Thermostat Installation Companies in Fullerton, CA

"I recently had the pleasure of working with SoCal Boys Heating and Air Conditioning, and I couldn't be more impressed! From the moment I called for an appointment, their customer service was exceptional. The staff was friendly, knowledgeable, and eager to assist. The technician (Gerry) arrived on time, equipped with everything needed for the job. He took the time to explain the issues with my HVAC system and provided clear options for repairs and maintenance. I appreciated his honesty and transparency—there was no upselling or unnecessary pressure, just genuine advice tailored to my needs. The repair process was quick and efficient, and I was pleasantly surprised by how reasonable the pricing was. My system is now running better than ever, and I can already feel the difference in my home’s comfort level. What stood out most was their commitment to customer satisfaction. They followed up a few days later to ensure everything was working well and that I was happy with their service."

"They were on time, did a complete annual checkup, and completed a recommended service to extend the life of my air conditioner compressor at a fair price. They will be servicing my units again next year."

"Chris, the owner explained each option to us thoroughly. He and his team provides excellent work, contacted and arrived per commitment, left everything cleaner then when started. Proactively provided an inspection after the install. Showed us how to operate and provide general maintenance. If weâ  d like, such as changing out a filter however he Is also available and has scheduled tuneups. Overall a great experience as Chris is very accommodating and conscientious."

"Prompt response and repair."

"Most affordable of all the companies we bid.. Communicative, quick, professional"

"Titan Mechanical Services gave me a very straightforward assessment of my heating and air problem. They gave me an estimate with no pressure and no up selling. As a woman with a disabled husband it was so nice to deal with an honest company, not let s see how much we can get out of these people sales tactics. I will recommend Titan Mechanical Services to my family and friends. Thank you technicians Jeremy and Lalo for your professionalism and excellent work!"

"I had Mammoth Air install a 3 zone mini-split and they were by FAR the best price. They were very responsive and spent the time to accommodate my HOA’s requirements. Their customer service was excellent and they were very personable and did an excellent job!"

"Customer service and the service tech were awesome"

"Chris (owner) was great. He responded quickly to my inquiry for removing my under mount sink to install a new drop in sink and faucet and gave a free estimate. He was Punctual, knowledgeable, kind, answered all my questions and told me what supplies were needed. His employee Clayton completed the project and took the additional time to make adjustments to our countertop to ensure the sink fit properly and made sure everything was working correctly. He also cleaned up after completing the job. I am extremely satisfied with the workmanship and courteous manner of Authority Plumbing. Would definitely recommend."