My name is Theresa and I am with Global Sign. I can answer your questions.
No, we don't replace sign faces.
No, we don't use a buffer.
No, we don't use ,'as seen on tv' headlight restoration kits. (I wouldn't recommend it either, this is a great way to piss off your customers!)
Sign restoration is ALL we do. We are not trying to 'trick' customers into maintenance - we don't do maintenance.
We have been successfully restoring signage for 20 years. There are a lot of ways to mimic our services, however the majority of these copy cats fail miserably in a matter of a few months. Notice that one of the largest sign manufacturer/mqintenance companies in the US tried for a while and closed up shop? They are no longer offering the service. Because they can't.
If you have more questions, you can call our offices and ask directly.
Www.globalsignrestoration.com