Close the portal to hell from which they emerge.

what kind of spiders tho.

My Mom used to work for a subsidiary of johnson wax in pest control. They were always testing new methods for things e.g. ways to kill flies in a restaurant without a zapper spraying guts everywhere... etc
The prevailing wisdom with spiders being that since they don't have complete contact with surfaces, typically, that they require a direct hit. So..... think it really depends on what type of spider you're concerned about. If they are jumping spiders leave them alone. Those aren't aggressive. (they move like tanks)

Yes, I bought these Ultrasonic pest control and used them on my patio. Mosquitos are just starting here. Also started having a rat visitor. With a few days zereo bugs, and no rat. So they seem to be working. Also, I know someone that uses them in her house and she said zero bugs, including spiders. Highly recommend.
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Let a gecko loose in your house.

Try neem oil. It's natural, offends almost all bugs, and it works great in the garden. Best of all, if honeybees and bumblebees get sprayed with it, they give you a dirty look, then continue with their buzzing.

Wow! I had a dream with a spider that was roughly 10 inches in diameter. Horrible dream. I hate spiders.

If they freak you out that much you need to desensitize yourself to them. THis might sound silly but there are a bunch of peacock spider videos on You Tube. THey are pretty and funny.Watch them and when you do see the humor move on to others tha might be a bit more anxiety provoking. Look at then until they don't make you anxious. When you move up to that 6 pound bird eating spider you are probably getting close to escorting them outside. I actually helped someone on FB overcome their scream level phobia to them by sending her pics of them

Let's look at a few things to slow down these intruders;

1. Get on your hands and knees (literally) and look under every exterior door. If you can see light, there's a entry point for them. Properly weatherstrip all your exterior doors. Check all windows and other areas that penetrate the interior of your home and seal cracks if possible (don't forget your dryer vent).

2. Remove all food sources inside and outside the home (remember spiders eat other bugs and if you have a food source for other bugs...spiders will thank you for baiting them for the spiders).

3. Poisons are virtually useless on spiders. Why? Because they do not groom themselves as other pests do and thus do not ingest the poison. The only poison I have seen work is a fog bomb. But you then must do a deep cleaning of everything as to limit exposure to yourself.

4. Spiders love a house full of clutter. Remove what you can from floors (including floors in closets).

You will never get rid of one hundred percent of the spiders, but you can greatly reduce the percentages by following the above steps.

Best to you!

Caulking? Seal as many cracks as you can.

If Daddy Long Legs don't bother you let them set up house as they prey on other spiders.

They come inside to eat insects, so keep your home well-screened.

Natural ways to repel spiders from homes:
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I have heard peppermint oil on cotton balls at points of entry but I haven't actually tried it...

Try some essential oils in water sprayed around the house. I think peppermint and perhaps lavender may work.

I buy mint plants and put them around the home. For some reason spiders/ants/ect Don't like the smell and it wards them off from the areas you don't want them in. Hope this helps.

Praying Mantis eats them and other bugs but you have to make sure they have enough to eat or they die

Fear. The essence of everything holy on the planet. Lose the fear because the spiders aren't going anywhere.

Those plug-in electronic devices seem to work. But, I have a very old house and always had spiders greeting me by surprise. I started using a "Catch-And-Release" device that sells on Amazon for only a few bucks. It's a hand-held, clear cylinder vacuum that uses one 9-volt battery. You carefully scoop up the spider (or even flies or other bugs) and then release it again outdoors. I've found that, by doing this consistently, I was able to drastically reduce the number of spiders in my house. Now I am rarely surprised by them.

ALSO: Spiders need water, and you will often find them in the shower with you, or by the sinks...wherever they see a water supply. They get very thirsty, especially in the spring after hibernating for a few months. When I do release them, I make sure they have a few drops of water available to them. There is never a need to kill them, and I hope more people start using alternatives.

You live in the United States which is host to some poisonous spiders, so I might feel the same.

This article might help:

www.independent.co.uk/news/uk/ten-ways-to-ward-off-spiders-this-autumn-9743843.html

Conkers in every room keeps them away. Fresh ones each year.

They need a host for survival. If its the big ones that bother you all you need to do is get a small container and entrap them. Place a small cardboard underneath it and entrap it and take it outside and let it go. Start with little bugs to overcome the fear of entrapment. Once you feel certified its a piece of cake.

Cedar oil, peppermint oil. Spiders haaaaate those two.

maybe you should do something about your phobia?

Cats eat spiders

Perhaps you need some professional help to get over your phobia.