Over the last few weeks I have noticed some silverfish.

Live in the NorthEast - and the temperatures are now turning to spring and occasionally warm.

Have a two story townhouse. One of the bathrooms upstairs is not used at all - I found a few silverfish on the floor in that bathroom. But also killed a few downstairs (alive) on the wall near the front door and front windows.

I don't see any moisture/leaks that could cause them, nor do the bathroom fixtures seem to have any leaks.

- any suggestions of where to look? or what to do?

One suggestion I was given was to flush the toilets (with some clorox cleaner) upstairs a few times a week - even if not used -- as they could be coming in via the water pipes there.