What we do

Stewart’s Integrity Services provides the next generation in hydrostatic testing for the pipeline and petro-chemical industries. We are setting a new standard one test at a time. We have the capability, experience and the equipment to complete even your most complex hydrostatic tests.

We look forward to providing you with unmatched quality service in the industry.


Stewart’s Integrity Services (SIS) is fully equipped for performing a wide variety of pipeline testing services, offering the most comprehensive hydrostatic testing in the South East Texas area.


SIS offers consulting services to better assist you in the preparation of systems needing tested through the recommissioning process.


After each test is complete, SIS will provide the client/contractor with a test report including all documentation necessary to meet DOT and/or company specifications.


Our test trailers are equipped with security monitoring cameras so the operator has a view of the testing area at all times during the testing phase.


Our team utilizes two engineering firms that work with the field technicians during the testing phase giving SIS the ability to provide P.E. Certificates in the field, streamlining the process for our clients.


The system utilizes wireless transmitters to record temperatures. This reduces the technician’s exposure to pressurized systems while testing and provides a real time reading at the technician’s work station.

Meet the Team

Chad Stewart

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Second Name

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Our works

See our projects.


Find customers review
  • During this project it was obvious that Willow’s management was extremely conscientious regarding the quality of workmanship, safety of their employees and the sub-contractors and adherence to the construction schedule.

    Donna S. Taylor
  • We know the specifications we had decided upon made your work much more difficult than would be the normal case, but you each handled the renovation with good suggestions, ideas and workmanship.

    Charles A. Blizzard
  • Throughout the course of construction, many details were subjected to the usual litany of last minute changes. The patience, professionalism, speed and skill with which these items were handled was nothing short of amazing.

    Mark A. Somerville
    Vice President of Construction
  • We would like to extend our sincere thanks for a job well done to every person at Willow who had a hand in this project. We are very pleased with the final product and look forward to working with your professional team again in the future.

    Warren D. Clem
    President, Warren’s Wood Works, Inc.

Contact Us

PO Box 21218
Beaumont, TX 77720

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