Utility Warehouse Discount Codes in December 2025

More than 1,000,000 households have switched to UW. UW has earned over 80 industry awards and counting within 10 years. Over £70,000,000 saved on bills via our cashback card. Annual savings up to £300+ a year for multi-service customers. Save on household bills - Unlock the UK’s cheapest award-winning energy, best value unlimited data mobile and superfast broadband with no mid-contract price hikes – guaranteed. You can now add up to three additional Unlimited+ SIMs for just £8 each to help towards saving £300+ on household bills. Not seeing savings after your first year? We'll pay you double the difference and let you leave without exit fees. Complete the offer form and the UW dedicated team will be in touch with you.