Howdy from Dallas!
For what it is worth, you have 2 pages that you want to rank for the key term, but which one? I took a quick first glance at them and here is what I saw (this was quick first glance remember).
On both of the pages you mention, you only have "Seo Houston" in the title and URL and don't mention it anywhere else on the page with the exception of having your Houston address in the footer. Just glancing at your pages with my human eyes, I cannot see anything on the page that talks about why you are the best SEO in houston.
Your pages, read to me (with a quick glance) that you offer great SEO services and have great SEO resources, but not for houston per se. You competitors do work SEO Houston into the text a lot to the point of being annoying, but at least I could see quickly that they service Houston.
I was thinking, it is a shame he does not have some case studies on that page that talk about what he did for some Houston businesses, that would be a good way to work Houston into the copy with our looking spammy. On second look of your SEO Houston page, I saw the links to the case studies. Now, if I want to see the case studies, you take me to another page, plus I cannot tell by reading the original page if these are Houston based businesses or not. You might be helping some business from New York City for all I know!
I then thought, lemme find out more about this guy, he is probably pretty good, and I go to the about us page. I see the item about the Houston Business Journal, and I think, that info should be on his SEO Houston page, a natural thing to talk about that can pull in the key phrase. I go back to your Houston SEO page a third time and then notice the H1 tag. I think I scrolled past it the first time as I looked at the graphics on the page and scanned.
I went back to writing this response and then looked at the page the fourth time and see, a-ha! SEO houston is in the copy 1x and among all the logos at the bottom there is a logo to the Houston Business Journal.
I hope this makes sense, as a user, I had to do a lot of work to see that you specialize in SEO in houston. I do not think you need to you do not need to H-Town, Hustle Town or Clutch City the heck out of your copy. You have all the elements, but I would say it needs a little more work to find a happy medium between what you have now and how your competitors use the term.
Check out the 5 second test at UsabilityHub http://fivesecondtest.com
If the user cannot tell in 5 seconds what you offer, then tweak the copy until they do without overkill. That would be my first step before any backlink analysis or speed testing etc. I think you have awesome stuff, it is just not hitting me as quickly when I first visit the page.
Good luck!
