Top 10 HVAC Companies in Santa Ana
When you need reliable heating, air conditioning, and HVAC services in Santa Ana, experience matters. Below is Dial One Sonshine’s curated list of the Top 10 HVAC Companies in Orange County, evaluated based on industry reputation, services, hours, and genuine customer reviews.
1. Dial One Sonshine
Years in Service: Family-owned since 1981 (over 40 years)
Services: Dial One Sonshine offers heating and air conditioning installation, repair, maintenance; plus plumbing, electrical, water heaters, indoor air quality, and drain/sewer work.
Service Area: All of Orange County, California, including cities and municipalities such as: Santa Ana, Stanton, Cerritos, Anaheim, Garden Grove, Los Alamitos, Brea, Costa Mesa, Buena Park, and more!
Hours: Open 24 hours
Reviews: Google reviewers said things like, “The technician Jose … did a comprehensive check of the heat pump system functions and performance…” Mario V. gave the company 4.9 out of 5 stars with 2,310 reviews.
2. Airwest Air Conditioning and Heating
Services: Airwest Air Conditioning and Heating offers several HVAC services, including air conditioning and heating repair, replacement, and more.
Service Area: Santa Ana and the surrounding Orange County area
Hours: M-F 7:00 am to 5:00 pm
Reviews: Google reviewers said things like “Scott was out of the Box exceptional. From start to finish. He even helped me a seventy one year old lady get my grandson in my car.cant count the stars. […]” and gave the company 4.6 stars with 25 total reviews.
3. Scott Harrison Plumbing and Heating
Services: Scott Harrison Plumbing and Heating offers services such as: residential HVAC, heating system repairs, AC installation, and maintenance plans.
Service Areas: Stanton and surrounding OC communities.
Hours: 24/7
Reviews: Reviewers on Google say, “Our home had a wholesome experience with Scott Harrison Plumbing getting our 20+ years old water heater replaced. […]” and they score a 4.7 out of 5 stars with 181 reviews.
4. Avis Home Solutions
Services: Avis Home Solutions offers HVAC services, air conditioning repair, heater replacement, and routine maintenance.
Service Areas: Anaheim, Anaheim Hills, Fullerton, Garden Grove, Irvine, Laguna Hills, Lake Forest, Mission Viejo, Orange, Tustin, Yorba Linda, and the surrounding areas of Orange County.
Hours: M-F 7:00 am – 5:00 pm, Saturday 8:00 am – 5:00 pm, closed on Sundays.
Review Score: Reviewers on Google say things like “From the moment I called Avis Home Solutions, I knew I was in good hands. Their customer service is top-notch, and they truly go above and beyond to make sure you’re happy with their work. […]” and give the company 4.6 our 5 stars with a total of 428 reviews.
5. Andrus Plumbing & Heating Inc
Services: Andrus Plumbing & Heating Inc offers HVAC services, new installs, and emergency call-outs.
Service Areas: Laguna Beach and the surrounding areas of Orange County.
Hours: 24/7
Review Score: Reviewers on Google say, “They came out of Sunday and saved us. We needed a new tank and condenser. We were very pleased and a fair price. We will call them if we ever need help again.” and give the company a 4.6 out of 5 stars with 11 reviews.
6. Santa Ana ComforTech
Services: Santa Ana ComforTech offers a wide variety of HVAC services, including AC repair, replacement, maintenance, and more!
Service Area: Santa Ana and the surrounding Orange County area
Hours: 7 days a week, 8:00 am to 5:00 pm
Reviews: Google reviewers said things like “The technician showed great skill and patience while fixing my AC and furnace. The repair was done with care and the cost was very affordable. It was a satisfying experience. We’ll call them again and recommend them.” and gave them 4.9 stars with a total of 76 reviews.
7. Heating & Air Conditioning Santa Ana
Services: Heating & Air Conditioning Santa Ana offers a variety of heating and A/C services, including repair, replacement, and more.
Service Area: Santa Ana and the surrounding Orange County area
Hours: M-F from 8:00 am to 8:00 pm, and Sat-Sun from 9:00 am to 5:00 pm
Review Score: Google reviewers say things like “Called Heating and Air Conditioning after a friend’s recommendation. Very pleased with the service. […]” and give the company 5 stars with 35 total reviews.
8. Santa Ana Air Conditioning Contractors
Services: Santa Ana Air Conditioning Contractors offer a wide variety of HVAC contracting services, including things like installation, repair, maintenance and more.
Service Area: Santa Ana and the greater Orange County area
Hours: 24/7
Reviews: Google reviewers said things like “Our furnace was not working, and they came that same day to fix it. Quick, effective, and fairly priced service.” and gave the company 5 stars with 8 total reviews.
9. Evergreen Air Conditioning Repair Service, Santa Ana
Services: Evergreen Air Conditioning Repair Service, Santa Ana offers a wide variety of professional HVAC services like AC repair, furnace replacement, and everything in between!
Service Area: Santa Ana and the surrounding Orange County area
Hours: 24/7
Review Score: Google reviewers said things like “My experience with them was fantastic. Not only did they fix the cooling system but they also educated me on how to maintain it. The technician was respectful and worked without making a mess. It is rare to find such thorough and genuine service.” and gave the company 5 stars with 16 total reviews.
10. Summit HVAC Services
Services: Summit HVAC Services offers professional and reliable HVAC system services such as AC repair and furnace replacement.
Service Area: Santa Ana
Hours: 24/7
Review Score: Google reviewers said things like “” and gave the company 4.6 stars with a total of 15 reviews.
Summary & Recommendations
Dial One proudly joins this elite list, bringing trusted and timely heating and air conditioning expertise to OC homeowners and businesses. Each provider shines in quality, responsiveness, and local insight—so you can compare and choose the right fit for your plumbing needs.