It can cost anywhere from $300 to $1,000 to have a professional install a shower pan, depending on the complexity of the installation. Generally speaking, the more complex the installation (e.g., if there are challenges with leveling the floor or if significant plumbing work is needed), the more expensive it will be. If you're thinking about installing a shower pan yourself, it's important to be aware that this is a challenging task and it can be easy to make mistakes that could lead to water damage in your home. If you're not confident in your ability to do it properly, it's best to leave it to a professional.

It can cost anywhere from $500 to $2,000 to have a professional install a shower pan, depending on the complexity of the installation and the materials used. Typically, the more expensive option will involve higher-quality materials that are less likely to leak or corrode over time.