Do I need to "test" installed network cables?

Hi all,

I have recently installed a small network using Cat 5e solid core cable from a 12 port patch panel to RJ45 sockets around the house. I have used a proper punch down 110 tool, and configured to 568a. I have done my level best to keep the twisted pair right up to the termination point and minimum unsheathed, following excellent advice on these forums.

If I plug in my laptop on every connection it tells me that it can connect at full duplex 1000mbps mtu 1500 (although on some it also tells me flow control, whatever that is) .

Can I assume that I have done it all correctly, or would there be any value in getting someone to run a cable tester over it as well?

Many thanks

Peter