If you want a quality job done, steer clear of this outfit. We built a new home in Annapolis, and this was by far the worst sub-contractor. Huge gaps between the ceiling, and the bottom of the concealed sprinkler head. They claimed the manufacturer provided for a 1/8" gap. None of ours are even close to that. Also, cockeyed, bent heads, etc. etc. When we complained, they sent some one out to make adjustments. This only provided for more bent sprinkler heads, grease markings on the ceiling, cut drywall, and chipped paint. We go in new homes in our neighborhood, and see properly installed sprinkler heads that look great. Definitely, a poor choice by our general contractor that we will have to look at over and over. read more