Welcome Newmarket Pre-cast Concrete Products

Newmarket Pre-Cast has been in business serving southern Ontario since 1970. We specialize in septic tanks, holding tanks, oil & grease interceptors, syphon/pumping chambers, storage sheds and retaining walls. The business was originally started in Newmarket, Ontario by Roy Weddel, Brian’s father, by installing septic tanks for customers, and by providing exceptional customer service. In those, days it was the supplier who told the customer when and if they could deliver and install their septic tanks, Roy decided to change this way of business and Brian still holds that standard today.


  • Model 27000 Low Holding 2 Piece Unit
  • Model 13500 Holding 2 Piece Unit
  • 410 Pumping Chamber
  • Model 13500 Septic 2 Piece Unit
  • Model 5900 Septic 1 Piece Unit
  • 2250L Drainage Tank
  • Model Low 3600 Holding 1 Piece Unit
  • Garage Catch Basin
  • Steps
  • Model 3600 Holding 1 Piece Unit