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, started in the business 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.


  • Model 4500 Septic w/1350 Pumping Chamber
  • Model 6800 Holding 1 Piece Unit
  • Model Low 4500 Holding 1 Piece
  • Tank Risers
  • Model 36000 Fire/Water Storage Tank
  • Model 6800 Septic 1 Piece Unit
  • Model 27500 Holding 2 Piece Unit
  • Model Low 9000 Holding 1 Piece Unit
  • Steps
  • 410 Pumping Chamber