Walk in bathtubs vary greatly in cost based on the features you select. Ella tubs are, in our honest opinion, the very best in the industry and are packed with standard features. To give you an example, our most popular model's current cost is $7000, and this includes delivery. The average installation cost by a plumber is $2500. After receiving one of our tub installations, our clients often tell us that they wish they had done this years ago, as these tubs provide a cleanliness and comfort that is second to none.