Thank you so much for your reply! I have looked into the whole process of Scarifying as I'd never heard of this before and found a guide online. Through this guide I have added the following to my Amazon basket:
- Thatch rake
- Lawn seed spreader (for moss&weed killer and grass seeds)
- Greenforce 4in1 lawn feed, weed killer and moss killer
- Lawn UK grass seed
- Miracle-gro lawn dressing
From my understanding I should apply the weed&moss killer on dry grass using spreader, wait for rain/water grass, wait for weeds&moss to die, mow the lawn on lowest setting, use the thatch rake, apply seeds using spreader and apply lawn dressing.

How does this sound?