Is my house haunted

No, ouiji board is not to be played with.. It would make matters worse because that opens up a door that will let a lot more then they may have in. Comradevisixvi not sound advice at all.

All though I do agree that the experiances they are having are not negative.

It could turn negative if they open the door to other spirits.

Your ideas on the subject are well meaning I am sure but I have to suggest we throttle back a bit when you begin to label my offerings as not sound advice. You sir suffer from the limited and partially blind perspective shared by all the Jesus Helpers. Your religion teaches you that spirits are bad, demons, fallen angels, powers and princapalities are not to be interacted with. But the very foundation of you self sacrificial soap box is built upon the things you are crying out against.
I invite you to consider with an objective and open mind ( a feat that is almost impossible from within a fire and brimstone eternal damnation paradgym, Loving god indeed. Worship me or burn in hell forever! Hmph) that the very spirituallity that you condem as Satanic or Evil is the very same used by your most honored prophets. Moses, John the baptist, Jesus, Paul. All of them Adepts in esoteric and occult practices. Much like Gravity and natural law, so does spirituallitty share constants across systems. TAnd the Christian propensity to vilify and condema spirituallity or Magick is hypocritical and heretically ignorent.