Testlab Inc. 

Hayward Corporate Office

2463 Tripaldi Way

Hayward, CA 94545


PH (408) 988-0101

FX (408) 988-0103


Santa Clara Office

991 George Street

Santa Clara, CA 95954


PH (408) 988-0101

FX (408) 988-0103


To request a proposal or discuss your specific project please contact:


Customer service:



Fresno Office

4284 N. Knoll Drive

Fresno, CA 93722


PH (559) 272-1375



Altadena Office

PH (909) 510-5535


Hayward|Santa Clara- 408-988-0101 | Fresno- 559-272-1375 | Altadena- 909-510-5535


Ground Penetrating Radar (GPR)

The ground Penetrating Radar (GPR) is one of the latest technique utilized in the location of underground utilities.  A GPR signal is sent into the ground via a transmitter.  Some portion of the signal will be reflected from the metallic or non-mettalic utility which is recorded with a receiver.


We utilize GPR for the designation of underground utilities. No other GPR related services are offered at this time.


We have conducted several underground utlilty projects for the designation of gas, water, sewer, electrcial, telephone, storm and other utilities for multiple purposes.

Wrong password.