I looked at the site, I really like the visual appearance. I did not look into much of the SEO of it, but I did notice an opportunity for improvement.
On your services page you list all your maintenance and landscaping services available. By making a page for each service an making the list a bunch of links to those specific pages is a great way to focus right down to prime keywords uniquely targeted to each service.
Each and every page on a website is a potential entry point for a customer, each with its very own targeted keywords. Look at Wikipedia for instance. Search Google for lawn mower and bang they are at the top. search Google for Mobile phone and they are on top. See where I am going with this?