Creat a project with Arduino and GSM module

Hi, friends. I need help with the implementation of the project "protection from water leakage in the apartment." I wanted to implement the project using Arduino and GSM module. Who can help for a fee?

So, you are going to put the Arduino where the water can leak. When it shorts out, there IS a leak. Then, what? Send smoke signals?

Has the choice of GSM module and water detector already been made or does this assignment leave you free to choose these ?
Which arduino are you planning to use ?
Post links to all the bits you are intending to use.