Hello, SEO pros,
We need your help with a case ↓
Introduction:
Our website allows individual contractors to create a webpage where they can show what services they offer, write something about themselves and show their previous projects in pictures. All the professions and services assigned accordingly are already in our system, so users need to pick a profession and mark all services they provide or suggest those which we missed to add.
We have created unique URLs for all the professions and services. We have internal search field and use a autocomplete to direct users to the right page.
**Example: **
PROFESSION
Carpenter (URL: /carpenters )
SERVICES
Decking (URL: /carpenters/decking)
Kitchens (URL: /carpenters/kitchens)
Flooring and staircases (URL: /carpenters/flooring-and-staircases)
Door trimming (URL: /carpenters/door-trimming)
Lock fitting (URL: /carpenters/lock-fitting)
Problem
We want to be found by Google search on all the services and give a searchers a list of all carpenters in our database who can provide a service they want to find.
We give 15 contractors per page and rank them by recommendations provided by their clients.
Our concern is that our results pages may be marked as duplicate since some of them give the same list of carpenters. All the best 15 carpenters offer door-trimming and lock-fitting. So, all the same 15 are shown in /carpenters, /carpenters/lock-fitting, /carpenters/door-trimming.
We don't want to be marked as spammers and loose points on domain trust, however we believe we give quality content since we gave what the searchers want to find - contractors, who offer what they need.
**Solution? **
- Noindex all service pages to avoid duplicate content indexed by Google
OR
- rel=canonical tag on service pages to redirect to profession page.
e.g. on /carpenters/lock-fitting page make a tag rel=canonical to /carpenters.
OR
- no worries, allow Google index all the professions and services pages. Benefits of indexing it all (around 2500 additional pages with different keywords) is greater than ttagging service pages with no index or rel=canonical and loosing the opportunities to get more traffic by service titles.
We need a solution which would be the best for our organic traffic 
Many thanks for your precious time.
