A single burst pipe can flood multiple units and cost thousands. Here is how Chicago landlords and property managers winterize plumbing in fall, before the first hard freeze arrives.
Of all the things that can go wrong in a Chicago rental building over winter, a burst pipe is near the top for sheer expense and disruption. Water expands as it freezes, and the pressure it creates inside a closed pipe can split copper, crack fittings, or blow apart a supply line. The pipe itself rarely bursts on the coldest night; it bursts when it thaws and water surges through the failure point, often while no one is watching.
When that happens in a two-flat in Ravenswood or a mid-rise in Lakeview, a single break can send water through ceilings and walls into every unit below. You are then looking at water damage, mold remediation, displaced tenants, and an insurance claim, all from a repair that would have cost almost nothing to prevent in September. Getting ahead of it in fall is the single best-value plumbing decision a property owner makes all year.
Frozen pipes are a location problem before they are a temperature problem. The failures almost always happen in the same handful of cold spots. In Chicago's older greystones and vintage two-flats, that means pipes running through uninsulated exterior walls, unheated crawl spaces, and the joist bays above a cold basement.
Garden and basement units are especially exposed, because supply lines often run close to grade where the ground freezes. Vacant units are the other classic trap: an empty apartment in Rogers Park with the heat turned down to save money is exactly where a line quietly freezes and lets go. Walk your building now and note every pipe that runs along an outside wall, sits in an unheated space, or serves a hose bib, laundry hookup, or a unit that may sit empty. Those are the spots that need attention before the lake-effect cold sets in.
Exterior plumbing is the easiest win and the one landlords most often skip. Every outdoor hose bib, garden spigot, and irrigation line needs to be drained before the first freeze. Disconnect and store all hoses first; a hose left attached traps water against the valve and is a leading cause of split faucets and burst supply lines behind the wall.
For each exterior faucet, close the interior shutoff valve that feeds it, then open the outside spigot to let the remaining water drain out. Frost-free sillcocks still fail when a hose is left on, so do not assume they are safe. If your building in Andersonville or Lincoln Park has an in-ground irrigation system, have it blown out with compressed air and the backflow preventer drained. Cover exposed hose bibs with inexpensive insulated faucet caps as a final layer of protection.
Contact Lena Services INC at 773-939-4284 or [email protected]