Poor Broadband speed on top floor of house

[TC72]

Broadband is really poor on the top floor of my house (3 storeys) TV pixelation at times and wifi on phone v poor. 
any ideas? 

[Greenfingers001]

Hi there @TC72 , I’ve escalated your post to our Community Messaging team who will invite you to a private chat shortly and help you with this. 

Just look out for the colourful bubble to start the conversation.

Here's more information on how Community Messaging works - https://helpforum.sky.com/t5/Did-you-know/Escalating-a-post-to-a-Sky-expert/ba-p/3711147