Yes, you should fill in a rat hole, but only after ensuring all rats are gone, or you risk them chewing their way into your home or leaving a terrible smell as they die inside walls. The best method is to first eliminate the rats (trapping/baiting) and then seal the holes with chew-proof materials like steel wool, hardware cloth, cement, or metal flashing, often combined with expanding foam.
Close and Fill
Inactive burrows: Fill the hole with dirt, then stomp or tamp it down with a shovel to compact the soil. Check back in a few days to see if rats have re-excavated the burrow, which would indicate it is still active. Active burrows: Stuff the entrances with steel wool to prevent the rats from re-entering.
Block the Holes With Mesh or Chicken Wire
Try to avoid using caulk or plastic or paper to block rat holes; the rats will easily chew through these types of barriers. You can use wire mesh or even chicken wire to block the holes and this will prevent the rats from re-entering the hole.
Rats are known for being fiercely territorial animals. When their nest is disturbed, they feel threatened and may abandon it altogether. This can result in them leaving behind their offspring, helpless and in dire need of their mother's care.
The Brown rat has 5 to 15 rodents per nest. There have been as many as 100 in a single nest in some cases. Indoor nests are usually restricted to between 5 and 10 rats; however, you may find a colony with multiple nests made up of mature and young rats. Each female rat can produce up to 40 babies per year.
Position the hosepipe or watering can at the entrance, then turn on the water to let it run into the burrow. The water's force should be sufficient to displace the rats from their nest. After the rats have been flushed out, you'll need to seal the hole to prevent their return.
It is important to seal the holes even after the rats are gone, so other animals do not attempt to utilize the burrow. When there are no animals in the nest, fill it with concrete or sand. If possible, locate the main entry hole and all of the exit holes and pack them full.
Look for signs of rat or mouse infestation: Rodent droppings around food packages, in drawers or cupboards, and under the sink. Nesting material such as shredded paper, fabric, or dried plant matter. Signs of chewing on food packaging.
This is because rats and mice are nocturnal animals and tend to come out around 12am – 3am looking for food. If you do see rats or mice in the daytime then you have a much larger problem.
Rats are capable of remembering places where they found food or shelter, and scent trails help guide them back. That's why rodent problems often repeat when entry points, food sources, or odors remain unchanged.
Amish communities get rid of mice using a mix of traditional, low-tech, and natural methods, focusing heavily on prevention (sealing entry points, removing food sources) and humane trapping, often with handmade cage traps, while also using strong scents like peppermint oil or cayenne pepper as repellents, sometimes alongside cats for natural pest control. They avoid modern poisons to maintain their lifestyle and focus on practical, sustainable solutions.
It's possible to repel rats using essential oils such as peppermint oil and other smells that they naturally don't like. Using peppermint oil is one of the easiest ways to keep rats away from your home as long as you aren't giving them an easy food source.
Building a rat proof deck in your garden
The mesh can then be fixed into place for the whole of the perimeter. It is recommended to cover the underneath of your deck with a weed membrane which should be covered by 20mm minimum gravel. It's the gravel they don't like.
Dropping a bait block or a sachet down a burrow will commonly lead to it reappearing – where you don't want it! Pelleted bait such as Bell Laboratories' Ditrac pellets is ideal for placing in burrows, as it appears to a rat to be similar to seeds or other small foodstuff that might blow into the hole.
If there are garbage cans and dumpsters around, they will use those too, as a means of cover from predators. Rats also crawl up trees during the day to look for food sources. In a city, rats tend to hide in sewers and other public places during the day where they can avoid predators.
Critter Control professionals use industry-standard traps, exclusion techniques, and damage repair to safely and effectively remove rats from your home. We identify entry points, seal access, and implement deterrents to prevent future infestations. We find nests, entry points, and signs of activity.
A great way to test if rats are still making their way through your home is to spread some flour or talcum powder overnight on surfaces and floors you suspect they visit. If you do still have rats, they will leave a trail of footprints which can also help you to determine where they're hiding.
With a gestation period of about three weeks, each female can produce five or more litters yearly. That means a handful of rats can multiply into dozens in a shockingly short time. With the rapid rat life cycle frequently producing baby rats, it's easy to see why infestations seem explosive.
Gnaw Marks and Rub Marks
Rats will also rub their bodies against surfaces, leaving behind the dirt and grease that has built up on their bodies. Therefore, if there are rats underneath your decking, there is a good chance you will see some gnaw and rub marks on the wooden posts and planks.
Seal any holes you find to stop rodents from entering. Fill small holes with steel wool. Put caulk around the steel wool to keep it in place or use spray foam. Use lath screen or metal, cement, hardware cloth, or metal sheeting to fix larger holes.
Rats and mice are nocturnal with most activity taking place between approximately one half hour after sunset to about one half hour before sunrise.
“When rats eat baking soda, it reacts with stomach acid and produces gas they cannot release. This can cause harm, but it's unreliable for eliminating infestations.” Homeowners searching for quick fixes against rats often stumble across the idea of using baking soda as a DIY solution.
An often perpetuated 'old wives' tale' is that anti-coagulant poisons make the rats and mice thirsty and they go outside in search of water and die there. There is a little truth in this, there is a slightly increased likelihood of the rodents dying outside, but in most cases, they will go to their nest and die there.