If you've found a hole by your foundation, under the shed or beside a patio slab, you may be looking at a rat burrow. Homeowners in Secaucus often spot these in fall, when rats are looking for shelter close to food. Before you grab a shovel or a bag of dirt, it helps to know what you're dealing with and why the obvious fix rarely works. This post walks through how rat burrows form, how to recognize an active one and what stops rats for good. If you already know you have a colony, our rat exterminator service can inspect the property and treat it safely.
Which Rats Dig Burrows?
In New Jersey, the rat that digs is the Norway rat. It's a heavy, brown-gray rat with a blunt nose, small ears and a tail shorter than its body. Norway rats nest underground and travel out at night to feed. The roof rat, which is slimmer and nests up high, doesn't usually burrow. Our guide to Norway rat vs roof rat covers the differences in more detail.
A burrow is more than one hole. Norway rats dig a system of tunnels with nesting chambers and usually several openings, including escape holes that may be hidden under plants or debris.
Where Rat Burrows Show Up
Rats burrow where the soil is easy to dig and there's cover overhead. Common spots include:
- Along foundations, especially next to walls, steps and window wells.
- Under concrete slabs such as patios, walkways and garage aprons, where the slab acts as a roof.
- Under sheds and decks, which keep the ground dry and hidden.
- Near compost, trash and bird feeders, where food is close by.
- In dense plantings, ivy, woodpiles and overgrown fence lines.
How To Tell If A Burrow Is Active
Not every hole in the yard belongs to a rat. Chipmunks, voles and other animals dig too. Signs that point to rats, and to an active burrow, include:
- Smooth, packed entrances. Repeated traffic polishes the edges of the hole. Cobwebs or leaves across the opening suggest it isn't in use.
- Fresh dirt. A fan of loose soil spread outward from the opening means digging is ongoing.
- Runways. Rats follow the same paths, wearing narrow trails through grass or along walls between the burrow and food.
- Droppings and gnaw marks near the entrance, on trash cans or on the bottom of a shed door.
- Grease marks where rats rub against a foundation, step or fence as they pass.
A simple check is to loosely fill an opening with soil or crumpled newspaper and look again the next day. If it's been reopened, the burrow is active.
Why Filling The Hole Isn't Enough
Filling a burrow with dirt or gravel, or flooding it with a hose, feels productive, but rats just dig out or use another exit. The colony stays where it is, and the food and cover that drew it in are still there. Burrows along a foundation can also undermine slabs and steps over time, and rats living that close to the house are likely to look for gaps leading inside.
Rats near the house are also a health concern. They can carry diseases and contaminate food, pet bowls and outdoor play areas with droppings and urine. If you clean up droppings near a burrow, wear gloves, spray the area with disinfectant first and wipe it up instead of sweeping.
Pouring chemicals or fuel into burrows is unsafe and can harm soil, pets and people. Don't do it.
What Actually Stops Burrowing Rats
- Remove food. Use trash cans with tight lids, keep compost in a closed bin, bring pet food inside and clean up spilled birdseed.
- Remove cover. Trim dense plantings back from the foundation, move woodpiles off the ground and clear clutter beside sheds.
- Seal the house. Close gaps around pipes, vents and doors so rats outside can't get in. Our rodent exclusion work covers this.
- Treat the colony. Traps and bait need to be placed in secured stations so they reach rats and not pets, kids or wildlife.
- Close burrows last. Once activity stops, collapse and fill the tunnels so a new colony doesn't move into them.
When To Call A Pro
Call a professional if you see more than one burrow, the holes keep reopening, burrows run under a slab or foundation or you've seen rats in daylight. EcoFusion's NJ DEP-licensed technicians use Integrated Pest Management: they find the burrow system, secure traps or bait in tamper-resistant stations and seal the entry points that matter. Same-day and next-day service is available.
Rat burrows tell you rats are living on your property, not just passing through. Learn the signs, skip the quick fill-in and focus on food, cover and sealing. If burrows keep showing up around your Secaucus home, EcoFusion Pest Control can track down the colony and stop it.