Buildings have energies which are quite particular to them, be it a church, the Royal Opera House, or Wembly Stadium. Some houses feel neutral, some peaceful, some happy, some sad.
Moving into your new house is a red letter day, and, hopefully, after a time the house feels yours. Sometimes, however, it doesn't, or part of it feels not quite right, or one family member is uncomfortable in a certian room. Often this is because of something that has happened historically in that space. In that case a house clearing or blessing can help clear and change the energy, restore balance, and promote a sense of well-being.
Another sort of blessing might be a Welcoming Ceremony to fill the new house with love, light and laughter.