Home Emergency Line

Home › Treasure Valley, ID › Caldwell

Water damage help in Caldwell, Idaho

Updated 2026-11-09 · Numbers checked 2026-11-09 · Sources at the end

Caldwell water numbers

Danger to people, gas smell or live wires in water: call 911.

Water spraying or flooding right now?

  1. Close the main water valve. Look where the water line enters the house: garage wall, utility room, beside the water heater, or just inside the crawl space access in many older Caldwell homes.
  2. Leak at the street or meter box, or you cannot close the valve? Call the city: 208-455-3000 (option 1), or after hours 208-250-1638.
  3. Turn off the water heater (gas to "pilot", electric at the breaker).
  4. Keep out of water near outlets; cut power to wet areas from a dry spot.
  5. Photograph everything, including the crawl space if you can safely look in.
  6. Start drying right away. The U.S. EPA advises drying wet materials within 24–48 hours to help prevent mold.

Caldwell homes: what to watch for

Caldwell, the Canyon County seat, had 59,996 residents at the 2020 Census, up nearly 30% from 2010, and has kept growing. It mixes an older core with crawl-space homes and newer subdivisions, and the two fail differently.

Older homes and crawl spaces

Newer subdivisions

Winter in Caldwell

Average overnight lows at the Boise airport weather station, the closest long-term NOAA normals site, are about 24.5°F in December and 24.9°F in January (1991–2020 NOAA Climate Normals). University of Illinois research found that pipes in unheated spaces start freezing at around 20°F outside. On nights forecast near 20°F, drip faucets on outside walls, open sink cabinets and keep the heat at 55°F or higher. More: when do pipes freeze.

What it costs

National cost surveys put most water damage restoration jobs between roughly $1,300 and $6,300; drying clean water runs about $3–$4 per square foot, sewage about $7 or more, before rebuild. Details: water damage restoration cost.

Step-by-step guides

Quick answers

Who do I call for a water emergency in Caldwell?

The City of Caldwell lists 208-455-3000 (option 1) for water during business hours and an after-hours emergency line, 208-250-1638. Leaks inside the house after your main shutoff are usually the homeowner's to repair.

My older Caldwell house has a crawl space. What should I watch for?

Pipes in a vented crawl space can freeze on cold nights and leak for days unnoticed. Insulate exposed pipes, check the crawl space after hard freezes, and watch for a musty smell, a cold or soft floor or a higher water bill.

Does homeowners insurance cover a burst pipe in Caldwell?

Sudden and accidental water damage, such as a burst pipe, is commonly covered. Slow leaks, groundwater and outside flooding commonly are not, and sewer backup needs an endorsement. Your policy wording decides.

How much does water damage repair cost in Caldwell?

National cost surveys put most jobs between roughly $1,300 and $6,300. Crawl-space and sewage jobs sit at the higher end.

Sources

  1. City of Caldwell, Water Utilities Department page (main and after-hours emergency lines, checked 2026-11-09).
  2. U.S. Census Bureau, 2020 Census: Caldwell city, Idaho (59,996; 46,237 in 2010).
  3. NOAA NCEI, U.S. Climate Normals 1991–2020, Boise Air Terminal.
  4. University of Illinois Building Research Council, "An Investigation into Freezing and Bursting Water Pipes in Residential Construction" (1996). The 20°F alert threshold is as reported by the Insurance Institute for Business & Home Safety (IBHS) in its "Freezing and Bursting Pipes" guide, which is no longer online. Current IBHS freeze guidance: Winter Ready.
  5. U.S. EPA, "A Brief Guide to Mold, Moisture and Your Home".