Why Choose Milan Vault?

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At Milan Vault, we produce quality precast concrete Septic Tanks, Pump Tanks, Grease Interceptors, Burial Vaults and PermEntry® Basement Entry Systems. Each item is poured here in our Milan, Michigan plant.


  • Milan Vault is proud to be a National Precast Concrete Association certified facility.
  • Our plant is one of the highest-quality precast plants in the country.
  • We use only the best raw materials including ProFiber®-S fibers as additional reinforcement in all of our precast concrete products.


  • Our commitment to NPCA standards means we use only the best raw materials and components.
  • We conduct pre-pour and post-pour inspections on all of our molds and products.
  • We test every batch of concrete and keep meticulous records for quality assurance purposes.
  • We vacuum test our tanks to ensure water-tightness.


  • Everything that goes into our final product conforms to ASTM standards—from rebar to rubber boots and joint sealant.
  • Our batch plant operators are NPCA and American Concrete Institute Certified.
  • Milan Vault is one of a select number of plants in Southeastern Michigan to achieve this level of quality certification.

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