It’s quick & easy to join online, simply enter your address below to get started. Prefer to speak with someone? You can also call 0800 456 527. We're here Monday to Friday 8am-8pm.
Here are just some of the great reasons to join Mercury
// Earn Airpoints DollarsTM when you pay your Mercury bill
// Save an extra 2% discount when you receive your bill by email and pay by direct debit
// Track your usage and manage your power bill with GEM, our online usage monitor