General enquiries
1300 838 009Customer service & sales · Mon–Fri 8:30am–6:00pm AEDT
Customer service & contact
Customer service & contact
Diamond Energy contact details
The Diamond Energy contact number is 1300 838 009. Diamond is known for its customer-first approach, with no phone menu and an Australian-based call centre. Below you will find every way to get in touch, including email, post and accessibility services.
1300 838 009 · general line
No phone menu
Australian call centre
Interpreter & relay
How to reach Diamond
Diamond Energy contact details
Unlike larger retailers, Diamond has a single phone line and a single email, with interpreter and relay support for every customer.
Interpreter (TIS National)
131 450Free interpreter, ask for Diamond Energy
For billing, switching & general help
Postal address
Diamond Energy
Level 11, 480 Swan Street
Richmond VIC 3121
Opening hours
Monday to Friday
8:30am to 6:00pm (AEDT)
No phone menu, Australian-based call centre.
Inclusive support
Interpreter & accessibility services
Diamond Energy offers inclusive customer service so every customer can get the help they need.
Interpreter service (TIS National)
If English is not your first language, call 131 450 to access translation services and ask to be connected with Diamond Energy.
National Relay Service
Customers who are deaf or have a speech impairment can reach Diamond through the National Relay Service, then ask to be connected to 1300 838 009.
Emergencies
Emergencies & power outages
Although Diamond sells you electricity, it is your energy distributor who connects your home and fixes faults and outages. Find your distributor's emergency number on your latest energy bill or by searching your postcode online.
Serious danger to life or property, or you smell gas
Emergency services
000Power outage or an electrical fault
Your energy distributor
See your billEmergency number. If there is a serious danger to life or property, or you smell gas, call the emergency services on 000 immediately.
Moving house or switching providers?
If you are relocating or looking for a more sustainable retailer, Diamond can help you transfer or disconnect your service. Give at least 3 to 5 business days' notice for a smooth transition. You can read more about Diamond's plans on our Diamond Energy review, or compare retailers before you decide.
Common questions
A Selectra expert answers your most common Diamond Energy contact questions
Call 1300 838 009 Monday to Friday 8:30am to 6:00pm (AEDT), email [email protected], or write to Level 11, 480 Swan Street, Richmond VIC 3121. Diamond has just one phone line with no phone menu and an Australian-based call centre.
Diamond Energy's phone line is open Monday to Friday, 8:30am to 6:00pm (AEDT). There is no phone menu, so you reach a real person quickly.
Yes. Interpreter services can be accessed by calling TIS National on 131 450 and asking to be connected to Diamond Energy. Customers who are deaf or have a speech impairment can reach Diamond through the National Relay Service, then ask for 1300 838 009.
Diamond Energy's postal address is Level 11, 480 Swan Street, Richmond VIC 3121.
For a power outage or fault, contact your energy distributor — Diamond sells you electricity but does not run the network. Find the distributor's number on your bill or search by postcode. For serious danger to life or property, or if you smell gas, call 000 immediately.
If you are moving or switching, notify Diamond Energy at least 3 to 5 business days in advance. Provide your details so they can arrange a smooth transfer or disconnection of your energy service.
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Before you call, is Diamond still the right plan for your home?
Whatever your query, it is worth checking your plan against the market. Compare Diamond with other retailers that supply your address to find the plan that fits how you actually use electricity.