Orange, CA business & property owners in need of HVAC or refrigeration design, installation, maintenance, monitoring, repair or retrofits have called RESSAC first for the past 90 years. That’s because we are a third-generation, family owned company that prides itself in exceptional customer support, timely response and quality service. Don’t take our word for it, read our reviews below to learn more.

Local Reviews
for Orange, CA

RESSAC Climate Control Rated 5.0 out of 5 stars based on 2 customer reviews

Above and Beyond




Review of RESSAC Climate Control

Excellent service, comprehensive discussion and great pictures were shared in the discovery of our HVAC issue. Doug is fantastic: polite, professional, educated. Great job guys!!


Response from RESSAC Climate Control:

Thank you so much for the wonderful feedback, Aaron! We will pass your review straight back to Doug and his managers.


Facilities Manager




Review of RESSAC Climate Control

Awesome experience


Response from RESSAC Climate Control:

Thanks for the 5 stars Tony!


Doug W.

Doug W.

Our commercial customer in Orange CA reported several air conditioners leaking water. Dispatched our local technician to investigate. Examined the equipment and found all systems draining normally, pans dry and no current leaks. The tech did find water puddles on the roof, possible from trapped condensation on actual roof. The tech cleared all drain lines, traps and pans just in-case, all lines were already clear. Will monitor situation, spoke to manager to confirm.

Near E Village Way, Orange, CA 92865
Orange, CA - Our commercial customer in Orange CA reported several air conditioners leaking water. Dispatched our local technician to investigate. Examined the equipment and found all systems draining normally, pans dry and no current leaks. The tech did find water puddles on the roof, possible from trapped condensation on actual roof. The tech cleared all drain lines, traps and pans just in-case, all lines were already clear. Will monitor situation, spoke to manager to confirm.
Jesus G.

Jesus G.

Dispatched our Orange County California HVACR crew to install a new ice machine for a restaurant customer. Completed disconnection, refrigerant recovery, water line removal and disposal. Hooked up and started new machine, confirmed operations.

Near The City Way E, Orange, CA 92868
Doug W.

Doug W.

A makeup store in Orange CA reported a potential OSHA concern with humidity and temperatures in their backroom. Our HVAC technician arrived and investigated. He recorded all temperatures throughout the space. Main area recorded at 68 degrees, while the backroom was at 72 degrees. No major humidity or temperature readings. Spoke to MOD who stated the day before the backroom felt very warm. Spoke EMS who checked historical temp readings, found no issues or spikes. Will recommend to corporate to lower backroom settings slightly for sensitive employees' comfort.

Near E Village Way, Orange, CA 92865
Orange, CA - A makeup store in Orange CA reported a potential OSHA concern with humidity and temperatures in their backroom. Our HVAC technician arrived and investigated. He recorded all temperatures throughout the space. Main area recorded at 68 degrees, while the backroom was at 72 degrees. No major humidity or temperature readings. Spoke to MOD who stated the day before the backroom felt very warm. Spoke EMS who checked historical temp readings, found no issues or spikes. Will recommend to corporate to lower backroom settings slightly for sensitive employees' comfort.
Sean M.

Sean M.

Site survey

Near City Blvd E, Orange, CA 92868
Sean M.

Sean M.

Preformed preventative maintenance. Changed air filters, flushed drain lines, and washed condenser coils. Units are running ok, no deficiencies found.

Near City Blvd W, Orange, CA 92868