Don't use repeaters each hop cuts the bandwidth in half
Use power line to connect to the router (for wired hosts) or have multiple AP's plus power line as the DS for your mobile devices.
Which band are you using now, 2.4 is slower but has better range 5Ghz is faster but shorter range also look at congestion are you using the same channel as the next house
Why can't you use your own router/ap? get one with external arenas and firmware (eg ddrwt) that can adjust tx power
Use power line to connect to the router (for wired hosts) or have multiple AP's plus power line as the DS for your mobile devices.
Which band are you using now, 2.4 is slower but has better range 5Ghz is faster but shorter range also look at congestion are you using the same channel as the next house
Why can't you use your own router/ap? get one with external arenas and firmware (eg ddrwt) that can adjust tx power