Delta Sierra Mechanical

The final inspection by the City of Stockton was today and the system that was installed by Delta Sierra Mechanical passed. There was never a doubt in my mind that it would not pass. The technicians took their time and installed the system properly and as neatly as possible. I am extremely happy with their work and attention to detail.

Henry was amazing. He handled everything professionally And didn’t stop until we got the results we needed. Thank you, Henry for your amazing work. You deserve a raise. Great serviceman quality work highly recommend him.

The service tech Henry, replaced my thermostat and reset the system so I could resume controlling my system via the app. He also suggested purchasing the HVAC twice yearly maintenance plan which was money well spent. This was my first time having my system serviced by Delta Sierra Mechanical, and I am EXTREMELY pleased and would HIGHLY recommend them. 1/26/26 I just found out I never posted the above comments regarding Henry. His work was performed in 2025. Today 1/26/26, I had to call Delta Sierra again for a different problem. Thank goodness Delta Sierra is an authorized company that AHS works with. My heater was not turning on and Delta Sierra sent out their tech Adrian. Adrian was FANTASTIC, and because of the POSITIVE, Professionslism from Adrian, I wasn’t surprised. Adrian found the

The crew was on time, professional, and they finished before dinner, which I was impressed, great service and a great deal, highly recommend the Delta Sierra crew 👍🏼

I had another great experience with Chris Buethe from Delta Sierra Mechanical! This is the second time Chris has serviced my HVAC system. Last year, he came out to replace a capacitor, and this year he provided excellent service again. Chris is always polite, friendly, and professional. He takes the time to explain what’s going on with my HVAC system and educates me about how everything works. I truly appreciate that he doesn’t just fix the issue, he provides solutions and makes sure I understand how to prevent future problems. It’s reassuring to work with someone so knowledgeable and trustworthy. I highly recommend Chris and Delta Sierra Mechanical for HVAC service!