Bats

[FishermanTim]

Build and set up a "bat house" for them somewhere else where they can still perform their bug eating duties and then evict them from your property. This way they will have someplace readily available that they can move to.
Between bats and birds, I think they both do a great job on the sketter population, provided they have someplace closeby to roost.

We encourage most wildlife in our small back yard, and over the years we have enjoyed some moderately bug-free seasons due to the bugs and bats doing their thing.

[tattoobob]

I know there up there due to the side of the wall and the droppings on the steps I will build some bat houses and hang them in the woods behind my house, I also have them behind the shutters out front of the house.

they were screeching under the facer board last night right before dusk when I was out on the deck having a smoke

[FishermanTim]

If you're up to it, you could "relocate" them AFTER you have put up the bat house(s). If you do it during the day, they will ususally climb into the bat house with no problem.
The problem for you will be handling them from the fascia board to the bat house. Leather gloves would be sufficent, but I would be careful regarding any bat parisites (ticks, fleas or mites) that can be transmitted to you in the process.

You could also check with the local humane society for additional help.