Grandparent DNA Testing – Choose the Best Option for You


Both options include our 45-marker grandparent DNA test, giving you everything required to collect cheek-swab samples quickly and safely at home.

Person using a smartphone showing a ‘Buy Now Pay Later’ screen, representing low-cost payment options for home paternity DNA testing.

Option 1. Low-Cost Grandparent DNA Test Kit — Pay Lab Fee Later

Order a grandparent DNA sample collection kit today and defer payment of the laboratory analysis fee until your samples have been returned for testing.

● Grandparent DNA sample collection kit – £4.99

● Free UK Royal Mail First Class postage included

● 45 genetic markers analysed as standard for enhanced accuracy

● No laboratory analysis fee payable upfront

● Laboratory fee settled later once samples are returned

● Option to split the laboratory fee where available

● Results typically issued next working day after samples are received and approved

Order Grandparent DNA Test – Pay Later
Home grandparent DNA test kit components laid out, including swabs, envelopes and paperwork.

Option 2. Pay Lab Fee Upfront — Free Postage Included

Pay the full laboratory analysis fee at checkout and receive your grandparent DNA sample collection kit with free UK postage and no further costs when returning samples.

● Grandparent DNA sample collection kit included

● Free UK Royal Mail First Class postage

● 45 genetic markers tested as standard for improved accuracy

● Laboratory analysis fee paid in full at checkout

● No additional charges when returning samples

● Results typically issued next working day once samples are received and approved

● Optional instalment payments available (subject to eligibility)

Order Grandparent DNA Test – £149
ISO 17025 accredited UK lab technician handling DNA test samples for paternity testing.

Simple, Reliable Grandparent DNA Testing — Two Ways to Order

Our grandparent DNA tests are designed to help establish whether a biological relationship exists between a grandparent and grandchild when direct parent testing is not available. For best accuracy, testing with two grandparents is strongly recommended and included at no additional cost.

All grandparent DNA test options use the same UKAS ISO 17025-accredited laboratory process and deliver highly accurate, reliable results. The testing method and laboratory analysis remain the same regardless of how you choose to order.

Each kit contains everything needed to collect cheek-swab DNA samples easily, comfortably, and discreetly at home, with clear step-by-step instructions provided.

All samples are analysed in our UK laboratory using 45 genetic markers as standard, providing enhanced accuracy for more complex family relationship testing. Results are typically issued the next working day once all valid samples have been received and approved for analysis.

Why families choose DNA Clinics for grandparent DNA testing

✔ Low-cost ordering options
Choose between a low-cost grandparent DNA sample collection kit (£4.99, free UK postage) with the option to pay the lab fee later, or pay the full lab fee upfront with nothing further to pay.

✓ Flexible payment choices
If you prefer, you can split the lab fee — paying part when samples arrive at the lab and the remaining balance once results are ready.

✓ Accredited laboratory testing with fast results
Grandparent DNA comparisons are analysed using an enhanced 45 DNA marker analysis in an ISO 17025-accredited UK laboratory, with results typically provided the next working day from receipt of samples at the lab.

✓ Friendly support from real Clinical Advisors
Our team is here to guide you, answer questions, and help you understand the grandparent testing process.

✓ Option to switch to a clinic appointment
If you later decide you require a legal grandparent DNA test, we can book you into one of our nationwide DNA Clinics.

Grandparent DNA Testing – Frequently Asked Questions

1. How accurate is a grandparent DNA test?

Grandparent DNA testing is highly accurate when suitable participants are tested. Using our enhanced 45 DNA marker analysis, results provide a strong and reliable indication of whether a biological relationship exists between a grandparent and grandchild.

2. When is grandparent DNA testing used?

This test is typically used when one parent is unavailable for testing, helping determine whether a biological relationship exists between a child and a grandparent.

3. How long do grandparent DNA test results take?

Results are usually available normally on the next working day from the laboratory receiving all samples.

4. Can I pay later or split the lab test fee?

Yes. You can order a low-cost grandparent DNA sample collection kit for £4.99, which includes free UK postage, and pay the laboratory analysis fee later once your samples have been returned to our laboratory.

Where available, you may also choose to split the laboratory analysis fee, paying part when samples are returned and the remaining balance when results are ready.

Eligible customers may be able to spread the cost further using payment options such as PayPal Pay Later, Klarna, or other split-payment methods shown clearly at checkout.

These flexible payment options are designed to make grandparent DNA testing more accessible while maintaining the same accredited testing process and turnaround times.

These flexible options are designed to make sibling testing accessible regardless of your budget.

5. Does everyone need to be present to take part?

No. Each participant can collect their sample at home using the provided cheek swabs and return them together or separately.

6. Can this test be used for court, immigration, or legal purposes?

No. This grandparent DNA test is for personal information only. If you need a legally recognised test, we can arrange this through our nationwide DNA Clinics service.

7. Will anyone else know I’ve taken a grandparent DNA test?

No. All testing is handled confidentially, and results are shared only with the individuals you authorise.

8. What happens after I send the samples back?

Once the laboratory receives the samples, analysis begins immediately. You’ll be notified when results are ready and can access them securely online.