Carolyn Wilson, 55, from Twickenham, has been dedicating her spare time for almost a year to the NSPCC's Schools Service programme, and is calling for other people in the boroughs of Ealing, Brent, Harrow, Hounslow and Hillingdon to do the same.
The scheme is committed to visiting every primary school in the UK, every two years, to educate children about abuse, what it is, how to protect themselves and how to seek help if needed through services such as ChildLine.
Volunteers receive full training before going into schools and delivering assemblies and interactive workshops.
Ms Wilson, who has completed her training, said: “I love the role and working with the children to help them understand what it means to keep safe is hugely rewarding.
"When I heard the statistics about just how many children are vulnerable to different types of abuse, it made me realise how important it is for us to visit as many schools as possible.
"If we can empower every single child with the knowledge that they can speak out and how to feel more in control of their lives, then I know we’ve ultimately made a difference to a child’s life.
“It appears that not a day goes by without us hearing of yet another case of child abuse in some form. If you feel strongly about this, you should definitely give volunteering a go.
"The training is excellent and the support is phenomenal.”
Schools service volunteers must be 16 or over and ChildLine will provide the training and support required for the role.
Deadline for west London applications is July 15 and covers the boroughs of Ealing, Brent, Barnet, Hounslow, Harrow and Hillingdon.