Preventing mould in short-let and Airbnb properties

The way to prevent mould in a short-let is to control moisture and keep the property ventilated, even when it is empty between guests. Short-lets are especially mould-prone in winter because they are often shut up, unheated and unaired between bookings, exactly the conditions mould loves. Regular ventilation, prompt attention to bathrooms and high-risk spots, and managing condensation keep mould away, protecting both your reviews and the property itself.

Why short-lets are mould-prone

Between guests a short-let is frequently closed up with the heating off and no one opening windows. Moisture from the last guest's showers and cooking lingers, condensation forms on cold glass and walls, and with no airflow, mould takes hold, particularly over winter. An empty property is not a safe property when it comes to damp.

Ventilation is the priority

• Air the property thoroughly during every changeover clean.
• Leave trickle vents open and use extractor fans in bathrooms and kitchens.
• Consider leaving interior doors open between bookings so air can move.
• In winter, a little background heating prevents cold, damp surfaces.

Manage moisture and condensation

Wipe down condensation on windows and sills during cleans, dry the shower and bathroom properly after the last guest, and do not leave damp towels or bath mats shut in the property. In colder months, low background heating keeps surfaces above the temperature where condensation forms.

Check the high-risk spots between guests

Build mould checks into your changeover routine, focusing on where it appears first:

• Bathroom sealant, grout, ceilings and behind the toilet.
• Window frames, sills and reveals where condensation collects.
• Behind and under furniture against external walls.
• Wardrobes and cupboards on cold walls.

Catching a small patch early is easy; finding it once it has spread is a review-threatening problem. Our changeover checklist is a good base to add these checks to.

Why prevention protects your income

A guest who finds mould will mention it in a review and often request a refund, and cleanliness scores are slow to recover. Beyond reviews, untreated mould damages decor, fittings and the property's value. Prevention is far cheaper than the lost bookings and remediation that follow a mould problem, and it ties directly into maintaining 5-star cleanliness reviews.

Let us help you stay ahead of it

Our Airbnb and short-let cleaning service includes airing the property, drying down wet areas and checking high-risk spots at every changeover, with photo reports so you can see the condition even when you are away. For owners of empty or seasonal lets, we can also carry out periodic checks to keep mould from taking hold.