ok checked out your site:
http://www.thewindowwizard.biz
1. First things first, get to gumtree.com and craigslist.org and submit an entry for:
Abbey Wood, Albany Park, Bean, Bexley, Bexleyheath, Belvedere, Blackfen, Blackheath, Bluewater, Brands Hatch, Bromley, Charlton, Chislehurst, Crayford, Darenth, Dartford, Eltham, Enysford, Erith, Greenhithe, Greenwich, Grove Park, Hextable, Hither Green, Ladywell, Lee, Lewisham, Longfield, Meopham, Mottingham, Northfleet, Otford, Plumstead, St Paul's Cray, Sidcup, Slade Green, Stone, Swanley, Swanscombe, Thamesmead, Welling, Wilmington, Woolwich.
HOWEVER, i suspect you can only make 1 listing on each site, you better check it to avoid spam.
2. The domain name, although its got your company name in there, its a .biz. Not very easy to
a domain such as that high in the search engines (for popular terms and not just your business name).
Not saying its impossible, just not ideal but can be worked on as its got 'window' in the domain.
3. Title / keywords / Description:
<title>Window, door repairs | KENT | SE LONDON</title>
<meta name="Keywords" content="
window repairs, door reapairs, kent, se London, window wizard" />
<meta name="Description" content="Window Wizard repairs and works with doors and windows based in Bexleyheath, Kent " />
Now, thing to think about is which keywords your going to target, which will determine your
SEO strategy (including what you put in your title/meta keywords/description).
Considering your limited to 20 keywords per page, you really need to split your site into more pages.
For instance, a page for door repairs, you could use some of these as keywords:
DOOR REPAIRS
* Hinges
* Panels
* Handles
* etc.........
Also a page for window repairs: (by the way this div is out of alignment)
* Hinges
* Handles
* Air Vents
* ......
Also a page(s) for your areas you cover:
Abbey Wood, Albany Park, Bean, Bexley, Bexleyheath, Belvedere, Blackfen, Blackheath, Bluewater, Brands Hatch, Bromley, Charlton, Chislehurst, Crayford, Darenth, Dartford, Eltham, Enysford, Erith, Greenhithe, Greenwich, Grove Park, Hextable, Hither Green, Ladywell, Lee, Lewisham, Longfield, Meopham, Mottingham, Northfleet, Otford, Plumstead, St Paul's Cray, Sidcup, Slade Green, Stone, Swanley, Swanscombe, Thamesmead, Welling, Wilmington, Woolwich.
So basically, what im saying is you need to expand your site, and use each page for specific keywords.
Anyway i hope you get the jist, that would only be the start of the seo work, theres tonnes more but i would go into pages and pages about it on this thread.
If you want to contact me seperatly (PM) feel free. But its alot of work, especially your target audience.
Anyway, ill leave that food for thought.