Said It Here

High pitched squealing noise from pipes at night

Pipes can produce random high-pitched squeals and strange noises in the middle of the night even when no water is running. Because the sound happens unpredictably and stops for hours at a time, it is nearly impossible to track down the source or show a plumber what is happening.

Overview
People affected4 accounts across 1 forum
Workarounds found5 items attempted
Community agreement5 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Searching on Google for answers
    Did this help you?
  2. 2
    Having a plumber check nearby apartments, faucets, showers, and toilets
    Did this help you?
  3. 3
    Testing toilet fill valves during refilling
    Did this help you?
  4. 4
    Got used to the noise over time
    Did this help you?
  5. 5
    Strapping down the pipes to prevent them from rattling against studs and joists
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/Plumbing4 people · September 2026

“For the past 2 nights I've been awoken to this noise multiple times. No running water happens while we're asleep”source ↗

TheRedDentist · r/Plumbing · 1 upvotes

“Yeah middle of the night nothing on”source ↗

TheRedDentist · r/Plumbing · 1 upvotes

“So there’s a high pitched squeal that lasts anywhere from a second or so to over a minute coming from my walls. My landlord thinks it’s due to the pipes. But we can’t find the source.”source ↗

“The noise goes off randomly. Sometimes long hours without the noise and sometimes the noise won’t stop for hours.”source ↗

“We finally got a plumber today and of course the noise doesn’t go off.”source ↗

“Five hours later the high pitched squealing is back.”source ↗

Professional-Peak261 · r/Plumbing · 1 upvotes

“Pretty much every time water is turned on. This has been constant the 2 years we've been in the house.”source ↗

“Really more annoying than anything but kind of got used to it.”source ↗

fooli-mug · r/Plumbing · 1 upvotes

“Hello everyone, when I woke up this morning I heard a loud clicking noise coming from our pipes.”source ↗

“It has been going on for at least half an hour.”source ↗

“Our neighbours in the second and third floor can hear it aswell, all insisting their small utility rooms.”source ↗

SchokoBaroni · r/Plumbing · 1 upvotes

Where this came up

People with this problem also raised