How to Prevent Frozen Pipes in Bend This Winter
Every Bend winter brings a stretch of nights cold enough to split copper. The first warm afternoon after that stretch is when the phones at local restoration companies start ringing, because a frozen pipe rarely leaks while it is frozen. It leaks on the thaw. This guide covers how cold it actually gets here, what Bend Fire & Rescue and the local water utilities tell residents to do, and what to do if you find water already on the floor.
How cold does Bend get in January?
Bend sits at roughly 3,600 feet in a cool semi-arid climate. The 1991–2020 normals put the average January daily low at 24.6°F, and the all-time record low is −26°F. Averages hide the problem. Most winters include at least one arctic push that drops the thermometer into single digits or below zero for several days. In January 2024 Bend Fire & Rescue issued a frozen-pipe warning ahead of a forecast high of 12°F and low of 5°F, and the storm that followed brought up to two feet of snow, freezing rain and sub-zero readings across the region. In February 2025 the department and the National Weather Service in Pendleton were again warning residents and businesses ahead of single-digit lows.
Higher and colder neighbors fare worse. Sunriver's average January low is 19.6°F with a record of −27°F, and La Pine, Prineville and Madras all hold records well below −30°F. If you own in the south county or east of Bend, assume a colder night than the Bend forecast shows.
Why do pipes freeze and burst?
Water expands about nine percent as it freezes. In a closed pipe, the ice plug itself usually is not what splits the wall. The pressure trapped between the plug and a closed faucet is. That is why pipes in crawl spaces, garages, exterior walls and unheated additions fail first: they lose heat fastest and they are often on long runs with nothing open downstream. It is also why an open faucet works. A trickle relieves pressure as ice forms, so even a partly frozen line has somewhere to push.
Local restoration companies describe the same pattern every year: lines in crawl spaces and exterior walls freeze overnight and let go the next afternoon, often while nobody is home, and Bend's dry air can make the mess look smaller than it is because surfaces dry on top while the framing stays wet underneath. Hidden water in a wall or under a floor is the expensive part, which is why a professional moisture check matters after any burst.
How do I keep pipes from freezing in Bend?
The tips below are the ones Bend Fire & Rescue and the Bulletin repeat each cold snap. None of them cost much.
- Hold the thermostat near 70°F during an arctic stretch, day and night. Setbacks save a few dollars and risk a few thousand.
- Drip the faucets farthest from where water enters the house, hot and cold. A pencil-lead stream is enough. It is the single most effective step on a sub-zero night.
- Open cabinet doors under kitchen and bathroom sinks, especially on exterior walls, so room heat reaches the supply lines.
- Disconnect hoses from outdoor spigots and shut off and drain interior valves to hose bibs where they exist.
- Close crawl-space vents for the winter if your home has them and check that any crawl-space access door seals.
- Insulate exposed runs in the garage, crawl space and attic with foam sleeves. Heat tape rated for the purpose works on short stubborn sections; follow the listing and do not overlap it.
- Leave the snow on the meter box. Avion Water, which serves much of the area around Bend, advised customers during the February 2025 cold snap to leave snow in place over water meter boxes because it insulates the meter and service line. Do not shovel it off.
- Know where the main shutoff is and make sure it turns. Find it in daylight in October, not by flashlight in January.
Businesses get one more item from Bend Fire: have fire sprinkler systems serviced before the cold, because a frozen sprinkler line fails exactly like a domestic one and dumps far more water.
What should I do if I'm leaving town?
This is where Central Oregon differs from most of the country. A large share of homes in Sunriver, Sisters and La Pine sit empty for weeks at a time, and Bend residents leave for the holidays like everyone else. An empty house can run water for days before anyone notices.
Before you lock the door
Shut the main and drain the system if the house will be empty for more than a few days in winter. Open the lowest faucet and a high one so the lines empty. If you would rather keep the water on, leave heat at 55°F or higher, open cabinets, and ask someone to walk through every two or three days. Wi-Fi leak sensors under the water heater, washer and each sink cost little and will text you. Some insurers require one of these steps for freeze coverage on an unoccupied home, so read the policy before you go.
Second-home owners should also know that many policies treat a house as "vacant" after a set number of consecutive empty days and cut coverage accordingly. The vacation-home freeze page covers what happens when a pipe lets go in an unattended house and how the restoration companies approach it.
What if a pipe is already frozen?
If a faucet gives nothing or a trickle on a cold morning, act before the thaw does it for you.
Open the faucet
Leave it open. Flow will tell you when the plug has cleared, and the open tap relieves pressure as the ice melts.
Find the cold section
Follow the line toward the exterior wall or crawl space. Frost on the pipe or a section colder than the rest is the spot.
Warm it gently
A hair dryer, a heating pad, towels soaked in hot water, or simply raising room heat and opening a cabinet. Start at the faucet end and work back toward the ice. Never use a torch, a heat gun on high, or any open flame near framing.
Check for cracks
As it thaws, watch the pipe. If water appears anywhere along the run, shut the main immediately. A split that is leaking slowly now will pour once the line is fully clear.
Call a plumber if you cannot find it
A frozen section inside a wall is a plumber's job. Keep the faucet open and the main accessible until they arrive.
What if it already burst?
Shut the main first. Then kill power to any wet rooms at the breaker if outlets or cords are in the water. Move what you can off the floor, photograph everything, and call. A plumber fixes the pipe; a restoration company extracts the water and dries the structure, and the two usually work in parallel. Water that has run for hours is in the subfloor, the bottom plates of the walls and the insulation, and household fans will not get it out. Mold can start in wet framing within a day or two, so the drying call is not one to postpone until Monday.
Oregon's CCB requires at least a Residential Restoration Contractor endorsement for water removal after a sudden loss, and a general or specialty endorsement for any tear-out of drywall or flooring. Anyone can verify a company at the CCB's license search before they start. The burst and frozen pipe cleanup page explains what the first visit looks like, and the cost guide gives typical ranges so the first quote is not a shock. If you want independent, CCB-licensed Central Oregon companies to reply with quotes, describe what happened once and they will contact you directly. Most offer 24/7 emergency response; ask when they call.
Is a burst pipe covered by insurance?
Usually, if it was sudden and you maintained heat or shut the water off while away. Gradual leaks and damage tied to an unheated vacant home are where claims get denied. The Oregon insurance guide covers what to document and what the state expects of your insurer.
The short version for the fridge door: thermostat at 70, drip the far faucets, open the cabinets, leave the snow on the meter box, and shut the main if you leave. Twenty minutes of prevention in December beats three weeks of fans in January.