Last Updated: September 2, 2025
Woken up by clanging or banging pipes when the house is quiet? You’re not alone. Noisy pipes are one of the most common plumbing complaints we deal with in Dublin homes — especially at night when everything else is silent. Whether it’s a sharp banging, a humming sound, or pipes that seem to rattle when taps are turned off, these noises are never just “normal”. In fact, they’re often early signs of plumbing issues that need fixing.
At Dublin Plumber 24 hrs, we get called out for this kind of thing all the time. Our team has helped homeowners across Rathfarnham, Clondalkin, and all over Dublin silence their pipes and sleep easy again. Let’s walk through why this happens and how we fix it — without confusing jargon or delays.
👉 Need help now? Call an emergency plumber in Dublin — we’re available 24/7.
🚿 Why Are My Pipes So Noisy?
There are several reasons pipes make noise, and the exact sound often tells us what’s going on:
Sound You Hear |
Likely Cause |
|---|---|
Banging or thudding |
Water hammer – sudden pressure shock in pipes |
Rattling or vibrating |
Loose pipe supports or brackets |
Hissing or whistling |
High water pressure or narrow pipe blockage |
Gurgling or bubbling |
Air trapped in pipes or slow drains |
👨🔧 Water Hammer – The Big Culprit
The most common reason for noisy pipes is something called water hammer — and no, it has nothing to do with actual hammers. It’s a pressure surge that happens when water flowing at speed is suddenly forced to stop, usually when a tap or valve is closed quickly. This can make your pipes slam, shake, or clunk — often loudly enough to be heard through walls or floors.
We fix this using techniques like:
Installing water hammer arrestors
Checking and adjusting your home’s water pressure
Securing loose pipes inside walls or floor cavities
🔍 How We Diagnose the Cause of Noisy Pipes
At Dublin Plumber 24 hrs, we don’t just guess based on the sound — we investigate thoroughly. Every property is different, and so is the plumbing system inside it. Some homes have older copper pipes, others have a mix of modern plastic and traditional plumbing — and that makes a big difference in both the sound and the solution.
Here’s what our diagnosis process typically involves:
Checking water pressure levels across all taps
Inspecting isolation valves and shut-off valves for sudden stops
Using a borescope or thermal imaging camera to trace hidden vibrations in walls
Looking for signs of loose pipework under floorboards or in ceilings
Examining boiler and heating system connections for expansion noises
This isn’t just guesswork — it’s backed by over 23 years of local plumbing experience, with fully insured, RGI-certified plumbers on our team. You can trust that we’ll explain everything and never upsell unnecessary work.
If you’re hearing strange sounds and not sure where to begin, start with a free consultation or inspection. Whether you’re in Dundrum, Terenure or Clonsilla, we’ll get there quickly.
🔧 Our Fixes: How We Stop Noisy Pipes for Good
Once we’ve identified the cause, we get to work on a permanent solution, not just a quick patch. Some fixes are straightforward — like tightening brackets or installing pipe insulation — while others might involve upgrading components to reduce pressure surges.
Common fixes we carry out:
✅ Fitting water hammer arrestors on dishwashers, washing machines, or mixer taps
✅ Installing pressure-reducing valves to stop system stress
✅ Re-routing loose pipes or clipping them securely inside walls
✅ Replacing worn-out tap cartridges or valves that cause sudden flow stops
✅ Adding expansion loops or air chambers for long pipe runs
We also check if the issue might be connected to a heating system, in which case we might recommend power flushing or adjusting system pressure. Curious how your heating setup affects plumbing noises?
🛑 Can You Prevent Noisy Pipes in the Future?
Absolutely — and that’s where we really help our customers save money in the long run. While many pipe noises come from wear-and-tear or older systems, good plumbing design and maintenance go a long way in preventing them.
Here’s what we usually recommend to homeowners in Dublin:
💧 Get your water pressure checked regularly – high pressure is a top cause of water hammer and valve damage.
🧰 Secure any exposed pipework in attics, cupboards, or under floors using brackets or cushioning clips.
🏠 Schedule routine servicing for your heating system — expansion and flow issues often start there.
🔄 Upgrade old valves and tap fittings — especially in bathrooms or utility rooms.
Planning a renovation or house upgrade? Our team can advise during bathroom renovations, boiler upgrades, or even a full house replumbing job to ensure your future pipework is silent and smooth.
📞 When to Call an Emergency Plumber for Noisy Pipes
Some noises are just a small nuisance, but others are warning signs of bigger problems — like a pipe burst or hidden leak behind your walls. If you hear any of the following, it’s time to act fast:
A sudden loud bang every time a tap shuts off
Pipes vibrating or “jumping” inside the wall
Hissing, screeching, or groaning sounds during the night
Your boiler or pump making clunking or knocking noises
These issues often point to pressure imbalances, airlocks, or loose joints that could fail at any moment. In those situations, don’t wait. Call Emergency Plumber Dublin for 24/7 help, or book a trusted Plumber Dublin for professional repairs.
For round-the-clock service, our dedicated 24 Hour Plumber Dublin team is always ready to respond — keeping your home safe and your plumbing in top shape.
✅ Why Choose Dublin Plumber 24 hrs for Noisy Pipe Repairs?
At Dublin Plumber 24 hrs, we’ve been fixing noisy pipes and water hammer issues in Dublin homes for over 23 years. We don’t just patch the noise — we solve the cause. Whether it’s a faulty valve, loose pipe, or high pressure, our expert plumbers diagnose the issue properly and fix it fast.
Here’s why homeowners trust us:
🛠️ RGI-certified and fully insured professionals
⏱️ 24/7 emergency callout across all Dublin areas
📍 Locally based – we cover areas like Neilstown, Rathfarnham, Dundrum, and beyond
🧾 Honest pricing with no hidden call-out fees
🧰 Full-service support from boiler servicing to bathroom renovations
So if your pipes are knocking, boiler is banging, or your walls are vibrating, don’t wait for a disaster. Get in touch with your trusted emergency plumber in Dublin — we’re always here when you need us.
🙋♀️ FAQ – Noisy Pipes & Water Hammer Fixes
1. What causes noisy pipes at night?
Noisy pipes are usually caused by water hammer — a sudden stop in water flow that creates a shockwave through the pipes. Loose fittings, high water pressure, or aging plumbing can also be to blame.
2. Is water hammer dangerous?
Yes, over time it can lead to joint damage, pipe bursts, or leaks if left untreated. It’s important to fix it early.
3. How do plumbers fix noisy pipes?
We assess water pressure, check pipe support brackets, and may install water hammer arrestors or reduce system pressure. Each home needs a tailored solution.
4. Can I fix water hammer myself?
You can try reducing pressure or adding pipe clips if visible. But for lasting results, it’s best to get a qualified plumber to inspect the whole system.
5. Do you offer emergency plumbing services?
Yes — Dublin Plumber 24 hrs is available 24/7. If your pipes bang, rattle, or burst, call us anytime for rapid, local support.