Hiring a private investigator is not something most people do regularly. When the need arises, one of the first questions is usually simple: how much is this going to cost?
The answer is less straightforward. Private investigator fees in Canada can vary considerably depending on the type of investigation, the amount of work required, where the investigation takes place, and, perhaps most importantly, how the agency structures its pricing.
Some investigators charge by the hour. Others require a retainer and deduct fees and expenses from it as the investigation progresses. Some services are offered at a flat rate. Other agencies offer investigation packages with a defined scope and price.
Understanding these differences is important. A low advertised hourly rate does not necessarily mean a low final bill, while a package with a higher upfront price may include considerably more.
This guide explains how private investigator pricing works in Canada, what additional charges you may encounter, and what you should look for when comparing investigation costs.
What Does a Private Investigator Cost in Canada?
There is no single standard rate that applies to every private investigator or every investigation in Canada. The cost depends on the nature of the assignment.
A relatively straightforward address locate may require a very different amount of work than a missing person investigation. A few hours of surveillance will cost less than surveillance conducted strategically over several days or weeks. A basic information search is also very different from an in-depth background investigation involving multiple sources and extensive research.
For surveillance, currently published Canadian rates provide examples ranging from approximately $75 to $125 per hour. But the hourly rate is not necessarily the final cost. Some agencies also charge separately for mileage, travel time and other expenses. Published examples include $75 per hour plus $0.79 per kilometre, $95 per hour plus travel time and mileage, $100 per hour plus $0.80 per kilometre, and $125 per hour plus mileage.
The pricing model used by the investigation agency can make just as much difference as the type of investigation itself.
This is why asking only, “What is your hourly rate?” may not tell you what an investigation will actually cost. A better question is: What will I be charged in total, and what exactly is included?
How Private Investigator Pricing Usually Works
Private investigation agencies generally use one or a combination of several pricing models.
Hourly Billing
With hourly billing, the client pays for the investigator’s time. This sounds straightforward, but agencies differ in what they consider billable time.
Depending on the company and the agreement, billable time may include active surveillance, travel, research, case preparation, telephone calls, administrative work, report writing and other activities connected to the investigation.
Hourly billing can make sense when the amount of work required is genuinely difficult to predict. The disadvantage is that the final cost may not be known when the investigation begins. If an investigation takes longer than expected, the total amount paid by the client can increase accordingly.
Retainers
Many private investigation agencies require an upfront retainer before beginning work. The agency then deducts investigative fees and expenses from the retainer as the case progresses. When the available funds are used up, the client may be asked to provide an additional retainer before further work continues.
This distinction is important. A retainer is not necessarily the total price of an investigation. In many cases, it is simply the amount required to open the file and begin working. Before paying a retainer, clients should ask whether it represents a maximum budget or whether additional payments may be required.
Flat Fees
Certain investigative services may be suitable for flat-fee pricing. This is more common when the scope of work can be reasonably defined in advance. A flat fee can make costs easier to understand, but clients should still confirm what is included. A service advertised at a flat price may still have additional expenses depending on the agency’s terms.
Investigation Packages
Another approach is package-based pricing. An investigation package combines a defined price with a defined scope of service. Depending on the investigation, the package may include a certain amount of investigative or surveillance time, a period during which the work can be carried out, evidence collection, research and reporting.
Wolf Group uses a package-based model for many of its core investigation services. The objective is to make the financial commitment clearer before the investigation begins rather than starting with an open-ended hourly arrangement.
The Advertised Hourly Rate May Not Be the Final Cost
This is one of the most important things to understand when comparing private investigator prices.
Imagine an agency advertises surveillance at a particular hourly rate. A client may naturally multiply that rate by the number of surveillance hours they expect to purchase and assume that this will be the final cost.
Depending on the agency’s billing policy, that may not be the case. A number of other expenses can potentially be charged separately.
Mileage
Surveillance investigators often spend considerable time driving. An investigator may need to follow a subject between multiple locations, travel across a city or continue surveillance when the subject unexpectedly drives a significant distance.
Some agencies charge mileage separately on a per-kilometre basis. Current published Canadian examples include rates of $0.65, $0.79 and $0.80 per kilometre. The cost may seem minor when looking at the rate per kilometre, but it can add up during an investigation involving extensive driving.
Clients should ask whether mileage is included in the quoted price or billed separately.
Travel Time
Some agencies charge for the investigator’s travel time before active surveillance even begins. For example, if an investigator needs to travel from the agency’s location to another city, the client may be billed for that time. The same may apply to the return trip.
Depending on the distance involved, travel time can become a significant part of the final cost. One Canadian agency currently lists travel time at $55 per hour in addition to its surveillance rate and mileage charge.
It is therefore worth asking a very specific question: Does billing begin when the investigator reaches the surveillance location, or when the investigator starts travelling to the assignment?
Parking
Parking is a normal operational expense during surveillance, particularly in urban areas. An investigator may need to use paid street parking, a parking garage or another paid facility in order to remain close enough to observe the subject. Some agencies pass these costs directly to the client.
A single parking charge is unlikely to transform the cost of an investigation, but repeated parking expenses over several surveillance periods can increase the final bill.
Tolls and Transportation Costs
Maintaining surveillance sometimes requires the use of toll roads, ferries or other paid transportation. Depending on the agency’s billing model, these expenses may be added separately. An investigator cannot always predict where a subject will travel, which means these costs may be difficult to calculate before surveillance begins.
Hotels and Accommodation
Some investigations require travel outside the investigator’s normal service area. In other situations, a subject being followed may unexpectedly travel to another city.
If continuing the investigation requires an overnight stay, hotel or accommodation expenses may be charged to the client under some pricing models.
Meals and Operational Expenses
Surveillance does not always take place from inside a vehicle. An investigator may need to enter a restaurant, hotel, event, entertainment venue or another location where spending money is necessary to maintain discreet observation.
Depending on the agency’s agreement, reasonable operational expenses may be passed on to the client.
Administrative Work
Not all investigative work takes place in the field. A case may require preparation before surveillance begins, review of information provided by the client, organization of evidence, case management and other administrative work. Some agencies treat this time as billable.
Clients should understand whether administrative work is included in the quoted rate or charged separately.
Reports and Evidence Preparation
The work does not necessarily end when surveillance ends. Investigators may need to organize photographs, review video, prepare chronological notes and produce a written report. Depending on the agency, this may be included in the investigation fee or billed as additional professional time.
The format of the report may also matter. A basic written summary is different from a detailed investigative report accompanied by organized photographic or video evidence.
Communications
Another potential source of additional billing is communication about the case. Some billing models may include time spent on telephone calls, case updates or other communication with the client. This does not necessarily make the pricing model unreasonable, but clients should know in advance what counts as billable work.
Additional Investigators
Many surveillance assignments can be handled by one investigator. Others are more complex. A location may have multiple exits. A subject may drive aggressively or take actions that make surveillance difficult.
In certain situations, maintaining continuous and discreet coverage may require more than one investigator. If additional investigators are assigned, the cost can increase substantially.
Clients should ask whether additional investigators can be added without approval and how their time will be billed.
Third-Party Services
Some investigations may require services that are not performed directly by the investigation agency. Depending on the case, this might include specialized external services, long-distance travel, process servers, court-related costs or other third-party expenses.
The key question is whether these costs can be incurred automatically or whether the client must approve them first.
Wolf Group does not add routine administrative fees for items such as local parking, standard communications or basic report delivery. If a case requires billable third-party costs outside the normal scope, such as long-distance travel, specialized databases, process servers or court filing fees, the company’s current policy is to discuss these costs with the client and obtain approval in advance.
Why the Cheapest Hourly Rate May Not Produce the Cheapest Investigation
Comparing private investigators solely on their advertised hourly rates can be misleading.
Imagine two agencies. One advertises a lower hourly rate but separately charges mileage, travel time, parking, administrative work and report preparation. Another charges more upfront but includes most routine investigation costs within the agreed price.
The agency with the lower hourly rate may ultimately cost more. This does not mean there is anything inherently wrong with hourly billing or charging legitimate expenses separately.
Different agencies have different business models.
The important point is that clients should compare the total expected cost and scope of service, not simply the most visible number.
Before hiring a private investigator, consider asking:
- What exactly is included in the quoted price?
- Is there a minimum number of billable hours?
- Is travel time billable?
- Is mileage charged separately?
- Who pays for parking and tolls?
- Is administrative work billable?
- Is report preparation included?
- Are client communications billed separately?
- Can additional investigators be assigned?
- Can expenses be incurred without my approval?
- What happens when the initial retainer is exhausted?
A clear answer to these questions can be more useful than knowing the hourly rate alone.
A Different Approach: Fixed Investigation Packages
Wolf Group uses a package-based pricing model for many of its core investigation services. Rather than starting every investigation with open-ended hourly billing, the scope and price of the selected package are established in advance.
Routine investigation costs included within the package are not added to the client’s bill one small charge at a time.
This means clients are not separately billed routine administrative fees for items such as local parking, standard communications or basic report delivery when these are included within the normal scope of the package.
The goal is predictability.
A client should be able to understand the financial commitment before the investigation begins rather than discovering a series of routine additional charges later.
If an investigation requires an exceptional expense outside the normal package scope, such as long-distance travel or a specialized third-party service, the matter can be discussed with the client in advance.
Current package details and pricing are available on our Private Investigation Prices and Packages page.
How Much Does Surveillance Cost?
Published Canadian rates show that private investigator surveillance can cost approximately $75 to $125 per hour, depending on the agency and location. Some agencies charge additional mileage and travel costs on top of that hourly rate.
But the hourly rate tells only part of the story.
The total cost depends largely on how much surveillance is actually required, how many separate surveillance sessions are needed, whether the agency has a minimum number of billable hours per session, and over what period the surveillance can be conducted.
A short assignment intended to verify a specific event may require only one period of surveillance. A more complex investigation may require surveillance at different times and on different days. This is one reason the number of hours alone does not always tell the full story.
Twenty hours of surveillance, for example, does not necessarily mean an investigator should sit outside the same location for 20 consecutive hours.
In many cases, surveillance time is more effective when it is strategically deployed.
How Many Hours of Surveillance Will You Actually Need?
This can have a much greater effect on the final cost than the difference between two hourly rates. A client may believe that one or two hours of surveillance will be enough to obtain an answer.
Sometimes a short surveillance assignment is appropriate, particularly when there is a very specific event, location and timeframe to observe. But in many cases, one or two hours is simply not a realistic window in which to expect meaningful evidence.
- The person being observed may leave later than expected.
- They may change plans.
- They may remain at one location for several hours.
- Or the relevant activity may simply not occur during the short period when the investigator is present.
This is particularly important in infidelity investigations. A client may believe that two hours on a Friday evening should be enough to determine whether a partner is meeting someone. The investigator can conduct surveillance during those two hours, but no investigator can control when the relevant activity occurs.
Even if the client’s suspicion is correct, the partner may leave later, meet the person on another day, or do nothing unusual during that particular surveillance window.
The question is therefore not only: What does surveillance cost per hour? It is also: How many hours am I realistically likely to need to answer the question I am investigating?
A lower hourly rate can still result in a more expensive investigation if substantially more hours are required.
Minimum Surveillance Blocks Can Change the Cost
Another important factor is the agency’s minimum surveillance period. Many agencies will not send an investigator into the field for a single hour.
Published Canadian examples include agencies with three-hour and four-hour minimum surveillance assignments. Some agencies also offer full-day surveillance blocks of approximately 10 hours.
Suppose an agency charges $100 per hour with a four-hour minimum. A client who wants only two hours of surveillance may still have to pay for four hours.
Now consider an investigation that requires surveillance on four separate days. If the four-hour minimum applies each time a new surveillance session begins, the minimum commitment could be 16 billable hours, even if the client originally imagined using only two hours on each day.
This is why clients should ask not only about the hourly rate, but also:
- What is your minimum surveillance block?
- Does that minimum apply separately every time surveillance is scheduled?
The answers can change the total cost considerably.
The Investigation Timeframe Matters Too
The number of surveillance hours is only one part of the equation. The period over which those hours can be used can be just as important.
Some investigations require surveillance during very specific windows.
Consider a child custody investigation. The relevant concern may involve what happens when the child stays with the other parent on weekends. Surveillance during the working week may provide little useful information. What the client actually needs is the ability to conduct surveillance during selected weekends when the child is present.
In that situation, 20 hours that can be strategically distributed across several relevant days may be much more useful than 20 hours that must be used within a short continuous period.
The same principle can apply to infidelity investigations. The highest-priority periods may be certain evenings, weekends, business trips or days when the subject’s usual routine changes.
The timeframe can also affect the total cost when an agency uses minimum surveillance blocks.
Suppose a child custody case requires two hours of observation on each of four Saturdays. The client may initially calculate that eight hours of surveillance are needed. But if the agency requires a four-hour minimum every time surveillance begins, those four Saturdays could result in a minimum of 16 billable hours.
The hourly rate has not changed. The number of actual days on which surveillance is required has changed the total cost.
When comparing surveillance services, clients should therefore consider three separate questions:
- What is the hourly cost?
- How many hours am I realistically likely to need?
- Over what timeframe can those hours be used?
Wolf Group’s surveillance-based packages define both investigative time and a period during which that time can be deployed, with flexible scheduling that can include days, evenings and weekends. Depending on the selected service, the available timeframe can extend from a single surveillance day to several weeks.
This can be particularly important when relevant surveillance opportunities occur only on specific days.
Good Information Can Help Use Surveillance Hours More Efficiently
If the client knows that the person being investigated regularly finishes work at a particular time, visits a certain location on specific days or has unexplained absences at predictable times, investigators can use that information when planning surveillance.
Consider two infidelity cases. In one case, the client knows only that their partner sometimes comes home late. In another, the client knows that the partner claims to work late every Thursday, normally leaves the office at approximately 6:00 p.m. and becomes unavailable for several hours.
The second case provides a much more specific surveillance window. It does not guarantee that useful evidence will be obtained, but it allows available investigative time to be used more strategically.
Good information at the beginning of a case can therefore help make better use of the available surveillance hours.
How Much Does an Infidelity Investigation Cost?
Infidelity investigations are closely connected to surveillance, so their cost is largely influenced by the number of surveillance hours required and the agency’s pricing model.
Using currently published Canadian surveillance rates as a general reference, even 20 hours of hourly surveillance could represent approximately $1,500 to $2,500 in investigator time alone, before separately billed mileage, travel time or other expenses where applicable. This is a simple calculation based on published rates of roughly $75 to $125 per hour, not a standard industry price or a quote for a specific investigation.
The actual investigation is usually planned around the specific behaviour and schedule of the person being observed. The longer investigation period does not necessarily mean surveillance is conducted continuously. It means the available hours can be strategically deployed during that period based on the circumstances of the case.
This distinction is important. In many infidelity investigations, timing matters more than simply accumulating hours.
How Much Does a Background Check Cost?
The term “background check” can describe very different services.
At one end of the spectrum are relatively inexpensive criminal record checks or automated screenings. Published Canadian screening prices can start at approximately $45 to $55 for certain basic criminal record checks.
At the other end are investigative background checks involving multiple areas of research, database research, cross-referencing information, identifying inconsistencies and preparing a professional report. Published Canadian private investigation pricing currently includes examples of approximately $500 to $1,100 for more extensive background investigations, while some agencies instead charge an hourly research rate.
These should not be treated as identical services simply because both are called background checks. When comparing background check prices, ask exactly what sources and areas of research are included rather than comparing the price alone.
A $50 criminal record screening and a multi-source investigative background investigation are fundamentally different products.
How Much Does It Cost to Locate Someone?
The cost of locating a person depends heavily on the information available at the beginning of the investigation.
Finding someone with a recent full name, previous address, telephone number and other identifying information is very different from locating a person who has been out of contact for many years or may be deliberately avoiding detection.
Published Canadian pricing currently includes professional locate or skip tracing services in the range of approximately $500 to $650 at some agencies. Broader skip trace and missing person investigations can vary much more significantly, with one Canadian agency publishing a range of $250 to $1,500 depending on the case.
These prices should not automatically be compared as equivalent services. A defined address locate is different from a full missing person investigation that may involve extensive research, interviews, inquiries and field investigation.
The quality and quantity of information available at the beginning of the case can also have a major impact on the amount of work required.
Can a Private Investigator Guarantee Results?
No professional private investigator can honestly guarantee a specific investigative outcome.
- An investigator cannot guarantee that surveillance will prove infidelity.
- An investigator cannot guarantee that a missing person will be located.
- An investigator cannot guarantee that a background investigation will uncover damaging information.
Investigators do not control what the subject does, what information exists or what evidence will become available.
What an investigation agency can define is the work it agrees to perform.
This may include the scope of the investigation, the investigative resources allocated to the case, the methods that can lawfully be used and the reporting of information actually obtained. This distinction matters when considering cost.
A client is paying for professional investigative work, not purchasing a predetermined conclusion.
An investigation that does not confirm a client’s suspicion is not automatically an unsuccessful investigation.
Sometimes the available evidence simply does not support what the client expected to find.
Wolf Group’s current FAQ likewise states that no legitimate investigation firm can guarantee a specific outcome, while committing to professional effort, lawful methods and reporting based on what the investigation establishes.
What Happens If an Investigation Cannot Be Meaningfully Carried Out?
This situation is different from an investigation that was properly conducted but did not produce the result the client hoped for.
Wolf Group’s Refund Policy allows a partial refund to be considered in limited circumstances where an investigation could not be substantially carried out because of uncontrollable external factors.
Examples may include serious safety concerns, legal limitations or a critical lack of actionable information that prevents meaningful investigative activity.
A lack of evidence is not the same thing. If an investigation is properly conducted and does not establish the suspected activity, that does not automatically create eligibility for a refund.
Under the current policy, eligibility also requires that the investigation was not executed in a meaningful capacity and that Wolf Group formally determines that a partial refund is appropriate. Refund requests must be made within 30 days of receiving the final report or written update, or within 90 days of payment, whichever comes first.
Clients should review the current Refund Policy before retaining investigative services if this issue is important to their decision.
Is Hiring a Private Investigator Confidential?
Private investigations often involve extremely sensitive personal, family, financial or business information. Confidentiality should therefore be part of the decision when choosing an investigation agency.
Clients should understand how their information will be handled, how communications about the investigation will take place and how reports and evidence will be delivered.
Confidentiality does not, however, give an investigator unlimited authority. A legitimate private investigator must operate within applicable law.
Hiring an investigator does not allow a client to obtain information through methods that would otherwise be unlawful. Professionalism in private investigation therefore involves both discretion and respect for legal boundaries.
Is a More Expensive Private Investigator Always Better?
No. Price is one factor, but price alone does not establish competence. A higher hourly rate does not guarantee better results, just as a lower rate does not automatically mean poor service. When comparing private investigation agencies, look at the complete picture.
- Is the agency properly licensed where the investigation will take place?
- Is the pricing structure clearly explained?
- Do you understand what is included?
- Are possible additional expenses disclosed?
- Will you receive a professional report?
- How will evidence be provided?
- How will your information be handled?
- Does the agency explain what it can realistically accomplish and what it cannot guarantee?
A professional investigator should be able to discuss these issues before you commit to an investigation.
How to Get an Accurate Private Investigator Quote
The more relevant information you can provide at the beginning, the easier it is for an investigator to assess your case.
Depending on the type of investigation, useful information may include:
- The purpose of the investigation
- The subject’s full name
- A recent photograph
- Known addresses
- Vehicle information
- Employment information
- Typical schedule
- Important dates or anticipated events
- Previous attempts to locate or investigate the person
- Relevant background information
- Any known safety concerns
You do not need to conduct your own investigation before contacting a professional. However, providing accurate information about what you already know can help the agency recommend an appropriate investigative approach instead of guessing how much work may be required.
Is Hiring a Private Investigator Worth the Cost?
Whether hiring a private investigator is worth the cost depends largely on what is at stake.
In some cases, the value is personal. Reliable information can help someone make an important decision about a relationship, family situation or future plans based on facts rather than suspicion or uncertainty. In other cases, the financial consequences can be much greater than the cost of the investigation.
Consider a family support dispute where one person claims to have little or no income but is suspected of working for cash or otherwise earning income that is not being fully disclosed. The opposite situation is also possible: a person receiving support may have undisclosed income that could be relevant to the financial issues between the parties.
A private investigator cannot determine how much child support or spousal support someone should pay, and investigative evidence does not automatically change a support order. Those are legal matters determined through the appropriate legal process.
However, lawful investigation may help document facts that contradict a person’s claimed employment status, work activity, business activity or lifestyle. That information can then be provided to the client’s lawyer and, where appropriate, used as part of a broader effort to establish the person’s true financial circumstances.
The financial value of obtaining reliable evidence can potentially be many times greater than the cost of the investigation. A person who pays thousands of dollars for an investigation may be dealing with support obligations or entitlements that continue for years. If accurate information about undisclosed income materially affects those obligations, the long-term financial difference could be tens of thousands of dollars or more.
The same principle can apply beyond family support cases. Investigations involving hidden assets, fraud, business disputes or other significant financial matters may uncover information that has a value far greater than the investigation itself.
This does not mean that every investigation will save money or produce evidence that changes a legal outcome. The better question is:
What is the potential cost of making this decision without reliable information?
When a major life decision, long-term financial obligation, child-related concern or substantial asset is involved, the cost of a professional investigation may be relatively small compared with the financial or personal consequences of not knowing the facts.
So, How Much Should You Expect to Pay?
There is no universal price for hiring a private investigator in Canada. A defined research or locate assignment may cost several hundred dollars.
Professional background investigations may range from several hundred dollars to $1,000 or more depending on their depth.
Published surveillance rates can range from approximately $75 to $125 per hour, but the hourly rate alone does not tell you what the investigation will ultimately cost.
- The number of surveillance hours matters.
- The minimum number of billable hours per session matters.
- The number of separate surveillance days matters.
- The timeframe over which those hours can be used matters.
- Mileage, travel time, parking and other expenses may matter.
The most important lesson is not to focus exclusively on an advertised hourly rate.
- Find out what that rate includes.
- Find out what it does not include.
- Ask how many hours are realistically required for your particular situation.
- Ask whether minimum surveillance blocks apply every time the investigator goes into the field.
- Ask whether the hours can be distributed across the days and timeframe that actually matter to your case.
- Ask about mileage, travel time, parking, administrative work, reports and other expenses.
- Ask whether the initial retainer represents the total budget or simply the amount required to start working.
- And compare hourly billing with package-based pricing where the scope and cost are established in advance.
At Wolf Group, many core investigation services are offered through clearly defined packages designed to make costs more predictable and reduce routine additional charges.
The objective is not to promise a particular investigative result.
No legitimate investigator can do that. The objective is to provide a clear scope of work, professional investigation, confidential handling of the case and a pricing structure the client can understand before the work begins.
Before hiring any private investigator, consider asking three final questions:
- How many hours do you realistically think my case may require?
- Over what timeframe can those hours be used?
- Based on what we have discussed, what could cause me to pay more than the amount you are quoting me today?
The answers may tell you far more about the true cost of hiring a private investigator than the advertised hourly rate alone.