We have redback webs all around our house!
I have never seen a redback in my life..........until we moved here to the Shire . When living in the built-up inner west of Sydney, DH would see a redback in our yard - occasionally.
However, here we have the webs & spiders around our front entry, brick weep holes, around the AC unit, gas bottles, retaining wall, upstairs balconies..........everywhere .
I'm sick of spraying with conventional canned spider sprays.
How effective would professional treatment be ?