I was looking at buying a quality crimper, like the one at GenuineDealz. However, because I am not "in the business" (despite wanting to be), I couldn't justify shelling out another $200+ on a tool that I would rarely use. (maybe 20 times on my boat)
I therefore paid GenuineDealz the $1.00 per end, which is a BARGAIN, to have them do the labor. Their labor charge includes cutting, stripping, double crimp & adhesive lined heat shrink applied over the connection if you ordered heat shrink. They do an excellent job!
In my case, I only needed to extend a eight foot battery cable two feet. So I would have been throwing away 8 feet of cable to gain two! In addition, getting the old cable out and installing a new one would have been a major PITA. On the other hand, I could have had a new cable made for less than the cost of a crimper! Tried to rent a crimper and couldn't, so I opted for the Conan style crimper for around $30, and ordered two more feet of cable and a splice kit. I had Genuinedealz put a terminal on one end, and I spliced the other. Not the prettiest splice, but it's sound, watertight and starts my diesel.
In addition to Genuinedealz shipping for free, I receive the order in 2 or 3 days, and I'm on the other side of the Country (Of course, the UK would be a different story!).
I've done 4 orders with them and have been very happy with each.