What Is the Average Cost of a Private Investigation in Franklin, TN?

Paul Dillon • February 5, 2026

What Is the Average Cost of a Private Investigation in Franklin, TN?

Nothing brings clarity faster than knowing what to expect, especially when you're considering hiring a private investigator for something deeply personal or legally important. Maybe you're worried about a spouse, need evidence for child custody, or want answers to protect your business. Whatever your situation, cost is one of the first things on your mind... but few firms actually address it directly. Let's change that.

What Is the Average Cost of a Private Investigation in Franklin, TN?

A private investigator in Franklin, TN typically costs between $100 and $175 per hour, with most reputable agencies requiring a retainer ranging from $1,500 to $3,500 to begin work. The total cost of your investigation depends on a variety of factors, including the type of case, the time required to gather usable evidence, travel needs, and whether specialized tools or technology are necessary.

For example, infidelity and child custody cases, the most common reasons people seek private investigator services in Franklin, TN, usually require surveillance hours spread across multiple days or weekends when activity is most likely. It's not unusual for a full investigation by a private investigator in Franklin, Tennessee to require 15–40 billable hours, depending on how quickly patterns emerge or how often the subject changes their routine. Meanwhile, background checks or asset searches conducted by private investigators in Franklin, TN can be significantly less expensive because they require less field time and more research.

Franklin's proximity to Nashville can also influence what a private investigator in Franklin, TN might charge. Investigators may need to follow subjects into the city or surrounding counties, which can extend hours or mileage. While this may feel overwhelming at first glance, many clients discover that the value of reliable evidence, especially in court impacted scenarios, far outweighs the cost, giving them leverage, peace of mind, and clarity when making significant personal decisions.

What is a reasonable budget for a PI?

If you're planning to hire a Tennessee private investigator, a reasonable starting budget in Franklin is $2,500 to $5,500, depending on the complexity and urgency of your case. Think of this less like a flat fee and more like a flexible range... your story, schedule, and priorities influence how quickly answers come into focus.

Local insight: Why cases handled by private investigators in Franklin, TN often cost what they do

Franklin has a unique mix of suburban community rhythm and Nashville spillover. Many investigations, especially infidelity or custody cases handled by a private investigator in Tennessee, cross city lines, require evening work, or involve discreet observation around popular gathering spots and neighborhoods.

This means your private investigator in Franklin, TN needs to blend into daily life while anticipating where someone may go next. In a town where people often recognize each other, being local and strategic matters just as much as the hours logged. Pricing reflects that combination of familiarity, planning, and experience that private investigator services in Franklin, TN provide.

Is a private investigator worth the money?

In many situations, especially legal ones, yes.

A private investigation becomes "worth it" when it helps you:

  • Prepare for divorce or custody proceedings
  • Protect your parental rights
  • Verify or confirm suspicions before life changing decisions
  • Gather documentation your attorney can actually use
  • Prevent business fraud or employee misconduct

In Franklin court cases, clear evidence collected by a private investigator in Franklin, Tennessee can shift outcomes, and a seasoned Tennessee private investigator knows how to collect it legally and effectively. That clarity alone is often priceless compared to living with doubt.

How much is a PI for a day?

Daily costs vary, but most private investigators in Franklin, TN don't charge flat day rates. Instead, clients typically see 6–12 billable hours per day of active surveillance, depending on where the subject goes and how predictable their routine is.

A concentrated day of observation by a private investigator in Franklin, TN might cost $800 to $2,100, but results often come faster when surveillance is spread over key windows of time... think evenings, weekends, or commute hours.

A simple breakdown to help you plan

Cost Component

Typical Franklin Range

Hourly Rate

$100–$175/hr

Retainer

$1,500–$3,500

Mileage

Usually billed per mile

Specialized tools

Case dependent

Total Case Estimate

$2,500–$5,500+



If you're in Franklin, here's how we can help...

If you're weighing your options, clarity should come before commitment. The Dillon Agency can help you understand what your case requires... without pressure or assumptions.


If you live in Franklin or the greater Williamson County area and you'd like transparent guidance before making any decisions, reach out for a confidential consultation with private investigator services in Franklin, TN. You'll get honest pricing, realistic expectations, and space to ask every question that's been keeping you up at night. Learn more about our private investigation services here.

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