Odour Removal & Mould Remediation Specialists - Hampshire & Nationwide
Frequently Asked Questions
Yes. BioSweep® treatments are safe, non-toxic, and eco-friendly. While ozone and H₂O₂ are used in a controlled process, they break down naturally, reverting to oxygen and water vapour once treatment is complete, leaving no harmful residues
BioSweep provides reports based on UKAS-accredited laboratory results. Our reports include:
Laboratory-verified data for air and surface samples
Confirmation of odour suppression and mould control
Supporting documentation for insurers, landlords, and restoration companies
BioSweep can treat a wide variety of odours and contaminants, including smoke, tobacco, cooking smells, pet odours, mould, bacteria, viruses, VOCs (volatile organic compounds), and fungal spores.
After treatment, the “Surface Defence®” protection can last for 9 to 12 months, continuously killing microbes, bacteria, and viruses on treated surfaces.
Decontamination (UK/US) - This term is consistent in both regions. It refers to the removal or neutralisation of hazardous substances (e.g., bacteria, viruses, chemicals, smoke compounds) from air, surfaces, and materials.
Remediation (UK/US) - Another term used globally, meaning the process of correcting or reversing damage, such as mould remediation, fire remediation, or water damage remediation.
We deliver specialist odour removal, mould remediation, and decontamination services for homes, commercial properties, vehicles, and marine/aviation applications. We also provide air and surface testing, post-treatment validation, and reporting for insurers, landlords, and restoration professionals.
Mould is ubiquitous and cannot be completely removed. BioSweep® suppresses mould growth and provides safe remediation solutions to restore indoor environments. Post-treatment sampling confirms reduced microbial activity.
Odour removal is the process of eliminating unpleasant smells from indoor environments caused by fire, smoke, water damage, mould, pets, or chemicals. BioSweep uses advanced gas-phase oxidation technology to neutralise odours safely and effectively.
Our processes are generally chemical-free and eco-friendly, producing oxygen and water vapour. Some treatments use ozone or hydrogen peroxide in controlled applications. After treatment, reactive components revert to oxygen, leaving no harmful residues.
Yes. We collect samples and send them to independent UKAS-accredited laboratories. BioSweep® prepares reports using this verified lab data, suitable for insurers, landlords, and restoration partners.
We operate across Hampshire, Dorset, West Sussex, East Sussex, Surrey, London and nationwide throughout the UK.
BioSweep® UK supports insurers, loss adjusters, and restoration companies with professional mould and odour sampling, UKAS-verified reporting, and technical guidance to streamline remediation claims.
BioSweep delivers professional odour removal, mould remediation, and decontamination services for properties affected by fire, smoke, and water damage. We provide detailed reporting and post-treatment validation for insurers, based on UKAS-verified laboratory results.
While we are not typically first-in emergency responders, we provide rapid deployment to support insurers and restoration teams once initial clean-up has occurred.
Awaab’s Law, introduced in October 2025, is UK legislation that requires landlords and housing providers to take swift action when damp and mould are reported in rental properties. The law is designed to ensure tenants live in safe and healthy homes by reducing exposure to mould-related health risks.
BioSweep UK provides professional mould inspection, odour removal, and decontamination services to help landlords, estate agents, and housing providers meet the intent of Awaab’s Law. While there are no regulatory “compliance standards” yet, our services include:
Air and surface sampling with independent UKAS-accredited laboratories.
Suppression of mould spores and odours using safe, eco-friendly processes.
Post-treatment sampling and reporting for verification and record-keeping.
No. Mould is present in all environments. BioSweep’s specialist services suppress mould growth and remove odours while restoring indoor air quality. Our UKAS-accredited post-treatment sampling ensures that conditions are safe for occupants.
Landlords, estate agents, housing associations, insurers, and restoration companies can use our services to document, mitigate, and manage damp and mould issues, demonstrating proactive action under the spirit of Awaab’s Law.
Independent, UKAS-accredited testing provides verified evidence of air quality, surface contamination, and post-treatment results. This supports landlords and insurers in meeting obligations, protecting tenants, and documenting effective remediation.
Odours are caused by volatile organic compounds (VOCs) released by mould, fungi, or bacteria. BioSweep’s treatments neutralise these odours and suppress the source microorganisms.
BioSweep’s process suppresses mould spores, rather than eliminating mould entirely, because mould is present everywhere. Odour removal neutralises unpleasant smells at the source, restoring indoor air quality.
Microbial contamination refers to the presence of microorganisms such as mould, bacteria, or fungi on surfaces, in the air, or in materials, which can affect indoor air quality and hygiene.
Cleaning and reducing microbial, chemical, or odour contaminants in an environment.
BioSweep® UK offers a comprehensive range of sampling techniques:
Sterile Swab Testing: For mould, faecal matter, and combined bacterial sampling.
ATP Swab Tests: Rapid assessment of microbial contamination and cleaning effectiveness.
Air-O-Cell Air Sampling: Captures airborne spores and bioaerosols for laboratory analysis.
Tedlar Bag Air Sampling: Collects volatile organic compounds (VOCs) and odorous contaminants for lab testing.
All laboratory testing is conducted independently by UKAS-accredited labs. BioSweep® performs the sampling and compiles the results into detailed, professional reports.
UKAS (United Kingdom Accreditation Service) provides independent verification that laboratories meet strict quality and technical standards. BioSweep® relies on these accredited labs for accurate results.
Mould is a type of fungus that grows in damp or humid environments. It reproduces via spores, which can become airborne and contribute to odours or health issues if left unchecked.
Measures taken to suppress mould growth and restore safe indoor environments.
Post-treatment verification involves sampling and analysis after odour removal, mould remediation, or decontamination. BioSweep collects air and surface samples, which are analysed by independent UKAS-accredited laboratories. The results form the basis of our reporting to validate effective treatment.
Yes. After remediation or odour removal, we provide post-treatment sampling and UKAS-verified results to confirm safe, effective treatment outcomes.
Cleaning is the process of removing visible dirt, dust, and other soils from surfaces, typically using a cloth, wipe, detergent, soap, or solvent.
While cleaning removes debris, it does not kill or fully eliminate bacteria or viruses. However, it is an essential first step before sanitising, disinfecting, or sterilising, as it improves the effectiveness of these processes.
Disinfecting kills or inactivates bacteria and viruses as specified on the product label. Disinfectants are the only products approved by the EPA (or relevant UK authorities) to kill viruses on hard surfaces.
Disinfecting is a key method to prevent the spread of infections and germs. For new or emerging pathogens, such as COVID-19, only disinfectants with emerging pathogen claims should be used. Approved disinfectants in the UK can be found via the Defra website.
Disinfectants can also be used on food contact surfaces, but they must contain food-safe chemicals. Disinfection is particularly important in hospitals, medical facilities, and high-risk environments.
These processes are complementary:
Clean first to remove dirt and debris.
Sanitise surfaces to lower bacteria to safe levels (optional in general spaces).
Disinfect to kill bacteria and viruses, especially in high-risk or post-contamination environments.
Removal refers to physically taking away mould, odours, or contaminants from a property, surface, or material. It is a direct action aimed at eliminating the immediate problem.
Remediation is a broader process that includes removal but also addresses the underlying causes, prevents reoccurrence, and restores the environment to a safe, healthy condition. It often involves inspection, treatment, and post-treatment validation.
‘Mould’ is the standard UK spelling, while ‘mold’ is used in the US. Both refer to the same type of fungus.
‘Odour’ is the standard UK spelling, while ‘odor’ is used in the US. Both refer to a smell, whether pleasant or unpleasant