DOT-registered cargo tank facility

Cargo tank repair, testing and certification.

Tell us what the unit needs and when you can spare it. We confirm a slot, do the work, and hand back the paperwork.

  • Registered cargo tank facility - certificates you can file
  • Mobile service to your yard or plant
  • Due-date tracking so nothing rolls out expired
  • Straight estimates before the wrench turns

What we do

Inspection, testing and repair on DOT 406, 407, 412 and MC-series cargo tanks.

Testing

  • Annual external visual + leakage test

    The yearly 180.407 pair: external visual inspection and leakage test, with certificate.

  • Internal visual inspection

    Confined-space internal inspection of the shell, heads and lining.

  • Pressure test (hydrostatic)

    Five-year hydrostatic retest of the tank and piping.

  • Thickness test

    Ultrasonic wall thickness survey for unlined tanks in corrosive service.

  • Upper coupler inspection

    Fifth wheel plate and mounting inspection on tank semitrailers.

Repair

  • Manway gasket replacement

    Replace manway, fill cover or dome lid gaskets and reseat the cover.

  • Valve rebuild / replacement

    Internal, external, emergency or vapor valve rebuild or swap.

  • Vapor recovery system repair

    Vapor vents, adapters and recovery piping repair and leak-down testing.

  • Piping and fitting repair

    Discharge piping, elbows, camlocks and fittings.

  • Weld repair

    Certified shell, head, baffle and mount weld repair.

  • Lining repair / recoat

    Spot repair or full recoat of the interior lining.

  • Overturn / rollover protection repair

    Rollover rail, dome collar and protection hardware.

  • Mobile / on-site service call

    We come to your yard or plant for inspection and light repair.

  • Emergency call-out

    Same-day response for a leaking or out-of-service unit.

Parts

  • Hoses and fittings

    Loading hoses, camlocks, reducers and adapters supplied and fitted.

Certified welding repair on a tank in the shop

About A&A Tank Service

We keep tank trailers legal and working. Inspections, requalification testing, welding, valves, linings and vapor systems - in our shop or at your yard.

Client portal

Need a unit looked at?

Send the request. You will hear back with a confirmed time, not a maybe.

Your company

Used to verify and track this request.

Yard, plant or our shop.

What does it need?

Testing

Repair

Parts

Anything not on the list above.

Which trailers? Include the spec if you know it.

When can you spare it?
Anything we should know

After submitting, create or sign in to an account to track the request. We usually reply the same business day.

Already a customer? Sign in to see your units, due dates and invoices.