Time for turf
It’s too late to apply weedkiller but if moss is a problem you can apply a proprietary moss killer and give it a couple of weeks to act before raking it out. Clear leaves on the lawn as they fall – it makes for less work later especially if they get wet. Put the leaves on the compost or let them rot down to leaf mould in bin liners or a composting bag.
October is a good month to lay turf because the ground will be damp but still retaining warmth to promote growth. Lay turves, in ground you prepared in August and September, staggering them like bricks in a wall so you don’t get any gaps. Don’t roll them, good quality turves should butt together well if you have prepared the ground properly.
If you have areas of the lawn that need repairing you can do the same job by cutting out the damaged area using a sharp edging tool and laying new turves in as a patch. If you are repairing large areas it’s worth considering hiring a sod cutter to lift the old turf before laying the new lawn. If you have recently sown a new lawn, this month will be about the last time to mow at a cutting height of 2.5cm (1”) to keep weeds at bay until the first cut next year.