An unpleasant smell in your bedroom or mould growing on your window frames could be a sign of condensation

It is uncomfortable and unhealthy to live in a house where mould and moisture have formed, leaving the place smelling musty. Damp problems must be sorted out immediately after encountering them.

Condensation also destroys plaster-work, the interior walls, window frames and timber including skirting boards.

Any structure that experiences chilly air condensing on cold surfaces in the winter will exhibit symptoms of condensation.

For advice call our condensation experts today on 020 7458 4864.


There are many reasons for the mould to appear and infest. During winter, for instance, the air inside the building is usually on the warmer side due to internal heating elements. But when the warm air cools below the dew point and touches chilly surfaces like windows and walls, it leads to the formation of condensation and mould.

Condensation is usually witnessed during winter months and is mostly caused due to:

  • Poor heating
  • Lack of ventilation while showering or cooking
  • Wet clothes hung up to dry
  • Leaking drain or water pipe
  • Roof leak

Maintaining adequate room temperatures and wiping the water droplets at once will minimize mould formation.

Preventing condensation

Preventing condensation involves proper ventilation and heating of your home, to release moist air from the rooms.

Condensation disappears after cold months. Therefore, to avoid condensation issues throughout the winter, it is advised to remain vigilant.

Kitchens and bathrooms are more prone to condensation than other rooms in the house. Because dehumidifiers pull in air, chill it, and then reheat it to recirculate, they can help reduce condensation from accumulating in buildings.

Our experts at London Damp Specialists Ltd will quickly assess the dampness in your home, diagnose the exact source and type of dampness and medicate treatment to safeguard your property and the health of its occupants.

Condensation Control London

Here at London Damp Specialists Ltd we are experts in all areas of condensation and how to avoid it. Get in touch with us today to discuss your requirements and let us visit your property or business to analyse the condensation problem and come up with a suitable remedy. Call our experienced team today on 020 7458 4864.

How You Can Stop Condensation

Condensation can be verified by sealing the room with a dehumidifier to run for a recommended time and measuring air humidity and temperature with
metres and other instruments.

If the humidity goes away, then the problem is condensation. Inadequate air circulation and temperature control can make condensation worse. The symptoms include water droplets on windows and walls with dark mould appearance and an unpleasant odour. Condensation damages paint and plaster with mould patches and decays window frames and skirting boards.

Preventing condensation problems involves proper ventilation to free the room from moist air and improving the heating facility to keep the ambient temperature steady without changing the moisture levels. Zones in the house where condensation will mostly occur are in the kitchen and bathrooms.

The best way to keep condensation low and prevent mould growth is to wipe away the water droplets with a cloth after finding them and allowing a passage of air in places of little air movement.

Eliminating unwanted cold surfaces, and using special insulation on the outside wall and inside cavity walls to improve thermal dynamics may help overcome condensation. Introducing a dehumidifier is acceptable to prevent condensation as it draws in air, removes moisture, and reheats to re-circulate.

Faulty ventilation inside a given space leads to the formation of condensation. Blocking off air vents, windows, and other exits causes condensation. Natural ventilation by unblocking or opening the windows often reduces the condensing effect. Different heating temperatures induce condensation in other rooms, so intermittent heating improves condensation and prevents mould growth.

Cavity walls and solid walls hold tiny water droplets after condensation so insulating with special insulation materials can prevent condensation. Maintaining adequate room temperatures and wiping the water droplets at once will minimise mould formation and condensation. Places with little to no air movement cause condensation, and this can be reduced by fitting dehumidifiers that cool down the air before re-circulating it as warm air.

Condensation disappears after cold months. Hence it is advisable to stay alert during the months of winter to overcome condensation.

What if condensation is not caused by poor ventilation?

Remember: condensation can be caused by a more serious condition such as rising damp or penetrating damp. Book your free damp survey with London Damp Specialists and call us for expert advice.

Still have mould and condensation?

If you've tried all the previous suggestions and your property is still plagued by mould and dampness on your solid outer walls, then our team can offer the perfect remedy.

Because of the outside walls' temperatures, it is very typical for mould and condensation to grow on your cold, solid outer walls. When warm moisture comes in contact with these walls it is highly likely condensation and then mould will appear. The only solution for this problem is to apply thermal plasterboard to these exterior walls.

Condensation treatment can include:

  • Removal of blown plaster
  • Apply waterproof render
  • Fit thermal plaster board
  • Plaster with skim finish


What happens next?

Call London Damp Specialists on 020 7458 4864.

Alternatively, you can book a survey online by completing your details below.

Once you have submitted the form, one of our surveyors will be in touch with you to discuss your problems within 24 hours.

Your free, no obligation damp survey will typically only take between 15 to 30 minutes.

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