Welcome to Blatter Construction and J&J Sprinklers! Blatter Construction specializes in serving the Rock Springs/Green River areas with the highest quality service and over 35 years experience in roofing, construction and sprinkler service. We are the experts for roof coatings, metal and shingles, membrane roofing, and sprinkler repair. We will work on residential or commercial projects - no job is too big! Call today for an estimate!