No sweat, no tears… Save up to £220* on our competitive green tariffs plus a £50 donation to Bloodwise and free boiler service (usually £84)!

We are proud to support Bloodwise, the blood cancer charity. By switching to green energy that leads to cleaner air - and better overall health - for everyone, you're also helping us to beat blood cancer sooner. What's more, we’re donating £50 to Bloodwise for each and every person who switches their energy supply to us. To ensure we can make this donation on your behalf, please start your quote below and complete your switch online.

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Switch to renewable energy and save the planet - while doing your bit to fight blood cancer.

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Bloodwise & Tonik Energy

Bloodwise works hard to fight blood cancer. We work hard to save the planet. Now we’re working together to fight the third biggest cancer killer in the UK by donating £50 to Bloodwise for each person who signs up to Tonik’s renewable energy through this page. So not only does each person who signs up to Tonik make the world’s air that little bit cleaner, but they’re also helping to tackle one of the most aggressive cancers out there. Let’s make a difference together.

* Savings are compared to standard variable tariffs offered by Big Six Energy Suppliers for an average customer as defined by Ofgem

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Ready to sign up to the renewable revolution?

Having a reliable boiler to bring heating and hot water to your home is a daily essential. But just like a typical car service, you need to get it checked regularly to make sure it's working properly. That's why Tonik have teamed up with HomeServe, one of the UK's leading home assistance providers, to offer a Gas Boiler Service plan through HomeServe completely FREE in the first year (usually £84) for renewing customers. A HomeServe approved Gas safe® registered engineer will conduct a service on your boiler free of charge. They will also offer advice and tips on using your heating more efficiently. Having your boiler serviced regularly may reduce the risk of a breakdown and may also help to prolong its life.

Please note:

Owing to the Covid-19 pandemic HomeServe need to prioritise emergencies and put their most vulnerable customers first, but don't worry your first Gas Boiler Service will still take place after 6 months of your plan start date.

Offer Terms & Conditions

Gas Boiler Service Plan Terms & Conditions

Here's how it pays to join Tonik...

When you switch your energy supply to Tonik, our award-winning customer service and sustainably priced green energy come as standard, but there’s more – we reward our members for each step they take to help rid our skies of dirty, fossil fuel emissions.

Switch to green energy with us and we'll donate £50 to say thanks!

Refer your friends. You get £25 off your bill. They get £25 too.

Take a (much cleaner) deep breath. You’re a renewable hero now.

Switch to green energy in just two minutes


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Choose your renewable energy tariff and then we'll take a few quick details.


Leave the rest to us

Sit back. Relax. Feel good about the good you've done for the planet.

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