TNS is a premier eaves trough company with repair , inspections maintenance and installation on new troughs in sarnia with over 20 years of experience. We are family owned and operated group of companies not limited to eaves but also fascia, soffit, siding, property management and my son has a professional roofing company. our goal is to save home owners money on maintenance and repair work essential to protecting their home from water damage or simply increasing the value of there investment.