SEO & link building for a refrigeration and air conditioning website

I have a website called chillzoneni (dot) [login to view URL] and I need the website optimized for keyword and phrases such as refrigeration in northern ireland air conditioning ni air conditioning belfast refrigeration belfast air conditioning services refrigeration ni things like this needs to be optimized, I like to think I know a lot about SEO, but just don't have the time with my other projects and i think white hat link building is important for this website, i don't have the resources for this.