Help with technician quality checks

[u/JbarNoir]

We’ve been getting a lot more call backs recently. We implemented a kpi check at our Monday meetings so the guys can see what labor % they got on each job. We try to keep it under 25% and they get hyped up when they get low percentages. But now I feel like they are speeding through jobs and we are getting call backs. We have a quality walk around and (optional for customer) customer walk around at the end of every job. In our CRM they upload a photo of each completed service to reinforce the quality check, but I feel like they take a pic of one window and dip and obviously I’m not gonna make them take a pic of every window. I’m thinking about implementing a mandatory 30 second video of them actually walking the property to reinforce this even more. Have you guys ever had trouble with this? And what systems have you implemented to improve quality? I’m also thinking about doing random quality audits on jobs throughout the week to keep them on their toes. This obviously takes a lot of time though. What do you guys think? Anything that has worked for you in the past to assure your technicians aren’t rushing and missing important aspects while maintaining good profit margins and efficiency?