Privacy rights in home

I am hoping someone can help me here.

I separated from my wife in September 2022 after 16 years of marriage. We own a home together and have 3 children that live with me in the family home. Currently going through court for financials. She met someone else about a month later and over the course of time spent more and more time overnight away from the house and as of November 2023 has not spent a night in the house.

She still comes back to the house when she feel like 3-5 days per week to see the kids, shower, do her laundry when she does not live here. Any requests to her or her solicitor to give me privacy have been ignored and I am now being accused of harassment.

I understand she has access rights but short of changing the locks what can I do?

I work full time and do everything for the kids 17,14 and 10 while she does not work and I pay for everything for the home and children as I have done for the duration of our relationship.

Hi Cleanandshiny,

I find myself in a 'similar' with many differences.
I'm living in the FMH currently with my oldest son, 24.
My ex moved out over a year ago, along with our 3 other children.
I have been manipulated (emotionally/ psychologically abused) during our near 25 year marriage, along with parental alienation under my nose. During the early stages (before my eldest moved back in - he was living on his own at the time) my wife entered the property (she has rights) against our agreed conditions, along with my second oldest son. I asked her to leave, an arguement started and my 2nd eldest son called the police suggesting I was being "threatening" (read holding to our agreement, then not allowing them in).
They waited outside, I went to church, the policeman arrived, I came back from church at that point spoke (angry and not pleasant) to the policeman. I got the following advice (apparently he had gone through exactly the same):
while she has the keys/ access, I cannot stop her.
I asked what if I change the locks, the reply was:
If she does not have working keys/ access, she has no rights to enter (subject to court orders).
I have a fingerprint lock (stops her copying the key from my children) and my children have their finger prints enabled, even though they do not live here.
I have also sent her a legal notice to remove her possessions 2 weeks ago, and she is still trying it on.