Whether you can install a shower enclosure yourself or need professional help depends on several factors, including your level of DIY experience, the complexity of the installation, and your comfort with handling tasks involving plumbing, carpentry, and construction.

1. Skill Level: Installing a shower enclosure involves skills in measuring, drilling, handling tools, and potentially working with plumbing. If you have experience with similar DIY projects and feel confident in your abilities, you might be able to handle the installation yourself.

2. Instructions and Manuals: Most shower enclosure kits come with installation instructions. Carefully review the instructions to assess if you understand the steps involved. If the instructions seem overly complex or unclear, it might be a sign that professional help is a better option.

3. Tools and Equipment: Installing a shower enclosure requires specific tools, such as a drill, level, screwdrivers, and more. Make sure you have the necessary tools and are familiar with how to use them safely and effectively.

4. Plumbing Knowledge: If your installation involves plumbing adjustments or modifications, you should have a good understanding of plumbing principles and local building codes. If you're not comfortable with plumbing tasks, it's best to seek professional assistance to avoid leaks or other issues.

5. Structural Considerations: Depending on the type of shower enclosure, it might need to be anchored securely to the wall. If you're uncertain about the structural integrity of your walls or how to properly anchor the enclosure, professional help is recommended.

6. Time and Patience: DIY installations can take longer than expected, especially if you're not familiar with the process. Consider whether you have the time and patience to complete the installation without rushing.

7. Risk of Mistakes: Incorrect installation can lead to water leaks, improper drainage, and even damage to the enclosure or the surrounding area. If you're concerned about making mistakes, it's wise to hire a professional to ensure a proper installation.

8. Warranty and Support: Some shower enclosure manufacturers require professional installation to maintain the warranty. Check the warranty terms before deciding to install the enclosure yourself.

9. Safety: Working with glass panels and tools can pose safety risks. If you're not experienced with such tasks, professional installers are equipped to handle these materials safely.

10. Complex Configurations: If your installation involves a complex configuration, custom adjustments, or unique structural challenges, it's generally safer to hire a professional who has experience with such installations.