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



Electromagnetic Pipe Locators




Underground utility companies that are members of the Underground Service Alert (USA) will designate and mark only the utilities that they own. Private utilities (non-members) and utilities located on private properties are outside the USA scope of services. For instance many industrial buildings, shopping centers, apartment complex, universities, airports and others have underground utility lines after the main meter and between buildings. Geovac will designate and mark these facilities to ensure that, in the event of an excavation need, the utilities are protected and the excavation crew is kept safe.

Wrong password.