Discreet Infidelity Investigations

Suspect an Affair? Get Proof from Toronto’s Leading Cheating Spouse Investigators.

Cheating, Affairs, Infidelity – Get Proof Now

If you’re worried your partner might be cheating or being unfaithful, you’re not alone. For over 30 years, Investigation Hotline has helped people just like you get real answers through trusted cheating spouse, affair, infidelity, and matrimonial investigations across Toronto and Ontario, including Markham, Richmond Hill, Brampton, and beyond.  You can view the areas we cover by clicking here, but we also cover investigations across Canada and worldwide.

Every relationship is different, which is why we treat your case with empathy and focus, giving you the confidence to put your doubts to rest and protect what matters most. No more “what ifs“. Our expert investigators are ready to deliver the facts so you can make informed decisions about your future.

We gather evidence without your partner ever knowing we’re involved.

Trusted Infidelity Specialists

Your gut feeling is not based on nothing. For decades, our skilled private detectives have helped clients get clarity about unfaithfulness or suspicious partners. We use discreet surveillance,solid evidence collection, and digital research to confirm or rule out adultery with care and confidentiality. From unexplained absences to changes in behavior, we’re here to help you get the proof you need, with professionalism and respect.

Intelligent Results You Can Count On

When you suspect cheating in your relationship, you deserve clear answers. Our investigators use thoughtful methods, from discreet tracking to deep social media invstigation and online checks, to help you catch a cheater without tipping them off. Every case is tailored to your unique situation, whether you are dealing with a suspicious wife, husband, girlfriend, or boyfriend. Whether you need to protect your finances, make a confident decision about your relationship, or simply put your mind at ease, we’re here to support you. Don’t stay stuck in doubt. Let us help you find the truth.

child looking out of a window

Child Custody and Protecting Your Children

Infidelity can put children at risk when a new partner enters their lives. We often see custody disputes where one parent suspects drug or alcohol abuse, unsafe living conditions, or failure to respect court-ordered visitation tied to a new boyfriend or girlfriend. Concerns about a partner bringing unsafe individuals around your children are serious. We gather the evidence needed to protect your child’s welfare, ensure compliance with custody agreements, and support fair outcomes in family court.

You are not alone. Our expert team is on hand to help you with child custody or domestic abuse investigations today.

How to Tell If Your Partner Is Cheating: 8 Warning Signs of Infidelity

While no single clue proves someone is cheating, there are red flags that might mean your partner is being unfaithful. If you notice one or more of these behaviors, it is likely time to speak with our expert team for help.

Common signs your partner may be cheating include:

🚩 They claim to be working late or away without a clear reason

🚩 They’re suddenly secretive about their phone or computer

🚩 Their hobbies, appearance, or routine change quickly

🚩 They show less affection, sex, or emotional connection

🚩 They act distant, cold, or emotionally checked out

🚩 You see unexplained charges on credit cards or bank accounts

🚩 They pick fights for no reason, or push you away

🚩 They lie, dodge questions, or tell inconsistent stories

Stop Wondering. Start Knowing.

You’ve noticed the excuses, the distance, the changes that don’t add up. What if you’re right? What if there’s more going on than they’re telling you? Ignoring the signs could cost you your finances, even your future. Our licensed investigators know how to confirm the facts, quickly and confidentially, so you can make strong, informed decisions. Don’t stay in the dark. Protect yourself and get the clarity you deserve today.

“I was nervous to reach out, but they treated me with so much respect. They showed me proof I never would have found on my own, and helped me feel stronger moving forward.” – Rebecca L., North York

“I felt lost and overwhelmed by my partner’s sudden changes. Investigation Hotline listened without judgment and helped me see what was really happening. Their evidence gave me the confidence I needed.” – Michael T., Mississauga

“We’ve seen thousands of cases. If something feels wrong, it probably is.” – Senior Investigator, Investigation Hotline

FAQ about our Infidelity & Cheating Partner Investigations

Q1. I am embarrassed to talk to people about this...

You don’t need to be! We get dozens of calls a week about partners who suspect their loved one is cheating on them, from Etobicoke to Newmarket and across the world.

Q2. What happens if I turn out to be wrong?

Nothing! You get the answers and clarity that you need and want in your relationship. That peace of mind will make you happier and can help strengthen your relationship. Honestly, it’s the best result that can happen.

Q3. Will my partner find out that I'm investigating them?

No—our investigations are 100% discreet and confidential. Your partner will not be aware that an investigation is taking place unless you choose to share that information. Our licensed private investigators are trained in covert surveillance and use advanced tools and techniques to gather evidence without raising suspicion. From your first call to the final report, your privacy and safety are always our top priority.

Q4. Is it worth hiring a private investigator?

Yes—if you’re living with doubt, suspicion, or unanswered questions, hiring a private investigator can provide the clarity you need to move forward. A professional investigator can uncover the truth discreetly, using legal and proven methods to gather real evidence that’s difficult or impossible to obtain on your own. Whether you’re seeking peace of mind, emotional closure, or support for legal decisions, the information you gain can be invaluable. Many clients tell us the investigation helped them reclaim control, confidence, and clarity in their lives.

Q5. What kind of evidence can I expect to receive from the investigation?

You’ll receive clear, detailed evidence tailored to your specific situation. This may include time-stamped photos, video footage, location tracking, activity logs, or other forms of documentation—depending on the methods used and the nature of the case. All evidence is collected legally and ethically, and can be used to support personal decisions or legal proceedings if needed. We’ll walk you through everything to ensure you understand what you’re seeing.

Q6. Can your investigation help me in court if I’m getting a divorce?

Yes. We can collect admissible evidence to support adultery or infidelity claims in family law proceedings, ensuring you have solid proof if needed.

Q7. How much does a cheating spouse investigation cost?

Pricing depends on how many hours or days of surveillance you need, the complexity of the case, and any extra services like GPS tracking or digital forensics. We’ll provide a transparent estimate before you commit. As a general guideline, you can view our basic rates by clicking here.

Q8. Can I investigate a boyfriend or girlfriend, or only a spouse?

We can help with any relationship: spouse, boyfriend, girlfriend, or domestic partner. If you suspect infidelity, we’ll help you confirm what’s really happening.

Q9. What areas do you cover?

We serve Toronto and the GTA, including North York, Richmond Hill, Brampton, Mississauga, and surrounding Ontario cities, and can assist with nationwide and international cases through our network. View our locations by clicking here.

From Fear to Facts

How our clients turned suspicion into certainty, and peace of mind.


Delivering Excellence: Related Services

Need more ways to protect yourself and get answers? Explore our full range of investigation services, from thorough background checks to advanced tracking, social media monitoring, and bug sweeps. Each service is built to protect your privacy, strengthen your case, and help you make confident choices about your future.

Learn More About Cheating & Infidelity With Our Expert Insights

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Our Experts are Here to Help

Fill out the form below and a member of our team will be in touch. We aim to respond to all inquiries within 1 business day. Alternatively, you can call us on: +1 416-205-9114 or email us directly at info@investigationhotline.org.