Reliable Sibling DNA Testing in Canada
Determine Whether You Are Full Siblings, Half Siblings or Biologically Related
Confidential sibling DNA testing for brothers and sisters across Canada.
SCC Accredited DNA Testing
Results in 7–10 Business Days
Home DNA Test Kits Available Across Canada
Legal Testing Available with Chain of Custody
Find Out Whether You Share the Same Biological Parent
A sibling DNA test compares the DNA of two or more individuals to determine the likelihood that they are biologically related.
Testing can help determine whether two people are:
• Full siblings who share both biological parents
• Half siblings who share one biological parent
• Unrelated
The test can be performed even when a parent is unavailable. In some cases, including a known biological parent can strengthen the analysis and help provide a more conclusive result.
Results are typically available within 7–10 business days after the laboratory receives the samples.
Accredited DNA Testing You Can Trust.
Full Sibling DNA Test
Used when two individuals want to determine whether they share both biological parents.
Half Sibling DNA Test
Used when two individuals want to determine whether they share one biological parent.
Not Sure Which Test You Need?
That’s okay. Tell us what relationship you are trying to confirm and who is available for testing. Our team can help determine the most appropriate DNA test before you order.
How Does a Sibling DNA Test Work? 3 Options
Understanding Your Sibling DNA Results
Unlike a direct paternity test, sibling DNA testing is a relationship-probability test. The laboratory compares the participants’ DNA profiles and calculates how much more likely the observed DNA is if the individuals are siblings rather than unrelated.
In some cases, adding a known biological parent can increase the strength of the analysis.
Yes. The individuals whose biological relationship is being tested must each provide a DNA sample. The most common collection method is a simple cheek swab.
Contact Forensics Canada Inc. and tell us which family members are available for testing and what biological relationship you are trying to determine. We can help you identify the most appropriate relationship DNA test before you order.
Yes. Participants do not normally need to be in the same location. Arrangements can be made for sample collection in different locations, depending on whether you require a personal or legal DNA test.
Our sibling DNA test starts at $349. Additional fees may apply depending on the number of participants, the type of testing required, and whether legal chain-of-custody collection is needed.
Results are typically available within 7–10 business days after the laboratory receives all required samples.
Legal sibling DNA testing may be used for legal purposes when samples are collected under an approved chain-of-custody procedure and identification requirements are followed. Home DNA tests are intended for personal knowledge and are not generally intended for court use.
DNA is usually collected using painless cheek swabs rubbed gently inside the mouth. For a personal knowledge test, samples may be collected at home. Legal tests require controlled sample collection and proper chain-of-custody procedures.
It may help determine whether two individuals are likely to share a biological parent. If the goal is specifically to determine whether two people share the same father, including a known biological mother when available can strengthen the analysis.
Sibling DNA testing uses statistical analysis to calculate the likelihood of a biological sibling relationship. Unlike a direct paternity test, sibling results are expressed as a probability rather than simply a near-100% inclusion or exclusion. In some cases, additional family members may be recommended to strengthen the result.
Yes. The individuals whose biological relationship is being tested must each provide a DNA sample. The most common collection method is a simple cheek swab.
Full siblings share both biological parents. Half siblings share only one biological parent.
A sibling DNA test compares the DNA of two or more individuals to determine the likelihood that they are biologically related as full siblings, half siblings, or unrelated.

