Good company to replace a portion subfloor and drywall in bedroom.

My son urinated in the corner of his room. We need to rip out the subfloor and the lower part of the drywall. I would like a professional to do the work so I don't mess anything up.

Can anyone recommended a company I should work with?

Edit:

Pictures of the damage, I'm not sure just cleaning the area will get rid of the smell. http://imgur.com/Dr3Wfis http://imgur.com/U06COgA