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Groundwater entering wall cavities due to capillary action is the cause of rising damp. Porous bricks and mortar contain numerous tiny capillaries which allow water to ascend. Salts in this water, which has seeped up through the wall, can cause discoloration and long-term damage to the plasterwork.
Some homes were constructed without a damp proof course, or the DPC present has deteriorated, leading to increasing moisture and the necessity for repairs.
Rising damp occurs when a building’s damp proof course (DPC) is hindered by a high topography or fails. Water travelling up from the soil carries nitrates, chlorides, and other salts with it (hygroscopic ground salts) into the brickwork and plaster. These salts absorb moisture from the atmosphere quickly, causing it to build up in the wall as the water evaporates. To stop the moisture from increasing, it is recommended to use a damp-proofing cream injection. This is a quick, clean, and effective solution. For further information and advice from our rising damp specialists, please call **0208 0162508**.
Injection of a damp-proofing cream is the most effective way to prevent rising damp, however, effectiveness may be reduced if the issue is caused by something else. Therefore, it is essential to conduct an assessment prior to taking any steps.
This report is an investigation into the property to assess any damp issues, the degree of any damage, and what needs to be done to address or rectify the issue.
Our damp surveyors perform this process. They will assess the location and extent of damp, the potential damage from it if left untreated, the type of damp (e.g. wet rot, dry rot, condensation, etc.), and the best way to resolve it. For more information, kindly contact our expert team on 0208 0162508.
Contact London Damp Experts Now to Speak With an Expert.
For the treatment and prevention of rising damp, we deploy a variety of techniques and solutions. Injecting a silicone-based chemical into the wall through a series of small holes is a cost-effective remedy. As it dries, it generates a water-resistant barrier in the wall. Generally, some of the internal plastering containing salts from rising damp must be taken away and replaced with a salt-resistant plaster, facilitating the drying of moisture in the wall.
The contaminated plaster should be removed and a chemical damp proof course installed, using a damp proofing system which includes a Silane/Siloxane cream solution and an advanced DPC injection cream. This should be put into the affected walls with pressure, then a waterproofer should be applied to the sand and cement render backing layer.
A tell-tale ‘tide line’ of yellowish or brownish stains or blown plaster around the bottom of a wall, above the skirting board, indicates rising damp. Additionally, decaying or moist skirting boards or floors may be present. Short-term repairs, such as repointing or painting over the damp, can be costly in the long run and may require redoing in the future.
For the treatment and prevention of rising damp, we employ a range of techniques and solutions. Injecting a silicone-based chemical through a series of tiny holes into the wall is a cost-effective procedure with reliable long-term results at a reasonable cost.
A damp-proof course serves as a water-resistant barrier, spanning the full width and length of a wall, protecting it from groundwater rising up via capillary action.
A special membrane, a damp proof membrane (DPM), helps manage moisture and pressure via polyethene material and cement, such as shotcrete, beneath a sheet of concrete. Cavity walls between the inside and outside walls, as well as pressure grouting on masonry walls, keep water out. This is a common method of protecting structures from rain and humidity.
Almost all walls respond well to damp-proofing creams, which is essential as no two walls affected by rising damp are ever identical. The particular composition of the mortar used in the walls, in particular, can differ significantly, which can affect the outcome of any damp-proofing method. For expert advice, please contact us.
Once dry, a water-repellent barrier is formed within the wall. Generally, a portion of the interior plaster, tainted by salts brought on by rising damp, must be removed and replaced with a salt-resistant plaster in order to permit the moisture inside the wall to dry out. Constructing the most efficient barrier versus rising damp reduces moisture in the walls, inhibits ground salt accumulation, and decreases heat loss.
Independent tests from houses across the globe have confirmed the efficacy of the damp proofing cream in a range of environments.
Rising damp on exterior walls can cause rendering degradation, efflorescence, and masonry fissures. To eliminate this, a damp-proofing cream is recommended. This prevents further damage to walls.
An external masonry cream can be applied to the exterior wall for extra protection against water ingress. This cream isn’t injected.
The cost of a professional DPC injection varies depending on the region and provider. Generally, the rate is around £70 per metre of wall treatment, which would equate to approximately £275-£300 per wall.
The injection price is fixed, but if you wish to make further improvements to the property, such as re-plastering and decorating, the total cost will increase. Doing so will transform the building into a much better, more pleasant place, leaving you confident that damp will be kept at bay for an extended period.
Our damp proofing experts will thoroughly assess and diagnose the gravity of your dampness predicament. Our damp proofing services offer precise damp remedies and the most effective expert guidance on all damp issues related to your property: rising damp treatments, woodworm treatments, dry rot treatments, condensation solutions and structural waterproofing.
London Damp Treatments specialises in damp proofing, waterproofing solutions, timber preservation, and other property damp issues. We carry out preliminary investigations and provide damp reports, such as a damp survey, a damp and timber survey, and a timber survey, highlighting any timber issues, which may be due to timber flaws, construction defects, or previous ineffective remedial work.
We conduct thorough, non-damaging site inspections and surveys, followed by comprehensive, written reports with advice and instructions for required remedial work. Additionally, we can offer pricing and estimates for corrective work based on our findings. We will do our best to make the charges clear and give you peace of mind.
London Damp Treatment is staffed by highly competent professionals who provide outstanding service with a friendly attitude. From the initial survey to the follow-up consultation and the actual work, we pride ourselves on our expertise, professionalism and dedication to hard work. Rest assured that you are in safe hands. We offer several advantages:
Book a moisture audit and our local team will be in touch. We have multiple damp surveyors who can arrange a visit to your property at a time that suits you. Give us a call on +44 1273 257 765.
Max and his team have been at our property all week and I really can’t thank them enough for the fantastic job they’ve done on plastering both our walls and ceilings. They have literally transformed the appearance of our house! Not only has Ma…
From start to finish Max has been incredable. His knowledge lin damp proofing is second to none and his team where very clean and polite. The plastered finish was like glass so happy we choose Max Plastering for job.
Lovely bunch of lads left a very neat and clean job. Problem was solved.
Perfect Finnish and all left clean and tidy and no mess. Used Max previously and would not hesitate to ask him carry out more work.
Max, Harvey and Stuart arrived promptly as arranged. Done a great job on our outside rear wall. Work completed to a high standard, removal of all old material and cleaned up after themselves. I am so pleased with the standard of their work they ar…
They turned up on time and carried out the works in a very professional manor leaving the front of the house clean and tidy. Very impressed would definitely recommend.
I have to say that on every level Max (with Stuart and Harvey) did an extremely professional job! They explained what they were going to do, they were polite and courteous and respected that they were coming into our home. The plastering is of the…
I called max and he managed to come around the same day to do a survey. The next day I received an extremely detailed survey compared to any other damp proofer which made me feel very at ease that he was going to do the right job. Max and team tur…