The cost to install a waterfall shower can vary depending on a number of factors, such as the type and size of the shower head, the materials used, and the labor costs in your area.
For a basic installation of a standard-sized waterfall shower head, with a simple design and made of standard materials, the cost can range from $300 to $800. However, if you opt for a larger, more complex design, made with premium materials such as stainless steel, or if you require additional plumbing or electrical work, the cost can easily exceed $1000 or more.
It's also worth noting that if you're remodeling your bathroom, and you're installing a waterfall shower as part of a larger project, the cost will likely be higher, as you'll also have to factor in the costs of other materials and labor.
It's always a good idea to get multiple quotes from different contractors to compare costs and ensure you're getting a fair price. It's also important to consider the quality of the materials and the experience and reputation of the contractor.
In summary, the cost to install a waterfall shower can vary greatly, but it typically ranges from $300 to $1000 or more, depending on the materials and design of the shower head, and the complexity of the installation.