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The only thing I can think of is if you are located in the UK. It might of affected your rankings if the firewall uses US Data centres? If this is your site: http://bearsbys.com/ You are using a .com domain for a UK website so having your IP change to US could mess things up a little. The first thing I would do is go to Google Webmaster Tools and make sure you have set your Location to the United Kingdom. Check to see if your site is hosted on a UK Hosting provider. Then check and see if Sucuri only uses US Data Centres.

Personally I would doubt that you would get penalised for it especially as these are genuine reviews. We use a similar tactic here and post individual user reviews gathered locally on site and then also feature aggregate review for an overall score located on a third party site. As you are using TrustPilot which is a Google Partner for reviews, I would imagine this will only benefit you in the long run, but check with them about featuring their logos on your site. Some review sites are quite particular about how you display their logo/artwork and may also require a link back  Due to TrustPilot being a Google Partner, you also have the added benefit of having star ratings in any Google Adwords activity you may be doing, thus helping to further increase their positive impact on CTA's and conversions when landing. Hope that helps. As per Robert, just make sure you get your schema correct to ensure accurate portrayal of the review data so it is picked up. Finally, there is a chance that you will get your review snippet on Google, but this is not guaranteed even if your schema markup 100% correct. Good luck Tim

Hi Patrick, Thanks so much for replying. So, if for example i had a main parent page called house removals which is effectively where we explain the business and how it works and what we do. Then just to appear in some more local searches we had pages coming off of it called 'house removals london', 'house removals birmingham' and 'house removals manchester'. The pages that are ranking are the location specific pages. If i was to put a canonical tag to link them back to the house removals page would we lose any of our ranking and would the house removals page effectively just take the place of the sub page? I'm a little bit nervous to put canonical tags in because it's taken me a while to get us ranking so well. Thanks for all the other advice I will definitely have a look through, Cheers, Robert