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I agree with Andy.  The problem with having two or more main sites is that you will end up diluting your efforts when you might be better putting all your eggs in one basket!  These efforts include, blogging, social media, content creation and backlinking.  Dedicated landing pages are definitely a good idea with plenty of quality chat about offering your services in the different areas.  Your backlinks will be better applied to one site, rather than two, unless you have a huge amount of resources to plough in.

Hi there If you configured this properly, I wouldn't worry about this at all. Check your internal links and sitemap to make sure that your URLs listed as a reflection of this www. version. Beyond that, you're all good, no need to block non www. Hope this helps! Good luck!