Condensation Problems

condensation on window

Condensation Problems

You would be surprised just how many tenants and home-owners suffer from condensation problems.  The age of a property has no bearing upon whether or not a condensation problem is present, it can affect period properties, apartments, new homes and bungalows.

Many of us can wake up to streaming windows, especially in the winter months. Streaming windows  are usually the first tell-tale signs that you have a condensation problem in your property.  Once condensation appears it can be extremely difficult to treat and prevent,  it can also pose a huge health to the occupiers.  If not treated in the early stages, it spreads in the form of damp patches which can develop on walls, and other interior materials, it will produce toxic black mould growth which can be a serious health risk.

Signs Of A Condensation Problem

The top 6 signs of condensation problems – what to spot:

  • Musty damp smells in the property
  • Streaming water vapour on windows and walls
  • Damp patches on walls
  • Peeling wallpaper
  • Appearances of mould on window frames, walls and ceilings
  • Textile interiors feeling cold, damp with forms of mildew
condensation on a window

Once You Know The Signs It's Easy

When the air temperature in your home decreases, most commonly over night when the heating is turned off,  the air cools which increases the level of humidity in the air.  This in turn causes water droplets to form.  The air cannot carry the heavy water droplets so the air travels to the colder areas of the house, e.g. your windows and walls, where the water droplets burst as they hit the cold surface.  You will see the water droplets running down window panes or walls. If condensation is left for more than 6 hours at any given time, the condensation will start to form toxic mould spores.

We have a permanent solution to stop condensation on windows.

What Causes Condensation Problems In Our Homes?

Each day on average within a family of 4, each person will produce 4 pints of water..  That’s a total of 1,460 pints of water per person per year.  How do we produce so much water?  After each bath, shower, and  everyday tasks such as washing and drying clothes, cooking and boiling kettles, moisture is produced  It pollutes the air in our homes. Moisture always had a natural escape method before we invested in energy saving measures in and around  our homes.  By installing loft insulation, wall insulation and double glazing we have effectively created an air-tight barrier around our homes which prevents the flow of natural air.  So rather than having a constant natural air flow which brings in fresh outside air and pushes stale air out into the environment our own moist stale air is retained inside.

The crucial consideration when considering installing a Dampair ventilation system is that condensation can seriously affect the occupants’ health, it can aggravate or trigger health problems such as asthma and wider complaints.

Dampair is dedicated to purifying your household air.  We can help you to create a safe pollution free environment indoors.

Why Is Condensation A Problem?

Condensation often results in unhealthy living conditions as well as black mould growth, damage to fabrics, peeling decorations and unpleasant musty damp smells occurring within the property. Occupants become nose blind to the problem. In the most severe cases, condensation can cause long term permanent damage to plaster and timber.

Condensation Prevention

To prevent condensation in the home you need a continuous source of fresh air.  With careful planning, it is possible to prevent condensation build up in the home. If treated quickly and simply you are saving time and not wasting money on continual treatments for mould and condensation that don’t address the root cause of the problem.

Solving Condensation Problems

None of us want to keep all of our windows open continuously, particularly throughout the winter months. If your property is suffering from a condensation problem, look at our condensation control information page and contact our team of experts who can correctly identify and diagnose your property’s issues.

Prevent Condensation Problems – 6 Tips:

  1. Refrain from drying clothes indoors e.g. do not dry clothes on radiators or airers.
  2. Maintain as best as possible a fairly constant temperature indoors
  3. Ventilate tumble dryers
  4. Keep furniture slightly away from the walls so it does not rest against the cooler surfaces
  5. Ensure any extractor fans are enabled and well maintained. (Bathroom & Kitchen)
  6. Keep windows open as much as possible


Good ventilation in the more moisture prone rooms in the house is essential. i.e. Kitchens, Bathrooms, Lavatories, Laundry rooms etc.  More and more property owners are investing in Whole House Ventilation Units also known as Positive Input Ventilation (PIV).  These systems eliminate condensation problems within days. They also prevent mould from forming.

If your property has condensation problem call Dampair on 0800 193 3600 to book a survey or alternatively use our online contact form

Evidence Of Condensation Problems

Below are the common signs to help identify your property is suffering from a condensation problem.

Peeling paint or plaster

Long term internal walls suffering from a condensation problem will begin to affect the paint, wallpaper and plaster. If you notice damage to your interior walls or wallpaper together with some of the problems below your property is almost certainly suffering from condensation problems.

peeling paint off internal wall

Musty damp smells

Condensation and mould growth often give off a damp musty smell. If you notice a damp smell lookout for signs of condensation.

woman holding nose with damp musty smell

Mould on clothes

Mould growth can appear on clothes and fabrics. Check behind head boards, leather and suede shoes.  Curtains are particularly susceptible to mould caused by a condensation problem.

mould spores on leather jacket

Condensation on windows

Generally, the first sign of condensation is water gathering on the inside of a window. There should be no condensation gathered on a modern double-glazed window. This is the first sign that there is inadequate ventilation in the property.

condensation on single glazed window

Mould problems

Mould is unpleasant, unsightly and a serious health hazard. Mould is a side effect of high condensation levels. If condensation sits for more than 6 hours in one place then toxic mould spores will form. If you notice mould it is time to call the experts.

black mould in corner of a room

Condensation Treatment

If you suspect there is condensation or mould in your home it is important you get it treated. Sometimes identifying and diagnosing the damp problem is the hardest task. We offer FREE advice over the phone. If we cannot correctly identify the problem over the phone we offer a FREE home survey. We are experts when it comes to treating and eradicating damp, condensation and mould problems.

Find out more about our professional FREE home surveys. Call our team on 0800 193 3600 or complete the form below and one of our experts will call you

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