Trinity Underground
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Trinity Underground: Your local civil construction experts for grading, utilities, and concrete pads.
12/13/2025
Crews carefully excavate and reinforce the trench while maintaining full traffic control and safety protocols. This essential underground utility work helps keep neighborhoods running smoothly and prepared for future development.
12/05/2025
Unearthing what keeps communities running. Our crew is safely exposing buried utility lines before moving into the next phase of installation.
11/28/2025
Breaking new ground—one scoop at a time. đŸ’ª Our team is hard at work laying the foundation for the infrastructure that supports strong, lasting communities. Precision, power, and progress are what drive every project we take on.
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Telephone
Address
Phoenix, AZ
85040
Opening Hours
| Monday | 7am - 5pm |
| Tuesday | 7am - 5pm |
| Wednesday | 7am - 5pm |
| Thursday | 7am - 5pm |
| Friday | 7am - 5pm |
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