Penetrating damp Specialists

Advanced Damp is an experienced team of penetrating damp treatment specialists. Our company have over 30 years experience and cover the South East of England and surrounding areas. To contact us and rectify your problem immediately, call us now on 0300 373 7251.

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About Penetrating Damp

What is Penetrating Damp?

Penetrating damp is caused by water infiltrating a building or property through the external wall, defective pointing, roof, cracks or underground area of a building. Though it is commonly noticed in older buildings, it can also affect modern buildings with poor drainage system or defective masonry. It occurs when there is a defect in the building like a leaking roof, leaking water pipe, poorly constructed gutter channels, holes in the chimney and also when the external walls of a property have degraded thereby allowing water to penetrate from the wall into the building. Penetrating damp is also common in poor cavity wall construction where cavity wall insulation has been poorly installed or walls that are not suitable for cavity wall insulation are used in the installation process. Penetrating damp is more common if you live in an area that experiences heavy rainfall.

Common signs of penetrating damp :



Water marks on walls, ceilings, cabinets, carpets are all signs you are dealing with Penetrating damp. If the stain has dark spots, know that the damage is still fresh but if it brown or chalky, then it is older damage usually caused by excess moisture.


Blistering Plaster

when the inside of a wall gets wet and expand, it is usually accompanied by blistering plaster, peeling paint or wallpaper. This shows that there is a problem which should be fixed as soon as possible.


Presence of mold

Mould can’t grow without moisture, as long as areas in your home remain wet moulds are bound to grow. This is usually a problem noticed where we have Penetrating damp.


Damaged interior

If your interior decorations become damp and has water stains, know that you have the problem of penetrating damp in your hands.


Damp or Musty odor

Damp or musty odour is another of the sign of Penetrating damp on interior walls. The musty smell is often similar to winter sweaters that have been packed away.


Rotting floor timbers

If your floor timber is wet and rotting away, it means there’s a problem of penetrating damp around. Contact a specialists for penetrating treatment advice.

Penetrating Damp Treatment process

Penetrating damp solutions

In order to treat penetrating damp we first visit your property and carry out a penetrating damp survey to determine the cause of the problem, during the survey we will check all potential points of water ingress, such as cracks on the walls, missing tiles or blocked gutters.

Once the penetrating damp issue has been diagnosed we begin our remedial work to effectively repair the penetrating damp problem and keep your protect your property from further damage. Depending on the level of the damp, we may install a PIV unit in your property to stop penetrating damp that will push out the wet, stale air and keep your walls and windows dry. If the problem has to do with the brickwork or stone work becoming porous due to the build-up of water in the wall, we use specialised Vapour retarders to reduce moisture diffusion through the walls, floors, and ceilings then use specialised drying equipment to do the rest in treating penetrating damp.

If the penetrating damp has affected the plasterwork of your property, the affected plasters will be completely removed and a damp resistant plaster will be applied to resurface the area.

If defective brick is the problem, we may get them replaced or paint the bricks with an exterior silicone water-repellent fluid to seal the bricks from damage.

If the timbers have been infected with dry or wet rot rising damp patches, these can be either treated, protected or replaced. A damp proof course may be installed too.

Finally if you have a mould problems, we commence remediation to remove contaminated materials and clean up the affected areas.

Get in touch now for effective and reliable penetrating damp treatment.


Call us today for more information on 0208 629 1517

Advanced Damp offer Specialist penetrating damp treatment and comprehensive damp protection for your home!

Penetrating Damp specialist

Most of the time it is recommended that you look for damp experts in the field who will identify penetrating damp and correct the defect in the building that is causing water to penetrate the building. If the condition is left untreated, it can cause deterioration to the structure of your property. At Advanced Damp, we have qualified and competent damp surveyors to prevent penetrating damp problems as well as experienced technicians to provide affordable penetrating damp treatment.

We also offer rendering, exterior wall coatings, and drywall plastering solutions for penetrating damp treatments. visit our property services page on our website to find out more about these services we offer.

damp penetration on wall


If you're dealing with penetrating damp in your home, you probably have a lot of questions. Our FAQs page is here to help! We've gathered some of the most common questions about penetrating damp and provided straightforward answers to help you understand the causes, effects, and solutions for this frustrating problem. Whether you're a homeowner, a landlord, or a tenant, our FAQs page can help you get the information you need to deal with penetrating damp effectively.

Penetrating damp is a type of dampness that occurs when water penetrates through the external walls of a building and makes its way into the internal spaces. It is often caused by defects or damage to the external walls of a building, such as cracks in the brickwork, faulty pointing, or damaged roofing or guttering.

Penetrating damp is caused by water entering a building from the outside. This can happen when there are defects or damage to the external walls, such as cracks in the brickwork, faulty pointing, or damaged roofing or guttering. It can also occur when water is allowed to accumulate around the base of the building, leading to rising damp.

Signs of penetrating damp include damp patches on walls, peeling wallpaper or paint, musty odours, and visible mould growth. These signs can be present on both external and internal walls of the building.

To prevent penetrating damp, it is important to maintain the external walls of your building. This may involve repairing any cracks or damage to the brickwork, ensuring that your guttering is in good condition, and fixing any issues with your roofing. It is also important to ensure that the ground around the building slopes away from the walls to prevent water from accumulating.

The treatment for penetrating damp will depend on the severity of the issue. In some cases, simply repairing the external walls or fixing a faulty gutter may be enough to resolve the problem. In more severe cases, you may need to use a specialist damp-proofing treatment or re-plaster the affected areas. It is important to seek professional advice if you suspect that you have penetrating damp.

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