Water Service Line Repair and Replacement

Your main water service line is the underground pipe that conveys pressurized potable water from the municipal water main in the street into your home water meter. In Ansonia, Derby, and Shelton, the water utility (Aquarion Water Company) maintains the water main and the street shutoff valve known as the curb stop. The property owner owns and is responsible for the entire service pipe from the curb stop into the basement.

Many vintage homes still rely on original lead, galvanized iron, or thin-walled copper service lines buried deep beneath front yards. Over decades, frost heave, acidic soils, and high pressure cause these buried pipes to corrode and rupture.

Because the service line is buried four to five feet below grade beneath Connecticut frost depth, leaks do not always create geysers. Common signs include a sudden, dramatic drop in household water pressure, the sound of water hissing continuously near the basement water meter, soggy or sunken areas on your front lawn, or water seeping through stone foundation walls along the pipe entrance.

Digging a five-foot-deep trench across an entire front yard destroys lawns, sidewalks, paved driveways, and mature landscaping. Wherever soil conditions permit, we deploy trenchless pipe pulling or pneumatic piercing tool technology.

We dig only two small access excavations: one at the street curb box and one inside the basement or foundation wall. A high-tensile steel cable is threaded through the old damaged pipe, attaching a heavy-duty continuous joint-free Type K copper or 200 PSI CTS polyethylene service line. As the old pipe is pulled out or split, the new service line is drawn smoothly into place, completing the replacement in hours with minimal yard disruption.

Replacing a main water service line requires formal coordination with Aquarion Water Company to operate the municipal curb stop valve and verify meter settings. We file all required plumbing permits with the Ansonia Building Department, pressure-test the new line to exceed state building code specifications, and ensure foundation wall penetrations are sealed with hydraulic cement.

Under Aquarion Water Company regulations and Connecticut utility guidelines, property owners are responsible for maintaining and repairing the entire water service line running from the curb stop valve at the property boundary into the home water meter.

Vintage service lines installed prior to 1960 often consist of lead pipe, galvanized iron, or thin-wall soft copper. Over decades of ground settlement and frost action, these lines develop leaks, reduce flow, or leech metallic particulates into drinking water.

Replacing a service line does not require excavating an open trench across your lawn, driveway, and landscaping. Wherever soil conditions permit, we deploy trenchless horizontal pipe pulling technology.

We excavate two small access pits: one at the curb stop and one at the basement foundation penetration. A high-tensile steel cable is passed through the old pipe, attached to a joint-free continuous run of Type K soft copper or 200 PSI CTS polyethylene tubing, and pulled smoothly into place in a single day.

When a new Type K copper or 200 PSI CTS polyethylene service line enters a home through an older stone or concrete foundation wall, proper hydrostatic sealing is essential. Soil movement and freeze-thaw cycles can allow exterior groundwater to seep around unsealed pipe sleeves.

We install heavy-duty link-seal modular rubber seals or pack foundation penetrations with non-shrink hydraulic cement and elastomeric waterproofing sealants, preventing cellar water infiltration during severe rainstorms.