My best advice is this and personally how I view the subject. Certification doesn't necessarily mean you know what you're doing. I was both certified by Delta Kits as a Certified Windshield Repair Technician via their equipment which I have for sale, I was also certified by the National Windshield repair association or NWRA. unfortunately the NWRA Is supposed to be the voice and back bone for the industry or at least that's how it was back in the day. Now, more and more are seeking certs through the NGA.
Certs to me, showed my customers that I take pride in my work and my industry so that I would go the extra mile to be certified, not only by the industry but as well as the manufacturer of my equipment. I feel it does give you an advantage when dealing with competition and before to lo g, the networks are going to make it a demand to have or you will not be able to join the networks to file insurance.
Which in my opinion is a great idea, it will put a stop to the threat of "Fly-by-night" shops going crappy repairs.
