We do yearly so the a professional now. Works out the same price and buying all the stuff

I usually do it myself with a spray from Bunnings

try to seal up the house and remove them as you see them. if you are worried about the amount of them esp’ with little ones around, then you could talk to a pro. good luck.

Maybe there are some friendly alternatives for removing spiders?

I have never ever had my house sprayed. I have just relocated the spiders outside. I remove any little webs and we do not have a problem with spiders.