Know-How Exchange : Taglines/Names

I own my own signage company (banners, trade show graphics, window signage, etc).
My problem is a tagline. My clients have told me they think of my company as a step above places like Fastsigns, Sign-A-Rama, etc.
They tell us we are dependable, we make them look good, we always come through.

What I need is a tagline that differentiates us from a standard sign shop but tells people what we do. Our name doesn't really do it.

Any help would be appreciated. I have been rattling my brain on this for over a month.