Well Water Testing in San Jose, California

7 verified well water specialists serving San Jose. Every listing shows the credentials we verified.

Informational only. This page helps you find certified professionals. It is not medical, legal, or structural safety advice. For any health or safety hazard, consult a certified/licensed expert. See our verification methodology.

Typical cost in San Jose

$150–$600

Credentials to expect

EPA-Certified Lab, State Health Dept Certified, NELAP Accredited

Key fact

~43 million U.S. homes rely on private wells; the majority are under-tested.

Well Water specialists in San Jose

7 listings

Dirtmarket Llc

San Jose, California

Featured
✓ CSLB A | C57

Dirtmarket Llc provides professional home safety services in San Jose, CA. The company holds CSLB A | C57 certification. Contact Dirtmarket Llc for more information.

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Environmental Testing

San Jose, California

Featured
✓ CSLB A | C57 | HAZ

Environmental Testing provides professional home safety services in San Jose, CA. The company holds CSLB A | C57 | HAZ certification. Contact Environmental Testing for more information.

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Ge Engineering Contractor

San Jose, California

Pro
✓ CSLB A | C57 | HAZ

Ge Engineering Contractor provides professional home safety services in San Jose, CA. The company holds CSLB A | C57 | HAZ certification. Contact Ge Engineering Contractor for more information.

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Welltest Inc

San Jose, California

Pro
✓ CSLB C57 | D04 | D21 | D56 | HAZ

Welltest Inc provides professional home safety services in San Jose, CA. The company holds CSLB C57 | D04 | D21 | D56 | HAZ certification. Contact Welltest Inc for more information.

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Blaine Tech Services Inc

San Jose, California

Free
✓ CSLB C31 | C57

Blaine Tech Services Inc provides professional home safety services in San Jose, CA. The company holds CSLB C31 | C57 certification. Contact Blaine Tech Services Inc for more information.

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Exploration Geoservices Inc

San Jose, California

Free
✓ CSLB C57

Exploration Geoservices Inc provides professional home safety services in San Jose, CA. The company holds CSLB C57 certification. Contact Exploration Geoservices Inc for more information.

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Nex Concierge Inc

San Jose, California

Free
✓ CSLB B | C57 | D06

Nex Concierge Inc provides professional home safety services in San Jose, CA. The company holds CSLB B | C57 | D06 certification. Contact Nex Concierge Inc for more information.

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Well Water Testing in San Jose — FAQ

How often should I test my well water?
The CDC recommends annual testing for bacteria, nitrates, and pH — and after any flooding or nearby land-use change.
What does a well water test cost?
A standard panel runs $150–$600 depending on the contaminants screened (bacteria, nitrates, arsenic, lead, VOCs).
Why use a certified lab?
Only EPA/state-certified or NELAP-accredited labs produce results accepted for real-estate transactions and regulatory purposes.

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