Something Died Under the House?

A strong, lingering odor coming from under the house usually means a rodent or other animal died in the crawl space. The smell means there is a rodent access point — and often an active infestation — that needs to be found and sealed, not just masked.

What’s most likely going on

Rats and mice that get into a crawl space nest, breed, and eventually die there. The odor is the immediate problem, but the real issue is the opening that let them in and the contamination they leave behind.

What it means for your home

Beyond the smell, rodents in the crawl space contaminate insulation with droppings and urine, gnaw wiring and pipes, and draw in more pests. Removing the carcass without sealing the access just resets the clock.

What to do next

We locate and remove the source, seal the entry points, and can restore contaminated insulation so the crawl space is clean and protected. You can read more in our Pest Library entry on Norway rats, or head straight to our Rodent Control service.

Frequently asked questions

Can you just get rid of the smell?

We address the source and the odor, but the lasting fix is sealing the entry and cleaning the contamination — otherwise it recurs.

How did an animal get under my house?

Usually a foundation gap, a failing crawl-space door, a damaged vent, or a utility penetration. Exclusion sealing closes those for good.

Not sure what you’re dealing with? Call (360) 206-3293 for a free estimate over the phone, or browse the full Pest Library.

 
 
 
 
 
 
 
  
 
 
 
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 Chris Irish 
 
 
 
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Matthew is a rockstar! He came out on a Friday night after a full day to make sure we were taken care of! Highly recommend!
  
 
  
 
 
 
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 Kristi Lovelady 
 
 
 
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Prompt, efficient and on-time service. Invoices provide written and visual information of service rendered. Mathew is very professional and knowledgeable.  Would recommend Salty Dog services.
  
 
  
 
 
 
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 Michele C. 
 
 
 
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We really like Salty Dog!  Matthew is very responsive and always on time.  His reports are thorough, he is on time and works with our needs!  Thank you Matthew!
  
 
  
 
 
 
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 Brenda Praggastis 
 
 
 
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Matthew is conscientious and careful. He has worked closely with us to address all of our concerns. He has tailored his efforts to the unique demands of our house as he performed an exclusion. The rodent activity has disappeared inside the house and has been vastly reduced outside. We are very happy with his work.
  
 
  
 
 
 
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 Sharon Heiber 
 
 
 
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Matthew solved our mouse problem! He quickly identified their entrance point and blocked it. That was last year. We haven't had a problem since. Thank you, Matthew!
  
 
  
 
 
 
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 Sandi Peterson 
 
 
 
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We had not done pest control for quite some time, (our bad) and one day I needed service right away.   Matthew came ASAP and got us started on the right track.  He did work above and beyond what I expected for a more than fair price and shows up for scheduled maintenance as promised.   He does a great job and I recommend him highly.
  
 
  
 
 
 
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 Rodger Schnee 
 
 
 
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Matt at Salty Dog is both personal and professional, and provides services that are high quality, and very reasonably priced. He is clearly a service provider first and last. I've had previous experiences(with pest services and other) with national companies, when I felt I was sent a representative that was sales first, service provider 2nd. Matt is also well networked with contractors in our community, and gave me a couple great referrals for other work I needed done. The bottom line is that I highly recommend Salty Dog and Matt for any rodent/pest related issues.
  
 
  
 
 
 
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 Nicholas Orozco 
 
 
 
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Extremely helpful and quick service who took his time and treated the issues that I had on the spot. I absolutely felt like the work was quality and he did not rush until I was satisfied with what was done. Thank you very much for the help!
  
 
  
 
 
 
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 britt buchan 
 
 
 
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We’ve had an excellent experience with Salty Dog Pest Control. Matt’s attention to detail is outstanding, and what really sets him apart is his passion for treating the root of the problem—not just applying a quick fix. He took the time to explain what was going on, what he was doing, and why, which gave us a lot of confidence in the process.

His communication is clear, timely, and thoughtful from start to finish. It’s obvious he truly cares about his work and his clients. Highly recommend Salty Dog Pest Control if you’re looking for someone knowledgeable, thorough, and genuinely invested in doing the job right.