I have some potential work for a client who is a local window contractor. This is my first time approaching SEO from a local business perspective. Now if I search for broad terms like "window contractor", "replacement windows" etc., I get plenty of search volume and competition etc. But these are obviously too broad. So I imagine I need to be looking at keywords like "replacement windows sonoma" or "window contractors santa rosa" etc. But when I look at those, the daily Google search volume is 0, so it seems like a waste of time. Any suggestions on how to do meaningful keyword research for a local business? My main tool is Market Samurai. Thanks!