Grandparent DNA Testing in NYC (When the Alleged Father Can't Be Tested)
Appointment-based grandparentage testing is available across all five boroughs. It establishes a biological relationship between a child and the alleged father's parents when the father is unavailable. We coordinate documented chain-of-custody collection through an AABB-accredited laboratory partner, with results typically available in 3-5 business days after the laboratory receives all samples.
AABB-accredited laboratory partner · NYSDOH-permitted laboratory · Se habla español · All five boroughs
Call your nearest location: Queens 718-585-4844 · Manhattan 212-235-1857 · Brooklyn 347-630-8222 · Bronx 929-242-3717 · Staten Island 718-841-7200
When Grandparent DNA Testing Is Used
Grandparentage testing is often used when the alleged father is deceased and the child needs documented evidence of a biological connection to his parents. It can also help when the father cannot be located, refuses to test, is incarcerated, or is overseas. Families may request this type of testing for Social Security survivor benefits, inheritance or estate matters, birth certificate or custody questions, and immigration petitions involving a grandparent relationship. We coordinate the participant setup and documented collection through an AABB-accredited laboratory partner.
If the alleged father can be tested directly, a standard paternity test is simpler and more conclusive - call and we'll confirm the right test for your situation.
One Grandparent or Both?
Both, whenever possible. Testing both of the alleged father's parents lets the laboratory reconstruct his DNA profile far more completely, which produces a stronger, more conclusive result. Testing a single grandparent is possible and often done - but the analysis is statistical, and including the child's mother in a single-grandparent case significantly strengthens it. When you call, tell us who is available to test and we'll recommend the setup most likely to give you a clear answer.
Can a Grandparent Request a DNA Test?
Any adult can voluntarily arrange DNA testing for themselves and a child in their care with appropriate consent. For a minor, a parent or legal guardian must consent to the child's participation. Whether a grandparent can compel testing - for example, in a custody or visitation dispute - is a legal question decided through Family Court. A family law attorney is the right person to advise you about that process; we do not provide legal advice. Once testing is ordered or agreed, we handle the documented collection, identity verification, and laboratory coordination.
Grandparent DNA Testing Near You - All 5 NYC Boroughs
We schedule appointment-based collection in Queens, the Bronx, Manhattan, Brooklyn, and Staten Island. Mobile collection may be available for qualifying cases, including when participants need coordinated collection in different locations. Se habla español.
How It Works
Call and describe who is available to test
Call the nearest location and tell us who is available to test. We'll explain whether grandparentage testing fits your case and what setup is strongest.

Book at your borough location
Choose a convenient appointment time at one of our NYC locations, or ask about coordinated collection if participants are in different cities.

Complete in-person collection
Each participant provides a simple cheek swab with photo ID verification and documented chain-of-custody collection.

Receive your results
Results are typically available in 3-5 business days after the laboratory receives all samples and are released only to authorized parties.
Grandparent DNA Test Cost in NYC - How Your Quote Works
The cost of a grandparentage test depends on the number of participants - one or both grandparents, the child, and the mother when included - plus any coordination needs when people test at different locations. We provide an exact all-in quote in one phone call. Your total is confirmed before you commit, and there are no hidden fees. Tell us who is available and where they are located so we can explain the likely setup.
FAQ - Grandparent DNA Testing in NYC
How accurate is a grandparent DNA test?
Grandparentage results are statistical. Testing both paternal grandparents produces the strongest, most conclusive analysis; single-grandparent tests are possible and are strengthened by including the child's mother. We'll explain what to expect from your specific setup when you call.
Can a grandparent DNA test prove paternity if the father is deceased?
It can establish a biological relationship between the child and the deceased father's parents, which is commonly used as evidence of paternity for matters like Social Security survivor benefits, inheritance, and birth certificate questions. For how the results apply to a specific legal matter, consult a family law attorney - we handle the documented testing side.
Is a grandparent DNA test court-admissible?
Yes. Every grandparentage test we schedule follows documented chain-of-custody collection with photo ID verification, performed by an AABB-accredited laboratory partner - the standard courts and agencies require.
Does the child's mother need to participate?
Not always, but her participation strengthens the analysis - especially in single-grandparent cases - because the laboratory can subtract her DNA contribution and evaluate the paternal side more precisely.
How long does a grandparent DNA test take?
Results are typically available in 3-5 business days after the laboratory receives all samples.
How much does a grandparent DNA test cost in NYC?
Pricing depends on the number of participants and any coordination needs. Call your nearest location for an exact all-in quote - confirmed before you commit, with no hidden fees.
Schedule Grandparent DNA Testing in NYC
One call identifies the right participants, explains the strongest test setup, and gets you an exact all-in quote before you commit.
If the father isn't available, other options may include siblingship testing or avuncular testing, depending on who can participate.
Queens 718-585-4844 · Manhattan 212-235-1857 · Brooklyn 347-630-8222 · Bronx 929-242-3717 · Staten Island 718-841-7200
Se habla español.
