Water forms on cold surfaces when relative humidity reaches 100%RH.

85% of damp issues in homes results from condensation.
Condensation can normally be stopped for little of no cost if you follow our top tips on ventilation.

Dampness in homes

Condensation is commonly found at the base of an external wall, doors and windows surroundings and on other cold surfaces, such as under poorly insulated, flat or eaved roofs and metal attachments to buildings.

Rising damp

It is also common for condensation to become absorbed deep into a wall.
Wet bricks are poor insulators, reducing the temperature increasing the risk of condensation. Water is drawn down by gravity, this is why condensation often appears to be rising up and why condensation is often mistaken for rising damp. Read more…

Damp profile

Unlike other forms of dampness; rising damp, penetrating damp and mains water leaks, condensation;

  1. is often at the base of the wall, with a rise of dampness into a corner and door surround,
  2. rarely causes discolouration (except interstitial condensation),
  3. is normally patchy (as a damp wall loses heat, increasing the risk of condensation).

Don’t assume your ventilation works!

It is wise to assume you have condensation first, before considering more damaging, disruptive and expensive solutions.

Many clients spent thousands on chemical damp proofing treatment or roof replacement, before finding out that the root cause is condensation and that the remedy is virtually FREE.

Never accept the survey of a contractor without an independent opinion.

Good independent surveyors save £5,000 (ave.), with less damage and disruption.

Many surveyors refund fees if they can’t stop damp without chemical treatment.

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