




Our services
General construction
We make street light installations, gas leak repairs and replacements, municipal water and rural water systems and also maintenance for residential and commercial developments.

Underground utilities
We provide electric, gas and telecommunication infrastructure, and gas service, too.




General construction
We coordinate subcontractors for any variety of utility project, enhancing the quality of all our process.

Why choose us?
Safe workplace
Innovative process
Quality service
Tech and innovation
Customer Testimonials

What’s new
TSU One Extra Mile Award Winner- Congratulations Rogelio Ramirez !
https://youtu.be/qGoAB6MwLN4?si=Sndbq1gDuPFRsiXG VIDEOS below- Click on the play button.
“DD Spotlight” Winners
TSU Safety Manager Joe Sanchez implemented a new communication tool “DD Spotlight” available to our employees through TSU’s direct deposit email notification. Links are now
Frequently Asked Questions
Please contact us using the email info@tsu1.com
Please contact us using the email info@tsu1.com