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Damp Proofing

Damp is a huge problem for UK homeowners.  It appears on interior walls, inside cupboards, the ceilings, and chimneys, causing the appearance of damp patches, which, if left untreated can create musty smells and perhaps the most serious, mould spores leading to long term property damage.

The biggest problem home owners face is identifying which type of damp your property is suffering from.

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What Causes Damp?

The UK climate is a huge contributing factor to our damp homes.  The UK produces vast amounts water through it’s volume of rainfall alone, together with the humid air that is also created.

One huge factor is human consumption.  The average person can use over 1,200 pints of water per year.  We produce and use water in our homes for all of our everyday chores, washing, ironing, boiling the kettle etc.

Damp can also occur where there are structural issues or faults with the interior or when the property does not have sufficient ventilation.


3 Types Of Damp

There are 3 different types of damp that can occur in properties:

  1. Condensation Damp
  2. Rising Damp
  3. Penetrating Damp

1. Condensation Damp

Dampair are experts at permanently eradicating condensation damp from your home.  The cost effective easy installation of one of our ventilation units will provide permanent results within 24 hours of installation.

Condensation damp is the most common form of damp in homes across the UK.  Poor ventilation is the main cause of condensation damp.

The Top-6 tell tale Signs of Condensation Damp:

  • Streaming windows
  • Streaming walls
  • Damp surfaces
  • Peeling wallpaper and paint
  • Discolouring of glass
  • Black mould
  • Mouldy spores on clothes (especially leather and suede items)


Condensation Damp occurs in properties where there is no or insufficient ventilation.  This means that the moisture the property produces by its occupants and the rainy climate, cannot escape. This results in the moist air droplets making their way to the cold spots of walls and windows, where the water droplets burst as they hit the cold area and stream down the windows, creating condensation. If left for more than 6 hours the damp area will start to form mould.

Prevention Of Condensation Damp

To help negate condensation damp you need to ensure your home is properly ventilated.

With the rapid rise in the installation of energy saving measures into our home, we are cutting off the natural air flow. It is this air flow which enables the damp household air to escape.  Many homes just cannot dispose of our humid air even with the support of fans.  This is where Dampair can help with installing positive pressure condensation and mould control units. We offer a FREE NON-INTRUSIVE SURVEY, provide you with a quote within 24 hours, and provide a professional unobtrusive installation where no redecoration to property is required.

Dampair guarantee you a life-time supply of fresh filtered pollution free air. We supply and install bathroom and kitchen extraction fans.  If your home is suffering from condensation and mould throughout we can install whole house ventilation units.

We can totally eradicate condensation and mould within days of installation. Our solutions come with a minimum 5 year guarantee.

2. Rising Damp

Rising damp is caused by moisture coming up from the soil, into the walls, from ground level.  Flooding for example or an old failed damp proof course

The signs are white tide marks on walls from the floor up to possibly a metre, crumbling plasterboard and deteriorating skirting boards.

Rising damp is not easy to prevent.  It is more prevalent in older properties that pre-date the installation of damp proof coursing.  Rising damp can still occur in newer properties where damp proof coursing has been incorrectly installed or has worn and deteriorated. Rising damp can occur where the exterior land level has risen above the interior floor level in your home.

80% of the time rising damp is miss-diagnosed. It is normally condensation gathering in cold spots that is the problem. Rising damp can be costly to fix. If you think your property is suffering from rising damp, call our team today on 0800 193 3600 to discuss your options

3. Penetrating Damp

Penetrating damp is caused by water leaking through walls or ceilings. This type of damp may expand across your walls or ceiling, but this will be horizontal movement rather than by travelling up walls (as is the case with rising damp).
Penetrating damp is usually caused by structural problems in a building, such as faulty guttering or roofing issues (missing tiles), or cracks in the walls, which mean walls or roofs are regularly soaked with water. It can also be caused by internal leaks, such as pipes under the sink or bath.
Penetrating damp often shows up through damp patches but can sometimes be easily miss-diagnosed. You’re more likely to get penetrating damp if you live in an older building with solid walls. If you are unsure which type of damp your property is suffering from then call our team of experts on 0800 193 3600 or complete are online form and request a call back.

Penetrating damp is generally caused by problems with the structure of the property resulting in water entering the home through walls, floors or ceilings, from for instance a burst pipe or faulty guttering.

The signs to look out for are damage to plastering, water marks and rotting timber.  It normally occurs on the interior of the area caused by what is happening on the exterior of the property. Learn more about penetrating damp

What Type Of Treatment?


Condensation Damp – A Qualified Dampair Specialist conducts your FREE SURVEY – Condensation Damp diagnosed.  Dampair advise on the installation of a compact ventilation unit that breathes new air into your whole home

Penetrative Damp – You attend to the repair of the external cause

Rising Damp – A Qualified Dampair Specialist conducts your FREE SURVEY – Rising Damp is diagnosed. Dampair advise on Damp Proof Coursing or replacement membrane.

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    General DampRising DampVentilationMould ProblemsPlastering & RenderingCellar ConversionCondensation Issues+ Not Sure