Damp Proofing across Wales including Cardiff

From Neath, we provide damp proofing services throughout Wales, including Newport (Gwent), Cardiff, Bridgend, Swansea, Carmarthen, and Haverfordwest. 

Between 2015 and 2017, an estimated 23 million houses in the UK were impacted by damp, with beachfront residences being among the worst hit. Cavi Clear Ltd can safeguard your home from the detrimental impacts of damp by delivering a comprehensive damp proofing solution that addresses all of your property's primary damp weak points. Get it sorted today by getting in touch on 01639 790426.

Explaining Damp Proofing

Damp proofing is a process used to prevent moisture or water penetration into buildings and structures. It involves various techniques and materials to create a barrier that prevents dampness from affecting the integrity and stability of a structure. Dampness can lead to a range of issues, including moUld growth, decay of building materials, and deterioration of the overall structure.

Here is a general overview of the process of damp proofing:

  • Assessment: The first step in damp proofing is to assess the extent of the dampness and identify its source. This involves inspecting the affected areas, examining the building's construction, and determining the underlying cause of the moisture problem, such as rising damp, condensation, or leaks.
  • Identification of Solutions: Once the source of dampness is identified, appropriate solutions can be determined. The choice of damp proofing technique depends on the specific problem and the building's construction. Common solutions include the installation of a damp proof course (DPC), the use of waterproof membranes, and the application of specialised coatings.
  • Damp Proof Course (DPC): A damp proof course is a horizontal layer or barrier inserted into the structure to prevent moisture from rising through walls or floors. DPCs are typically made of materials such as bitumen, plastic sheets, or chemical compounds. They are installed during the construction phase, but retrofitting DPCs is also possible in existing buildings.
  • Waterproof Membranes: Waterproof membranes are another effective method of damp proofing. They are applied to walls, floors, or foundations to create a physical barrier against moisture. These membranes can be made of materials like bitumen sheets, cementitious coatings, or liquid-applied membranes. Waterproof membranes are commonly used in basements, bathrooms, and other areas prone to water intrusion.
  • Specialised Coatings: Certain coatings can be applied to surfaces to provide protection against dampness. These coatings, such as epoxy or polyurethane-based products, create a waterproof seal and prevent water penetration. They are often used on concrete surfaces, such as basement walls or floors, to protect against moisture and improve overall durability.

It's worth noting that the specific process of damp proofing can vary depending on the building's construction, the severity of the dampness, and local regulations. Therefore, it is advisable to consult with a professional damp proofing specialist or a qualified contractor to assess the specific requirements of your building and determine the most suitable damp proofing solution.

Issues Caused by Damp

In addition to the structural damage, damp in your home's walls and surfaces provides an excellent environment for mould and germs to thrive. The repercussions of leaving damp can exacerbate health problems like asthma and eczema and can be particularly detrimental to youngsters and the elderly. 

Cavi Clear Ltd provides excellent damp protection and prevention using tested procedures and high-quality materials. Our damp proofing service can help you get back to breathing clean air and having dry walls. 

If damp has penetrated the inside of your walls and insulation, it's likely that your home isn't effectively keeping heat inside, resulting in low energy efficiency throughout.

Signs of Damp 

Damp is a common problem that can occur in any home or building. It can cause a range of issues, including damage to walls, ceilings, and floors, and can lead to health problems if left untreated. Here are some common signs of damp:

Musty Odour

Damp areas tend to have a musty odour due to the growth of mould and mildew. If you notice a persistent musty smell in a specific area of your home, it could be a sign of damp.

Visible Mould Growth

Mould and mildew can grow on walls, ceilings, and other surfaces when there is excessive moisture present. If you notice black, green, or brown spots on walls, floors, or ceilings, it could be a sign of damp.

Water Stains

Water stains on walls, ceilings, or floors can be an indication of damp. These stains may appear yellow or brown and are often accompanied by a musty smell.

Peeling or Cracking Paint

Moisture can cause paint to peel or crack on walls, indicating the presence of damp. If you notice paint peeling or cracking in a specific area, it could be a sign of damp.


Condensation occurs when warm, moist air meets a cold surface, such as windows or walls. If you notice excessive condensation on windows or walls, it could be a sign of damp.

Warped or Buckling Floors

Dampness can cause wooden floors to warp or buckle, indicating the presence of damp. If you notice that your wooden floors are warped or buckled, it could be a sign of damp.

Allergy Symptoms

Damp areas can lead to health problems, including allergies and respiratory issues. If you or your family members are experiencing allergy symptoms such as sneezing, coughing, or wheezing, it could be a sign of damp.

Why should you choose Cavi Clear Ltd? 

Our primary goal is to achieve excellence and provide exceptional customer service to all our clients. Every day, we put in a diligent effort to ensure that we deliver top-notch communication, information, and service provision. With our extensive years of experience, we have acquired expertise in damp proofing, and we pride ourselves on working closely with both residential and commercial customers. By handling all aspects of the process in-house, we ensure a seamless journey from beginning to end. This comprehensive approach allows us to maintain complete control over the project, ensuring superior quality and customer satisfaction at every step.

We are also OSCAR registered and have various accreditations from them, so you can be certain that our team is well-trained and certified. 


We're proud of our customer feedback and reputation; read our reviews to discover what they have to say about us.  If you'd like to see some of our work take a look at our gallery.

Get in touch with Cavi Clear Ltd for damp proofing

Cavi Clear Ltd is based in Neath and serves a wide range of customers throughout Wales, including Newport, Cardiff, Bridgend, Swansea, Carmarthen, and Haverfordwest. We are your local damp proofing experts, with a significant amount of experience under our belt. 

Make an appointment with us today if you'd like one of our experts to inspect your property. We provide free surveys and quotes with no obligations. 

If you have any additional questions or require expert assistance, please contact us today by calling 01639 790426, emailing caviclear@gmail.com, or filling out our online contact form

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