Why multifamily leaks travel so far

Aurora has a very large stock of apartments, condos and townhome rows, from garden-style complexes built in the 1970s and 1980s to newer mid-rise buildings near the light rail stations and the medical campus. In stacked buildings, kitchens and bathrooms usually line up floor over floor and share vertical plumbing chases. When a supply line or toilet fails upstairs, those chases act like drainpipes and carry water into units nowhere near the leak.

In garden-style buildings, water seeps through the subfloor seams of wood-framed floors and runs along the joists before it drips out at a light fixture or ceiling seam. In concrete mid-rise buildings, it may pool on the slab and travel to a pipe sleeve or other penetration before it shows up below. Either way, the first unit to notice is often not the one where it started.

Who usually handles what

General patterns only. Leases, HOA declarations and policies vary, so read the documents for your building.
PartyUsually responsible forInsurance often involved
Apartment landlord or ownerBuilding structure, common areas, drywall and built-in flooring in rentalsThe owner's commercial property policy
Apartment renterPersonal belongings, and possibly extra living costsA renter's policy, if the tenant has one
Condo HOACommon elements as the declaration defines them, often structure and shared pipesThe association's master policy
Condo unit ownerInterior finishes and contents, depending on where the declaration draws the lineA unit owner policy, often called HO-6
Unit where the leak startedPossibly damage to others, if negligence is shownThat owner's or renter's liability coverage

Getting every affected unit handled

  1. Stop the source and trace it

    Maintenance shuts off the unit valve or the riser. Someone checks every unit directly below and to the sides, not just the one that called about a drip.

  2. Get into each unit

    Managers follow the notice rules for entry, and in an emergency many leases and declarations allow immediate entry. Keep a log of who entered which unit and when.

  3. Extract and open up where needed

    Crews remove standing water in each unit. Wet ceiling drywall below the leak gets checked for sagging and may be opened to drain and dry the cavity.

  4. Document each unit separately

    Photos, moisture maps and equipment counts stay unit by unit, so the HOA, the owner and each tenant's insurer see only their share of the loss.

  5. Track drying in each unit

    Units dry at different speeds. One may be finished while another still needs dehumidifiers.

Questions to ask if water came through your ceiling

  1. Which unit did the water come from, and has the source been stopped?
  2. Is the building owner or HOA sending someone to extract and dry my unit, or should I arrange it?
  3. Will the drying equipment in my unit be documented under my unit number?
  4. Who do I contact about my belongings, and should I file with my own insurer?
  5. If the water came from a toilet or drain, how will my unit be cleaned and sanitized?

General information for Aurora, not a quote or professional advice. In an emergency, call 911.