What is Professional Mould Removal?

Updated on
August 7, 2026

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One of our technicians applying EverPURE, our durable antimicrobial layer, to all surfaces to help resist mould coming back.

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What is professional mould removal?

Professional mould removal is the process of identifying, treating and removing mould from a building in a controlled, effective manner. It involves a combination of physical cleaning and chemical treatment to bring the mould down to outdoor-air levels, then prove it. That's where professional mould removal steps in.

How does Pure Maintenance carry out professional mould removal?

When Pure Maintenance UK receives a call from a customer, they are first taken through a process of registration and information gathering with one of their customer consultants. Once all of this is done, a time and date are agreed upon for the technician to visit the property.

The first part of the Pure Maintenance treatment is the application of InstaPURE, our patented dry-fog sterilant. Its oxidising actives - peracetic acid and hydrogen peroxide - are authorised at manufacturer level. InstaPURE works by denaturing mould and other microorganisms; stripping them of their functional properties and rendering them inert. InstaPURE is delivered via our patented dry fog technology. The dry fogger condenses InstaPURE to such a small particle size that it is unable to condense on surfaces, meaning the fog can remain suspended in the air. This is significant as most of a mould problem is invisible and can be airborne, on surfaces, in the folds of soft furnishings and clothing or hidden behind walls and under floors. Once the exposed mould contamination has been treated, we begin the next step in mould removal.

The fog is delivered via positive air pressure, where it stays suspended, circulates through the sealed room, and settles onto every surface the air touches. It oxidises and destroys the living mould it reaches — yes, the black mould people dread — bringing the mould down to outdoor-air levels, lab-confirmed. The treatment reaches mould settled on surfaces, drifting in the air, and in the folds and recesses of soft furnishings a cloth can't get to. Once treatment is complete, your technician will physically wipe away the inert mould and any other visible affected areas.

The second part of the Pure Maintenance treatment is the application of our antimicrobial coating, EverPURE. EverPURE is applied to all surfaces in the home. It forms a durable antimicrobial layer that shrugs off normal cleaning and helps resist regrowth. The coating is made up of positively charged nitrogen molecules with carbon atoms stacked on top. Microscopically, it looks like a bed of nails as the carbon atoms create a spike. Any new pathogens introduced to the property following our treatment are electrostatically attracted to the positive charge and the carbon spike pierces the outer membrane, denaturing the microbe. When mould remediation is carried out properly, it's an effective way to address a mould problem and help resist regrowth on treated surfaces.

Your technician will then take a post-treatment air sample in the treated area, analysed by an independent accredited laboratory, confirming that mould levels are at or below outdoor levels. InstaPURE and EverPURE are applied under a full COSHH assessment, with actives authorised at manufacturer level.

What warranty does Pure Maintenance offer?

After the treatment, you can re-enter your home on the same day, following guidance from your technician. You will be left with a report detailing the mould levels in your home before and after treatment, as well as a 12-month re-treatment warranty. If visible mould comes back - where the agreed ventilation plan has been followed and any flagged source repaired - we come back and re-treat free. Our technician will also advise on any changes you can make to your home or lifestyle to reduce the risk of mould returning.