Website Tidy-Up

Description

I am looking for someone professional to go over my website in full detail with a careful eye.I am looking for advice on changing the colour scheme to suit the brand/trade that we offer.Also, I am missing out on opportunities where the bounce rate is high on certain pages, so I would want something added like pop-ups to grab the visitor's attention to make the customer make the call to us or fill in the form, maybe some sort of offer? I can provide the analytics if required.Also, I would like my logo slightly rebranded if possible. In a nutshell, I am getting a lot of hits but need the enquiry take-up to be much higher.
My only prerequisite for the seller is to be based in the UK due to the time zone and be 100% conversant in British English.
Best regards, Chris