Rainier Professionals DBA Rainier Fire Protection. We are a Fire Sprinkler Company in the state of Washington. NFPA 13, 13D, 13R, 25 and more, are our specialty. RFP is a company you would want to work with when it comes to Fire Sprinklers. Our techs are knowledgeable, clean, and most importantly they are respectful. Creating a first class experience for our customers, to make sure they are well informed and understand what is going on when ever our techs are in the field. Rainier Fire Protection is who you need when you need Fire Sprinklers.