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Bedroom damp caused by poor air circulation

Left untreated, damp can be bad for both your health (the mould and spores can aggravate respiratory problems such as asthma) and the health of your property: If any form of damp is left unchecked it can cause a number of potentially serious issues, including damage to decorated surfaces, or timber decay and even wet rot, which can lead to structural deterioration, and may necessitate major repair costs. More »

Penetrating damp in brickwork can cause major wall instabilities

Whether it’s damp proofing walls to prevent penetrating damp, treating rising damp, or dealing with condensation problems, damp proofing costs needn’t be prohibitive, though selecting the appropriate treatment will depend on the results of the damp survey. More »

Deep wall damp can be almost hidden behind plastering and wall paper

Penetrating damp: Once the source of the water ingress has been identified and repaired, treatments such as silicone water repellents, bitumen coatings, or a waterproof membrane can be applied to guard against future damp problems. More »

Brickwork affected by damp can cause serious problems for your home

Rising damp: Specialist creams are injected into the brickwork to form a waterproof barrier at the base of the wall; this will prevent water rising and penetrating into the building. Once the brickwork has dried out, the interior walls are re-plastered with plaster containing a waterproof additive. More »


Category Archives: Blog

Damp Proofing in the Summer

The summer season is the best time to carry out damp proofing works on your property, especially if your property has suffered from damp issues during the cold and damper months. Problems such as rising damp and penetrating damp can cause structural issues as well as health issues to the property occupiers, it therefore better to solve the damp issue earlier rather than later.

Damp and mould growth

Rising damp is a common problem that usually occurs when the ground is wet and the moisture from the ground is absorbed up through the walls. This moisture is then absorbed by the masonry via capillary action, being carried up through the walls that are in contact with the wet ground, causing damp issues within the property. Ordinarily rising damp can rise up to about one metre high, leaving a tide line across the affected wall however in severe conditions it can rise up to 2 metres high.

Tide line from rising damp

This issue can usually be resolved by installing a damp proof course, which prevents the moisture rising up the walls. However once the damp walls have dried out, it is possible the wall can be contaminated with ground salts on the surface. This can cause further damp issues even after the damp proof course is installed, as it is moisture retaining. As a result any moisture within the property is absorbed and retained to the effected walls causing further damp problems.

Blown plaster from damp issues

In order to prevent this from occurring the plaster is to be removed and re-plastered with an added salt retardant to prevent any further salts migrating up the wall. With the warm weather drying out the ground water, it is an ideal condition for treatments to be carried out, as it speeds up the drying out process for the wall and plastering enabling the affected areas to be habitable much quicker.

For more information about damp issues within your property give our team of damp specialists a call on 0800 0193 022 or to arrange a survey why not complete our on-line damp survey request form and we will contact you directly to arrange a damp survey.

Vapour Barrier Membrane System

As we enter the summer season, many homes are slowly recovering from the flooding that hit the UK. With many homes left with failed damp proofing courses, flooded basements and potential damp and mould growth within the properties, only over time can the property dry out completely. Our Damp proofing specialists are here to lend a helping hand in this stressful time, repairing the damaged caused from the extreme weather conditions.

Our specialists look specifically into helping properties avoid secondary flooding by providing a long term damp proofing solution for your property –  this enables the property to dry out naturally without effecting interior decoration. In the long term this can prevent problems such as mould growth and rotting of the structural timbers.

Vapour Barrier Membrane

One of the ways in which a surveyor can allow for a property to dry our naturally is to install a vapour barrier membrane system. Initially the damp walls may be dried out using an industrial fan at the time of the flooding, however this may not guarantee that the wall is completely dry all the way through. With the vapour barrier membrane system, this can be installed on the damp wall which allows air to the damp wall to dry out progressively without spoiling interior decoration by creating a gap between the wall and the plaster board. This allows the occupant to redecorate on the interior walls without the worry of damp coming through.

Our Damp Proofing Specialists deal with properties that suffer from damp on a daily basis, with over 45 years’ experience and knowledge at their disposal, they are able to survey the property to determine the type of dampness the property may be suffering from. From the findings of the survey, our specialists are then able to recommend the best solution for the dampness problem or a solution to alleviate a condensation issue.

Our damp proofing specialist

The surveyor will specifically search for moisture ingress within the property that has been affected by the floods. Inspecting the walls, masonry and timber flooring using a Protimeter, this enables the surveyor to investigate if there is a high level of moisture and if so the best way to remediate the problem. If the moisture content is too high the wall, masonry and structural timbers can be prone to timber decay, damp and mould. The surveyor can also take samples of contaminated plaster to determine if the plaster has been effected by hygroscopic salts from carrying out a speedy carbonate test. In the event the plaster is contaminated with salts the wall needs to be re-plastered to remove the hygroscopic salts to prevent further moisture entering the walls.

If you suspect you have a damp problem as a result of the floods, speak to one our specialists on 0800 0193 022 or alternatively fill out our online survey request form

Basement Waterproofing for a Flooded Basement

With the recent weather taking a turn for the worst our Damp Specialists have been helping homeowners across the UK with a variety of damp related problems. With the recent flooding causing much distress to many home-owners it is reassuring to know that our Damp Proofing Specialists are here to lend a helping hand.

One of the most common problems we have been helping people with as a result of the recent weather conditions are flooded basements. Flooded basements can potentially cause damage to interior decoration and furniture and thats before you even start to look at the repair costs! Usually basement flooding is caused by a failed waterproofing system or that the basement was not waterproofed in the first place.

As our Damp Specialists deal with these encounters on a daily basis, they are experts in their field of work and can recommend the best waterproofing system, specifically designed for your property.

Waterproofing your basement

As basements are below ground floor level they lie beneath the water table. There is usually a protective coating on the exterior wall below ground however, over time this coating may deteriorate allowing water to penetrate through the walls and floors and into the basement. In severe cases, such as the recent flooding, this is also likely to happen to existing waterproofing systems if they have not been installed correctly.

One way that our Damp Specialists use to solve this issue is through the installation of a waterproof membrane to the interior walls.

Basement Waterproofing System

The cavity drain membrane diverts the water  by letting it run down the back of the membrane and then collecting it in a channel, fitted at ground level, around the perimeter of the basement. This water is then collected in a sump and pump unit which is fitted below floor level (see above) and is finally pumped away from the building to a convenient drain off point. As a result, this helps lowers the level of the water table, easing the pressure on the basement walls.

Once the waterproofing system is installed the walls can ready for plastering and decorating, turning your basement into a suitable storage area or extra living space.

Further Help and Advice

If you have suffered from flooding in your basement or would like to have your basement waterproofed to stop any further damage to your property, speak to one of our Damp Specialists on 0800 0193 022 or complete our general enquiries form online for help and advice and will contact to you as soon as possible. For more information on Basement Waterproofing, check our infographic on Basement Waterproofing.

Top Tips for Damp Proofing

Peeling wallpaper with black spot mouldHave you noticed the wall paper peeling off or the paint work flaking off walls at home, or even damp patches on external walls? Not to worry, The Damp Proofing Specialists are here to help with their tell-tales signs for damp and ways to prevent it.

If you do notice a damp issue within your property, it is better to deal with it sooner rather than later, as the issue will only get worse if ignored. Damp can not not only damage the aesthetics of interior decoration within the property but also the structural integrity, leading to much more costly and time-consuming repairs.

There can be various reasons behind a damp problem and it is essential to identify the correct source of the problem, in order to provide a suitable damp treatment for the property. It may be rising damp, penetrating damp or dampness through condensation.

Signs of dampness to look out for

Checking external wall for damp

In the event that you may already have a damp proof course installed yet the property is still suffering from damp issues, it may be due to something preventing the damp proof course from doing its job of keeping the moisture out of the property. To check if you have an existing damp proof course, look out for a line of a damp proof course several inches above ground level on exterior walls. The damp proof course may be physical damp proof course (such as a membrane) or a chemical damp proof course – this can usually be identified by visible drill holes.   If the path, patio or garden is higher than the damp proof course, however there is a possibility the damp proof course will be ineffective.

One other possible source of damp is a weakened structure of the property such as, deteriorated pointing or cracked rendering or even perhaps the brick work. As over time the bricks can become porous, allowing dampness into the property.

Other frequent causes for damp consist of missing or clogged guttering and drainpipes, missing or loose flashing or loose roof tiles. Flat rooftops can likewise result in leaks and damp as they only become waterproof if correctly sealed.

Ways to prevent damp problems on brickwork

To prevent brickwork from becoming porous there are liquid sealants available to apply on to the exterior brickwork and should only be applied when the brick work is dry. This will allow the bricks to remain dry and enable the property to keep in the heat.

There are also liquid seals for internal walls that can prevent damp from entering the property, however these are only effective on walls that are not below ground level and only effective once the initial cause of the damp problem has been dealt with. Before painting liquid seals onto internal walls, the wall must be stripped off from any wallpaper or flaking paint and must be thoroughly cleaned, free from any moulds. Moulds can be removed with a mould eradication kit.

Mould and eradiction kit

To help with the removal of mould in properties The Damp Proofing Specialists can offer a super value mould removal kit to remove mould and prevent mould growth coming back. The kit is available to purchase on-line for £36.95 inc VAT and delivery.

Further Help and Advice

To find out more about mould and damp give our team of damp specialists a call on 0800 0193 022 or complete our general enquiries form online for help and advice and will contact to you as soon as possible.

The Effects of Damp and Mould on Health

Damp is a problem which can affect almost any property, but particularly more aged properties that do not include an adequate damp proofing course or even have inadequate ventilation. Damp can develop when the moisture content in the air is unable to escape from the room, as a result the moisture condenses on cool surfaces such as walls and windows. Over time, this dampness may cause an issue, encouraging the growth of fungi, which can emerge as green and black coloured spots, usually collated in a cluster on the contaminated surface as can be seen in the picture below.

Black spot mould

The health implications of damp and mould

Mould can prove to be a health issue, especially for those in regular exposure to mould and damp. For example – those who have respiratory difficulties, specifically individuals with asthma, might discover that their symptoms worsen while they are around this type of atmosphere. Mould may also trigger problems with skin allergies, encouraging or aggravating existing symptoms.

Mould is certainly a cause of many common health issues, and is especially a concern in Britain due to the climate of frequent damp and cold weather spells. One of the key areas that mould may gather is in areas such as carpet pile, which can then simply be released into the air and simply inhaled again.

The importance of being aware

Awareness of the effects of damp and mould on health is quite low and people should really be conscious of how and why mould can potentially cause health issues, even in people regarded as fit and healthy. The most typical health issues involving mould include sinusitis, asthma and bronchitis.

Properties that have suffered from flooding over the past twelve months are also susceptible to the  development of mould. Given the right environment the mould could develop rapidly throughout the property in only a few months following the flooding. Mould may be found on wallpaper, behind wall tiles and also windowpanes. Radiators also prove to be a hotspot for mould. It is advised that homeowners frequently check for symptoms of mould. If you suspect damp or mould in your property contact a specialist who can conduct a damp proofing survey to identify the cause of the dampness and suggest  the best way of damp proofing system for your property.

Removing mould and damp

Super Value Mould Removal Kit

To help with the removal of mould in properties The Damp Proofing Specialists can offer a super value mould removal kit to remove mould and prevent mould growth coming back. The kit is available to purchase on-line for £36.95 inc VAT and delivery.

Further Help and Advice

To find out more about mould and damp give our team of damp specialists a call on 0800 0193 022 or complete our general enquiries form online for help and advice and will contact to you as soon as possible.


CPD Seminars from The Damp Proofing Specialists

Join the Damp Proofing Specialist CPD lunch club!

CPD Seminars – your chance to learn from the Damp Proofing Specialists

We present Continuing Professional Development (CPD) seminars for our clients providing a suitable forum to offer industry advice and answer any specific questions. All our seminars are run by one of our team of experienced surveyors that can be presented with ease and comfort of your own offices at hassle-free time for yourselves.

There is no charge for our CPD seminars.

At present we provide seminars on the following subjects:

Basement Waterproofing Solutions 

Calling upon over 10 years of expertise in the successful treatment of flooded basements, Timberwise can enrich the participants understanding of BS8102 regulations along with the pros and cons of the numerous kinds of waterproofing treatments available today. (Download our Basement Waterproofing CPD Info sheet)

Causes, diagnosis and rectification of dampness in properties

This common CPD seminar examines rising damp together with condensation issues in properties and explores the ideal techniques to correct dampness in the property. (Download our Dampness in Buildings CPD Info sheet)

Air Quality – The source of condensation and condensation control

This seminar specifically looks at condensation and largely the sources of condensation and mould development in properties. Solutions to condensation issues are likewise studied thoroughly. (Download our Air Quality – the cause of condensation and condensation control CPD Info sheet)

‘Lunch & Learn’ with the Damp Proofing Specialists

Why not take up our ‘Lunch & Learn’ Offer? – book one of our CPD training seminars and we’ll provide the lunchtime refreshments for anyone participating in the CPD. What could be better? CPD points along with a free lunch!

Take a look at our CPD seminar leaflet that provides information on all our CPDs.

Arranging a CPD seminar couldn’t be easier

Simply call the team on 0800 0193 022 and we’ll be happy to arrange a seminar for you.