Costa Mesa’s Commercial Refrigeration & AC Experts

Costa Mesa, CA business & property owners in need of HVAC, control system or refrigeration repair, design, installation, maintenance, monitoring, 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 Costa Mesa, CA

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

Great service




Review of RESSAC Climate Control

Great job!!


great job




Review of RESSAC Climate Control

the gentleman that was here was very professional and did a great job!


Doug W.

Doug W.

Near Harbor Blvd, Costa Mesa, CA 92626
Doug W.

Doug W.

A business in Costa Mesa California requested a tech to look at their mini-split AC for the manager's office. Upon arrival, our technician found the blower operating but very clogged, inside of system is very dirty. Unit has leaked in the past, clogging issues may be the cause. Will quote to take system apart and provide a full cleaning.

Near Bristol St, Costa Mesa, CA 92626
Costa Mesa, CA - A business in Costa Mesa California requested a tech to look at their mini-split AC for the manager's office. Upon arrival, our technician found the blower operating but very clogged, inside of system is very dirty. Unit has leaked in the past, clogging issues may be the cause. Will quote to take system apart and provide a full cleaning.
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Summer HVAC maintenance scheduled for a commercial customer in Costa Mesa California. All filters changed, units inspected and no deficiencies found. PM complete.

Near Harbor Blvd, Costa Mesa, CA 92626
Costa Mesa, CA - Summer HVAC maintenance scheduled for a commercial customer in Costa Mesa California. All filters changed, units inspected and no deficiencies found. PM complete.
Doug W.

Doug W.

A high-fashion retailer in Costa Mesa California was scheduled for their summer HVAC maintenance. Completed full inspection of the VAVs per customer scope, including changing the filters in all units. No issues to report, mall supplies air and VAVs are functioning as expected.

Near Bristol St, Costa Mesa, CA 92626
Costa Mesa, CA - A high-fashion retailer in Costa Mesa California was scheduled for their summer HVAC maintenance. Completed full inspection of the VAVs per customer scope, including changing the filters in all units. No issues to report, mall supplies air and VAVs are functioning as expected.
Joshua C.

Joshua C.

Corporate office headquarters for a shoe company in Costa Mesa was scheduled for a HVAC survey to discuss a closed return system. Met with the customer, surveying the room and checking for outside air infiltration (none found). Did find plugged filter medium that he was able to replace. System otherwise OK, recommended no major changes to current design as that would increase the static pressure. Found minor issue with secondary drain pain, will quote to correct flow separate from this survey.

Near S Coast Dr, Costa Mesa, CA 92626
Costa Mesa, CA - Corporate office headquarters for a shoe company in Costa Mesa was scheduled for a HVAC survey to discuss a closed return system. Met with the customer, surveying the room and checking for outside air infiltration (none found). Did find plugged filter medium that he was able to replace. System otherwise OK, recommended no major changes to current design as that would increase the static pressure. Found minor issue with secondary drain pain, will quote to correct flow separate from this survey.
Javier G.

Javier G.

April HVAC maintenance scheduled for a chiropractic office in Costa Mesa, CA. The technician changed filters, confirmed belts were in good condition, and tested amps and pressures. No problems found for the air conditioners.

Near Harbor Blvd, Costa Mesa, CA 92626
Costa Mesa, CA - April HVAC maintenance scheduled for a chiropractic office in Costa Mesa, CA. The technician changed filters, confirmed belts were in good condition, and tested amps and pressures. No problems found for the air conditioners.