Said It Here

How to stop animals from digging trenches around house foundations

Burrowing rodents dig deep trenches along home foundations, leaving property owners searching for ways to eliminate the pests and prevent further structural damage. While backfilling with soil and mulch is a common response, stopping the activity requires targeting the animals directly or encouraging natural predators like hawks to clear the yard.

Overview
People affected6 accounts across 4 forums
Workarounds found12 items attempted
Community agreement12 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

12 items+ Contribute

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Considering extreme measures like dynamite
    Did this help you?
  2. 2
    Backfilling with soil and mulch
    Did this help you?
  3. 3
    Setting traps
    Did this help you?
  4. 4
    Spraying holes with pepper spray
    Did this help you?
  5. 5
    Treating soil for grubs to eliminate food sources
    Did this help you?
  6. 6
    Using traps, peppermint, and cayenne pepper
    Did this help you?
  7. 7
    Using Ramik rat and mouse bait placed into the burrow holes
    Did this help you?
  8. 8
    Hiring an amateur to crawl under the house
    Did this help you?
  9. 9
    Trying all-natural herbal repellents scattered in vents and under the house
    Did this help you?
  10. 10
    Considering or avoiding poison
    Did this help you?
  11. 11
    Hiring handymen to repeatedly replace the damaged standard soffit material.
    Did this help you?
  12. 12
    Installing 1/8-inch galvanized steel mesh (hardware cloth) as a barrier over or under the regular soffit.
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/lawncare2 people · September 2026

“What infernal critter is g doing this? They are trying to trench all the way around my foundation.”source ↗

“How the kill them? And what to do to keep them from digging.”source ↗

Effective_Grass8355 · r/lawncare · 5 upvotes

“I have an elevated walkway with pavers and for the past few months (all summer) chipmunks have been burrowing underneath and collapsing them.”source ↗

“I’ve tried traps, peppermint, cayenne in the area and nothing has helped.”source ↗

getshwifty2 · r/lawncare · 3 upvotes
r/HomeImprovement1 person · October 2026

“I am tired of having a handyman replace soffit that has been destroyed or compromised by rodents, only to see the replaced soffit destroyed or compromised again less than a year later.”source ↗

“Additionally, I have read of some people's concerns that any rodents currently in the attic will be "trapped" up there once the hardware cloth is installed and die in the attic, leaving a pungent odor.”source ↗

CFHomeowner · r/HomeImprovement · 2 upvotes
r/homeowners2 people · September 2026

“Isit ok the backfill w soil and mulch?”source ↗

InternDangerous9694 · r/homeowners · 1 upvotes

“I had a chipmunk problem for a while but a group of redtail hawks made my roof and backyard their home for a few weeks.”source ↗

ponziacs · r/homeowners · 1 upvotes
r/Pestcontrol1 person · September 2026

“I can hear chewing in my floors. Like a mouse or rat chewing on wood. It's not in one spot or room, its all over the house. So I worry its an infestation.”source ↗

“It sounds like the mice/rats are in the sub flooring where we cant really reach”source ↗

“I'm losing faith in my grandma's ability to hire someone, but I also dont know what to do myself.”source ↗

TeamWaffleStomp · r/Pestcontrol · 1 upvotes

Where this came up

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