Hi David,
Are you saying that the content on my site is affecting which keywords google will give me in it's places listings?
My response was more a hint towards not worrying too much about the terms and to focus a bit more on an overall user so if you want to target both terms it's not unfeasible to have great pages about both services, responding directly to the questions its difficult to say but in theory yes but its a bit harder than that (sorry I can't help more here) You should definably check out Miriam Ellis response there is some excellent reading to do there.
Can you explain what you mean about the meta description a little more?
it was a hint: Looking at your META description I don't think its working as hard for you as it could be, think about CTR etc. compare it to the Meta's on page 1 etc.
Sorry if its not super helpful SEO especially local is tricky and there is no one thing you can do to make it work well, like what I tried to get with my answer try not to worry about your site as much and think of it what a user may want and work from there.