Hi all I cut my elderly woman neighbours lawn and last time she mentioned she wanted me to cut down three small trees/shrubs (around 4 ft tall) that have been yellowed from the roots up (basically slowly dying) by cat's urine she believes. She wants me to take them down then remove the roots.

I don't want to make a complete mess of this, so whats the best option? Saw at the root then dig down? What should I do to the turf after etc?

Emabrrisnlgy, I don't know the species of trees, they're those really common generic evergreen ones that border walls and hedges everywhere in the UK with slightly pungent "leaves".

Many thanks!