HVAC reviews in Petaluma, California

Excellent service, my thermostat went out and Zach came and replaced it for me.

Super knowledgeable and friendly. Came on time and kept me posted on their timing. Was able to get our ancient floor furnace up and running in no time for a very reasonable price.

What an incredible booking and service experience with this company! From the minute I called to when Zach showed up at my door, I was beyond impressed. They were able to get me in within 1 business day and were on time, prompt with communication and really knowledgeable. I appreciate the honesty and transparency as well around what actually needs to be replaced if anything versus what still has shelf life left and how to care for our appliances. Zach was honest, helpful and such a gem to have over to help us make sure we’re taking care of our AC unit and furnace. Thank you Zach and team! 20/10 experience!!

Zach stopped by to check on my wine cooling system. He quickly identified the issues and had a creative suggestion for mitigation. Great service and I will definitely use them again!

Grupe was Amazing! They were so professional and went above and beyond to explain what was needed and why in such a practical manner. They were so knowledgeable, courteous and clean. I would highly recommend them to anyone who has HVAC needs!!!
James and Christian are a great team with such attention to detail and workmanship.

These guys are some of the best contractors I've ever worked with. They installed an AC system in my home about a decade ago, and we haven't had a single issue. They're always on time and fairly priced for annul services, and couldn't be friendlier. Thanks!

Great experience! 10 out of 10. I was informed when the technician would arrive, and he showed up right on time, even sending a notification when he was getting close. Technician Zach diagnosed the issue and got my system running quickly. He was helpful, informative, and professional, clearly explaining everything in terms I could understand with zero HVAC knowledge. His hard work and genuine care for the customer truly stood out. Highly recommend!!!

Diamond HVAC services are the absolute go to people for HVAC needs. Whether it’s a new project or service and repair. Luis and his team are knowledgeable and experienced with any old or new equipment.

Luis at Diamond HVAC Services Inc. is very knowledgeable and precise. He will work with you to tackle your HVAC needs. Definitely would recommend.

Excellent customer service! Friendly, responsive, and made the whole process easy and stress-free. Highly recommend!

THIS COMPANY BY Fr is the best!!,!

Kevin was very professional and knowledgeable. He fixed the heater in no time.

Luis and Diamond HVAC did a great job on cleaning up under the house, installing all new ducting as well as a new heating unit. Relocating the return to the closet was deftly planned and executed. Best of all was how accessible Luis was during the whole process.

Good company to do business with, quick response to fixing my AC unit. highly recommended company for a reasonable price.

Luis is highly knowledgeable and passionate about his craft. I highly recommend his services for your HVAC needs.

I had an amazing experience with Diamond HVAC Services the customer service was stellar and product exceeded my expectations (installed Mitsubishi Mini Split) I would highly recommend them to everyone looking for quality products and excellent service

Fast, friendly and reliable service! The tech showed up on time, fixed my AC in under an hour and the cost was very reasonable. I’ll definitely call Diamond HVAC Services again for any HVAC issues.

We had our vents cleaned by Diamond HVAC Services due to allergy issues, and the difference was immediate, the air feels much cleaner. Luis also repaired our heating system when our house wasn’t warming up properly. He quickly identified the issue and got everything working again. Professional, reliable, and high-quality work. Highly recommend!

Great

Furnace stopped at night. They arrived next morning. Faulty sensor replaced. Technician tested everything twice. Heating stable now.

Brian and his team installed a new duct system for our office, and the experience was fantastic. He was professional, organized, and very respectful of our schedule. Brian kept us updated during the entire process. The new ducts look clean and well-fitted. Air circulation has improved so much. His team left everything spotless afterward. We’re very happy with Brian’s work!