Free tree-trimming inspection application

Get your free tree-trimming inspection.

Trimming trees or vegetation near power lines can be extremely dangerous. If branches, trimming equipment, or other items come into contact with power lines the results can be serious – including injury or death, property damage, fires, or power outages.

We’re here to help. Get in touch if you need help. Or, check out our FAQs.

Fill in the form to get a free tree-trimming inspection and no-obligation quote from MainPower.

We have expert arborists trained to work near power lines and can help you keep your trees trimmed safely.

Why can trees cause outages?

Trees need to be kept a safe distance away from power lines and other electricity network equipment because:

Be proactive: Regularly inspect your trees and be aware that if your trees cause any problems on our network, you can be charged for all costs of repair.

We’re here to help

If you need some assistance or advice, please get in touch with our team.

Outage notifications

WEATHER RELATED OUTAGES - updated 12.00pm 29/10/2025

We’re making great progress restoring power across the network. Currently there are 85 customers without power, but we have a large number of crews in multiple locations again today.

We will have a helicopter operating in the Hurunui Mouth area around midday today. The helicopter is a twin engine and is carrying out complex river crossing repairs. It will be travelling low and slow, and it will be quite loud.

Please keep the area clear so our teams can carry out these urgent repairs to restore power to the area.

Estimated restoration times are regularly being uploaded to the Outage Map.

If you have any concerns or questions, please call our customer service team on 0800 30 90 80.

TREAT ALL POWER LINES AS LIVE AT ALL TIMES. Please stay away from any downed lines and report any sighting to us on 0800 30 90 80.

For the most recent updates on outrages, please check our outage map. To report an outage, call 0800 30 90 80.

We appreciate your understanding and patience during this time.

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

Outage notifications

WEATHER RELATED OUTAGES - updated 12.00pm 29/10/2025

We’re making great progress restoring power across the network. Currently there are 85 customers without power, but we have a large number of crews in multiple locations again today.

We will have a helicopter operating in the Hurunui Mouth area around midday today. The helicopter is a twin engine and is carrying out complex river crossing repairs. It will be travelling low and slow, and it will be quite loud.

Please keep the area clear so our teams can carry out these urgent repairs to restore power to the area.

Estimated restoration times are regularly being uploaded to the Outage Map.

If you have any concerns or questions, please call our customer service team on 0800 30 90 80.

TREAT ALL POWER LINES AS LIVE AT ALL TIMES. Please stay away from any downed lines and report any sighting to us on 0800 30 90 80.

For the most recent updates on outrages, please check our outage map. To report an outage, call 0800 30 90 80.

We appreciate your understanding and patience during this time.

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

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