Contact Us Contact Us for an EstimateRequest A Quote Today...Reach UsLocation :9313 School Road 7 Harriston ON N0G 1Z0Email :Email RyanPhone :+1-519-803-1157 Your Name* Your Email* Contact No* Purpose Of Contact* Message* Please leave this field empty. OnGrade is your Harriston area go-to specialist for septic systems and small to mid-sized excavating projects.Useful Links Home Services Contact