
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.

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