Never hire an unlicensed AC technician
When hiring an AC technician or any contractor for that purpose ask the company that you will hire and that's coming to your home if they are licensed, bonded, and insured, and what their license number is.
Make sure to protect your home and your family, it is your biggest and most valuable asset.
When you hire a licensed, bonded and insured AC contractor, you can rest assure that if any situations should arise while the technician is doing any repair, large or small, from a failing air conditioner, you, the home owner is protected against any equipment failure, fire, water or gas leak, or just from any other situation that could arise while the work is being performed in your home.
If the company cannot provide you with a certificate of insurance and a license number "DO NOT HIRE THEM". It could be the most expensive and dangerous lesson you could ever take.
You will protect your home and your families’ best interest when hiring only licensed and insured companies and/or technicians!