Bubbles 101: Carbonating cylinders create the bubbles. After some time, the carbonating cylinder runs out of CO2. We offer an online exchange in which you get a new carbonating cylinder in exchange for your empty one. When you order a CO2 refill at Sodastream.co.uk, you just pay the price of the CO2 and are then can get a pre-paid shipping label to return your empties.
Once you order your exchange at Sodastream.co.uk, our CO2 Refill program has 3 easy steps to get you back to bubbling.
- Submit your order online and we'll send you full CO2 cylinders to your home.
- Your cylinders will arrive in a box.
- To return your empty cylinders, you can choose from any of these shipping methods:
- Standard - Orders delivered within 3-5 working days (returns with InPost or Yodel)
- Express - Next day delivery on orders placed before 12pm. Orders after 12pm arrive in 2 working days (returns with InPost or Yodel)
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Swap-It - Express DPD delivery:
✨ One simple swap – Get new cylinders and return empties in one go.
🚚 Doorstep convenience – No trips, no waiting, no hassle.
- Have empty cylinders ready? Choose Swap-It when ordering new exchange.
- DPD delivers your full cylinders, right to your door.
- Pop your empty cylinders into the original packaging, make sure to remove or cover up the old label.
- The driver takes your empties while dropping off your new ones.
- You’ll get a confirmation receipt once the swap is done.
Sparkle Note
- Please remember to return an empty cylinder for each refill cylinder you have ordered within 90* days of purchase. If you do not return the empty cylinder(s) within 45 days of purchase, or if you do not have any empty cylinders to return, there is an additional £10 charge for each unreturned cylinder.
- Not sure which return option is best for you? Click here
- Find your 'Customer Number' in your account under "Orders":
* Cylinder exchange orders made prior to Oct 22nd, 2025 will still have the return window of 45 days.
Questions? Contact us via email or phone at 0800-085-8373.