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Written by Warren Muschialli

Rising Damp

This is when water from the ground rises through the brickwork, stonework or through the mortar. It is unsightly and unhealthy, and usually a problem in houses built pre-1925 when damp proof courses were not commonly installed.

It is less common in modern properties, but can occur where the original damp proof course has become damaged or the ground level around the property has been raised with the addition of paths, flower beds or driveways, which have bridged the original damp proof course.

Penetrating Damp


This is the result of water successfully penetrating from the outside of the building through the fabric of the wall.

It can affect all buildings and is most commonly caused by problems with the roof, brickwork or windows – leaky pipes, blocked gutters, defective pointing or poorly maintained brickwork. It can be damaging even if it does not penetrate all the way through a wall, potentially leading to more serious problems such as dry rot, wet rot or structural damage.



This is the most common form of dampness within a building, and can cause unsightly black spot mould, peeling paint work and a musty smell.

Condensation happens in almost every property as a result of the moisture created by everyday living, from breathing to boiling the kettle, moisture is present in the warm air of your home and then deposited on cool internal surfaces such as pipes, windows and walls.  

How To Treat Damp Walls

Whatever the damp problems you are facing, Newton products can help.

We have a full range of damp proof membranes which can be applied directly to the wall, as well as condensation treatments and thermal paint for treating the wall surface, and we can help you to ascertain which products are best for your requirements. Read more here: Newtonite Damp Proofing System.

Damp Proofing Packs

You can buy our Damp Proofing packs online which contain damp proofing membranes and necessary fixings – and if you order in the morning you can usually receive them the next day via our couriers. Visit Damp Proofing Shop.

Who Installs The Products?

Our damp proofing products can be installed by competent DIY homeowners and builders.

However, where there is a requirement for an installation guarantee from a Damp Proofing Specialist, you can use one of our Newton Specialist Damp Proofing and Basement Waterproofing Installers (NSBC). NSBCs can also undertake surveys to diagnose the problem and recommend the best solution. Request list of contractors in your area

What If I Have A Damp Basement?

Our damp proof membrane systems are designed to deal with above ground damp problems.

For basements and cellars, a full and robust waterproofing system is required. We can help advise the best products and contractors for basement waterproofing projects. Basement Waterproofing Explained

What Next?

Please use the form below to contact our technical team, who will be able to provide advice on your project and a list of contractors in your area.

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Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.

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