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Tide marks are left on the wall, one of the most common signs of rising damp. The salt in the earth and its evaporation generate tidal marks. They can be seen up to 1m above the skirting board if you look above it.
If you don’t see any tide markings, you might notice damp patches or staining on the walls. Typically, you’ll notice a moist patch that’s brown or yellow in colour and resembles tide markings. Above the skirting board, you’ll be able to see these as well.
Look carefully to see if your wallpaper starts to come away from the skirting board and curls up in the corner.
Keep an eye out near the skirting board if you spot fungus forming or creeping out on the side. Rising damp can destroy timbers and come into contact with various objects, as can other types of dampness. Also, look for loose paint or sections of paint that have been damaged.
Salt in the form of white flaky deposits is another sign. When the salts are washed out of your brick and into the plaster, they appear as blistering patches on your walls.
If you notice black mould growing over your skirting board, it’s a sign that there’s a source of humidity in the area. It could be a warning sign of rising dampness if there is no other evidence of black mould in the home or elsewhere, and the black mould is localised from the skirting board up to 1m above.
If none of the initial indications applies to your damp problem, take a look at the following if you still suspect rising damp:
Examine the area where you feel there is rising damp and rub your fingertips around it. If you have wallpaper, you may hear the salts that have been drawn above ground crushing.
Look at the stones or brickwork if there is an exposed surface. Check if the brick is damp or if salts are forming in addition to the paint or wallpaper.
It’s also worth noting that rising damp will only occur on the ground floor levels since moisture from the earth is pulled up the wall, causing the problem.
The most common mistake that allows damp to spread is confusing it with condensation effects, where water vapour becomes liquid by contact with cold surfaces. Surface condensation can have a similar appearance, but a few tell-tale signs indicate the problem is present.
Investigating the conditions from beneath the depths of the wall can indicate whether or not your home is damp. According to specialists, taking masonry samples, particularly mortar, is an excellent way to define rising damp. You have rising damp if the samples reveal evidence of water penetration. If you have a condensation problem, this will not be the case.
A Damp Proof Course (DPC) is a treatment option for rising dampness rather than condensation. In any instance, if you misapply it, you will not be able to address the problem. Any misdiagnosis will result in the use of the incorrect solution.
The best course of action is to contact Sussex Damp Experts, who have well-qualified professionals and a good reputation in the industry.
The first step in resolving any moisture issues in your property is to conduct an inspection. Our Sussex Damp Experts will not search for problems that don’t exist to make money. Instead, they will only report on actual damp issues and offer valuable and cost-effective solutions.
Our damp proofing specialists can evaluate your property, elaborate a damp survey, and suggest the best course of action for repairs.
Sussex Damp Experts offers a wide range of damp proofing treatments and is confident in our ability to provide cost-effective repairs backed by our 30 years guarantees.
Whether it requires rising damp treatment, basement waterproofing, dry rot control, timber treatments or other damp proofing expertise, you can rely on our damp proofing experts to assess the problems in our detailed surveys and provide you with the most professional services to give you peace of mind for the future.
Even when rising damp is minimised, there will frequently be a tiny amount of moisture trapped in the substrate owing to salt contamination. PTL will install a chemical DPC system to control the problem if necessary. At regular intervals, the chemical DPC is injected into the walls. The salt-contaminated plaster will be replaced, and the decorative surface will be protected from any remaining moisture in the wall.
Water-attractive hygroscopic salts, which are transferred from the earth to the brickwork by increased wetness, will continue to draw moisture, especially during periods of high humidity. The damp-proof course will keep the dampness from rising any further. Re-plastering to the PTL specification is necessary if this occurs to an unsatisfactory degree. PTL has expert plasterers on staff and would be happy to give quotes for this job.
Damp proofing is a method of preventing moisture from entering a structure, especially from rising damp. A ‘tide line’ of yellowish or brownish stains or blown plaster in the bottom section of your wall above your skirting board are typical symptoms of rising dampness. You can also have decaying or moist skirting boards or floors.
Performing a minor repair for rising damp (e.g. repointing or painting over the damp) will increase the cost of the job in the long run and require you to redo the job later.
A damp proof course is a water-resistant barrier that runs the length and width of your wall. It prevents groundwater from creeping up through the wall due to capillary action.
We can offer you a variety of damp proofing choices at Sussex Damp Experts, each with its own set of advantages. A damp proof course (DPC) is a method that aids in the control of rising dampness by regulating the moisture caused by capillary action.
A damp proof membrane (DPM) is a unique membrane added to a DPC to combat dampness. A DPM can use a silicone material to help manage moisture. Buildings are protected from water and moisture, including rain, using this coating process. It also contains cement, such as shotcrete, which provides moisture, water, and pressure resistance. The construction of cavity walls creates a space between the inner and outside walls to keep water out, whereas pressure grouting is used to plug any gaps in masonry walls.
If you discover rising dampness in your property, act soon! Otherwise, your property may face serious issues.
Beyond the visual soreness caused by damp problems, dampness can cause severe damage to a property’s structure and compromise structural integrity if not addressed on time. There is also evidence that it can induce respiratory difficulties, albeit this mainly affects people who already have a respiratory problem. Whether you have damp developing due to condensation, leaking guttering, or leaking pipes, call our damp removal and proofing experts immediately to get it fixed as soon as possible. Our commitment to providing excellent customer service, as well as our depth and breadth of knowledge, are the foundations of our continued success.
Our team has over 20 years of combined expertise offering damp proofing in Brighton. If you are experiencing damp issues in Brighton and the surrounding areas, please call our damp specialist team on 01273257877 to schedule a survey or treatment.
Following our instructions, one of our CSRT and CSSW trained surveyors will thoroughly examine and provide a report, price quote and treatment suggestions.
Suppose you decide to go ahead with our damp proofing services. In that case, we have a complete team of damp proofing specialists who have a comprehensive portfolio dealing with damp problems, such as dry rot and woodworm, wet rot, wood rot, basement waterproofing, internal dampness, rain penetration, condensation control both in commercial properties and private homes.
Book a damp survey appointment or give us a call, and we can arrange for a local team to contact you. We have many rising damp investigators that can efficiently and promptly schedule a visit to your house when most convenient for you.
Call Our Sussex Damp Experts team now for quote, consultation and advice:
Call on 01273257877
The costs associated with addressing a damp problem depend on many different factors such as the property’s dimension and architecture, the type of damp causes, the materials involved, among others.
Because there’s a comprehensive range of details to consider, don’t hesitate to contact our fully trained team to book a survey and have one of our friendly team members inspect the property and fully understand the situation, thus providing you with the most cost-effective quote for treatments and repairs.
We follow excellent standards in damp proofing treatments, professional re-plastering, wood preservation and are experts in performing damp surveys.
We provide highly customised, competent, and dependable damp proofing treatment and repair services to homes, local authorities, small businesses, and large commercial properties.
Call us today on 01273 257 765 to speak with a member of our helpful team about your needs.
For your safety and security, all of our work is covered by our company’s guarantee. We are also members of the Guarantee Protection Scheme, an independent insurance policy that covers the duration of your guarantee if you want to take it out.
Posted on Google Tony ShepherdTrustindex verifies that the original source of the review is Google. A massive big thank you to you guys!! Couldn’t recommend you enough!! Friendly, professional and very knowledgeable on the task at hand. The damp in my house has been driving me mad for years and my house is like new again thanks to you guys. You have done an amazing job and I am honestly so happy with the end result. Thank you once again and please if anyone wants to get your house damp free, please contact Sussex Damp Experts! Amazing work!Posted on Google Elle WhiteTrustindex verifies that the original source of the review is Google. Recently had Sussex Damp attend to a persistent damp problem in my home. From the initial consultation to the completion of the work, their team displayed professionalism and expertise. They accurately diagnosed the issue and implemented an effective solution! The work was completed on schedule, and the team ensured the area was clean and tidy afterward. I highly recommend Sussex Damp for anyone facing damp issues in their property 😄Posted on Google Luke HornerTrustindex verifies that the original source of the review is Google. Huge thanks to Sussex Damp for sorting out the damp in my home! The team was absolutely fantastic—friendly, professional, and really knew their stuff. They made the whole process stress-free, and I now feel so relieved that the problem is completely sorted. Would 100% recommend them to anyone dealing with damp issues!Posted on Google Lilly HooperTrustindex verifies that the original source of the review is Google. I had an excellent experience with Sussex Damp Experts. Their team was professional, knowledgeable, and efficient in resolving the damp issues in my property. They took the time to explain the problem and provided clear solutions, which gave me peace of mind. The work was completed to a high standard, and I was impressed by their attention to detail. I highly recommend Sussex Damp Experts!Posted on Google Erin RobinsonTrustindex verifies that the original source of the review is Google. "I recently had Sussex Damp Experts come to my property, and I couldn't be more impressed with their service. They carried out a thorough survey and provided a very detailed report that identified rising dampness in my home. The team was professional, friendly, and efficient throughout the entire process. They completed the necessary work with great attention to detail and left the property clean and tidy. It was a pleasure working with such a reliable and knowledgeable company. Highly recommend Sussex Damp Experts to anyone in need of damp treatment!"Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
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© 2026 Damp Experts Group Ltd. All rights reserved. | Company Number: 02562865
Correspondence address: Palmerston House Farren Court, The Street, Cowfold, West Sussex, England, RH13 8BP
© 2026 Damp Experts Group Ltd. All rights reserved. | Company Number: 02562865
Correspondence address: Palmerston House Farren Court, The Street, Cowfold, West Sussex, England, RH13 8BP