Removing a toilet and replacing the seal typically shouldn't cause damage to a bathroom floor if done properly. However, there are some considerations to keep in mind to minimize the risk of damage:
Proper technique: Removing a toilet requires care and precision to avoid undue stress on the floor. The toilet should be unbolted carefully, and any residual water in the bowl and tank should be drained before lifting it off the floor.
Inspect the floor: Before removing the toilet, inspect the bathroom floor for any signs of water damage, rot, or deterioration. If you notice any issues, it's essential to address them before proceeding with the toilet removal.
Protect the floor: Lay down protective materials such as drop cloths or cardboard to prevent accidental scratches or damage to the floor during the removal process.
Check the wax seal: When replacing the toilet, make sure to inspect and replace the wax seal or gasket. This is crucial for preventing leaks and water damage around the base of the toilet.
Consider professional help: If you are unsure about the process or if you have an older bathroom floor, it may be best to seek the assistance of a professional plumber. They can handle the removal and replacement of the toilet while minimizing the risk of damage.
As for removing the old floor before the job is done, it depends on the condition of the existing floor and your plans for the bathroom renovation. If the current floor is damaged, outdated, or doesn't match your desired aesthetic, it might be a good idea to remove it before installing a new one. Removing the old floor allows for a fresh start and ensures that any potential issues with the subfloor can be addressed properly.
However, if the existing floor is in good condition and you don't have any specific plans to replace it, there's usually no need to remove it just for a toilet seal replacement.
In summary, while removing a toilet and replacing the seal generally shouldn't cause damage to a bathroom floor, it's essential to take precautions, inspect the floor for any issues, and consider professional help if needed. If you plan to renovate the bathroom and want a new floor, removing the old floor before the job is done is a viable option to ensure a clean and seamless installation of the new flooring.