Layouts that send water downward

Two-story houses commonly put bedrooms and often the laundry upstairs, with the kitchen and living space below. A water heater may be in a garage, a basement or a closet. Whichever it is, an upstairs appliance leak has farther to travel and more places to hide, such as floor joist bays, light fixture openings and wall cavities.

The Ralston Valley area of Arvada has a mix of housing, so this page speaks about layouts, not about any particular street.

Upstairs versus ground-floor appliances

Upstairs laundryGround-floor kitchen and utility
Water falls into ceilings and fixturesWater spreads across floors and under cabinets
Leaks may go unnoticed while the house is emptyA basement or crawl space may lie below
Floor drain pans may be installedCabinet cavities trap water
Drying often involves ceiling openingsDrying involves toe-kicks and subfloor checks

What a typical check route looks like

Upstairs laundry
Valves, hoses, pan, sensor, floor edge.
Ceiling below
Stains, bubbling, light fixtures.
Kitchen
Dishwasher, fridge line, sink base.
Garage or basement
Water heater, pan, drain line.

Checklist for a two-story home

  • Laundry valves reachable without moving the washer
  • Pan and sensor in the upstairs laundry
  • Ceiling below checked for stains each season
  • Water heater age recorded
  • Main shutoff location known to all adults
  • Kitchen sink base and dishwasher checked

Local planning notes

Confirm with the city or water provider that serves your address how to reach them for service questions, and ask any contractor to confirm in writing that they work at your address. This page does not list any company as available.

Think about the sound of the house, too. In a two-story, a washer running upstairs is audible downstairs, and a change in that sound, such as water running when the washer is idle, is a clue. A habit of listening for unexpected running water when the house is quiet is free and useful. If you hear it, check the laundry valves first, then the water heater, then the main.

Finally, keep a list of what is directly below each upstairs appliance: which room, which fixtures and which belongings. In a leak, knowing that the dining room light is under the washer tells you at once which ceiling to watch.

Photograph the ceiling under the laundry in a normal state this season, so any later stain can be compared with it.

Map of Ralston Valley. It shows an area, not an office or a job site.

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