how do i keep stray cats especily tom cats in heat away from my female cats that stay outside?

Are your female cats spayed ?

There are 2 ways:
1. Get a dog which gets along with your cats, but hates tomcats;

2. Keep them in the garage, litter box train them, leave the windows or the door open for a little while, but watch over them so they don't run away.

Those are the solutions which could work, if they don't you can always spray the tom cats with a hose. However, if your cats are spayed maybe (just maybe) the tomcats will leave them alone. Hope that helps.

i guess a very slick fence?

I would bring her inside, if she is not spayed. If you don't you will most defiantly without a doubt end up with kittens. I would spay her too, it's a good thing to do if you continue to keep your cat outside. If not she will continue to breed with male cats and adding to the already over populated cat problem.

Spay them, and don't try to look for someone else to pay for the spaying that's just being cheap.

there really isn't a way. The cat has to be away from the females or fixed.

Lol, good luck with that, try throwing a boot at them. But unless you actually do something about the toms themselves like catching them and sending them off to a shelter or something there really isn't much you can do about it. Even if you kept them in the house the toms would still come around. I personally don't like the shelter idea because to me that just sounds plain cruel, know if they get sent to a shelter a stray will most likely just get put to sleep. My brother works at an animal shelter a really big one and he says all he pretty much does is kill stray cats and dogs all day:(

Just get you girl's spayed, and if they already are well don't know what else to say.

If you keep your cats outside and they are not spayed they WILL get pregnant and have kittens without fail. Don't be surprised if they are already, it doesn't take much. I know I've had a LOT of cats. Also if you keep your cats outside they are very likely to run away, or get hurt, find bad food, or get sick. Stray toms can be rough and cruel and if your cats aren't tough enough they just end up getting bullied if they don't cooperate with the courting male that comes around calling.

If you don't want kittens get them spayed!

If you don't want Tom's Attention spay them and keep them inside! It will minimize the toms' attention, but it won't eliminate it.

*Locking them in the garage with the window open won't work, because the toms will get in, and eliminates the point. Even if there's screen they will tear it open, never underestimate the strength and determination of a cat in heat, or a male who senses a cat in heat.

Or like Yoki69 said try getting a dog who will guard your cats, some dogs will do that if they're territorial enough and get along with your cats. But no promises.

If you live in Nova Scotia, Canada, The Spca Will spayed your cats for about 140 dollars and I suggest you do. I have 2 female cats that where not spayed but never went outside and i still got a bunch of toms outside, the cat population in my neighborhood is really high and people like kittens but they don't care for adult cats very much, try moth balls and pepper on your porch.