned and operated HVAC company that has served Southern California since 1987. Our team collaborates daily with office buildings, retail spaces, HOAs, and other commercial properties throughout Orange County. Over more than 38 years, we have built our business on honesty, quality, and integrity, pairing modern products with good old-fashioned service with a handshake.

If you are responsible for a building and facing HVAC issues, our goal is to make things straightforward. We offer free estimates, flexible financing options, and clear recommendations, enabling you to make informed decisions that align with your budget and operational needs.

Protect your inventory and sensitive equipment with our precision temperature control and advanced air purification installations. Contact us at (714) 430-8006 or fill out our online form to receive a professional consultation and a detailed project estimate.

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Why Choose 20th Century Air?

  • Financing Solutions Available
    Ask us about our available financing options. Our valued partnership with Service Finance means that we can help you through any emergency no matter your situation.
  • Customer Care Focused
    We are capable, experienced and willing to help you find HVAC solutions. We promise to do it with a smile on our faces and treat your home with integrity and respect.
  • 35+ Years Experience in HVAC
    With over 35 years in the HVAC industry, we believe in staying up to date on the latest technology and remaining dedicated to delivering quality solutions to our customers.
  • Family Owned & Operated
    We are proud members of our community and take pride in serving families like ours across Southern California. We're from the area, know the area, and take solace in knowing there isn't much that will surprise us in our service area.

Frequently Asked Questions

Can your team handle HVAC for my type of commercial building?

Yes, our team works with a wide range of commercial properties. We regularly service and install systems for office buildings, retail spaces, restaurants, HOA common areas, and light commercial or mixed-use properties. Over the years, we have also supported new construction sites where HVAC systems are part of a larger project schedule. Because we work with all makes and models, we can usually help even if your property has a mix of older and newer equipment. If you have questions about a specific building type, we are happy to discuss it during a free estimate.

How often should a commercial HVAC system be serviced?

Most commercial HVAC systems benefit from regular maintenance several times a year. For typical business buildings, we often recommend scheduling service three to four times annually, spread across the seasons. This allows our technicians to clean components, check performance, and address issues before peak heating or cooling periods. For specialized facilities with heavier usage or stricter temperature requirements, we may suggest maintenance visits up to six times per year. We create maintenance schedules tailored to your building's operational needs, which support reliability and more predictable costs.

Will you recommend repair or replacement for an older system?

We evaluate each system carefully and then discuss repair and replacement options with you. Our company has a long reputation for honesty, and many customers mention that we have repaired older equipment when other contractors pushed for full replacement. During a visit, our technicians consider the age of the equipment, the cost and impact of the necessary repair, the equipment's past breakdown history, and its expected remaining service life. We then explain the pros and cons of repairing versus replacing, so you can choose the approach that best suits your building and budget.

Can you help my business improve energy efficiency and meet code requirements?

We regularly assist commercial clients in planning upgrades that support energy efficiency and comply with California code requirements. When we design or recommend systems, we consider Title 24 energy standards and how they apply to your project. Our team can discuss higher-efficiency equipment, control strategies, and smart thermostats that help manage energy use more precisely. For many properties, these steps can help reduce utility costs over time and contribute to meeting internal sustainability goals. During your estimate, we can walk through the options that fit your building and budget.

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Ready To Get Started?

Contact us using our contact form or give us a call at (714) 430-8006.
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Discover the 20th Century Difference

  • FAQ's Have Questions? We Have Answers!
  • Get to Know Us
    Learn about our company history and who we are.
  • Club Maintenance Membership Signup/Resign

    The Club maintenance membership includes 2 visits per year:

    One visit includes the maintenance of the air conditioning system.

    The other visit would include the maintenance of the heating system.

    As a club member, you would be on our priority scheduling list if any issues arise.

    As a club member, you would have exclusive discounts which would include:

    • 10% repair discount
    • 5% system replacement discount
    • 5% IAQ (Indoor Air Quality) discount