Mobile Deals in Chelmsford

Utility Warehouse

Experience exceptional mobile services with UW in Chelmsford.

Explore our range of SIM-only mobile plans that cater to every need, whether you require unlimited data for streaming or a competitively priced option for everyday use.

Our network boasts 99% coverage across the UK, ensuring reliable connectivity throughout Chelmsford.

By bundling mobile with other services, you could unlock even greater savings on your monthly bill.

With over 5,480 mobile customers in Chelmsford, the estimated total savings amount to £1,117,920 annually.

The legal bit

Mobile £204 saving: Unlimited compared against the closest equivalent unlimited data tariffs across 12 providers over a 12 month period. Price correct as of 22/09/2026. Excludes offers and promotional tariffs.

£13 on a 30 day rolling contract available to customers who also take Broadband, Energy or Insurance unless we offer the customer the Go Unlimited Tariff on a mobile-only basis through a sales channel selected by us.
Additional SIMs charged at £0/month for three months, then £13/month each. Terms and Fair Usage Policy apply.

Over 80 Awards and Counting

Here are a few things that make UW special

Have questions? Speak with our Partners today to learn more.

Beat rising bills with a savings guarantee

Get up to £400 to help you switch and £250 in Cashback Card welcome credit. Plus:

If you don’t save, we’ll pay double the difference
Our best ever priced Full Fibre from £23.95
The UK’s cheapest unlimited data mobile SIM
All helping unlock our best energy tariffs

The legal bit

£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. If you take a 3 Service Bundle, up to £200 of this credit towards a mobile handset/device termination fee is only available if your bundle includes at least one Unlimited SIM. 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.

Cashback Card Credit: New Utility Warehouse customers only, joining on or after 14 September 2026 paying via direct debit. Take 2+ eligible service types (Energy, Broadband, Mobile, Boiler & Home Cover) within 30 days and a UW Cashback Card to earn a Welcome Bonus of up to £250, paid in £50 monthly instalments. 12-month clawback applies if bundle services are cancelled. Terms apply.

UW Price Pledge: Eligible new customers (joining on or after 22 April 2024) 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 once a week, excluding promotional activities) or your actual Cashback saving if higher. Full details, eligibility and terms available here.

Don’t miss out

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.

Maximise savings with early termination fee support, welcome bonuses, free SIM deals and more.

The legal bit

UW Price Pledge: Eligible new customers (joining on or after 22 April 2024) 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 once a week, excluding promotional activities) or your actual Cashback saving if higher. Full details, eligibility and terms available here.

Peace of mind

Have a chat with no pressure, it doesn’t cost a penny

No repeating yourself. Speak to the same person every single time.

And relax. Seriously. We’ll handle the rest. Switches start in as little as 2 days.

The legal bit

£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 (joining on or after 22 April 2024) 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 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 06/07/2026. Contact us to verify. See UW terms and conditions.

Streamline your services

One bill – for all your home services.

One account – with only one password to remember.

One number – for our award-winning Customer Services team

Rated by experts

Helping households with bills for 30+ years. With over 80 awards in the past 10 years alone.

Voted UK’s best value energy supplier. Over 60,000 Trustpilot reviews, rated Excellent.

Five star rated building and contents home insurance plus boiler and home cover.

The legal bit

Awards: Our Home Insurance cover has been given five stars by independent consumer experts, Defaqto (2026) and Moneyfacts (2026).

Disclaimer: Insurance is an FCA-regulated product. As a result, UW Partners are not able to advise you about, nor answer any questions about, any of the UW insurance products. The role of UW Partners is limited to providing you, via the screen, with information about the UW insurance products. You can contact UW directly on 0333 777 0777 if you have any questions.

How does UW work?

UW provides an extensive range of mobile solutions in Chelmsford.

By bundling your mobile services with energy or broadband, you could unlock estimated savings of up to £259 annually.

Our customers benefit from a simplified monthly bill and have reported significant value from their combined services.

Speak to one of our 773 Partners in Chelmsford who will help you discover a package that’s perfectly tailored to your needs.

The legal bit

Save £309 per year: 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 22/09/2026. Contact us to verify.

Broadband: Switching to UW Full Fibre broadband after your initial contract with current supplier has ended could save you £57.54 a year. This calculation is based on the median UW saving of our Full Fibre 150 tariff vs BT, EE, Plusnet, Talk Talk, Virgin and Vodafone’s closest equivalent tariff (£176.42) over three years. Correct as of 22/09/2026

Mobile: Save £204 with Go Unlimited compared against the average of the closest equivalent 30 day rolling unlimited data tariffs with the four major network providers over a 12 month period. Price correct as of 22/09/2026. Excludes offers and promotional tariffs.

What our customers say

Partners in and around Chelmsford

Takeley

Hello, I’m Lauren. I’m a full time mummy living in Takeley, Essex. I joined UW in January 2026 and it’s become my full income source and has given me a purpose I didn’t know I needed. I started as. UW customer myself and now I absolutely love helping people save money and simplify their bills. I have grown my business through recommendations, all crediting my warm and friendly nature and genuinely enjoying a chat with somebody relatable who can openly and honestly answer any questions, all whilst making the whole process stress free and easy to understand.

Frinton on Sea

I am a mum from Essex who wanted to earn an additional income around my son. I was shown the UW opportunity and couldn’t believe the savings I made on my bills but more importantly that I could work from home in the nooks & crannies of my day & earn a meaningful extra income. Prior to having my son, my work always involved helping people. I worked for many years in HR but it wasn’t very flexible. UW has been life changing for me & what I find rewarding now is mentoring people to create a life in which they can have time and financial freedom too. Let’s chat as I would love to tell you more.

Maldon

I’m a family man and my children are my life, my world, my everything. UW gives me the flexibility and freedom to be the dad that they deserve. When Covid struck, my partner and I got to work and realised the power of UW. We had basically been given an opportunity that we couldn’t afford to let slip through our fingers both financially and for a better work-life balance. This is it, I feel I’ve found my calling in life by helping people save and earn, all whilst building that dream lifestyle.

Compare mobile deals to save up to £204 a year with Unlimited Max

Unlock endless browsing and streaming with Go Unlimited or stick to Go Essential for our most affordable option. Plus, get bigger savings for the whole family when you add extra SIMs for three months.

Go Unlimited | £13

Save £204 a year compared to major providers.

Unlimited monthly data
99% UK coverage
Works on 4G & 5G
Wi-Fi Calling
Monthly rolling contract
EU roaming included
Up to 3 extra SIMs FREE
500GB fair use policy applies

Go Essential | £6

Our cheapest SIM-only deal from only £5 to £6 a month.

10GB of monthly data
Works on 4G
Wi-Fi Calling
Monthly rolling contract
EU roaming included
Save more when you combine Mobile with other UW services

The legal bit

The UK’s best Unlimited deal on 5G Unlimited SIMs: Based on price, speed and reliability.

Price: UK’s cheapest unlimited SIM package in the UK £13 on a 30 day rolling contract compared to 12 providers (excluding introductory or time limited offers). Prices correct as of 01/09/2026. Only available to customers who also take Broadband, Energy or Insurance unless we offer the customer the Go Unlimited Tariff on a mobile-only basis through a sales channel selected by us. Additional SIMs charged at £0/month for three months, then £13/month each. Terms and Fair Usage Policy apply.

Mobile £288 saving: Unlimited compared against the closest equivalent 30-day rolling unlimited data tariffs across EE, O2, Three, and Vodafone over a 12-month period. Price correct as of 01/09/2026. Excludes offers and promotional tariffs.

£13 on a 30 day rolling contract available to customers who also take Broadband, Energy or Insurance, unless we offer the customer the Go Unlimited Tariff on a mobile-only basis through a sales channel selected by us.

Additional SIMs charged at £0/month for three months, then £13/month each. Terms and Fair Usage Policy apply.

Go Unlimited tariff: Our Go Unlimited plan gives you access to 4G/5G with a compatible handset. Inclusive EU Roaming, subject to a 14GB roaming cap. Data consumption is subject to a personal usage cap of 500GB. For further details, please see our terms and conditions and our Mobile Fair Usage Policy. EU roaming on our Essential 5G plan subject to your 10GB data allowance. Our Essential 5G gives you access to 5G with a compatible phone.

Best UW mobile deals in Chelmsford

UW offers exceptional mobile deals in Chelmsford.

For just £13 a month, you can access our Go Unlimited SIM, providing unlimited data, texts, and minutes to keep you connected.

Plus, adding additional Go Unlimited SIMs is straightforward, with each one starting from £0 per month.

This allows you to stay connected with the entire family while potentially lowering your monthly mobile expenses.

You could even consider bundling with energy and insurance services for further savings.

The legal bit

The UK’s best Unlimited deal on 5G Unlimited SIMs: Based on price, speed and reliability.

Price: UK’s cheapest unlimited SIM package in the UK £13 on a 30 day rolling contract compared to 12 providers (excluding introductory or time limited offers). Prices correct as of 01/09/2026. Only available to customers who also take Broadband, Energy or Insurance unless we offer the customer the Go Unlimited Tariff on a mobile-only basis through a sales channel selected by us. Additional SIMs charged at £0/month for three months, then £13/month each. Terms and Fair Usage Policy apply.

Go Unlimited tariff: Our Go Unlimited plan gives you access to 4G/5G with a compatible handset. Inclusive EU Roaming, subject to a 14GB roaming cap. Data consumption is subject to a personal usage cap of 500GB. For further details, please see our terms and conditions and our Mobile Fair Usage Policy. EU roaming on our Essential 5G plan subject to your 10GB data allowance. Our Essential 5G gives you access to 5G with a compatible phone.

Why choose UW for Mobile?

Our SIM-only packages are second to none. Here’s what’s included in both:

No speed restrictions
Strong 99% network coverage across the UK
Roam like you’re in Chelmsford in the EU
Wi-Fi, 4G and 5G calling on Go Unlimited
Flexible monthly contract
Up to £400 towards contract exit fees

The legal bit

Go Unlimited tariff: Our Go Unlimited plan gives you access to 4G/5G with a compatible handset. Inclusive EU Roaming, subject to a 14GB roaming cap. Data consumption is subject to a personal usage cap of 500GB. For further details, please see our terms and conditions and our Mobile Fair Usage Policy. EU roaming on our Essential 5G plan subject to your 10GB data allowance. Our Essential 5G gives you access to 5G with a compatible phone.

£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. If you take a 3 Service Bundle, up to £200 of this credit towards a mobile handset/device termination fee is only available if your bundle includes at least one Unlimited SIM. 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.

Pick the SIM option that works best for you

UW offers some of the best mobile deals with options that keep everyone connected in Chelmsford.

With our Go Unlimited SIMs, you could ensure that no one in your family runs out of data, avoiding any extra charges.

Prices start at just £13 per month, and you can add up to three more SIMs from £0 each per month.

Stay connected, stay worry-free.

A great value SIM-only deal in Chelmsford

UW offers fantastic mobile options in Chelmsford.

Our Go Essential SIM only plan is perfect for those looking to stay connected with 10GB of data available from just £6 a month.

Enjoy excellent value and the freedom to keep in touch with those who matter most.

The legal bit

Go Essential SIM: Go Essential £6 on a 30-day rolling contract, terms apply.

Peace of mind promise

When you choose UW for your home services in Chelmsford, you’ll always receive great value with a single, manageable bill.

We contribute up to £400 towards any early termination fees with your current suppliers, and you have 30 days to change your mind without penalty.

Explore our full range of services today.

The legal bit

£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. If you take a 3 Service Bundle, up to £200 of this credit towards a mobile handset/device termination fee is only available if your bundle includes at least one Unlimited SIM. 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.

More Partners in and around Chelmsford

Our Partners are a team of local Utility Warehouse experts up and down the country, who help people save money on their bills. With 70,000 Partners across the UK, there’s someone nearby who’ll be happy to chat.

Areas in and around Chelmsford

Great Baddow
Broomfield
Writtle
Springfield
Danbury
Moulsham
Galleywood
Boreham

Nearby areas Chelmsford

Mobile Guides

Frequently Asked Questions

Who are Utility Warehouse?

We’re the UK’s only genuine multiservice provider. We help people save on their household bills by bundling their energy, broadband, mobile and insurance into one. We offer guaranteed savings. We’re trusted by over 1,386,585 customers and are rated Excellent on Trustpilot.

What’s a UW Partner?

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.

Can I trust you?

Yes, of course – over 1,386,585 customers and 80,000 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.

How does a SIM only deal work?

A SIM-only deal gives you data, minutes, and texts for a set monthly cost. However, you don’t get a new phone like you would with a mobile phone deal – you just get the SIM.

Can I use my own phone when I join UW?

Of course. You can use our mobile SIMs with any unlocked handset or any phone on the EE network too.

The easiest way to tell if your phone is unlocked is by inserting a different SIM card from another network into your mobile. If you’re able to connect to the internet, make calls, and send text messages, your phone is likely unlocked.

If you don’t have another SIM card from a different network provider, you can also check by going into your phone’s settings.

Can I keep my phone number when I join UW?

Yep, simply contact your previous network provider or text ‘PAC’ to 65075 to get a code which will allow you to bring your current number over to your new SIM. This won’t disrupt your service either. Find out more about how to keep you current mobile number.

What does unlimited data mean?

Unlimited data means that you don’t have a cap on your data allowance each month in and the rest of the UK. There are no restrictions on how much data you use, so you won’t have to worry about using up all your allowance.

Our Unlimited data, calls and texts SIM-only plan is perfect for surfing the internet, taking video calls, or even streaming media, as you can use as much as you need.

Can I use my unlimited data abroad?

We’re offering EU roaming as part of our Unlimited tariff, so you can take your unlimited data abroad and use up to 14GB of it at no extra cost. It’s part of our Roam like Home service, which lets you use your allowance in 45 locations across Europe. You can also send texts and make calls back to the UK as you would normally with your allowance. Our Unlimited tariff has no data usage cap when browsing in the UK.

What is a family plan?

A family plan is a special family SIM-only deal that covers multiple SIMs. With a family plan, you can choose a deal that ensures your whole household is connected, all as part of a single convenient bill.

All your home services in one

Supplying gas and electricity in Chelmsford

Save over £259 a year when you switch your broadband and mobile to UW.

The more services you bundle with UW, the more you save on your energy.

Award winning energy deals for Chelmsford

It’s not just our great energy prices that make us stand out as one of the best energy suppliers in Chelmsford. We’ve been awarded Best Value for Money and Best Customer Service at the Uswitch Energy Awards 2024, and runner-up in the Overall Customer Satisfaction category.

It’s the eighth year in a row we’ve won at the Uswitch Energy Awards. That’s over 80 industry awards in the past decade UW have picked up.

Recently, we also secured the highest overall score for energy suppliers in Which?’s latest annual energy firm rankings. UW scored 75% overall – coming ahead of 17 other energy suppliers.

Take control of your energy costs with a smart meter

UW customers across Great Britain can upgrade to a smart meter for free. With a smart meter, you get accurate insights about your energy usage so you can take steps to save money. And you won’t have to worry about taking manual readings ever again.

Switch to the cheapest energy provider in Chelmsford

Switching your utility supplier in Chelmsford to UW is simple. And remember – the more services you take, the more you save.

So what next? Get your quote after choosing your tariff, we’ll contact your current energy supplier to let them know you’re switching and then in 2-5 working days your new gas and electricity services will be live.

All your home services in one

Best UW mobile deals in Chelmsford

We have a great value Unlimited mobile deal in Chelmsford. For just £23 a month, you can get unlimited data, texts, and minutes.

And thats just for your first Unlimited+ SIM – when you take a second, third or fourth Unlimited+ SIM, they are just £0 a month.

All of our mobile SIM deals in Chelmsford, are on a flexible contract, so you can always be sure you’ve got the package that works best for you.

And you always have the option to either keep your current phone number or get a new one – the choice is yours.

Why choose UW for Mobile?

Pick the SIM option that works best for you

A great value UW SIM-only deal in Chelmsford