
Sewer Line Locating in Naples, FL
Know exactly where your line runs before you dig. We connect you with a licensed local pro who locates it precisely, not roughly.
What Sewer Line Locating Actually Involves
Calling 811 before you dig is standard practice, and it's genuinely important. But 811 only marks utility-owned infrastructure, the water, gas, and electric lines that belong to a utility company. It does not mark your private sewer line or septic lateral. That's your responsibility to locate.
Locating uses the same sonde technology used during a camera inspection, a small transmitter fed through the line that can be tracked from the surface with a receiver, letting a technician mark precisely where the line runs and how deep it sits.
This matters most before any digging, landscaping, pool installation, or construction near where a line might run.
When You Need Sewer Line Locating
You're planning a pool installation
You're doing major landscaping or hardscaping
You're planning an addition or new construction near where the line might run
You don't have documentation of where your line runs and want to know before you commit to a project
811 marking your utility lines doesn't mean your private sewer or septic line is marked too. If a project involves digging anywhere near your home, that's worth confirming before you start.
How Sewer Line Locating Works
Access the Line
A sonde-equipped camera is fed into the line through an existing cleanout or accessible entry point.
Track From the Surface
A receiver traces the transmitter's exact position, marking the line's path at ground level.
Mark the Depth and Path
The line's route and approximate depth get marked clearly enough for a contractor or landscaper to work around safely.
Documentation
You get a record of the line's path, useful for this project and any future digging near your property.
Why This Comes Up Here
Pool installations are extremely common throughout the Naples area, from established downtown properties to newer construction in Lely and beyond, and a pool excavation running through an unmarked private sewer line is exactly the kind of expensive surprise this service exists to prevent.
Collier County's own stormwater ordinance requires open-channel drainage in many applications rather than enclosed piping, which makes accurate underground locating even more relevant here when planning any digging project, since assumptions about what's underground can be wrong in more than one direction.
What Sewer Line Locating Typically Costs
Locating uses the same sonde equipment and process as a camera inspection, so pricing tracks closely with that service, typically $230 to $400 for a straightforward locating visit through an accessible cleanout. If a full diagnostic inspection is wanted at the same time, cost runs toward the broader camera inspection range.
These are typical ranges, not a quote. Your actual cost depends on line length, access, and whether a full inspection is included.
Example Job — Lely
The Problem
A homeowner in Lely planning a new pool installation called 811 before digging, standard practice, and was told 811 only marks utility-owned lines, not the home's private sewer line running through the yard.
The Diagnosis
A sonde-equipped locating service traced the exact path and depth of the home's private sewer line, revealing it ran several feet from where the homeowner had assumed, directly through the planned pool excavation footprint.
The Fix
With the line's exact path marked at the surface, the pool contractor adjusted the excavation plan to avoid it entirely. No line damage, no repair needed.
Recurrence Prevention
The homeowner was given a documented record of the line's path for any future landscaping or construction project on the property.

Sonde-based locating revealing a private sewer line's exact path ahead of a planned pool installation
| Item | Cost |
|---|---|
| Sewer line locating (sonde-based) | $230–$400 |
| Total | $230–$400 |
This reflects a typical straightforward locating visit, not a quote. A free estimate from your connected professional will confirm exact pricing for your property.
Why Naples Homeowners Call Us
We Know What 811 Doesn't Cover
We connect you with pros who make sure your private line gets located too.
Licensed and Verifiable
Every pro in our network is licensed for this work in Florida. You can check any contractor at myfloridalicense.com before work starts.
Precise, Not Approximate
We connect you with pros using real sonde-based locating, not a guess based on old plans.
Documentation You Keep
A record of your line's path for this project and any future one.