Undertaking a project to replace the shower base while retaining the existing tile can be challenging, especially for amateur DIY enthusiasts. It requires precise measurements, careful handling of plumbing connections, and expert-level knowledge of waterproofing. Hiring a professional is often recommended to ensure that the project is executed properly, minimizing the risk of mistakes that can lead to expensive repairs down the line. A professional will have the necessary expertise, tools, and experience to handle the complexities involved in this type of project.It is possible to replace the shower base without removing the existing tile, but it requires careful planning and consideration of various factors. Assessing compatibility, access, plumbing connections, and waterproofing are crucial steps in determining the feasibility of such a project. Hiring a professional is highly recommended to ensure a successful and durable outcome. Remember, it’s always wise to consult with an expert before embarking on any major bathroom renovation project to avoid any potential issues and to achieve the desired results.