I am sorry you always get a weak signal at your house. Do you know what type of coverage you are in? www.sprint.com/coverage. Can you please provide me with some cross streets or a business address close including the city, state and zipcode so I can check the performance of the towers?
I am willing to bet Sprint is going to come back and say its upgrades in your area. You can buy a device that translate your phone signal into your internet connection if you want from Sprint for like $100.