The FLSA does not require extra pay for weekend or night work. However, the FLSA does require that covered, nonexempt workers be paid not less than time and one-half the employee's regular rate for time worked over 40 hours in a workweek.
As of 2014, carpet installers are usually tipped $10 to $15 per job when the job includes removing old carpeting, installation and cleanup. For installation only, carpet installers are usually tipped $5 to $10 each. Continue Reading.
I would test the concrete for moisture before installing carpet. A very simple test is: tape down a 2' square piece of poly to the concrete, seal all 4 edges with duct tape and leave the poly in place for 24 hrs.