I think you're having trouble with the terminology.

You already have 220v at your house. Everyone does unless they live in a mobile home powered by an extension cord from their parents' house. Basically how it works is that your breaker box get two legs, each 110v. If you use one leg only for a circuit, it's a 110v circuit. If you use both legs (with a double/two-pole breaker) it's 220v.