A girl had been trying to reach her brother since Sunday morning. She called him a dozen times, sent text messages, and even called on the landline, which his brother hated. She was really worried, and on Tuesday afternoon, she drove to his house in Maylands, Perth.

She knocked on the door, then knocked harder. After so many attempts, she called the police. When the police came and broke down the door, what she found was completely traumatic. Her brother had been a victim of a violent crime and was found deceased. The property was immediately declared a crime scene, and the forensic house cleaning investigators began their work methodically and carefully, without a rush, because what happened inside the house is not just about cleaning; every piece of evidence was important to them.
At this time, with detectives, a forensic scene cleaning company is more than necessary because proper trauma cleanup requires a compassionate medical approach and highly controlled methods for securing crime scenes or accident scenes.
What Forensic Scene Cleaning Actually Is?
A forensic cleaning service is not about general industrial cleaning, such as chemical and paint cleanouts. Forensic house cleaning is a special type of professional procedure that involves the removal of biological contamination from a property after an unattended death, murder, suicidal scene, or traumatic event.
Some people thought that a forensic scene cleaning company uses normal techniques and spray bottles for mopping and wiping. But it is totally different; a forensic team works with protective equipment for disinfecting the property from germs and bacteria, scientific testing tools for identifying the types of biohazardous contaminants absorbed into the carpets or surfaces, medical atmospheric treatment for reducing the stinky smells, and hospital-grade disinfectants for a full property cleanout.
The Call and What Came Next
When the police left the crime scene after the investigation, the real work began because it had been two days, and the house was filled with stinky smells; the walls and the surfaces were filled with bloodstains, and biological contamination spread across the carpets. The property requires a full trauma cleanout of germs and bacteria.
The situation was completely out of control, and the girl could not handle this because the smell was so strong that no one could step inside the property without professional tools and masks. Trauma scene cleaning without training or inspection can cause serious problems, such as spreading bacteria, viruses, and pathogens, which can cause critical human infections.
On Wednesday morning, the girl pulled out her mobile and typed four words on Google: “forensic scene cleaning company,” and at the top, she found Unit444. She contacted and sent some photos of the scene and asked for immediate inspection because she wanted to move into her brother’s house as soon as possible, before his memorial.
Inside Trauma House Cleaning: What the Team Found
The Unit444 team arrived at the point. First, we did the inspection of each infected area. The girl told us what to clean, what needed to be donated, and what to keep aside without taking a look. Then the team suited up and went inside. We organised a plan for a forensic cleaning service and took a look at where to start.
Zone | What the team found |
| Living room | The primary scene where the biological pathogens spread across carpets, bloodstains on walls, and surfaces |
| Bedroom | Second contamination on the interior door surface |
| kitchen | Police forensic powder |
| Bathroom | The basin and bathtub were filled with biological residue |
| All enclosed spaces | Ceilings, fans, and flooring had absorbed the contamination smell |
After the complete assessment, our team leader fixed the forensic scene cleaning price with the deceased’s sister and went back inside the property.
Four Stages That Turned a Crime Scene Into a Safe Property
Stage one: contamination
Nothing moved until the Unit444 team, a forensic scene cleaning company, sealed all the affected zones with plastic sheets. It stops the contamination from spreading into the zones that were not affected yet.
Two: Removal
Before any chemical treatment, Unit 444 removed everything from the property that could not be decontaminated.
- The carpet and underlay from the living room, every bit of it
- The section of wallboard that had absorbed contamination
- Soft furnishings and fabric items from the affected zone
- The hallway carpet
- The bedroom door was taken off its hinges so it could be fully treated
Nothing was sent into the general waste, and no area was left unsecured. Every biological waste forensic cleaning service was applied legally and practically.
Three: Decontamination
| Treatment | What it does | Where it was applied |
| Enzymatic solution | Breakdown fats and proteins at a molecular level and absorb into the carpet and surfaces | Primary scene and secondary zones |
| Mandatory dwell time | Ensure full chemical protection before removal | All infected surfaces |
| Hospital-grade disinfectants | Removes the remaining germs and bacteria deeply | All infected flooring |
| Police forensic cleaning | Left chemical powder during the investigation process | kitchen, bathroom, bedroom, and hallways |
| ATP swab testing | Scientific-level approach to searching for leftover germs and bacteria for safety | All primary and secondary zones |
| Medical odour treatment | Stinky odour of biological contaminants | All closed spaces |
The Unit444 team operates 24 hours to provide crime scene and trauma cleanup services.
Four: Reinspection and Clearance
When every area was completely disinfected from chemicals, germs, and stinky odour, our team leader conducted a full reinspection of the entire property and ensured that every room, every surface, and every wall had been completely treated and assessed. The girl walked inside the property and took a complete glance. On the same next day, Unit444 forensic house cleaning team handed her a clearance document of each step that our team took during forensic scene cleaning
Forensic scene cleaning company outcomes:
- All biological contamination was completely removed
- Air quality was made safe with medical sanitization techniques
- Completed the work within the same day, no delays and no disruption
- No damage to the property
- Everything was completed with the fixed price, no surprises at the end
- Fully insured paperwork
Deceased sister review, Maylands, Perth
I was completely shocked and did not know what to do, and I thought I would not be able to walk in again. When the unit444 team answered and appeared, they turned the impossible thing into a possibility and completely changed the property into a safe state.
Frequently Asked Questions:
When police release a crime scene, who is responsible for cleaning it?
The police do not handle the cleaning process because a traumatic event requires professional handling, and the unit444 team is specialised in handling unattended deaths, traumatic events, and crime scenes.
How much does a forensic scene cleaning cost?
Every job is different, but it depends on the assessment, the difficulty, and the labor of the job. The quote is fixed; it means you will pay the same price at the end as agreed upon before the booking.
Can family members do the cleaning on their own?
No, because every traumatic event contains many aspects, bacteria, germs, and biological pathogens that require professional and medical tools for removal. It can be harmful if you do it yourself without proper protection.
How quickly does unit444 appear at the crime scene cleaning?
Our team operates 24/7 and provides a same-day approach in nearby metro Perth areas. But for far Perth suburbs, it may take a while for an immediate inspection.
Do you actually dispose of biological waste?
Yes. We carefully sort all the biological waste from carpets, flooring, and structural material and reinspect the areas for insurance. The Unit444 team conducts biological waste processes under Australian health rules and regulations.