Home Improvement

It's a long story, but I need the aluminum trim replaced around a garage door. Just basic white aluminum trim.

I don't want to do it myself...but I have no idea what kind of contractor I even need to call to do it. What kind of contractor would I call to do this? I'm in Maryland, US.

Google searches either lead me to garage door replacement or siding replacement, neither of which is what I'm actually looking for.

Is there a site where I can post a picture of the project and dimensions and get contractors to bid on it, or at least express interest on it? Angi (formerly Angie's List) seems to require me to figure out what kind of contractor I need, and this doesn't fall into the usual categories.

Thanks!