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 50,000 Holding 2 Piece Unit
  • Model 2700 Septic 1 Piece Unit
  • Model 45400 Septic 2 Piece Unit
  • 2250 Pump Chamber
  • 675 Pumping Chamber
  • Model 27500 Fire/Water Storage Tank
  • Steps
  • Model 6800 Holding 1 Piece Unit
  • Model 68200 septic tank 3-piece
  • 2250L Drainage Tank