SLEMCO Online Bill payment Customers of SLEMCO can pay there bills by logging in the official website http://www.slemco.com/ (given below) and visit Pay Bills Section to make the payments. In case of any issue or support one can contact SLEMCO support (337)-896-5384 using the details given below. SLEMCO Login To login in one should visit the bill payment website http://www.slemco.com/ … Continue reading SLEMCO Bill Pay, Online Login, Customer Support Information