Well Water Testing in Wilmington, Delaware

7 verified well water specialists serving Wilmington. 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 Wilmington

$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 Wilmington

7 listings

Duffield Associates

Wilmington, Delaware

Featured
✓ DE Licensed Class C (Engineered-Designer)✓ Class C (Engineered-Designer)

Duffield Associates is located in Wilmington, Delaware and holds DE Licensed Class C (Engineered-Designer) certification. The firm provides Class C (Engineered-Designer) services. Contact Duffield Associates for more information.

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Pro
✓ DE Licensed Water Well Contractor✓ Water Well Contractor

Eastern States Construction Service Inc is a water well contractor located in Wilmington, Delaware. The company holds both a Delaware Licensed Water Well Contractor certification and a Water Well Contractor credential, providing expert well water contracting services. Contact Eastern States Construction Service Inc for more information.

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Karl Kunkle

Wilmington, Delaware

Pro
✓ DE Licensed Class D (Site Evaluator)✓ Class D (Site Evaluator)

Karl Kunkle is a Class D Site Evaluator located in Wilmington, Delaware. He holds a Delaware Class D Site Evaluator license and offers site evaluation services. Contact Karl Kunkle for more information.

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Duffield Assicoates, Inc

Wilmington, Delaware

Free
✓ DE Licensed Class B (Standard-Designer)✓ Class B (Standard-Designer)

Duffield Assicoates, Inc is located in Wilmington, DE and offers Class B (Standard-Designer) services. The company holds DE Licensed Class B (Standard-Designer) certification. Contact Duffield Assicoates, Inc for more information.

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Geo-Technology Associates Inc

Wilmington, Delaware

Free
✓ DE Licensed Water Well Contractor✓ Water Well Contractor

Geo-Technology Associates Inc is a water well contractor serving the Wilmington, Delaware area. The company maintains Delaware Licensed Water Well Contractor status and holds Water Well Contractor certification, ensuring compliance with state regulations for water well work. Contact Geo-Technology Associates Inc for more information.

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Howard L Robertson

Wilmington, Delaware

Free
✓ DE Licensed Class C (Engineered-Designer)✓ Class C (Engineered-Designer)

Howard L Robertson is a licensed Class C Engineered-Designer providing services in Wilmington, Delaware. He holds a Delaware license for Class C Engineered-Designer work. Contact Howard L Robertson for more information.

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Tws Environmental Llc

Wilmington, Delaware

Free
✓ DE Licensed Water Well Contractor✓ Water Well Contractor

TWS Environmental LLC is an environmental consulting and testing firm based in Wilmington, DE serving residential and commercial clients throughout Delaware and the surrounding mid-Atlantic region. The company specializes in radon measurement and mitigation, mold assessments, indoor air quality testing, and environmental site assessments. Their team of certified environmental professionals provides thorough testing, detailed reporting, and effective remediation planning to ensure safe living and working environments.

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Well Water Testing in Wilmington — 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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