Water Line Replacement across Vaughan

Reasons to replace a water service

• A wet patch on the lawn that stays soggy, or water weeping in through the basement wall at the point the line enters.
• Low pressure throughout the house that is not explained by a valve or a regulator.
• An old galvanized or undersized line that limits flow to a larger renovated house.
• Lead pipe. Few Vaughan homes have it, since most of the city was built after its use ended, but some older rural and village properties may.

Who owns which part

In Vaughan, as in most Ontario municipalities, the City is generally responsible for the service from the city main to the curb stop near the property line, and the owner for the part from there to the house. Confirm the current policy with the City before work begins, because if the City side is also old it may make sense to coordinate the two.

The work

After Ontario One Call locates are marked, the new line is installed either by open trench or by a trenchless method such as pulling new pipe through with a boring tool. Trenchless keeps the driveway and garden intact when the ground allows it. The new service, typically copper or a rated plastic pipe sized for the house, passes through the foundation wall, which is then sealed against groundwater. A new main shut-off goes inside, and the meter is reconnected.

Frost depth

Water services in this region must be buried below frost, and the Ontario Building Code and City standards set the minimum depth. Lines that were laid too shallow, or under a driveway where snow is cleared and frost goes deeper, can freeze in a hard winter. Replacement is the chance to correct that.

If the house is also on old galvanized supply inside, consider repiping at the same time so the improved flow reaches the fixtures. Low pressure has other sources too; our low pressure guide covers them.