Here's an article about how to get rid of spiders, including a recipe for a natural spray. I hope this helps you.
Hi Dennis, I had read to spray around my walls with salt water to get rid of them and it worked for me.
Hi Dennis: Spiders don't like peppermint oil or vinegar, so use a combination of the two against them. Spray windowsills and entryways with a solution of 1/2 cup white vinegar, 1 1/2 cups water, and ten drops of peppermint essential oil. (Eucalyptus oil purportedly works, too, but I find peppermint a more pleasant scent.) If you don't mind using a chemical, I use Ortho Home Defense in my basement because I can't stand bugs in the house! This product will kill bugs for at least 6 months, even after it dries. But, be sure not to spray the floor where your pets walk, as it will get into their system. Only spray where bugs walk, like the walls or window wells.
Here is a site that may help:
These tips might help: https://www.independent.co.uk/news/uk/ten-ways-to-ward-off-spiders-this-autumn-9743843.html
Try stay away spiders from Earthkind. Earthkind.com
I use a spray bottle with peppermint oil and water.