Never let a job payment turn into an unpaid invoice collect the payment on the spot cash cleared approved check or credit card with an approval you are an electrical contractor not a bank
Every service or installation company that comes to my house wants payment up front some even ask for payment before they make the service call
Some electricians are afraid to ask for payment, they may be better off as an employee
Another mistake is working T&M on residential jobs
No customer wants to.have someone doing work for an unknown price
T&M will always create problems when it comes time for payment
Learn how to price all work up front