Illinois Grandparent DNA Testing – Legal & At-Home Services

Grandfather holding smiling grandchild: Find accurate Grandparent DNA Testing in Illinois

Fast, Accurate Illinois Grandparent DNA Tests for Paternity & Family Relationships

Are you trying to confirm paternity or verify a family relationship and the alleged parent is not available? Grandparent DNA testing in Illinois provides a reliable, scientific solution—even when direct paternity testing isn’t possible. At GameDay DNA, our accredited labs offer confidential, court-admissible and at-home grandparent DNA testing services for families across Illinois.

Find Grandparent DNA Testing Near Me in Illinois – Locations & Convenience

Searching for “grandparent DNA testing near me in Illinois”? GameDay DNA partners with collection sites statewide, offering easy access in Alsip, Barrington, Carrollton, Centralia, Champaign, Chicago, Chicago Heights, Decatur, Dixon, Downers Grove, Evanston, Gibson City, Granite City, Harrisburg, Joliet, Lawrenceville, Lincoln, Maryville, Morris, Northbrook, Olympia Fields, Peoria, Pontiac, Robinson, Salem, Sauk Village, Sterling, and Waukegan. We are committed to making the testing process accessible and stress-free for all.

What Is Grandparent DNA Testing and Why Is It Important?

Grandparent DNA testing evaluates the likelihood of a biological relationship between a child and their alleged grandparents. It’s essential for Illinois families needing to establish paternity or other family connections when the alleged parent is unavailable for testing.

How Does Grandparent DNA Testing Work?

We collect painless, non-invasive cheek swabs from the child and one or both grandparents. Samples are analyzed in an AABB-accredited laboratory for a statistical probability of kinship. For maximum accuracy, testing both grandparents and including the mother’s DNA is recommended.

Types of Grandparent DNA Tests in Illinois

  • Full Grandparentage Test: Tests both maternal and paternal grandparents plus the child for maximum accuracy.

  • Single Grandparentage Test: Tests one grandparent and the child, helpful when only one grandparent is available.

Legal vs. At-Home Grandparent DNA Testing

  • Legal (Court-Admissible) Testing:
    Strict chain-of-custody procedures make results admissible for:

  • Paternity disputes

  • Child support and custody

  • Inheritance or immigration cases

  • At-Home Grandparent DNA Test:
    Convenient and discreet, perfect for private knowledge. Fast results, but not valid for court/legal purposes.

How Much Does Grandparent DNA Testing Cost in Illinois?

  • At-Home Grandparent DNA Test: $300 + tax/shipping

  • Legal Grandparent DNA Test: $400 to $499 + tax

Contact us to learn about discounts or payment plans.

Why Trust GameDay DNA for Illinois Grandparent Testing?

  • Confidential, and court-admissible results

  • Fast turnaround: results in as little as 5 business days

  • Friendly support—call us at (302) 527-1789

  • Local centers across Illinois for your convenience

Grandparent DNA Testing: Frequently Asked Questions (Illinois)

Who Needs to Be Tested in a Grandparent DNA Test?

Typically, the child and one or both grandparents participate. Including the mother’s sample can improve the reliability of results but is not legally required. See Illinois Department of Public Health – Paternity Information and HFS: Paternity Information You Should Know (PDF).

How Accurate Is a Grandparent DNA Test?

Illinois law requires DNA results to show a probability at least 99.9% for legal paternity presumptions (results 1,000x more likely than a random man). Results from AABB-accredited labs are accepted in court. Illinois HFS: Genetic Testing Accuracy and Illinois Compiled Statutes – Parentage Act Article 4.

Can a Grandparent Request a Paternity Test?

Grandparents may request a genetic test if relevant to inheritance, support, or custody; actual legal authority usually requires a court order or agreement by all parties. How to Establish Paternity (HFS) and Illinois Parentage Act Article 4.

How Long Does It Take to Receive the Test Results?

Results are typically available within 5 business days after samples reach the lab. Expedited options may be available for faster turnaround times.

Can a Grandparent Do a DNA Test on a Grandchild Without the Parent’s Consent?

Legal testing for minors in Illinois requires parental/guardian consent; at-home tests do not require consent, but their results are not court-admissible. Illinois Parentage Law Details and Illinois Voluntary Acknowledgment of Paternity (PDF).

How Much Does a Legal Grandparent DNA Test Cost in Illinois?

Legal grandparent tests in Illinois typically cost between $400 and $499, depending on additional services like expedited results.

Can Grandparents Use DNA Testing for Immigration Cases?

Yes! Many immigration cases require proof of familial relationships through grandparent testing when direct parentage testing isn’t possible. Our AABB-accredited labs meet all USCIS requirements.

What Happens If My Grandparent DNA Test Results Are Inconclusive?

If results are inconclusive, the lab or court may order testing of additional relatives (both grandparents and/or the mother) for greater clarity. Illinois Department of Public Health – Genomics & Genetic Services.

Conclusion: Trusted Illinois Grandparent DNA Testing – Fast, Accurate, Confidential

Grandparent DNA testing is the proven solution for establishing paternity and verifying family relationships in Illinois—especially when direct father testing is unavailable. With GameDay DNA, you get accurate, court-admissible and at-home DNA tests, rapid results, and complete confidentiality from a provider trusted by families statewide.

Whether you need a legally admissible grandparent DNA test for paternity, child support, immigration, or inheritance—or simply peace of mind—our experts guide you every step of the way.

Don’t leave family questions unanswered. Call 302-527-1789 now to schedule your Illinois Grandparent DNA test or contact us online. Get accurate results and peace of mind—fast.


To order a Grandparent DNA Test, call 302-527-1789


Follow us on Instagram and Twitter! If you have questions about paternity tests or other DNA testing services, please contact our Client Support Center at 302-529-1789, Mon-Friday from 8:30 AM to 5:30 PM Eastern Time. Our friendly, expert representatives are ready and happy to help. Get answers anytime by visiting our Help Center.

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