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Decomposition & Odor Removal

Death odors are serious and require immediate professional evaluation and removal by specially licensed trauma cleaners.

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What are decomposition odors and why should I be concerned?

It's disturbing to smell a foul odor without knowing the origin or what it is. While any foul odor in a home should be taken seriously, a decomposition odor refers to a specific negative odor orginating from a biohazard, such as a decaying animal or human carcass. If you suspect your home might be exposing you to decomposition odors, the first thing you should do is have a professional evaluate and deorderize it.

Decomposition odors can be present without visible dangers when a crew or individual conducted an improper decomposition cleanup or when an animal dies within the walls of a home. That is especially the reason why it's important to hire a professional that can test and search the area for traces of decomposition matter. You don't want to discover an area of your property that has a piece of human decomposition matter overlooked by an improper cleanup.

Decomposition remediation specialists at National Crime Scene Cleanup Association (NCSC) are mentally and physically trained to face these type of situations everyday. Through their assistance you can rest assured that the problem will be solved and handled properly, oftentimes at no cost to you.

NCSC emergency crews are available 24/7/365 with the proper equipment and supplies to restore the property. Call anytime.

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Signs of an Improper Decomposition Cleanup

Lingering decomposition smells is usually the sign of an improper decomposition cleanup. You'll know if this is the case when there are:

Heavy Use of Fragrances

The heavy use of fragrances can be an attempt of covering up toxic lingering home odors. If there are heavy fragrances in addition to odors that make you feel physically ill, you should be treating the situation as an emergency. The smell of rotting eggs, cabbage, garlic, fecal matter or similar requires immediate intervention by a trained biohazard team like NCSC.

Persistent Infestations

If you notice any persisent infestations of bugs (especially blowflies), rats, or mice in addition to intense odors, and have ruled out spoiled food or structural home damage, they may be feeding off traces of human bodily tissues.

Frequent Illness

If you or any person in your home is experiencing allergenic symptoms or getting sick often for no apparent reason, exposure to biohazards in the home may be responsible. A professional biohazard crew will be able to test and determine the situation.

Traces of Human Biohazards

Traces of bodily fluids, tissues, blood, or other matter may be in the home, even if you can't see anything right away. Trust us, you don't want to find any of these, either. Experienced and trained professionals can test, examine, and take care of the issue.

Company Was Unlicensed

There are many companies that claim to offer biohazard cleanings when they aren't licensed or trained to do so. When this occurs, the result is an improper cleanup with lingering smells. Two obvious signs of an unlicensed cleanup is wearing the wrong PPE for the situation and/or using the incorrect cleaning supplies.

Where Can NCSC Service?

There is an obvious difference in the quality of service and work when working with certified NCSC crews. Proper procedure and top of the line equipment is used to treat the situation correctly and efficiently. Rest assured that even if you need an odor removal service in a different area than below, NCSC crews may still be able to help. Call for a direct and discrete consultation.

NCSC's Certifications

To read more about biohazardous waste laws, please see the respective governmental websites below:

NCSC teams are fully licensed and trained by the applicable organizations of which they are servicing. Help is just a phone call away. Call the NCSC hotline 24/7/365 for immediate assistance. 

Frequently Asked Questions


When an undetermined, problematic odor is affecting your home you'll naturally have many questions. The NCSC representatives are here to help you with any concerns or questions you may have, even if your's isn't listed below.

1How are odors removed?

NCSC first traces the origin of the odor. Depending on what is causing the odor, the issue is taken care of. Crews use state of the art, cutting edge HEPPA vacuums and ozone generators to deodorize the vicinity.

2How long does it take for a decomposing body to smell?

Decomposition odors typically start within 24-72 hours, however this can vary depending on the environment the incident occurred in. A colder or dry environment can delay odors for anywhere between 4-10 days. However, that does not mean a situation that has an absence of odors is less dangerous than a decomposition situation with odors present.

The odor is generally created by a chemical reaction between the growth of microorganisms and the breakdown of proteins on the cadaver.

3Does a dead body stop smelling?

No. If anything, the odors worsen over time. This is due to the natural decomposition process via the breakdown of proteins by harmful microorganisms. As the process continues, the more microorganisms, and thus the amount of offgassing multiplies.

And, unfortunately, it is not a smell you want to directly expose yourself too. It gets in the hair and skin, which is why proper PPE is so important. Direct exposure is not ideal--in fact, it can take weeks for a contaminated hair follicle to lose that smell.

4Is your service a one time or multiple treatment?

This is highly dependent on the severity of the situation. For example, an unattended death that has been left for 6 months is going to require much more extensive restoration than a fatal accident in the home that occurred just a day before dispatch. Additionally, the way the incident occurred can greatly affect the work involved.

When you call, representative will be able walk you through this process and guide you on the best solution available to you.

5How are these situations taken care of?

In order to determine the best solution, you'll need to know the issue causing the odors.

Never attempt to deodorize or solve issues decomposition in origin yourself. The risk of illness and disease are high.

If you believe you are being affected by a situation like this, call the emergency hotline at +1-844-255-2461 for the best possible solution.

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