# Water Line Replacement in Columbus, Ohio

> Columbus water line replacement: the buried service line from the curb to the meter, City licensing and Type K copper rules, trenching options and inspection.

URL: https://slaterepipingcolumbus.com/water-line-replacement/

The buried service line from the curb stop to the inside meter, replaced in copper under the City's water service rules, with the trench, the frost depth and the inspection planned before digging.

Last Updated: October 29, 2026

The buried service line from the curb stop to the inside meter, replaced in copper under the City's water service rules, with the trench, the frost depth and the inspection planned before digging.

Last Updated: October 29, 2026

**32 in** Frost line depth Building and Zoning Services sets for the Columbus jurisdiction, the minimum the new line is buried below

**Type K** Soft copper the City requires for 2-inch and smaller service pipe from the main through the curb stop

**1963** December 1963 is when Columbus stopped allowing new lead or galvanized service lines

**31.0%** Share of Grandview Heights service lines in the City's inventory with galvanized pipe on the customer side

[Slate Repiping Columbus](https://slaterepipingcolumbus.com/) offers and manages water line replacement for houses across Columbus and nearby Franklin County communities. This page is about the buried service line: the pipe that runs underground from the curb stop near the street, through the foundation, to the water meter in the basement. It is a different job from replacing the pipe inside the house, which is what a [whole-house repipe](https://slaterepipingcolumbus.com/whole-house-repiping/) does. The work is carried out by licensed and insured plumbing contractors, and work on the City service pipe is done by contractors holding the City of Columbus water contractor license.

A service line usually gets attention for one of three reasons. Water is coming up in the yard or through the basement wall. Flow at every fixture is poor even though the inside pipe has been checked. Or a notice from the water utility says the line is lead or galvanized. Each of those starts in a different place, and the first job is working out which one applies.

## What the service line is, and who owns which part

The City’s service line inventory splits every line into a utility side and a customer side, and the City’s loan paperwork describes the private side as running from the curb stop to the meter. The curb stop is the buried valve near the property line; the meter, in most Columbus houses, sits inside the basement near the point where the line comes through the wall. The City’s customer notices say the owner’s service line is usually found there, next to the inside meter.

That split decides who pays for what. Under the City’s lead service line program, a leak on the private side before scheduled construction reaches the street is the owner’s responsibility. Some Columbus owners have reported being told a leak near the main connection was theirs to fix, so the location of a leak matters before anyone starts digging.

Outside the city the arrangement changes. Bexley buys water from Columbus through master meters, and Columbus does not bill or maintain Bexley’s lines. Gahanna, Reynoldsburg and Obetz are also master-meter communities, and Westerville runs its own water plant and system. In those places the division between the city’s part and the owner’s part, and the rules for the new pipe, are confirmed per address with the city that supplies the water.

## Signs a service line needs replacing

None of these proves the service line is the cause on its own, so each one gets checked against the rest of the system.

- **Low flow everywhere.** If every faucet is weak, including the one nearest the meter, the restriction may be upstream of the house piping. A galvanized service line closes up from the inside the same way galvanized house pipe does. The [low water pressure page](https://slaterepipingcolumbus.com/low-water-pressure/) covers the other causes: a half-closed valve, a failing pressure-reducing valve, clogged aerators.
- **Wet ground or a damp foundation wall.** A soft patch of lawn along the line or a wet spot where the pipe comes through the wall can point to a leak in the buried run. A leak inside the house can look similar, which is why a [plumber for water leaks](https://slaterepipingcolumbus.com/plumber-for-water-leaks/) or [water leak detection](https://slaterepipingcolumbus.com/water-leak-detection/) sometimes comes first.
- **A material notice.** The City sends annual notices to owners whose line is listed as lead or galvanized. The notice is about the pipe material, not a test result for that house.
- **Galvanized at the meter.** Gray threaded pipe coming through the wall before the meter usually means the service line is galvanized too. The [guide to identifying pipe material](https://slaterepipingcolumbus.com/guide/how-to-identify-pipe-material/) shows the magnet and scratch checks.

Columbus has not allowed new lead or galvanized service lines since December 1963, so a house built later is unlikely to have one unless records say otherwise. Houses built before then often do. The City’s inventory shows 31.0% of Grandview Heights service lines with galvanized pipe on the customer side, and more than 20% across the 43204, 43205 and 43206 ZIP areas.

## If the line breaks

A service line that breaks can flood a basement or a yard in a short time. Close the main shutoff inside the house, usually next to the meter where the line comes through the wall. If that valve will not close, or the leak is between the curb stop and the shutoff, the water utility can close the curb stop. Turn off power or gas to the water heater if the house has lost water. Emergency calls for a water line break are answered 24 hours a day, seven days a week, and the [emergency pipe repair](https://slaterepipingcolumbus.com/emergency-pipe-repair/) page covers what happens next.

## Repair or replace

A single leak on a copper or plastic line in sound condition can sometimes be repaired at one point. A lead line is different: City code declares lead and galvanized-requiring-replacement service lines a public nuisance and prohibits repairing a lead service line, so a leak on one means replacement or joining the City’s program. A galvanized line that is leaking is usually corroded along its length, and a patch at one joint tends to move the next leak a few feet down the pipe.

If the line is lead or galvanized, check the City’s program before hiring anyone. The [Columbus lead service line program guide](https://slaterepipingcolumbus.com/guide/columbus-lead-service-line-program/) explains when the City replaces lines at no direct cost to the owner, and the [lead service line replacement](https://slaterepipingcolumbus.com/lead-service-line-replacement/) page covers when owners hire their own contractor instead.

## How a service line is replaced

The new line in Columbus follows the City’s material rules: 2-inch and smaller service pipe is Type K soft copper from the main through the curb stop, and Type K copper or approved poly tubing from the curb stop through the meter setting. If an old tap at the main turns out to be lead or galvanized, the City’s rules say it is abandoned at the main rather than reused.

There are two general ways to get the new pipe from the curb to the house.

### Open trench

A trench is dug along the route from the curb stop to the foundation, the old line is exposed, and the new line is laid in the bottom. The trench has to reach below the 32-inch frost line Building and Zoning Services sets for Columbus, and deep trenches are a safety matter: soil can collapse, so the trench is sloped, shored or kept short. An open trench lets the whole route be seen, which helps where the old line bends or meets other utilities.

### Pulling or boring the new line

Where a driveway, a mature tree, a sidewalk or a long lawn sits on the route, the new line can often be pulled or bored underground between two pits: one at the curb stop and one at the foundation. This is sometimes called trenchless, but it still means digging: the pits have to be opened, the curb stop exposed and the foundation entry cut. Rock, other utilities and old pipe that will not pull can change the method partway through.

In both cases utilities are located before any digging. The new line comes through a fresh, sealed opening in the foundation, connects to the meter setting, and is tested before the ground is closed. Restoration is listed in writing: whether the trench gets topsoil and seed, and who patches a sidewalk or driveway cut.

## Licensing, permit and inspection

Work on the City water service, including service lines and taps, requires a City of Columbus water contractor license or combined water and sewer contractor license. That is a separate credential from the State plumbing contractor license and City registration needed for the inside pipe. Building and Zoning Services inspects water service lines from the meter to the building’s distribution system under a Water Service Installation permit, which carries a Water Service Plan number from Public Utilities and is issued only to registered contractors approved for that work. The [Columbus repiping permit guide](https://slaterepipingcolumbus.com/guide/repiping-permit-columbus/) explains how that differs from an interior plumbing permit.

## When the inside pipe is also old

A new service line ends at the meter. If the house beyond it is still on galvanized pipe, the flow problem can move inside rather than disappear, and [rusty water](https://slaterepipingcolumbus.com/guide/rusty-water-from-pipes/) can keep coming from the old pipe. A house that needs both jobs can plan them together so the basement connection is made once: a [galvanized pipe replacement](https://slaterepipingcolumbus.com/galvanized-pipe-replacement/) starts at the main shutoff where the service line ends. The [cost guide for lead service line replacement](https://slaterepipingcolumbus.com/guide/lead-service-line-replacement-cost/) covers what moves the price of the outside work, and [whether galvanized pipes are safe](https://slaterepipingcolumbus.com/guide/are-galvanized-pipes-safe/) covers the inside.

## What drives the price

There is no public price for service line replacement outside the City’s own figure for lead lines. The cost depends on the length of the run from the curb stop to the foundation, how deep the line sits, what the route crosses, whether the method is a trench or a pull between pits, how much sidewalk, driveway or landscaping has to be restored, and what the meter setting and the foundation entry need. A written scope lists each of those before work starts.

## What's included

- Locating the curb stop, the entry point at the foundation and the inside meter
- Underground utility locates before the trench or pits are opened
- The new service line from the curb stop to the meter setting in the material the City requires
- A new foundation penetration, sealed, where the line enters the house
- Reconnection at the meter and the main shutoff inside the house
- The Water Service Installation permit and its inspections
- Backfill and a written list of what surface restoration is included
- The old line abandoned, or removed where it comes out with the trench

## Three ways a Columbus service line problem gets handled

|  | Spot repair | Owner-arranged replacement | City program replacement |
| --- | --- | --- | --- |
| What it fixes | One leak at one point | The whole private side, curb stop to meter | Lead or galvanized lines, public and private side |
| Allowed on lead line? | No: City code prohibits repairing a lead service line | Yes | Yes |
| Who does the work | A City-licensed water contractor | A City-licensed water contractor the owner hires | The City's own contractor |
| Timing | When the leak is found | When the owner schedules it | When the program reaches the street |
| Who pays | The owner | The owner, or a LEAP loan for lead or galvanized lines | The City intends to cover it while funding lasts |

## Related resources

- Learn [How does the Columbus lead service line replacement program work?](https://slaterepipingcolumbus.com/guide/columbus-lead-service-line-program/)What the City replaces, when it reaches a street, who has to sign, how to check an address on the map, and how to time an interior repipe so the house is opened once.
- Cost Guide [How much does lead service line replacement cost in Columbus?](https://slaterepipingcolumbus.com/guide/lead-service-line-replacement-cost/)The City's own figure for replacing a line outside its schedule, the site conditions that push a job up or down, and the programs that can bring an owner's cost to zero or spread it out.
- Learn [Are galvanized pipes safe for drinking water?](https://slaterepipingcolumbus.com/guide/are-galvanized-pipes-safe/)Galvanized steel is not a lead pipe, but it can collect lead from one. Here is how that happens, why federal rules now treat some galvanized lines as replace-required, and what old steel does to flow and water color.
- Learn [Do you need a permit to repipe a house in Columbus?](https://slaterepipingcolumbus.com/guide/repiping-permit-columbus/)Which office issues the permit for your address, who is allowed to pull it, what it costs, what changed with county plan review in February 2026, and what happens when a repipe is done without one.

## How a repipe runs

1. First call Describe the houseIts age, the pipe you can see in the basement, the leaks so far and which floors lose pressure.
2. Walk through Map and scopeMains, branches, shutoffs and fixtures traced from the meter; material, openings and permit agreed in writing.
3. Pipe day Replace and reconnectWater shut off in stages, new lines run, fixtures and the water heater reconnected.
4. Sign off Test, inspect, patchPressure test and flush, permit inspections, then the openings are closed.

## What this work looks like

Coil of soft copper service pipe being laid along a narrow trench across a front lawn, in a Columbus house

Small pit beside a sidewalk exposing a curb valve box and an old service pipe, in a Columbus house

New copper service pipe entering through a sealed hole in a basement wall and connecting to a water meter, in a Columbus house

Old rusted galvanized service pipe lying on the grass beside a backfilled trench, in a Columbus house

## Water line replacement questions

### Who pays to fix a leak on my side of the Columbus water service line?

The owner does. The City's lead service line program says leaks on the private side are the owner's responsibility until its scheduled construction reaches the street. If the line is lead or galvanized, the City's LEAP program offers a 0% deferred loan up to $10,000 toward replacing it with a contractor the owner chooses.

### Can any plumber replace the water line to my house in Columbus?

No. Work on the City water service, including service lines and taps, requires a City of Columbus water contractor license or a combined water and sewer contractor license, in addition to the plumbing licensing the State of Ohio requires. The contractors who carry out this work hold the City of Columbus water contractor license.

### How deep does a new water service line have to be in Columbus?

Below the frost line. Building and Zoning Services sets the frost line depth at 32 inches for the Columbus jurisdiction, so the new line is buried deeper than that along its whole run, including where it turns up through the foundation wall.

### Is the water line to a Bexley or Westerville house handled the same way?

Not exactly. Bexley buys water from Columbus through master meters and runs its own service line inventory and loan program, and Westerville runs its own water system. Ownership, material rules and permits for those lines are confirmed per address with the city that supplies the water.

## Related services

### Lead service line replacement

Replacing a lead or galvanized service line in copper when the City's street-by-street program is not the right fit: a leak now, a street years out, a suburb with its own system, or a LEAP-funded job.

### Galvanized pipe replacement

Old threaded steel water pipe inside the house replaced with PEX or copper, with the transitions, the loosened scale and the flush handled as part of the job.

### Low water pressure

Weak flow traced from the service line and meter to each fixture, so the fix matches the cause: a valve, a PRV, an aerator, the water heater, a scaled branch or the service line.