Chatsworth plumbing for ranch lots and hillside homes (91311)

Chatsworth fills the northwest corner of the San Fernando Valley, backed by the Santa Susana Mountains and the rocky Simi Hills, with Porter Ranch just to the east. The 118 freeway crosses the north end, and Topanga Canyon Boulevard and Devonshire Street carry most of the traffic. Some streets have standard tract lots, while others hold equestrian properties with barns, arenas and long driveways.

Larger lots change how plumbing fails. A main water line from the street meter to the house can run a long distance, and a leak along it may never surface. Gas lines feed pool heaters, barns, guest houses and outdoor kitchens across wide yards. Homes near the hills and canyons also sit in wildfire areas, so outdoor spigots need to work when you need them.

The first clue is usually the water bill. A second clue is the meter: with every fixture off, the leak indicator on the LADWP meter keeps spinning. If the house itself checks dry, the leak is likely between the meter and the house, somewhere along a line that may run under driveways, lawns and paddocks.

We close the main at the house valve to confirm, then use acoustic equipment along the route to locate the leak. On a short run, a single repair may be enough. On an old galvanized or thin copper line, another leak usually follows within months, and replacing the full run is the better spend. A new main typically costs about $2,500 to $7,000 depending on length, depth and what it crosses, a typical range and not a quote.

Wildfire season adds another reason to keep exterior lines sound. Working hose bibs around the house and outbuildings, a clear path to the main shutoff and a gas wrench kept by the meter all help during an evacuation. If earthquakes are also on your mind, our guide to automatic gas shutoffs explains how they work.