Poor WiFi connection

[Sips]

On one side of my house the WiFi is terrible. I don't live in a mansion. I've raised this before and was told that the router I have is the best. Is there another booster that can be sent out? I had great service with BT for the last 10 years. Just moved to you recently. It currently reads as 19mgb. I have a screen shot of the reading. 

[TimmyBGood]

@Sips 

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, and Max pods acquired that way won't work at all. 

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.