Make our Wordpress site mobile responsive (properly!)

Our website (http://tinyurl.com/l5aefy6) is already mobile responsive. If you browse the site and narrow the width of your browser you'll see that it does scale down and change depending on the browser width.

However, this isn't implemented very well. There are some widths where the site is unusable as it's at an "in-between" stage.

Can you fix this so it works as it should? Here's an example, of a site that works well - http://bb4ck.org/ . You'll see how the changes are fluid and dynamic and at no point is the site unusable.

We have three "versions" of the site. Desktop, tablet and mobile. We need to flow between these three in a fluid way rather than it being rigid as it currently is. Different elements should probably be adjusted at different times, so that it doesn't strictly have three versions.

I'm guessing it's a case of getting rid of the existing responsive elements and starting again? I'm not sure though.

Please bid on this if you know you can do the work to a high standard (we've already got a secondary standard responsive site, we're obviously doing this to improve upon it so that it works perfectly, not second-rate). Please send through examples of similar work you have carried out.

If you need any further information to put together a quote please get in touch.

Thanks,

Chris