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Hamilton Damp Proofing Specialists 

Certified Surveyors in Damp and Timber in Buildings CSDB  and  CSTDB Qualified



Condensation is basically when the moisture vapour in the air can no longer hold any more moisture and as this moisture touches a cold surface it condenses and turns into water. This water can be seen on cold surfaces such as on windows, windowsills, or cold spots on your walls.

Condensation is one of the most common forms of dampness found in buildings and can lead to all manner of problems from peeling wallpapers through to unhealthy living conditions and mould growth issues.

The reason that problems with condensation are on the increase is because of increased standards of insulation, double glazing and draught-proofing making properties more airtight and resulting in moisture laden air staying within the property.

What Causes Condensation?

Warm air can hold more water vapour than cold air – the warmer the air the more water it can hold and conversely the cooler the air the less it can hold.

Thus, given this fact, it becomes evident that if warm moisture-laden air is cooled there will become a point at which the air is cooled to such a level it can no longer hold the moisture present, this is called the dew point.

It is at this point that the excess moisture starts to change from vapour into a liquid and turns into surface moisture which we can see, this is what we call condensation.

Condensation is very much a seasonal problem, usually occurring from October to April. During the winter, ventilation within a property is typically low (due to windows and doors being closed to keep out the cold air etc).

This allows the build-up of moisture vapour in the house, which, in some cases, is sufficient to cause condensation.

The build-up of moisture vapour is also produced from our day-to-day living activities such as cooking with pan lids off, boiling the kettle, drying clothes on radiators, heaters, tumble driers, pets and taking baths and showers.

Condensation may go unnoticed until mould growth or damage to decorative finishes occurs.

Think of mould growth as a natural warning system telling you that the environment in the property is seriously unhealthy and toxic. At this stage, we recommend getting in touch with our Atmospheric Moisture Expert Specializing in Condensation and Mould to assist you in controlling these issues.

Health Problems Associated with Condensation

Condensation by itself will not cause any harm but problems arise when it is left untreated or the cause unsolved and not rectified. If the cause of the condensation problem is therefore not stopped condensation will start to build up and will eventually create an environment that is an ideal breeding ground for mould growth to initiate.

Mould Is One of the Main Issue's

The main effects and problem arising from condensation is the growth of Mould. There are over 100,000 species of mould worldwide. Less than 100 are commonly reported in UK homes some of which are classed as so-called “Toxic Moulds”.

If Mould Isn't Treated Properly, It Can Effect Your Health

Proven Health effects (almost all from agricultural/ occupational exposure) include: -

.Irritation of eyes, nose and throat


.Exacerbation of asthma



.Immuno-suppressed individuals at risk)

Reported health effects: -

Fever, flu-like symptoms, fatigue, coughing up blood, nose bleeds, dizziness, headaches, diarrhoea, vomiting and liver damage.

Black mould is a known issue that can cause problems to your health especially to those people that are vulnerable such as those that already suffer from respiratory issues or the very young.