Typical Services:

  • Modifications of Existing Tanks
  • Installation of Collars and Tank Sumps on Existing Tanks
  • Repair of Tank Damage
  • Repair and Replacement of Fittings & Manways


We can upgrade existing fiberglass underground storage tanks!

  • Upgrade your Single-Wall Underground Fiberglass Storage tank with the Biofuel Tank Upgrade (BTU®). Ethanol blends, up to and including E100, and biodiesel blends up to B100 are all compatible with the BTU upgrade.
  • The BTU service includes a 10-year Internal Corrosion Limited Warranty
  • Also see our Retank® service – A New Tank Inside Your Existing Fiberglass Underground Storage Tank


We can convert your existing Single-Compartment Tank into a Multiple Compartment Tank in the Field!

  • While the tank is still in the ground
  • Adding a Bulkhead inside of the tank
  • Finished product designed the same as our factory-produced Compartment Tanks


We can convert your leaking tank sump into a Water-Tight Sump Enclosure

  • Our technician cuts out the existing top
  • Then installs a gasketed 34″ opening top
  • The finished product is water tight and provides easy access


Exclusive Owens Corning Limited Warranty Work

Containment Solutions Field Service network was selected by Owens Corning as their exclusive service group to modify and perform limited warranty work on tanks sold between 1964 and 1994.


For product literature Click Here




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CSI is a Woman Owned Business certified by the WBENC.