Air Conditioning Services in San Diego
AC installation, replacement, repair and maintenance for homes and businesses across San Diego County. We service all brands.
AC Install & ReplacementIf your AC is struggling to keep up or no longer working, Sterling Mechanical provides honest recommendations and professional installations done to…Learn more 
AC Repair & MaintenanceIf your AC is blowing hot air, making strange noises, or just not keeping up, Sterling Mechanical offers professional air conditioning repair and…Learn more 
Drain Line ServiceYour AC pulls moisture out of the air and sends it down a condensate drain line.Learn more Real reviews
What San Diego homeowners say
Quality workmanship, honest pricing, and reliable service. From first-time installs to full system replacements, our customers know they’re in good hands.
“Saw their van in the neighborhood and called them. They turned out to be very professional. Had them replace an older AC unit, on time for everything, did a great job. Easy to deal with. Price was reasonable. Would recommend.”
“Sterling installed central AC in my house. The install was done very quick and very clean. Jason is very friendly and gave us a great price for the job. Now I am enjoying ice cold clean air.”
“Jason and his team were great. Quick and efficient, kept the cost down as well. Highly recommended.”