The use of subdomains to improve SEO?

[Bristolweb]

A clients website which provide a number of trade services  which have a page for each service they provide for example: carpentry or electrician  or plumbing etc. currently these pages are found at domain.co.uk/bathrooms/ bathrooms.html

I am trying to optmise each page better as they are competing with other sites who for example  sell bathrooms rather than  bathroom installers or plumbers.

As part of the on page optimisation I plan to change  the page names and directory structure.

I had an idea to split the website down into subdomains  for various sections i.e for all their services

1. Create a sub domain  such as http://plumber.domain.co.uk

2.) upload the  relevant content (in this example the plumbing page)  to the sub domain location

3.) correct all the links to absolute URLs for each sub domain /

Will this help target  better use of keywords in the URL  in terms of SEO efforts ?

hope it makes sense

thanks

Darren

[anthonydnelson]

This is a technique I would only consider if your clients site is already highly authoritative (high PR, DA). Essentially, your splitting up one domain into a handful different subdomained websites.

When you have a very strong site and you split it into subdomains, you increase your chance of getting multiple spots in the SERPs. When you split a weak site into subdomains, you water down your authority and it will take extra link building to get each subdomain to rank really well.

Perhaps a better strategy would be to do a bit more keyword research and figure out what keywords to really go after with the current URL structure. Instead of going after something like 'bathroom remodeling' maybe you would be better served going after 'bristol custom bathroom remodeling' or something more specific. Sometimes you have to carve out a niche and get some links before tackling a more difficult keyword.