The installation of bathroom grab bars is not difficult once an installer has acquired experience. With the proper tools, experience, and good decision-making skills, the installation of grab bars can be quite easy in most cases. Without these elements, one can be in for a lot more than they expected. 

It is the experience that one acquires while working with different types of materials, tools, and fasteners that makes all the difference. It is exposure to many different scenarios that prepares the installer for many of the little surprises that may await.

Some materials are straightforward to drill, while others, such as porcelain or granite, can be challenging. Some materials are more delicate than others and require more delicate handling. 

Certain types of anchoring methods work best in specific situations. Once again, experience and common sense is the key.

Some installations can be quick and easy; others can be quite tedious and time-consuming. How long it takes to complete the installation of grab bars is directly related to practice and know-how.

It is the experience that guides the installer, and with experience, it is easy.