GJ Gentry General Engineering, Inc. | Upland, Ca.

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Execute your project on time and with exceptional quality.

- Pipeline

- Concrete

- Grading

1297 W. 9th Street
Upland, CA 91789

Phone: 909.693.3391

Mon. - 7am - 4pm

Tues. - 7am - 4pm

Wed. - 7am - 4pm

Thurs. - 7am - 4 pm

Fri. - 7am - 4pm

Sat. - CLOSED

Sun. - CLOSED

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