Most people calling a private investigator for the first time have the same two questions: what will this cost, and am I about to get stuck in an open ended bill? This is a straight answer to both, written for clients in Northern Virginia.
The Three Factors That Determine Cost
Private investigator pricing has fewer moving parts than people expect. In Northern Virginia, almost every quoted price is a function of these three inputs:
| Factor | What It Means |
|---|---|
| Number of Investigators | A simple surveillance in a residential neighborhood often needs one investigator. A subject who drives aggressively, lives on a multi exit property, or travels through Washington DC traffic may need two. A complex case with multiple simultaneous subjects (for example, tracking both a spouse and the third party) may need three. |
| Hours of Active Field Work | A focused infidelity investigation around a known window (a business trip, a standing Tuesday night pattern) can take 8 to 20 field hours. A case where we are still identifying the pattern runs longer. Surveillance days typically run 6 to 10 hours each. |
| Distance From Fairfax | Cases within Fairfax, Arlington, Alexandria, and inner Loudoun County carry no travel premium. Cases that reach into Prince William, Fauquier, or out of state add drive time. Out of town surveillance during a subject’s travel is quoted case by case. |
Flat Rate vs Hourly: Why the Model Matters
Most private investigator firms charge hourly, often with a required retainer of 10, 20, or 40 hours upfront. That model creates an incentive problem: the firm makes more money the longer the case runs, and the client has no visibility into whether the hours being billed are actually productive.
PLRG operates on flat rate pricing. Before field work begins, we agree with you on what the investigation will cover, how many days it should take, and what the total will be. That structure aligns the incentives. Our job is to produce the evidence efficiently, not to stretch the case.
What flat rate means in practice: If we quote a three day surveillance at a set price and the subject does nothing interesting on day two, you do not get billed for a fourth day we never agreed to. If the pattern emerges earlier than expected and we close the case in two days, we tell you.
Typical Case Ranges
Exact pricing is always case specific, but here is how Northern Virginia infidelity investigations generally range:
What Is (and Is Not) Included
A PLRG flat rate for a Northern Virginia infidelity case includes:
- All field hours quoted in the plan
- All professional photo and video evidence, preserved with metadata intact
- A professional written report at the conclusion
- Mileage within the quoted service area
- Secure evidence storage for the duration of your engagement
- Attorney coordination if you have counsel
What is typically billed separately only when applicable:
- Significant out of town travel during subject’s unexpected trips (quoted before we go)
- Court testimony time if the case proceeds to hearing
- Subpoena responses, expert witness preparation, or other post investigation services
Red Flags in Private Investigator Pricing
When you are comparing quotes from Northern Virginia PI firms, watch for these warning signs:
How to Get an Accurate Quote
The more specific information you can share during the initial consultation, the more accurate the quote. Helpful details include:
- Specific windows where you suspect the conduct happens (Tuesday evenings, business trips, etc.)
- The subject’s vehicle, home address, and place of work
- Whether a third party has been identified
- Whether you already have counsel, and what your attorney needs the evidence to support
- Your goals: peace of mind, divorce filing, custody proceeding, or something else
Sharing this during the first call lets us propose a plan that fits the actual situation instead of quoting for a generic worst case.
Get a Real Quote
Every conversation with PLRG is confidential, and the initial consultation is free. You will speak with a licensed investigator who can ask the right questions and produce a clear flat rate quote, often in the same call.
