Signs the line is due
A main line on the homeowner's side usually runs underground from the meter box near the street to the regulator and shutoff at the house. On a sloped lot it may climb steps, pass under a driveway or skirt retaining walls. Older homes may still have galvanized steel here, which corrodes and narrows inside, while other lines fail at joints or where roots and soil movement press on them.
Repeated leaks along the route, a meter that keeps moving with everything off, rusty water at every tap, or strong static pressure with poor flow can all point to the line itself.
Before deciding on replacement
Open trench versus trenchless
Open trench
- Dig along the route and lay new pipe
- Straightforward on open, gentle ground
- Disturbs landscaping, steps and paths
- Slopes and walls need care during and after digging
Trenchless pull or bore
- Small pits at each end instead of a full trench
- Can pass under driveways, walls and plantings
- Depends on soil, obstacles and line route
- Not every site or pipe size is a good fit
How a replacement typically goes
- Locate and plan.Mark the existing line and any other utilities, and choose a route and method.
- Permits.Ask whether a permit is needed; requirements vary, so check with the City of Fullerton.
- Install new line.Lay or pull the new pipe from the meter connection to the house.
- Reconnect at the house.Tie into the shutoff and regulator, often a good time to replace both if they are old.
- Test and inspect.Pressure-test the new line and schedule any required inspection before backfilling.
- Restore.Backfill, compact and restore slopes, steps and landscaping as agreed.
What drives the cost
| Factor | Effect |
|---|---|
| Line length and depth | More pipe and more digging or boring |
| Slope and obstacles | Walls, steps, driveways and trees add complexity |
| Method | Open trench and trenchless need different equipment |
| Pipe material and size | Affects parts and fittings |
| House-end work | New shutoff, regulator or expansion tank |
| Restoration | Hardscape and landscape repair can be significant |
Common questions
Who owns the line between the street and my house?
Generally the homeowner is responsible for the line on the house side of the meter, while the utility handles its side. Confirm details with Fullerton's water utility.
Will a new line fix low pressure?
If the old line was choked or leaking, flow usually improves. If the regulator or house piping is the restriction, those need attention too.
Can irrigation be separated at the same time?
Often yes. Ask the plumber about giving irrigation its own shutoff and any backflow requirements, and check with the city.
General information for Coyote Hills, not a quote or professional advice. In an emergency, call 911.