Damp patches on your walls or water in your basement? Damp proofing tackles the cause so the problem doesn't keep coming back. Moisture can get in through the ground, through the walls, from leaks or from condensation inside, and each needs a different fix. That's why it pays to have an experienced damp specialist diagnose the problem before any work starts. Below you'll find the basics, a few practical tips and an easy way to contact local specialists.
Tip: be wary of anyone who quotes for a treatment without measuring moisture levels or explaining the cause. Get a second opinion if you're unsure.
Basement Damp Proofing
Damp basements are common, especially where the water table is high, and older homes often have damp in crawl spaces and cellars. Find out what causes it and how it can be solved.
Damp Proofing Walls
There are several types of damp in walls, and each needs a different treatment. Getting the diagnosis right matters most. This page looks at damp in walls and how to fix it.
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Frequently asked questions
What causes damp in a house?
The most common causes are rising damp from the ground, penetrating damp through porous or damaged walls, condensation from poor ventilation, and leaks from pipes, roofs or gutters. Often it is a combination of factors.
How do I know which type of damp I have?
Rising damp usually shows as a tide mark low on the wall, penetrating damp appears after rain on outside walls, and condensation shows on windows and cold surfaces. A specialist can measure the moisture and give a reliable diagnosis.
Can I treat damp myself?
You can reduce condensation yourself by ventilating and heating well. Rising and penetrating damp, however, usually need professional treatment such as wall injection, a new damp-proof course or facade impregnation.
What does damp proofing cost?
The cost depends on the cause, the size of the affected area and the treatment method. Comparing several quotes is the best way to find a fair price for your situation.
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