Similar to you, I did once have a work week in Northwich. I reviewed a few ladies from Whispers quite a while ago, check them out. What I would say is that they are a classic parlour who knock about 15 years off the age of their ladies. Their website is bad.
This is why I stick with a couple of the Crewe parlours, good quality websites, more honesty on their profiles, but still make sure to read reviews here. I'm not sure what the distance between those two places is (stick it in your satnav and find out) but it will be worth the travel.
There are also parlours in South Manchester that should be accessible to you from there with a short drive. Boudoir Babes in Cheadle, Karma Sutra Girls in Trafford, maybe 50 Shades/Roses in Prestwich? All of their websites look a bit iffy though. Another parlour to avoid in my opinion would be Ladybirds in Northernden, similar issue with bad website and made up ages plus the two women I saw tried to avoid any sex. I think that was another work related week away from home. I'm sensing a pattern.