One bay, one guy, and his name on the door.

Underline Undercoating LLC is a family owned and operated shop on Lapeer Rd in Port Huron. We do one thing: stop Michigan from taking your vehicle apart from underneath.

Rick does the work. Customers mention him by name in their reviews, say he explains the job before he starts, and many come back every year. One family has had four vehicles done.

An undercoat is only worth what it covers. That means getting inside the rocker panels, behind the taillights, into the bed panels and along the frame rails, where the salt sits. Plenty of shops spray what you can see from the floor. That's why the job here takes about an hour instead of twenty minutes.

We started in 2020, and we'd rather do fewer vehicles properly than rush through more. Everything is by appointment and quoted before it starts, and nothing gets sprayed that you haven't agreed to.