Road disappearing into the distance.

Get rewarded for switching to green energy

We supply 100% renewable electricity sourced from a mix of solar and wind farms and offer the option to upgrade to carbon-neutral gas too – 10% of which is green gas captured during farming processes and the remaining 90% carbon offset. 

The best bit? You don’t have to choose between doing the right thing and saving money.  With Tonik you can save up to £300* one of our 100% renewable energy tariffs. Switch today and also get a free gas boiler service for the first year through HomeServe

Please note: If you have come from a cashback site you have to switch using the tool below on this page to be eligible for the cashback

* Savings are compared to standard variable tariffs offered by Big Six Energy Suppliers for an average customer as defined by Ofgem (3,100kWh of electricity and 12,000kWh of gas a year).

Switch to Tonik here to be eligible for the partner benefit

Get a quote
Homeserve bolier

Free gas boiler service when you switch

Not only can you get cash back when you switch but 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 online today - it only takes 2 min!

Earn cashback and rewards once we've switched you over

Free gas boiler service through HomeServe (usually £84)

Ask a question?