Professional Decontamination Process: Stages, Steps, and What to Expect

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The Professional Decontamination Process used by Condensation Cured focuses on whole-space dry fogging for mould control, typically after visible mould has been removed and the source of moisture has been fixed. This guide explains each stage in plain English so you know how to prepare, what happens during treatment, and when rooms are ready to use again. All information here reflects Condensation Cured’s service scope and wording, including compliance with BSEN1272:2020 and the availability of one-off or scheduled visits.

Key takeaways

  • The Professional Decontamination Process applies dry fogging after cleaning and visible mould remediation.

  • Ultra-fine mist reaches hard-to-access areas and treats airborne spores.

  • Electronics and furnishings can remain in place and are ready to use after treatment.

  • One-off visits or scheduled services are available daily, weekly, monthly, quarterly, biannual or annual.

  • Treatments are delivered in line with BSEN1272:2020.

  • For long-term moisture control, Positive Input Ventilation (PIV) can be installed after treatment to help prevent condensation and black mould from returning. See PIV installation services.

What is mould?

Mould is a fungus that thrives in damp, poorly ventilated conditions. It spreads by microscopic spores that move through the air and settle on cool or moist surfaces. Indoors, it most often shows as dark spotting, musty odours and surface damage in bathrooms, kitchens, behind furniture, around window reveals and in colder corners of rooms. Because spores are airborne and can lodge in nooks and gaps, a whole-space approach is often needed after visible cleaning to reduce the risk of regrowth.

The Professional Decontamination Process for mould: dry fogging

Dry fogging disperses an ultra-fine antimicrobial mist throughout the space. The droplets are so small they behave like a vapour, helping the treatment reach behind furniture, into tricky gaps and across large areas quickly and evenly. It complements visible mould removal by addressing the harder-to-reach spores in the air and on surfaces.

Typical stages

  1. Inspection and preparation
    The team confirms which rooms are in scope, checks that moisture issues have been addressed, and makes sure access routes are clear.

  2. Cleaning and removal of visible mould
    Any remaining visible mould and contaminated materials are removed from surfaces before fogging.

  3. Whole-space dry fogging
    The ultra-fine mist is applied to the full space to treat airborne spores and contact exposed surfaces, including areas that are impractical to reach by hand.

  4. Ventilation and re-entry guidance
    The property is aired. You receive clear instructions on when rooms are safe to use and how to keep conditions stable afterwards.

When dry fogging is used

Dry fogging is not the first step. It follows:

  • Visible mould removal from affected surfaces.

  • Moisture control, for example fixing leaks, improving ventilation and managing indoor humidity.

With those in hand, dry fogging is used to deal with lingering spores that are not easily reached by hand cleaning. Ongoing moisture control remains essential after treatment.

Why choose Condensation Cured

Comprehensive coverage with minimal disruption
Contents can usually stay where they are, including electronics and furnishings, and are ready to use after treatment. Rooms return to normal use following re-entry guidance.

Approach focused on indoor environments
Products and methods are selected to support indoor air quality and responsible practice while delivering effective mould decontamination.

Health and safety
Processes are designed to reduce cross-contamination between rooms, support safe re-entry and provide clear aftercare advice so you know how to keep spaces healthy.

Helping to prevent mould returning
Treating spores in the air and on difficult surfaces supports longer-term results when combined with good ventilation and moisture control.

Flexible service plans
Book a one-off decontamination or schedule daily, weekly, monthly, quarterly, biannual or annual visits to suit your setting and level of risk.

Standards-aligned delivery
Treatments are carried out in line with BSEN1272:2020.

Sectors we support

Condensation Cured provides mould decontamination for homes and landlords, offices and commercial buildings, schools and education, healthcare and care settings, and hospitality. Each environment receives a plan that fits its use, occupancy and cleaning needs so disruption is kept to a minimum.

How to prepare before the visit

  • Identify the rooms to be treated and keep access routes clear.

  • Move fragile items if requested during pre-visit checks.

  • Open or unblock internal airflow paths if advised.

  • Ensure leaks have been repaired and basic cleaning is completed where visible mould was present.
    If anything needs special handling, the team will confirm this during the survey or pre-visit call.

What to expect on the day

  • Arrival and briefing
    The team prepares the area and confirms which rooms are being treated.

  • Final checks
    Any prior cleaning or removal work is confirmed before fogging begins.

  • Dry fogging
    The whole-space treatment is applied to address surfaces and airborne spores.

  • Ventilation and re-entry
    The property is aired, and you receive clear guidance on when rooms can be used again.

  • Aftercare advice
    Simple steps for ventilation and humidity control are explained so the benefits are maintained.

Aftercare and keeping conditions stable

  • Use local extraction in bathrooms and kitchens. Consider high performance extractor fans where rooms are heavily used.

  • Keep background ventilation routes open so stale air can leave.

  • Manage indoor humidity and temperature to avoid persistent condensation.

  • Watch known cold spots and wipe surfaces dry if you notice recurrent moisture.

Where Positive Input Ventilation fits in

For long-term prevention, Condensation Cured can install Positive Input Ventilation (PIV) after decontamination. A central unit, usually in the loft or hallway, introduces filtered fresh air to dilute humid, stale air and help prevent condensation and black mould from returning. Systems are sized to the property and installed neatly with low running needs. Learn more on PIV installation services or call 0800 433 2063. PIV can be paired with high performance extractor fans for best results in wet rooms.

Scope and what we do not cover

This service is focused on mould decontamination via dry fogging in indoor environments after visible mould remediation and moisture fixes. It is not a chemical spill response, instrument sterilisation service or a hazardous laboratory decontamination. If you are unsure whether your situation fits this scope, ask during your survey.

Compliance and documentation

All treatments are delivered in line with BSEN1272:2020. You will receive clear guidance on re-entry and aftercare, and scheduled service plans can be arranged if your setting benefits from periodic treatment.

Booking and scheduling options

You can request a one-off visit or set up a schedule that matches how your building is used. Options include daily, weekly, monthly, quarterly, biannual or annual attendance. To request a survey and a clear, tailored proposal, visit Decontamination Services or call 0800 433 2063.

Frequently asked questions

What is a decontamination service with Condensation Cured?
A professional mould decontamination service that uses whole-space dry fogging after visible mould has been removed and moisture problems have been addressed. The aim is to treat surfaces and airborne spores so rooms can return to normal use with minimal disruption.

Do I need to empty rooms before treatment?
In most cases you do not. Electronics and furnishings can remain in place, and contents are ready to use after treatment. The team will advise if any sensitive items need covering or moving during pre-visit checks.

How long until I can use the space again?
After dry fogging the property is aired. You will receive clear re-entry guidance for the treated areas so you know exactly when rooms are safe to use.

Will dry fogging stop mould coming back?
Dry fogging helps by treating spores on surfaces and in the air. Long-term results depend on controlling moisture through ventilation, fixing leaks and managing indoor humidity. Many homes benefit from PIV to stabilise conditions after treatment. See PIV installation services.

Is the process compliant with recognised standards?
Yes. Treatments are delivered in line with BSEN1272:2020.

Can I schedule regular visits?
Yes. You can book one-off work or scheduled services daily, weekly, monthly, quarterly, biannual or annual, depending on your setting and risk level.

Do you also help with ventilation improvements?
Yes. Condensation Cured can specify PIV and pair it with high performance extractor fans where needed to improve day-to-day moisture control.

Where can I get a quote?
Visit Decontamination Services or call 0800 433 2063 to request a survey and a clear, tailored proposal.

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How to Control Mould: Prevention Tips Before It Takes Over Your Home