WalkIn Bath Price Promise One Price Includes Everything. You deserve to know the cost of a walkin tub with complete certainty. With Kohler, you won’t have any surprise fees or hidden costs..For most seniors, converting their bathtub to safe accessible step in shower can be very fast affordable. By cutting removing the front wall section from an existing tub capping it with a step insert, our tub cut process avoids the inconvenience, mess cost of a bathroom re .Walk In Tub Installation. For people with limited mobility or anyone who finds it difficult to access their bathing area, today’s walk in tub installation service has come a long way from tubs of the past..Are you considering a walk in bathtub but concerned about the cost? Check out our walk in tub price guide here!.