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About First Utility

First Utility offers some of the cheapest gas and electricity tariffs on the market.

Find out quickly if you can save money by switching your gas and electricity to us.

Save Big On Energy & Get Free Heater Control

First Utility are the first UK utilities company to combine free residential Smart Meters with affordable dual fuel.

Our free Smart Meters automatically read and report your home energy usage meaning that you no longer receive estimated bills you are only charged for the gas and electricity you use

Spend less on what you need and more on what you want.

Low priced gas and electricity tariffs
Protection against price rises with our fixed deals
Monthly billing so you can stay on top of your spend

Manage your account from anywhere in the world.

An easy-to-use app for on-the-go control
Insights into your usage with our energy efficiency tools
Energy saving tips to help lower your spend

We want change to make things better for you.

Our ‘Fight the Power’ campaign led to faster switching
We want to scrap variable tariffs across the UK
We want to give you full control of your energy


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VoucherandDiscountCodes LTD. Registered Office 54-56 Ormskirk Street, St. Helens, Merseyside, WA10 2TF Registered in England Company Number 06584950


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First Utility Voucher and Discount Codes

Check out our most recent active voucher codes and discounts for First Utility from 2019...

First Utility VOUCHER and DISCOUNT codes - deals and offers

First Utility

Expires: 14th October 2019

First Utility Expired Voucher and Discount Codes

Try our expired voucher and discount codes for First Utility, sometimes they still work or start working again!

Short fixed term tariff product - £40 (Dual Fuel Only) - Long term £90 See more

First Utility

Expires: Expired


First Utility

Expires: Expired

Fix your Energy Prices until January 2019 PLUS FREE £100 Amazon Gift Voucher

First Utility

Expires: Expired

Fix your Energy Prices until the end of September 2018 SAVE £284

First Utility

Expires: Expired

Refer a friend and get a £20 Amazon gift certificate FREE

First Utility

Expires: Expired

Save up to £265 a year with First Utility

First Utility

Expires: Expired

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