Its a fensui thing. Here is an Australian site. There are UK Ones
www.fengshui-consultations.com.au/advice/house_cleansing.php
Ceremonies can help people feel better and release themselves from undesired emotions. Here is what the site says:
STEPS TO CLEANSING AWAY THE OLD, STALE AND NEGATIVE ENERGY
You can request it done professionally by me the first time, when I will show you how to do complete house or business cleansing using Feng Shui. You can do this yourself, which I’m going to fully explain here.
This is the simple technique of space and energy clearing. You will need a smudge stick, sandalwood incense, an affirmation, and a packet of rock salt.
The affirmation may go something like: “I enlighten this house with positive enforcement of positive thought of love and prosperity, as I banish all negative energy from this home.”
Friday is the best day of the week to cleanse.
A CLEANSING ROUTINE FOR YOU TO FOLLOW
Begin by removing items left behind by the previous tenants that you do not wish to keep, put them out for garbage collection or give to a charity.
Dust and vacuum to give a nice clean feeling.
Open all the windows and doors.
Put on your favourite music and let the cleansing begin.
You’ll need to focus your mind on what your aim is and confirm your intentions
You need to recite a affirmation in each room as you are smudging.
You will need to smudge yourself first so you don’t leave or absorb negative energies when you leave.
Start burning the sandalwood as the smoke begins to rise from the incense, starting at the top of your head, letting the smoke swirl around you. Move the incense around your body letting yourself be surrounded in the smoke. When you get down to the bottom of your legs, lift each foot and allow the smoke to swirl under the sole of each foot. Let the smoke absorb around every part of your body.
Once you have smudged yourself, move to the front of the house and lets begin.
Allow the smoke to rise and fill every corner, on every wall, over every doorway and window and in every room of the house. As you are doing this, recite your affirmation.
Be sure and move the sage over, around and under furniture, as these things can hold energy as well.
You should work your way clockwise motion through each room until you end up back at the front door.
smudging your entire body one more time.
The final step is to place a pinch of rock salt each corner of each room and this will absorb any negative energy and you need to replace the salt once a month.
Some tips for keeping the home Free of Stagnant/Negative energies.
Place crystals throughout the house.
Place a rock salt in every corner of every room.
Mist the house or workplace with Holy Water.
Burn candles.
Burn incense and smudge with sage.
Burn essential oils or cones of incense in a simmering pot.
Add fresh flowers in vases throughout your house.
Say affirmations or prayers.
Move furniture around every few months.
De-clutter the house or workplace once every year.