Solutions That Empower

30+ Years of Service

For over 30 years, Sentinel-TDS, based in Dallas/Ft. Worth, TX, has been delivering industry-leading services that empower its customers to safely start up and optimize the performance of their facilities’ electrical and controls systems.

MISSION & VALUES

INDUSTRIES SERVED

Power

Oil + Gas

Chemical

Processing

Industrial

TDS Welcomes New CFO

Lisa Bridges has joined TDS as the company's new Chief Financial Officer. Lisa comes to TDS with nearly 30 years’ experience in the services industry having held varying levels of leadership in finance, accounting, and business development and operations. She has a...

TDS Now Carries Pelican Cases

TDS is now a proud distributor of Pelican! For your convenience, we have a wide variety in stock and ready to ship. It's a great add-on to any order to extend the useful life of your new or used equipment. NEED A CASE? Contact us today at...

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Our experienced technicians in POWER ISLAND, BALANCE OF PLANT OPERATIONS and EQUIPMENT MAINTENANCE

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CASE STUDY

COAL-FIRED POWER PLANT

TDS is currently the primary transition operations support contractor for a large coal-fired power plant in the Western U.S.

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Potomac Testing Inc. Joins TDS Family of Companies

Ft. Worth, TX – January 13, 2020 – TECHNICAL DIAGNOSTIC SERVICES (“TDS”) and POTOMAC TESTING INC. (“Potomac Testing”) announced today that Potomac Testing has joined the TDS family of companies. Commenting on the acquisition, Mr. Ken Bassett, President of Potomac...

TDS Expands Management Team with New VP Operations

Mr. Chris Heise has joined the company in the newly created role of Vice President of Operations. Bringing his 20 years of electrical, service and operational experience to TDS, Mr. Heise will have overall responsibility for field services and equipment...

Meet the TDS Team: BUSINESS DEVELOPMENT EXECUTIVE, DOUGLAS TOMISON

At TDS, we know that when it comes to safety, who you work with is important. We believe in the power of our people and their ability to provide innovative and tailored solutions for customers. So periodically, we like you to get to know them a bit better. In this...

TDS is Now a Proud Distributor of Omicron

You asked, We listened! TDS now distributes equipment from Omicron including these great products: CMC356 Universal Relay Test SetCPC100 Universal Primary Injection Test SetCPTD Capacitance /Dissipation Factor(Tan Delta)CTA SB2- CT analyzer with CT SB2 Upgrade Switch...

Company Founder John J. Lapicola Retires from TDS

Ft. Worth, TX – April 08, 2019 – TECHNICAL DIAGNOSTIC SERVICES (TDS) today announced the retirement of founder John J. Lapicola P.E. from company business operations. Mr. Lapicola started TDS twenty-five years ago with a mission of providing the power...

Happy 25 TDS!

TODAY IS THE DAY! 25 years ago on December 12th, TDS opened its doors with a mission of providing the industry with services and equipment at the right place, at the right time and at the right cost.With decades proudly serving many of the world's premiere...