How much does the Safeway Step® cost? Posted by: admin Each installation is different, and the cost depends on the type of existing bathtub you have, and other factors that impact the amount of labor required. Please contact us at 808-554-1570 for a free in-home consultation and estimate. Share 26 JAN 0 About the Author: Oahu Tub Experts aims to provide you with helpful home remodeling tips. We really like to focus on what we call "Value Added Remodeling". In other words, Remodeling -- or as we sometimes refer to as "Rejuvenation" -- that actually increases the value of your home measurably by more than you actually spent.