Hidden water leaks can go unnoticed for months, driving up bills and causing damage behind walls and under floors. Call 020 7183 4810 if any of these signs sound familiar.
Suspect a hidden leak?
We trace and fix leaks fast, before they cause serious damage.
Need a Gas Safe engineer today?
Same day callouts across Central and West London, fixed quotes and fully guaranteed work.
Signs to look out for
- An unusually high water bill with no change in usage
- The sound of running water when everything is switched off
- Damp patches, staining or peeling paint on walls or ceilings
- A musty smell in a particular area of the home
- Reduced water pressure
- Cracks appearing in walls or flooring
- Your water meter still moving when no water is being used
Why we do not recommend trying to trace it yourself
| Common online advice | Why it falls short |
|---|---|
| “Check every visible pipe yourself” | Most hidden leaks are behind walls, under floors or underground — invisible without specialist detection equipment. |
| “Wait and see if the bill goes back to normal” | Leaks rarely resolve on their own and tend to worsen, increasing both the bill and the damage. |
Stop and call us now if…
- You hear running water with everything turned off
- You notice damp, staining or a musty smell anywhere in the property
- Your water meter keeps moving with no taps or appliances running
- Your bill has jumped noticeably with no explanation
What it costs to wait
An undetected leak wastes water continuously, inflating your bills every month it goes unfixed, and water damage behind walls or under floors can lead to structural repairs and mould, which cost far more than an early leak detection visit.
How Olia’s Plumbing & Heating handles it
- Call 020 7183 4810 and describe what you have noticed
- Our engineer uses proper leak detection equipment to trace the source
- We repair the leak and check for any resulting damage
Get your leak traced and fixed
Fast, non-invasive leak detection across London.
Frequently asked questions
How do professionals find hidden leaks?
We use specialist detection equipment that locates leaks without needing to dig up floors or strip walls unnecessarily.
How much does leak detection cost?
Call 020 7183 4810 for a clear price based on your situation.
Can a leak cause damage even if I cannot see water?
Yes, leaks behind walls or under floors can cause significant damage long before any water becomes visible.
Do not let a hidden leak run up your bills. Call 020 7183 4810 today.
Related services: Gas Leak Detection Central London, Plumber Central London, Guide to Emergency Plumbing Call-outs
Peyman
CEO & Founder — Gas Safe Registered Engineer
Peyman is the founder of Olia's Plumbing & Heating, a London based team with over 15 years of hands on experience in boiler installation and repair, central heating, gas work and emergency plumbing. He personally oversees jobs across Central and West London and writes these guides to help homeowners understand their heating systems.
- Gas Safe Registered
- 15+ years experience
- Covering all of London
