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Welcome Newmarket Pre-cast Concrete Products

Newmarket Pre-Cast has been in business serving southern Ontario since 1960. 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, 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 we still hold that standard today.


  • Model 18000 Holding 2 Piece Tank
  • LOW Model 4500 Septic 1 Piece Tank
  • Model 6800 Septic 1 Piece Tank
  • Model 68200 Fire/Water Storage Tank
  • LOW Model 3600 Septic 1 Piece Tank
  • Model 22500 Septic 2 Piece Tank
  • Model 68200 Septic 3-piece Tank
  • Model 2700 Septic 1 Piece Tank
  • Model 5900 Holding Tank
  • Model 32000 Holding 3 Piece Tank