During flooding, only shut off electricity, gas or water if you can reach the controls without entering water or an unsafe area. If there is any doubt, keep clear, follow official instructions and call the relevant qualified professional or emergency service.
Should you turn off utilities during a flood?
Possibly, but only when it is safe. The right action depends on the location and condition of the property, the utility controls and the emergency situation. New Zealand Civil Defence advises turning off water, electricity and gas if advised to. Do not attempt a shut-off that would put you near standing water, damaged electrical equipment, a gas smell or unstable access.
Flood utility safety chart
| Utility or condition | Safe first action | When to seek help |
|---|---|---|
| Electricity near water | Keep out; do not touch switchboards, outlets, cords or appliances. | Water may have affected electrical systems or controls are not dry and safely accessible. |
| Suspected gas leak or gas smell | Move away, avoid flames and do not operate electrical switches. | Contact the emergency gas service or a qualified gasfitter. |
| Active plumbing leak | Stop the water supply only if the shut-off is safely accessible. | The source cannot be controlled safely or plumbing requires repair. |
| Water has affected a utility system | Keep it out of use until it has been assessed. | Before electricity, gas appliances or affected systems are returned to service. |
Before an emergency: know your safe controls
- Ask a qualified electrician, plumber or gasfitter to explain relevant controls if you are unsure.
- Keep access routes to service controls clear and adequately lit.
- Store emergency contact details with your household emergency plan.
- Do not test or alter gas and electrical installations yourself.
After utilities or water have been affected
Do not re-energise water-affected electrical systems or use water-affected gas equipment until it has been professionally checked. Once the site is safe, document the water source and materials affected, then arrange restoration assessment for extraction, cleaning, moisture inspection and drying.
Frequently asked questions
Can I turn off the main switch if there is water on the floor?
No. Do not approach a switchboard from a wet or unsafe area. Keep clear and arrange emergency or qualified electrical help.
What should I do if I smell gas during a flood?
Move away from the area, avoid flames and electrical switches, and contact the relevant emergency gas service or a qualified gasfitter.
Can I turn the water off after a burst pipe?
Only if the shut-off is safely accessible and you can do so without entering an unsafe area. Otherwise contact a plumber or emergency service.
When can drying equipment be used?
After the property is safe for access and electrical equipment. A restoration provider can then set up a suitable drying plan.
See New Zealand Civil Defence flood guidance for current official advice.
Need flood restoration once it is safe? Carpet Drying Force can document the event and provide a moisture-led drying and restoration scope.
