The popular TikTok account has amassed more than 4million followers (Image: BNBB)

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If you thought TikTok was all about dance trends and lip-syncing, then you'd be wrong.

An American clean-up company has become a surprise hit on the video-sharing platform, but just a quick warning – their content is not for the faint hearted (or those eating their lunch).

Spaulding Decon offers biohazard and crime clean-up services for those who need their help. They have been known to visit the scenes of homicides, hoarding, and even homes where a body has been found after a long period of time.

The company began uploading to TikTok using the handle @crimescenecleaning in the summer of last year and has amassed more than 4.2 million followers and 32.2 million likes. And while the footage shows scenes that are all in a day's work for the crew, they are pretty gruesome.

One of their most viewed videos is that of a clean-up job that came about after a welfare check on a middle-aged man ended with the discovery of his body. The footage shows an intense clean-up job, with one of the crew members having to remove the skirting boards as decomposition had seeped into the wall.

That said, many of the videos put a light-hearted spin on some pretty terrible situations, often following TikTok trends or reacting to other users' videos.

Many are also commentary and 'hacks' videos, with one explaining how to get blood out of fabrics and carpets (three per cent hydroperoxide in a spray bottle, leave it soak, and hoover it up, don't blot it – if you're interested).

The franchise, Spaulding Decon, has its headquarters in Tampa, Florida, but has 45 businesses across the United States. They mainly specialise in biohazards, water restoration, hoarding, crime scene and drug lab clean-ups.

Although Tik Tok has strict guidelines regarding graphic content, Spaulding Decon’s main aim is to educate others, so they make an exception.

The company had originally planned a reality TV show but that fell through. This then led the team to create their own social media accounts to document their day-to-day work.

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