With an active leak, the first priority is keeping people away from electrical or structural danger and limiting the water where it is safe to do so. In an apartment, contact affected neighbours and the administrator as well as the plumber. They may need to arrange access to the source or protect another home from damage.
Keep clear of water and electricity
Don't touch switches or appliances while standing in water. Keep away from wet electrical equipment, contaminated water and bulging ceilings. Isolate electricity only from a safe, dry position if you know the correct control. Immediate danger needs emergency services.
Leave a bulging ceiling alone. Water above it can create electrical and collapse risks, so keep people clear and explain the condition when asking for urgent help.
Stop what you can safely stop
Close the appliance valve or internal main stop valve if you know it and can reach it safely. Don't force a seized valve or tamper with a utility seal. Move belongings and catch water only where doing so is safe.
In an apartment, warn the affected neighbours and call the administrator. The source could be your pipe, someone else's or a shared part of the building. The person below you needs to know what's happening too.
Book the visit with the important details
Send the plumber a map pin, address, access details, photos and whether the water is isolated. Ask about the emergency call-out charge. If the problem appears to be supply-side or at the meter, contact the water provider about the location and symptoms.
Record the damage and repair
Take photos before material is removed where you can without delaying urgent work. Ask the plumber what failed, whether the fix is temporary and what drying or follow-up is needed. Keep the invoice and relevant evidence for insurance, and agree the scope and cost of further work once the immediate problem is controlled.
Before you go ahead
- Electrical danger avoided
- Water isolated safely
- Neighbours or administrator warned
- Photos taken
- Repair and follow-on needs documented
Common questions
Should I call the water company or a plumber?
A fault inside the property's installation is normally for the user or owner; a network, meter or supply-side issue may belong to the provider. If unsure, report the location and symptoms to both appropriate contacts.
Can I wait until morning?
Only if the water is securely isolated, there is no electrical or structural danger and affected neighbours are protected. Otherwise seek emergency help.
People are talking about this
A few Reddit discussions behind this guide. These are personal accounts; they aren't a measure of how often it happens.
A recurring complaint is not only price but silence: tradespeople promise a visit or quote and then disappear without closing the loop. Read the discussion
Sources and further reading
Official information checked on 12 October 2026. Rules and procedures can change; verify the live source for your exact circumstances.