First Utility Vouchers & Promo Codes updated on June 23, 2018
- Save an Average of £166 When You Switch Your Energy Supply to First Utility
- £166 Off on First Utility: Tell a Friend They @ First Utility Discount
- Choose the First Utility discount code by clicking 'Get Code' or "Get offer".
- Select the items you need to buy from First Utility website and add them to your shopping cart
- Then go to the checkout page and you could see a box. Just Type in or copy and paste First Utility promo code and click "Apply".
- Continue to finish the payment.