Does your broadband provider actually guarantee your Wi-Fi?
Some providers guarantee only the broadband speed reaching your router. Others sell a separate whole-home Wi-Fi guarantee. Check what your provider actually promises.
Tell us what's wrong in your own words — speak it or type it — and we'll tell you what your provider actually promises.
WiFiXpert answers from providers' published Wi-Fi promises, last checked recently. Always check your provider's current terms before making a claim. This is technical guidance, not legal advice.
Broadband speed is not Wi-Fi speed
Broadband speed
The connection reaching your router.
Wi-Fi speed
The wireless connection between your router or mesh system and your devices.
Good broadband does not automatically mean good Wi-Fi.
Show the technical detail▾
A gigabit line ends at the router. From there the signal has to pass through walls, floors and furniture, share airtime with neighbouring networks, and reach devices that may only support older Wi-Fi. That is why a room can measure 12 Mbps on a 900 Mbps package. Provider guarantees deal with this by setting a low minimum per room — typically 10 to 30 Mbps — rather than promising your package speed everywhere.
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UK broadband providers and their Wi-Fi guarantees
Provider
Wi-Fi service
Monthly cost
Wi-Fi promise
If it fails
Score
WiFi Max
£8/mo
At least 30 Mbps per eligible room
Up to £100 bill credit if 30 Mbps still cannot be met in an eligible room.
8.6/10
Pro II WiFi Guarantee
Included
At least 25 Mbps per eligible room
Money back on the Pro II element if the promise cannot be met.
7.7/10
Sky WiFi Max
£6/mo
At least 25 Mbps per eligible room
Money back under the plan terms if the promise cannot be met after troubleshooting.
7.4/10
EE WiFi Enhancer / Wi-Fi Guarantee
Included
At least 10 Mbps per eligible room
Extra extenders first, then a money-back remedy or the right to leave under the plan terms.
6.6/10
BT Complete Wi-Fi
Included
At least 10 Mbps per eligible room
£20 back if the promise still cannot be met after BT's process.
6.3/10
Total Home Wi-Fi
£5/mo
Coverage promise, no speed figure
Extra boosters, then the add-on can be cancelled. No published cash remedy.
3.4/10
Super Fibre / Boost add-ons
—
No whole-home Wi-Fi promise
Broadband speed remedies only.
1.0/10
Smart WiFi
£5/mo
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.9/10
Whole-home WiFi add-on
£5/mo
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.9/10
YouMesh
Included
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.9/10
Zen mesh add-on
£5/mo
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.8/10
WiFi Extenders
£5/mo
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.8/10
Whole Home WiFi
£5/mo
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.8/10
Hub Two Wi-Fi
—
No whole-home Wi-Fi promise
Broadband speed remedies only.
0.5/10
None
—
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
None
—
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
None
—
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
None
—
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
None
—
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
Lit mesh add-on
£5/mo
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
None
—
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
None
—
No whole-home Wi-Fi promise
Broadband speed remedies only, under the Ofcom speeds code where the provider has signed up.
0.5/10
The WiFiXpert Guarantee Score measures the strength of the provider's consumer Wi-Fi promise, not network speed or reliability. Terms checked 11 September 2026.
What does a paid Wi-Fi add-on really cost?
Cost of paid whole-home Wi-Fi add-ons
Provider
Monthly
A year
Over 24 months
Sky · Sky WiFi Max
£6
£72
£144
Virgin Media · WiFi Max
£8
£96
£192
TalkTalk · Total Home Wi-Fi
£5
£60
£120
Zen Internet · Zen mesh add-on
£5
£60
£120
Community Fibre · WiFi Extenders
£5
£60
£120
Gigaclear · Smart WiFi
£5
£60
£120
Hyperoptic · Whole-home WiFi add-on
£5
£60
£120
Lit Fibre · Lit mesh add-on
£5
£60
£120
WightFibre · Whole Home WiFi
£5
£60
£120
What else could that budget buy?▾
Provider-managed Wi-Fi. You keep one point of contact, the kit is supported, and there is a published promise to hold them to.
Retail mesh. A one-off spend you own outright, but you also own the support and the setup.
Independent diagnosis first. Many weak rooms come down to placement or a single old device. We would rather you spent nothing than bought hardware you did not need.
Provider by provider
BT BT Complete Wi-Fi guarantee
Cost
Included with Full Fibre packages that bundle Complete Wi-Fi; an add-on on some older plans.
Minimum Wi-Fi promise
At least 10 Mbps per eligible room
Equipment
Up to 3 boxes
Claim process
Report it to BT, complete their checks, accept extra discs, then request the money-back remedy.
Compensation
£20 back if the promise still cannot be met after BT's process.
Cancellation rights
The add-on can normally be cancelled; the broadband contract continues.
Exclusions
Broadband faults and outages; Gardens, garages and outbuildings; Your own routers, extenders or powerline adapters; Devices that cannot use the newer Wi-Fi bands
WiFiXpert Guarantee Score 6.3/10 · Source: BT official documentation · Last checked 11 September 2026
EE EE WiFi Enhancer / Wi-Fi Guarantee guarantee
Cost
Bundled with the higher EE broadband tiers; an add-on on entry plans.
Minimum Wi-Fi promise
At least 10 Mbps per eligible room
Equipment
Up to 3 boxes
Claim process
Report through the EE app or support, accept extenders, then ask for the guarantee remedy.
Compensation
Extra extenders first, then a money-back remedy or the right to leave under the plan terms.
Cancellation rights
Contract exit may be available under the terms.
Exclusions
Broadband faults; Third-party routers and extenders; Gardens and outbuildings
WiFiXpert Guarantee Score 6.6/10 · Source: EE official documentation · Last checked 11 September 2026
Sky Sky WiFi Max guarantee
Cost
Around £6/month as an add-on; included with some Sky Full Fibre packages.
Minimum Wi-Fi promise
At least 25 Mbps per eligible room
Equipment
Up to 3 boxes
Claim process
Raise it with Sky, complete the checks, accept pods, then request the money-back remedy.
Compensation
Money back under the plan terms if the promise cannot be met after troubleshooting.
Cancellation rights
The add-on can normally be cancelled; the broadband contract continues.
Exclusions
Broadband faults and outages; Your own routers, extenders or powerline adapters; Gardens, garages and outbuildings; Rooms agreed as excluded
Which UK broadband provider has the best Wi-Fi guarantee?
Virgin Media publishes the clearest promise — at least 30 Mbps in every eligible room, with a bill credit of up to £100 if it cannot be met. Sky and Vodafone publish 25 Mbps, BT and EE publish lower figures. Altnets rarely publish any Wi-Fi guarantee.
Does my broadband contract guarantee Wi-Fi speed?
Usually not. A standard broadband contract covers the speed reaching your router. Wi-Fi around the home is only guaranteed if you have a specific whole-home Wi-Fi product such as BT Complete Wi-Fi, Sky WiFi Max or Virgin Media WiFi Max.
Can I leave my ISP because of poor Wi-Fi?
Only in limited cases. Some providers allow you to exit if a published minimum speed to the router is missed. Poor Wi-Fi in one room does not normally create an exit right, though the Wi-Fi add-on can usually be cancelled.
Does Ofcom guarantee Wi-Fi speeds?
No. The Ofcom Residential Broadband Speeds Code relates to the speed delivered to your router or hub, not the wireless performance around your home.
How do I prove my Wi-Fi is too slow?
Test in the problem room and next to the router, at least twice, including a busy evening. Record the date, time, device and room, and keep the results together with the provider's published threshold.
What is the difference between broadband speed and Wi-Fi speed?
Broadband speed is the connection reaching your router. Wi-Fi speed is the wireless link between your router or mesh system and your device. Good broadband does not automatically mean good Wi-Fi.
WiFiXpert provides independent technical guidance and comparison information. Provider eligibility, guarantees, credits and cancellation rights depend on your individual package, contract date, equipment and provider terms. Always check the provider's current official terms before making a contractual claim. This is not legal advice.