Need a script for making grooves in walls...

hi friends, i am new to scriptspot and this is my first post also.
first of all i would like to introduce myself. My name is Shahzad, from Pakistan and i am doing job as 3d artist that includes in-organic modeling, texture and rendering especially architectural and for that you know some time you need to make grooves in walls or any mesh, this part is not hard but it is time wasting and boring thing because i have to Boolean. so i am requesting a script that can make grooves in the walls with its custom settings including units. like if we want to make groove from one end to another its window show us all the options or anything of how much do we want to go deeper? and do we like to make grooves like rectangular or circular.

you know what i mean. see the image below for understanding
http://www.hoshenlee.com/images/groove_joint_wall_2.jpg

if you guys succeed than please make it to endless point able grooves you know. from one point to endless points (vertices/edges) of the wall.