We are a family owned and operated provider of heating, air conditioning, and ventilation services for the Inland Empire, Los Angeles, and Orange County regions. We offer fast and effective same-day AC repair. Based in Rancho Cucamonga, we understand how quickly a broken air condition can ruin your day. We fix air conditioning and heating problems right away! We sincerely value our customers’ indoor comfort and health, whether it  be in a residential or commercial setting.

Get a free quote today! Give us a call at (909)919-6121.


For a fast free quote, just fill out this form below. We will respond to you within a 24 hours.


    Contact us for immediate maintenance and installation services. Or book an appointment. We cover Inland Empire, Los Angeles, and Orange County.


    We provide HVAC financing options with approved credit for residential customers. For major repairs or new product sales and installation.




    Mike W. Says…

    “Had a duct problem, Gave bayside a call, He came out right away and checked the problem, fixed that and cleaned the coil on the inside unit, works great now! Very professional and nice guy, would recommend him to anyone. Also the price for services rendered were very reasonable. Thanks for the great job.”

    lk11765 Says…

    “My father’s air conditioner was not working so great the other day so I called a few places to see who could offer the best rate. I came across Bayside heating & air and Sam said he could come out that day for a free consultation! He arrived when he said he would and checked everything out–apparently there was a leak in the old AC system and adding any sort of chemical would not actually fix it (it would just leak again).

    He offered to replace the system and would give us a discount seeing as my father is a senior citizen. I called a few places to check prices before accepting, but could not beat his deal! He installed it the next day and things are working great, thank you Sam!!”

    Greg S. Says…

    “My ventilation system wasn’t working properly because heat wan’t being released to all the bedrooms in my house. I called up Bayside heating & air and my problem was fixed within two hours of the technician’s arrival. Thanks!”

    Suzan C. Says…

    “Their customer service is excellent, I was called back very fast.They showed up on time. I had quite a few estimates and their price was the lowest. I am very happy with my system now. I recommend Bayside to everyone!”

    Mirvat Y. Says…

    “Two days ago I called Bayside–they set an appointment between 1 and 3pm. The technician came on time and he looked very professional. I had three estimates on fixing my condenser. Bayside gave us the lowest rate and performed an excellent job”