If you’re residing in Cardiff, UW could help you save significantly on your energy bills.
With a community of 18190 customers in Cardiff already benefiting from UW’s services, they are collectively estimated to save around £873,120 on their annual energy costs.
By bundling energy with broadband and other services, customers could maximise their savings potential of £274, all while receiving expert advice from our network of 1219 local Partners.
Experience the difference today with UW as your energy provider.
Energy Savings Estimate: Save on average £48 per year on your energy bills when you take a variable energy service plus two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem’s typical domestic usage. Payment by Direct Debit. Correct as of 17/04/26. Contact us to verify.
Multi Service Savings Estimate: We’ve compared our most popular services with the average price of our main competitors’ equivalent services. By ‘main competitors’ we mean at least three of the largest suppliers by market share who sell a comparable product. The saving shown is based on the average of these competitors’ pricing when compared with an equivalent new UW customer who takes three services – energy (Double Gold variable), broadband (Full Fibre 150), mobile (Unlimited) and pays by direct debit.
Energy: Save on average £48 per year on your energy bills when you take a variable energy service plus two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem’s typical domestic usage. Payment by Direct Debit. Correct as of 17/04/26. Contact us to verify.
Broadband: Switching to UW Full Fibre broadband after your initial contract with current supplier has ended could save you £44 a year. This calculation is based on the average UW saving of our Full Fibre 150 tariff vs BT, EE, Plusnet, Sky, Talk Talk, Virgin and Vodafone’s closest equivalent tariff (£134.45) over three years. Correct as of 17/04/26.
Mobile: Save £182 with Unlimited Max compared against the closest equivalent 30 day rolling unlimited data tariffs across EE, GiffGaff, O2, Three and Vodafone over a 12 month period. Price correct as of 16/04/2026. Excludes offers and promotional tariffs.
Additional SIMs charged at £0/month for six months, then £10/month each. Terms apply.
Have questions? Speak with our Partners today to learn more.
The UW Cashback Card is one of the easiest ways to shrink your bills. Top it up. Use it when you shop. Earn up to 10% cashback. That cashback comes straight off your UW bill.
Even better? Get up to £150 pre-loaded when you join.
And our top Cashback Card holders save an average of £461 a year on their UW bills. Not bad for everyday spending.
Cashback: you can earn unlimited cashback at the relevant % from our retail partners each month. Purchases from other retailers are eligible for cashback of 1% on spend, subject to cashback caps which vary depending on the number of services you have taken out. You are only eligible to receive the 1% cashback at other retailers if you are not engaged in debt collection proceedings with UW – and have at least one of the following services live at the time of billing: Mobile, Broadband (Broadband and/or Home Phone) or Energy. See our Cashback Card terms and conditions here.
Cashback Card Trial: Get three months free cashback on everyday spending at major retailers. £3 per month after trial – no contract, cancel any time. See terms and conditions here.
Cashback Card Credit: New UW homeowner and tenant customers only. Welcome Bonus (£50-£150) based on Bundle Services taken at sign-up (excludes Home Insurance). Direct debit required. 12-month clawback applies if Bundle Services cancelled. Energy or Broadband required for £100/£150 Bundle Service bonus. For full terms click here.
Cashback Savings: Calculated using the average cashback earned between 01-01-2024 to 29-12-2024 (52 weeks) by the top 10% of active account holders (customers who used their card at least once a week during this period). This figure excludes customers who won 100% cashback through the Cashback Magic promotion.
The UW cashback card is issued by PSI-Pay Ltd pursuant to a license by Mastercard International Incorporated. PSI-Pay Ltd is regulated by the Financial Conduct Authority (FCA) under the electronic Money Regulations 2011 (FCA register number 900011) for the issuing of electronic money. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.
Our cashback card provider PSI-Pay Ltd is an authorised e-money institution. E-money is not subject to Finance Services Compensation Scheme protection in the way bank deposits are, but it is subject to “safeguarding” requirements. In the unlikely event of insolvency, this means there will be a pool of funds from which cashback card customers would be repaid (subject to certain deductions for associated insolvency costs).
Add up to three extra unlimited data SIMs to Unlimited Max for free for six months.
The more services you add, the bigger the savings you can unlock. Guaranteed.
Build the perfect bundle of energy, broadband, mobile and insurance that’s right for you.
Unlimited Max tariff: New mobile customers only. 1 Unlimited Max SIM at £23 required. Inclusive allowance free on up to 3 additional SIMs for 6 months, then standard charge p/m each. Out-of-allowance usage charges apply. Porting of existing no. required. See terms. Correct at 28.08.2025 UW Price Pledge: Eligible new customers (from 22/04/24) who take 3 or more qualifying services and regularly use their Cashback Card. If a customer doesn’t save with UW (incl. Cashback) in their first year vs their previous provider (or cheapest major provider where applicable), they can apply to claim the UW Price Pledge between 12 – 15 months after their sign-up date; the pledge & no exit fees only applies to qualifying services taken at sign-up. When you claim, we’ll assume an average Cashback Card saving of £160 a year (based on customer usage data from 03.04.23 to 31.03.24, for users who earned Cashback at least at least once a week, excluding promotional activities) or your actual Cashback saving if higher. Full details, eligibility and terms available here.
Here’s a few ways you can save with Utility Warehouse:
– Cheapest variable energy in the UK
– Unlimited data SIM for £23 or get 10GB for £5
– Broadband for just £23.95 a month with no connection fees
– A Cashback Card that gives you money off your bill when you do your every day shopping
£400 to help you switch: When you take a 3 or 4+ Service Bundle, we’ll give you credit up to £400 towards any termination fees (excluding Home Insurance) you have to pay your current providers. You’ll need to return any equipment and pay for services you used before you cancel. Additional requirements apply to customers who are tenants. Further terms apply see our Residential Products and Services terms and conditions here.
30 days to switch: Available when a new customer switches at least two of their services on the same date: energy, broadband, mobile and insurance (insurance means Boiler & Home Cover or Income Protector only). Any equipment must be returned and services used must be paid for before cancelling. Terms apply.
UW Price Pledge: Eligible new customers (from 22/04/24) who take 3 or more qualifying services and regularly use their Cashback Card. If a customer doesn’t save with UW (incl. Cashback) in their first year vs their previous provider (or cheapest major provider where applicable), they can apply to claim the UW Price Pledge between 12 – 15 months after their sign-up date; the pledge & no exit fees only applies to qualifying services taken at sign-up. When you claim, we’ll assume an average Cashback Card saving of £160 a year (based on customer usage data from 03.04.23 to 31.03.24, for users who earned Cashback at least at least once a week, excluding promotional activities) or your actual Cashback saving if higher. Full details, eligibility and terms available here.
Cheapest variable energy: when you take energy and two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem’s typical domestic usage. Payment by Direct Debit. Correct as of 13/01/26. Contact us to verify. See UW terms and conditions.
One bill – for all your home services.
One account – with only one password to remember.
One number – for our award-winning Customer Services team
Best Value Energy Supplier rated by Expert Reviews and rated ‘Excellent’ on Trustpilot.
The UK’s best value Unlimited+ multi-SIM mobile deals, with 99% UK coverage.
Five star rated building and contents home insurance plus boiler and home cover.
Awards: Our Home Insurance cover has been given five stars by independent consumer experts, Defaqto (2026) and Moneyfacts (2026).
The UK’s best 3+ multi-SIM deal on 5G Unlimited SIMs: Based on price, speed and reliability.
Price: UK’s cheapest unlimited multi-SIM package in the UK on a 30 day rolling contract for customers taking 3 or more Unlimited SIMs compared to EE, GiffGaff, ID Mobile, O2, Smarty, Three, Vodafone (excluding introductory or time limited offers). Prices correct as of 16/04/2026
UW offers a comprehensive energy solution in Cardiff.
By bundling your energy service with broadband and mobile, you could enjoy significant estimated savings on your utility bills and streamline your payments.
With our 1219 dedicated Partners available in the area, you can easily find the tailored service that fits your needs.
Join over 1,386,585 customers across the country, and you could save up to £274 a year when you take all of our services.
Compare our fixed and variable rate tariff deals.
Full fibre with no installation or connection fees.
Unlimited data, calls and texts with 99% UK coverage.
Defaqto and Moneyfacts five-star-rated Home Insurance.
Multi Service Savings Estimate: We’ve compared our most popular services with the average price of our main competitors’ equivalent services. By ‘main competitors’ we mean at least three of the largest suppliers by market share who sell a comparable product. The saving shown is based on the average of these competitors’ pricing when compared with an equivalent new UW customer who takes three services – energy (Double Gold variable), broadband (Full Fibre 150), mobile (Unlimited) and pays by direct debit.
Energy: Save on average £48 per year on your energy bills when you take a variable energy service plus two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem’s typical domestic usage. Payment by Direct Debit. Correct as of 17/04/26. Contact us to verify.
Broadband: Switching to UW Full Fibre broadband after your initial contract with current supplier has ended could save you £44 a year. This calculation is based on the average UW saving of our Full Fibre 150 tariff vs BT, EE, Plusnet, Sky, Talk Talk, Virgin and Vodafone’s closest equivalent tariff (£134.45) over three years. Correct as of 17/04/26.
Mobile: Save £182 with Unlimited Max compared against the closest equivalent 30 day rolling unlimited data tariffs across EE, GiffGaff, O2, Three and Vodafone over a 12 month period. Price correct as of 16/04/2026. Excludes offers and promotional tariffs.
Additional SIMs charged at £0/month for six months, then £10/month each. Terms apply.
I’ve been a UW partner for over 10 years and I love what I do! Me and my team have helped thousands of families save money and time on their bills with some other amazing benefits. I’m also a trainer and a recruiter for UW and I help people from all walks of life create an extra income that doesn’t affect their job. Please get in touch for a chat – I’m happy to help.
My name is James, and I live in Cardiff, South Wales. I originally became a UW Partner, as I was looking for a flexible way to earn some money while studying at university. I’m proud to have helped families across the UK reduce their monthly bills, and I love introducing them to becoming a Partner, as well. I’m able to chat remotely or in person, so please get in touch if you’d like to find out how much you could save with UW or if you’re interested in becoming a Partner. I’m always happy to help!
My name is Sarah and I am married with 2 children, both of which have hearing challenges. Due to struggling with childcare while the children were small, I started UW to allow me to be a full-time parent whilst also earning an income from home. After more than 8 years as a customer and partner, I am able to spend time with my children and help other families do the same. There’s nothing exciting about paying bills, which is why we help you with the boring stuff and make it fun and easy. We live in a small village in South Wales and have helped hundreds of families reduce their monthly spend and have more time with loved ones.
Get a quote in seconds to compare energy prices between our fixed and variable rate tariff deals and switch in as little as two days.
Looking for better energy deals in Cardiff? UW has you covered. We’re an award-winning provider, recognised by Uswitch for both Best Value for Money and Customer Service.
We offer excellent-value variable, fixed, and EV tariffs to suit your needs.
– Our Fixed Energy Tariff alongside another UW service starts from £1,778
– Our Fixed Energy Tariff plus two other UW services starts from £1,690
Join our satisfied UW energy customers in Cardiff today.
Energy Price Cap: April price cap is confirmed at £1,641 based on Ofgem typical domestic usage, for 12 months with payment by Direct Debit. UW Fixed Start 83 is priced at £1,899, UW Fixed Essentials 83 is priced at £1,799, UW Fixed 83 is priced at £1,778, UW Fixed Saver 83 is priced at £1,690 for a dual fuel customer, based on Ofgem typical domestic usage, for 12 months with payment by Direct Debit.
UW offers you a seamless way to switch your utility supplier and enjoy excellent value in Cardiff. Simply choose your preferred tariff, and we’ll handle the rest.
After you select your plan, UW will contact your current energy supplier to inform them about your switch. In just 2-5 working days, your new gas and electricity services will be live.
By bundling additional services with your energy, you could potentially unlock impressive savings on your household bills.
Cheapest variable energy: when you take energy and two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem’s typical domestic usage. Payment by Direct Debit. Correct as of 13/01/26. Contact us to verify. See UW terms and conditions.
Awards: Our Home Insurance cover has been given five stars by independent consumer experts, Defaqto (2026) and Moneyfacts (2026).
UW delivers an exceptional opportunity to enhance your home energy experience in Cardiff.
You could be eligible for up to £400 to assist with any termination fees from your current providers.
With UW, you also have a full 30 days to change your mind without any penalty.
Experience great service and potential savings of £873,120 with UW today.
£400 to help you switch: When you take a 3 or 4+ Service Bundle, we’ll give you credit up to £400 towards any termination fees (excluding Home Insurance) you have to pay your current providers. You’ll need to return any equipment and pay for services you used before you cancel. Additional requirements apply to customers who are tenants. Further terms apply see our Residential Products and Services terms and conditions here.
Energy: Save on average £48 per year on your energy bills when you take a variable energy service plus two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem’s typical domestic usage. Payment by Direct Debit. Correct as of 17/04/26. Contact us to verify.
Cheapest variable energy: when you take energy and two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem’s typical domestic usage. Payment by Direct Debit. Correct as of 13/01/26. Contact us to verify. See UW terms and conditions.
£400 to help you switch: When you take a 3 or 4+ Service Bundle, we’ll give you credit up to £400 towards any termination fees (excluding Home Insurance) you have to pay your current providers. You’ll need to return any equipment and pay for services you used before you cancel. Additional requirements apply to customers who are tenants. Further terms apply see our Residential Products and Services terms and conditions here.
30th Mar 2026: From April 2026, energy bills will go down due to policy changes. At the same time, UK gas prices have more than doubled since late February. What does this mean for you?
6 Feb 2026: On 26 November 2025, Rachel Reeves handed us her Autumn Budget. Lots of big announcements, but here’s the headline: from April 2026, the average home will save around £150 a year on energy.
20 Jan 2026 : As we look for cleaner, more sustainable ways to power our lives, wind energy has quickly become one of the most promising solutions.
21 Jan 2026 : Getting out of bed or off the couch on a cold day and setting your feet down on a warm floor can feel like a luxury.
UW Partners in and around are people just like you, who earn an extra income by introducing others to UW and helping them sign up as customers. They also help people to become a UW Partner and start earning an income by recommending UW to their friends and family.
Yes, of course – over 1,386,585 customers and 70,000 UW Partners already do. We’re also regulated by the energy regulator Ofgem, the telecoms regulator Ofcom, and the Financial Conduct Authority. We’ve been doing business for nearly three decades and are listed on the London Stock Exchange, which means we’re one of the UK’s largest publicly-owned companies.
Your gas and electricity energy services in will go live between two and five working days. We’ll keep you updated on any progress during this time.
Yes – switching energy suppliers in is a simple process. All you need to do is get a quote now to get started; then, we’ll contact your old provider on your behalf and get your services switched over for you. It’s that easy.
No. We work hard to ensure a seamless switching process between energy providers for our customers in so we can guarantee that there’ll be no disruption to your services.
No – in a few weeks, we’ll ask you for meter readings, at which point we’ll start billing you for your energy, and your current supplier will stop billing you. So you won’t pay for the same energy twice. Your old supplier will then arrange to send you a final invoice. We recommend leaving your Direct Debit in place until that invoice has been paid.
Smart meters are advanced devices that measure and record electricity and gas consumption in near real-time. Smart meters automatically send us your electricity and gas meter readings through secure wireless networks, so you don’t have to.
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