Routinely... Sub-contracted out, second rate, poor quality ac; craftsmanship, installations, and maintenance follow-ups usually performed by minimally qualified and trained ac laymen that are usually friends and business cronies with the owner that are actually working under the co-company owner's State air conditioning contractor's licensing, while they themselves are not actually certified ac service professional technicians... Hence, the real co-company owner who is an actual trade school trained, qualified ac mechanic, and State licensed ac contractor is not the real, qualified, & skilled technician, who should come out to do all the jobs they are personally hired for, but instead he sends in his place some barely; qualified, minimally skilled, or non-State certified-licensed crony to do all the "piss-poor", substandard ac work on the job vs all the professionally performed ac; installs, repairs, and the ac unit servicing you're truly expecting to receive in light of all the rather premium ac service prices and fees you will pay for this companies supposed top-notch ac work!...