The WiFi connection is very weak in my bedroom.

[Rach49]

WiFi is weak in my bedroom. The router is downstairs in front room on the right. My bedroom is on the first floor on the left of the house. 

[TimmyBGood]

@Rach49 

Sky loans wireless booster hardware free under the terms of the 'WiFi Guarantee' element of the legacy 'Broadband Boost' add-on and the 'Enhanced Wall to Wall WiFi Guarantee' part of the 'WiFi Max' subscription supplement: they don't otherwise provide or sell boosters except to resolve issues with Sky Q. Phoning Sky to go through a telephone diagnosis is required to have a booster or pod allocated to the account. Inevitably some  Sky booster hardware has leaked onto a certain auction site and elsewhere online, but Sky won't offer support with using these. 

Confusingly the default 'Wall to Wall WiFi Guarantee' bundled with all new Sky Broadband orders where Boost or Max is not added by the customer doesn't actually provide booster hardware, and is essentially a sales lead generator for the supplements mentioned above plus a one month broadband subscription refund.

[FLC]

@Rach49 

Rather than paying "rent" endlessly for for a Sky add-on, maybe look at purchasing a powerline adapter with WiFi, such as the TP-Link TK-WPA7517. This creates an ethernet connection between your router & where you need signal, by using your mains wiring.