If I am still with the company after being taken over by new employer. Is non compete still valid?

The company i work for is a hose cleaning company. That hires self-employed people. And they take a % out for themselves. Well when i started with this company. It was giving to a relative and then after 4 years taken back. I have lost customers due to the orginial owner taken back the company. I do house cleaning on the side for myself. If I advertise. And my old customers seek me out or any of this companies old customers seek me out is the non compete still valid? I have had alot of my customers say that they were leaving the company cause they were not getting confirmed phone calls for their appts. And most didn't know that i was coming to clean their houses. And dropped the services with this company. Can I still take them even though i am part time with this company. or not