How To Seal Off A Closed Outside Rat Hole?

Rats create underground pathways or burrows, which consist of food storage areas and living spaces. To get rid of rats outside, identify possible harborage and nest points and apply vinegar around all holes. Filling holes with steel wool, copper mesh, caulk, and spray foam is an effective method to repel mice.

To block off rat holes in your yard, make the holes as unappealing to rats as possible. Avoid using caulk, plastic, or paper to block rat holes, as rats will easily chew through these barriers. Instead, use wire mesh or chicken wire to block the holes and prevent rats from re-entering the hole. If possible, block the hole with cement, as rats will eventually eat away at steel wool.

Inspect the outside and inside of your home for holes and gaps rats may have. If you seal them in, fill the holes with steel wool, caulk over that with pure silicone, and finish it off with siding or other appropriate material. Specifically, mix washed sand with cement, as it is much courser than play or beach sand and compacts tightly when moistened. Apply natural repellents like cayenne pepper around the holes, seal holes with chicken wire or mesh to prevent re-entry, and employ smoke bombs or smoke bombs.

If the burrow is active, stuff the entrance with steel wool or mesh wire, fill the hole with soil and dirt, and stomp it down or tamp down with a tamper. Use a durable sealant, such as caulk or expanding foam, to fill cracks and gaps in exterior walls, foundation, and around the burrow.

In summary, filling holes with steel wool, copper mesh, caulk, and spray foam is a natural and proven method to repel rodents and termites. By following these steps, you can effectively manage your yard and prevent rodent infestations.


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How To Seal Off A Closed Outside Rat Hole
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Rafaela Priori Gutler

Hi, I’m Rafaela Priori Gutler, a passionate interior designer and DIY enthusiast. I love transforming spaces into beautiful, functional havens through creative decor and practical advice. Whether it’s a small DIY project or a full home makeover, I’m here to share my tips, tricks, and inspiration to help you design the space of your dreams. Let’s make your home as unique as you are!

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6 comments

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  • Your mice aren’t committed enough yet. I’ve had them chew through steel wool, and completely devour multiple blocks of Bromethalin Bait. Half a bucket later and I’ve now been adding steel wool and bromethalin bait to block the entrance. My mice seem to talk to each other too because traps will work for 1 or 2 mice and then they won’t touch the trap regardless of bait. Snap traps are so outdated in my place. The mice look at them and laugh and walk right past the bait. The most consistent trap are the sticky pads, but the older mice have learned to avoid those too.

  • I’m pretty sure that mice have built a civilization in a 30+-year-old (not renovated) apartment building. Handymen found holes that led into our apartment, and they thankfully sealed them with cement. A month later, I hear scratches inside my wall (in my room), and they are looking for a way to get in but are failing. I will buy some steel wool and caulk to seal every small crack in that wall that I will find.

  • I had a problem and I found where they were coming in. I rolled up a ball of metal mesh of an old fly swatter and jammed it in the hole/ In my kitchen I had mice coming in under the back wall so i put loads of wire wool through the holes then chopped up wire wool and mixed it into cement and sealed it laying down self levelling compound.

  • The problem is finding the holes. I found a hole between inside the fire place chute and a small closet, while reorganizing. Only problem for the mouse, the metal safe was right there. So I got a metal cookie sheet from the Dollar Tree and put it between the small safe and the hole. The thing is large, to get in they would to make a huge hole. But they always find some other place. Now I have a female cat that is a mouser. I keep having mini-meltdowns every time she shows me she caught one. Lucky she is not like my previous cat (male) who once brought one inside from the garage and became its friend. Females is the way to go. My previous female used to be a mouser also. He was too friendly. His best friend was a chipmunk, they would sit together in my front steps. .

  • What do you do if the rats are coming in through the floor drain covers in the kitchen and bathroom that are connected to the sewage system? I certainly can’t block the drainage system. I keep putting rat poison in them but I’m not sure how effective this is since there’s water running through these sub-floor pipes on regular basis by design. The rats are coming in from the city sewage network under the streets, into our home’s central sewage hole, and up the pipes leading to the kitchen and bathrooms in the house, pushing the heavy metals drainage lids open and running a mock in the house. Help!

  • Tried everything had so many pest control in spent 100 s of pounds but the mice won’t give up keep returning now there’s this one mouse that’s out smarting my elder son .my sons put down traps ect and more but this mouse won’t have it even bright a cat .its just like that film with Lea Evans mouse trap they never leave

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