At a glance
- Topic
- Every noise has a cause
- Reading time
- About 2 min
- Phone
- (365) 363-2754
- Matching repair
- Drain Cleaning in Ajax
Why it matters
Some noises are just annoying. Others, especially loud water hammer, shake joints and connections hard enough to cause leaks over time.
The routine, in order
| Sound | Likely cause | What to try |
|---|---|---|
| Bang when a valve closes | Water hammer from fast-closing valves | Arrestors at the washer and dishwasher |
| Ticking as hot water runs | Heated copper rubbing a joist or strap | Loosen or cushion the strap |
| Hum or buzz | High pressure or a vibrating valve | Check pressure, look at the regulator |
| Whistle at one fixture | A tired washer, or an angle stop left half shut | Open the stop fully, replace the washer |
| Gurgle in drains | Partial clog or poor venting | Clear drain, check vent |
- Note when the noise happens: which fixture, hot or cold, opening or closing.
- Find where it is loudest by walking the basement while someone runs water.
- Look for loose pipes and add proper straps or clamps with rubber cushions.
- Have pressure checked with a gauge on a hose bib.
Mistakes to avoid
- Clamping hot copper so tightly it cannot expand.
- Ignoring a new bang; something has changed.
- Wedging wood shims against pipes, which can rub through over time.
Local tip Capped vertical stubs near old fixtures once held an air cushion; over years they waterlog. Emptying the house lines refills them with air for a season.
Where a plumber takes over
Fitting arrestors, replacing a regulator and securing pipe in closed walls. For gurgling drains, see drain cleaning.
Questions we hear on the phone
Will the banging break something?
Not tonight, but years of shocks can loosen fittings and wear connections.