Trusted HVAC Experts Serving Orange & Los Angeles Counties

Reliable Heating and Air Conditioning Services Backed by Over 65 Years of Experience

(714) 821-7070

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Our Story

Greenwood Heating & Air Inc was founded with a simple mission: provide high-quality HVAC service that customers can rely on year after year. Over the decades, we’ve grown alongside the communities we serve, adapting to new technologies while maintaining the values that built our name — integrity, professionalism, and care for our customers.


Today, we continue that tradition by combining modern heating and cooling solutions with the personalized service only a local, family-run business can provide.

Our Mission

Our Commitment to Quality

At Greenwood Heating & Air Inc, quality isn’t optional — it’s standard. We use trusted equipment from leading manufacturers, stay current with HVAC advancements, and back our work with strong warranties and responsive customer support. Whether it’s a small repair or a full system installation, we treat every job with the same level of care and attention.

Why Homeowners Choose Greenwood Heating & Air

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Decades of Proven Experience

With over six decades in the HVAC industry, our technicians bring unmatched knowledge to every job — from diagnosing complex system issues to recommending energy-efficient upgrades.

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Honest, Skilled Technicians

We believe in transparent service. Our team explains your options clearly, never pressures you into unnecessary repairs, and focuses on solutions that make sense for your home and budget.

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Local & Customer-Focused

As a locally owned company, we take pride in serving our neighbors. We show up on time, respect your home, and stand behind our work with dependable warranties.

Frequently Asked Questions

  • How long has Greenwood Heating & Air Inc been in business?

    Greenwood Heating & Air Inc has proudly served Orange County and Los Angeles County for over 65 years. We are a family-owned and operated company built on long-term customer relationships and quality workmanship.

  • Are you licensed and insured?

    Yes. We are fully licensed and insured for your protection.

    California Contractor License #: 945655

  • Are your technicians licensed and insured?

    Absolutely. All Advent Air Conditioning technicians are fully licensed, trained, and insured. Our Texas HVAC license number is TACLA001216C.

  • What areas do you service?

    We provide HVAC services throughout Cypress, Orange County, and surrounding Los Angeles County communities.

  • Do you offer free estimates?

    Yes. We offer free estimates on HVAC system replacements and new installations. Repairs and maintenance are priced transparently after inspection.

  • How do I schedule HVAC service?

    You can schedule service by calling our office or requesting an appointment through our website. Our team will help you find a convenient time as quickly as possible.

  • Do you offer emergency HVAC services?

    Yes. We provide prompt service for urgent heating and air conditioning issues to restore comfort as quickly as possible.

  • How do I know if my AC system needs repair or replacement?

    If your system is over 10–15 years old, frequently breaks down, or struggles to cool your home efficiently, it may be time to consider replacement. Our technicians will evaluate your system and provide honest recommendations based on condition, efficiency, and cost-effectiveness.

  • Why is my air conditioner blowing warm air?

    Warm air can be caused by low refrigerant, dirty coils, airflow restrictions, or thermostat issues. A professional inspection allows us to identify the exact problem and restore proper cooling.

  • How often should my heating system be serviced?

    We recommend professional heating system maintenance once per year, ideally before the colder months, to ensure safe operation and efficient performance.

  • What are signs my heater needs service?

    Common signs include unusual noises, uneven heating, rising energy bills, short cycling, or difficulty maintaining temperature.

  • Why is HVAC maintenance important?

    Regular maintenance improves energy efficiency, reduces the risk of breakdowns, extends equipment lifespan, and helps maintain consistent indoor comfort year-round.

Trusted Partners in Power

Our work with top brands and local pros proves our commitment to quality you can rely on.