Is $1,200 to hydrojetting an internal perimeter drain a fair price?

My house apparently has an internal perimeter drain. I haven’t had any water problems or issues with musty smells since I bought it three years ago, but I am not confident this system actually works. The pipes around the foundation appear to be connected to an external popup; however, no matter how heavy the storm, I have never seen water in the popup. I don’t have a full-length camera, but I’ve taken a small peek inside with a super cheap camera and can see there are no roots or anything a few feet past the corner, so I would expect if I leave my hose on right next to the foundation, I should see some water on the popup. However, I never see this, which makes me think the system just doesn’t work at all. I’ve reached out to drainage contractors in the area as I want to get a bid on getting my downspouts redirected into the ground and away from the house to a dry well and in addition to that troubleshooting this system. The contractor that installed it for the last owners, other work is questionable, so I could totally believe they just installed it wrong. I'm worried I’m going to accept the hydrojetting bid, and it’s not going to even do anything or worse, causes damage due to an improper install.