Advanced Climate Technologies

Advanced Climate Technologies has served Fullerton, CA since 2007, earning a flawless 5.0 rating across seven verified Google reviews. Owner Jonathan Payne manages each project personally, guiding homeowners through estimates and installations with transparency the company credits to its independent, owner-operated structure. Contact their office at (714) 738-0180 to schedule weekday service Monday through Friday, with Saturday availability from 9 AM to 2 PM.

What distinguishes this contractor is the combination of upfront pricing and follow-through that reviewers repeatedly highlight. Rather than steering clients toward unnecessary replacements, Payne presents honest options ranging from targeted repairs to full system upgrades. Multiple customers note that the crew cleaned up thoroughly after work, hauling away debris rather than leaving old equipment in residential bins, and one reviewer describes Payne calling that same evening to confirm the new cooling system performed as expected during a warm night.

Brandon Parker called ACT after months of tolering a failing water heater, and the team arrived promptly once the part arrived to complete a tankless conversion the same day. When Brittney Sylvester reported an AC unit that had not blown cold air in years, Payne diagnosed the fault accurately, applied a temporary fix to restore cooling immediately, and later managed a full replacement with coordinated delivery and installation. William Aggrey appreciated that Payne spent extra time explaining all available options before any work began, a detail several reviewers cite as evidence of the consultative approach that earns consistent five-star ratings.