The working from home thread: tips and advice

will that cover the whole place then? its only a 2 bed...

Probably. Maybe. Depends. Thick walls, long floor plans or loads of foil backed materials can be a hinderance. You can commission a survey or just buy an extra mesh node.

every room also has these phone line outlets too. wonder if i should try plugging another router in downstairs/if that would work....?

Phone wires are usually not enough pairs for gig and wired in parallel rather than a star. They are typically lower quality too, eg Cat3. I have run 100baseT over phone wiring and it worked well but requires a bit more effort.