If this is your first attempt at designing a website, it's a good one. I'd agree with everyone's comments, needs a logo, images, scroll bar sorting so you can see text without using scrollbar.
What software did you use? Or was website template software you used? Navigation is fine, I can get around the site okay.
From a search engine angle though you might want to think about how you name the pages, for example /index_files/Page410.htm might be better as /cleaning-staff/cleaners.htm. At the top of the page in the code you will see < title > < /title > in between these two tags, enter words which you would expect people to use to find your website on the search engines.
Once your website is designed then read up on how to optimise your website in the search engines.
Darren