Grandparent DNA Test In New Jersey Services

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What is a Grandparent DNA Test?

A grandparent DNA test determines the biological relationship between a grandchild and one or both grandparents. This testing option is performed when a biological parent, typically the alleged father, is unavailable for a direct parent-child DNA test.

Who Should Participate in a Grandparentage DNA Test?

Grandparent DNA Testing requires either a grandmother, grandfather or both grandparents along with the grandchild, we recommend adding the grandchild mother for increased comparative index analysis.

The participants involved in your DNA test will be determined by your specific situation. Contact Paternity NJ at 888-970-4211 to speak with a DNA consultant regarding your situation today.

What Is the Difference Between a Legal and At-Home Grandparent DNA Test?

The difference between a legal and at-home grandparent DNA is as follows:

Legal DNA Grandparentage Test:

Legal DNA testing requires the establishment of a chain of custody. An unbiased third-party sample collector must collect all DNA samples. New Jersey residents can receive legal DNA testing services on-site or in an office. Our partner, AABB Accredited Laboratory, will test and analyze all DNA testing samples. State and government institutions require this accreditation when submitting evidence to family court or Social Security.

At-Home DNA Grandparentage Test:

Our at-home DNA testing service provides peace of mind because it does not require a chain of custody. You can perform this option in the comfort of your home, office, or any private location. This testing option cannot be used for legal purposes, despite the DNA analysis following the same criteria as our legal DNA testing option.

How long do Grandparent DNA Test results take?

Standard legal or at-home grandparent DNA testing results arrive in two to three business days on average. A copy of your results will be mailed to your New Jersey address and an additional copy will be sent to your email once your results are completed.

How can I schedule a DNA testing appointment in New Jersey?

Contact our office at 888-970-4211 to schedule a in-office or mobile DNA testing appointment today. Below are some of the areas we serve in New Jersey. If you do not see your county please contact our office because we provide DNA testing services to the entire state.

DNA Testing Locations Nearby

Atlantic County
Bergen County
Burlington County
Camden County
Cape May County
Cumberland County
Essex County
Gloucester County
Hudson County
Hunterdon County
Mercer County
Middlesex County
Monmouth County
Morris County
Ocean County
Passaic County
Salem County
Somerset County
Sussex County
Union County
Warren County

How will my DNA samples be collected in NJ?

The standard method of collection is by cheek swabs. Blood collection is also an option and offers the same accuracy as cheek swabs, but it is more invasive and painful.

Alternative Samples:

The following forensic samples can be used to determine biological relationships:

  • Hair follicles
  • Toothbrush
  • Blood stains on a handkerchief
  • Earwax

Please note these alternative samples are used for non-legal DNA testing purposes only. Certain forensic samples, such as hair follicles, require a court order for use in legal testing.

Contact our office at 973-718-4515 for more information about using forensic samples for legal purposes.

Frequently Asked Questions

How accurate are Grandparent DNA tests?

Key Accuracy Points:

  • Probability of Relationship:
    When a biological relationship exists, the test typically shows a probability of 90% or higher.
  • Probability of No Relationship:
    If no biological link exists, the results will reflect this clearly.
  • Inconclusive Results:
    Occasionally, results may be inconclusive, especially if the child’s mother is unavailable to participate. Inconclusive probabilities range between 9% and 89%.

Overall Accuracy

  • Grandparent DNA tests generally exceed 99.9% accuracy when a biological relationship is confirmed.
  • Accuracy improves when testing includes both grandparents and the child’s parent.

What Causes Inconclusive Results?

Inconclusive results mean the test cannot definitively confirm or deny the biological relationship. This occurs in a small number of cases due to:

  • Common DNA markers: Some markers are widespread in the general population, making it difficult to confirm relationships based solely on them.
  • Inheritance variability: The natural way DNA is passed down can sometimes lead to fewer matches than expected.
  • DNA mutations: Changes in DNA markers can cause mismatches, complicating the analysis.

Can my DNA results be used legally?

Yes. Only Legal Grandparent tests can be used for legal purposes. Non-legal tests are intended for peace of mind and cannot be used in any legal proceedings.

Can a DNA grandparent test establish paternity in New Jersey?

Yes. Grandparent DNA testing establishes paternity when the alleged father is unavailable. This method is frequently used when grandchildren live with grandparents and need to establish biological relationships for Social Security benefits.


Why Choose Our Service?

Paternity NJ provides fast, accurate, and confidential DNA testing services throughout New Jersey. You need definitive answers for legal proceedings, child support decisions, or peace of mind for your family. 

We partner with AABB-accredited laboratories to deliver court-admissible results in 1-3 business days. We bring over 10 years of experience serving New Jersey families. We understand New Jersey legal requirements and work directly with local courts and attorneys.

We work with medical professionals to offer at-home collection kits and in-office and onsite specimen collections for legal needs. Affordable pricing options and flexible payment plans make getting the answers you need accessible and reliable.

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