Desperate to get WiFi strength up

[Atexf06]

Engineer visited and moved things about but made it worse, have spent  hours today again with sky trouble shooting, sky say all ok but it isn't, very unstable and weak, phones always switch to i4g and tv buffers. Sits on 1 and most strength is  2 bar, Have lodged a complaint and ultimately will have to leave Sky after 15 years. Travelling 40 miles to office tomorrow because  I can no longer hold a teams call from home any more. Very upsetting, cried about it today and no one can seem to help. Does anyone know of a company that can help get sky working or any equipment we can buy that may help? 

[jamesn123]

@Atexf06 

How long has this been happening for? Has anything changed since then?

[Atexf06]

Thats just it, nothing has changed. It is bizaree. Have ordered a booster and powerline boosters this morning to see if that helps