How To Get Rid of Rats in Your Crawl Space

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Discovering rats in your crawl space can be a homeowner’s worst nightmare. Not only do these unwanted pests cause damage to your home and electrical wiring, but they also pose health risks due to their droppings and potential to spread disease.

In this blog post, we will reveal how to get rid of rats in crawl spaces effectively by addressing the root causes of their infestation and exploring various removal methods. We’ll also provide prevention strategies that will help make your home less inviting for rodents.

Key Takeaways

Start to eliminate rats from a crawl space by setting rat traps around the perimeter of the crawl space. Focus on any place where there are potential entrances or exits such as doors, vents, pipe holes, etc.
Rat poisons are another potential option, but this allows the rats to crawl away and hide before they die. This can result in unwanted and hard to treat smells.
The next step is to block all potential entrances and to remove things that may attract rodents such as pet food or garbage.
Check and rebait traps at least twice a day. It’s important to remove dead rats before they start to smell.
If you are unsuccessful using DIY methods, don’t hesitate to call a pest control professional.

How To Get Rats Out?

To effectively get rid of rats in crawl spaces, it is essential to understand why they are attracted to the area, after which you can place baits using poisons or traps.

Why Rats Prefer Crawl Spaces: Entry And Infestation Mechanisms

Crawl spaces are ideal for rats, as they provide a warm, damp, and protected area that allows these pests to flourish. The combination of humidity control, insulation, and structural elements creates a conducive atmosphere for them to breed quickly.

As expert infiltrators, rats develop unique means to enter crawl spaces using mechanisms such as gnawing through materials like wood and plastic pipes.

Crawl Space with Paved Floor

Effective Methods For Extracting Rats: Baits, Poisons, And Traps

Eliminating rats from crawl spaces can be challenging, but using effective extraction methods will make the job easier and ensure lasting results. One highly recommended technique is to implement snap traps, which are also considered humane and beneficial against mice.

While rat poison might seem like a convenient option, it’s not always the best choice as it may take some time for rats to ingest enough bait before they die. Furthermore, once poisoned, these rodents often scuttle into hard-to-reach areas where their decaying bodies cause lingering foul smells and potential health hazards.

Rat Trap on Concrete Patio

Getting Rid Of The Rat Smell

Addressing the aftermath of a rat infestation is crucial, as persistent rat odors can be both unpleasant and potentially harmful. This section will explore methods for eliminating residual rat smells and restoring your crawl space’s new air quality.

Addressing The Aftermath

Persistent rat odors are primarily due to the buildup of nitrogen-rich urea in their urine and droppings, which turns into ammonia as it dries.

To adequately address the aftermath of a rodent infestation, homeowners must take sanitation and odor elimination measures seriously. Start by removing any remaining debris or contaminated materials from the crawl space, ensuring no traces of rats or their waste are left behind.

Next, disinfect the entire area using a powerful cleaning solution such as bleach or specialized chemicals to neutralize foul odors. 

Preventing More Rats From Entering The Crawl Space

Preventing rats from entering your crawl space is crucial to avoid future infestations. There are several effective methods homeowners can use to prevent these rodents from making their way into the crawl space.

One of the easiest ways is by eliminating food sources, such as pet food and garbage, that attract rats. Even things like onions that are supposedly rat repellents can attract bugs which can in turn attract rats.

Another critical measure is sealing off entry points into the house; this includes repairing damaged vents, cracks in walls or foundations, and gaps around pipes or other openings leading inside.

Crawlspace encapsulation using vapor barriers can also be a reliable way to keep pests out permanently.

Crawl Space with Vapor Barrier

By ensuring proper maintenance practices like those outlined above are implemented consistently, homeowners can effectively prevent further rat infestations in their crawl spaces, minimally impacting their property value over time.

When To Call A Professional

If you have tried to get rid of rats in your crawl space and the infestation persists, it may be time to call a professional. Pest control technicians have the expertise and equipment to eliminate rodents from your property safely.

They can also provide ongoing maintenance plans that keep your crawl space free of pests for a guaranteed extended period.

It is important to note that attempting DIY removal methods for rat infestations can be dangerous. Rat poisons and other improper chemicals could put pets or loved ones at risk while affecting non-target species like birds of prey or domestic animals, which might consume poisoned rodents.

In conclusion, if you’re struggling with rat problems in your crawl spaces despite all attempts at self-removal, don’t hesitate! A team of experienced pest control technicians will come out promptly so they can assess the situation and apply different techniques according to what that situation calls for


Now let’s dive into some frequently asked questions about rat infestations.

Is It Common To Have Rats In Crawl Spaces?

Rats are attracted to crawl spaces due to the darkness and relative safety they provide. Unfortunately, rat infestations in crawl spaces occur more often than expected.

According to pest control experts, rodents such as mice and rats can quickly enter homes through small openings or cracks around utility lines entering the home or gaps in siding.

Rat infestations can be especially concerning for homeowners because these pests can carry diseases that may harm humans and pets alike.

Should I Put Rat Poison In My Crawl Space?

Although rat poison can be an effective tool for getting rid of rats, putting it in your crawl space is not advisable. Rat poison should be part of a more excellent rodent control plan, and only a professional should service any bait stations placed around your property.

Using rat poison incorrectly or carelessly can have dangerous consequences for both humans and pets who may come into contact with it unintentionally. Before any work begins in your crawl space, make sure to call an exterminator to eliminate any present rodents and determine the most effective course of action moving forward.

What Can I Spray Under My House To Get Rid Of Rats?

When it comes to getting rid of rats in your crawl space, spraying certain substances can be an effective solution. One option is ammonia spray, which mimics the scent of predator urine and may deter rats from entering or remaining in the area.

A diluted mixture of one-part ammonia and three parts water can be sprayed around the perimeter of your crawl space or directly onto areas where rats have been seen.

Another option is using a predator scent deterrent, such as coyote urine, to make your crawl space less appealing to rats. This product type can typically be found at hardware or pest control stores.

Final Thoughts/Conclusion

Getting rid of rats in crawl spaces can be daunting, but it is achievable with the right tools and methods. To successfully eliminate these unwelcome visitors from your home, you must address the root cause of their infestation.

Using effective methods such as bait stations, traps, hydro-traps, or rat poison can help to get rid of the rats quickly.

By following proper sanitation practices and investing in professional services like crawl space encapsulation or rodent control by exterminators when necessary, you can effectively keep rats out of your crawl space for good.

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Sean is the founder of Conquer Critters. With more than 17 years of experience in dealing with various pests, he is passionate about spreading his knowledge to help everyone manage their pest problem in the fastest, most effective manor possible.

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