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."

"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!"

About us: "Welcome to Sean Patrick HVAC, Your Trusted HVAC Contractor Serving SOCAL, CA and Surrounding Areas. For over 10 years, we’ve provided exceptional HVAC repairs, HVAC replacement, air conditioning maintenance, furnace replacement, and indoor air quality services for residential and commercial customers. Our NATE-certified technicians have the experience and expertise to correctly diagnose and repair all makes and models of HVAC systems. We offer 24/7 emergency HVAC repair service, so you’re never left in the cold or heat. As your local HVAC contractor, we provide: HVAC Repairs – Get your AC, furnace, or heat pump running again quickly with our skilled repair technicians HVAC Replacement – We replace old, inefficient HVAC systems with new top brand models properly sized for your home/business Air Conditioning Maintenance – Preventative maintenance maximizes the lifespan of your AC system Furnace Replacement – We replace broken furnaces with energy efficient new models"

"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"

"They are excellent and do great work .Very cordial and respectful. I would highly recommend them."