Professional Damp Proofing 
Wrexham - Chester 

Mark Harvey Building Contractors

What is Damp Proofing

Damp proofing is a general term that covers methods and treatments used to prevent damp from being absorbed through walls or floors into the interior of a property. Any property can be subject to damp problems, especially older properties which may have been constructed without a damp-proof membrane. Whether it’s rising damp or penetrating damp, our property care specialists are experts at identifying the types of damp within a property as well as potential problems.

Types of Damp Protection

The two types of protection methods for damp proofing residential and commercial properties are Damp Proof Course (DPC) and Damp Proof Membrane (DPM) Most properties we live in today should have evidence of a damp proof course about 150mm (6inch) above ground level. This may be seen as a slightly thicker mortar course with a slate or bitumen sheet poking through. These damp course materials are fairly resilient, unless movement of the building subsidence causes them to crack.


Damp Proofing Walls

The build-up of excess moisture within a building can lead to damp walls which can eventually result into a handful of problems. If you notice signs of damp on walls within your property then we strongly advise you act fast to resolve the issue. Damp on internal walls is unsightly, unhealthy and is the primary cause of wood decay in a building, which can put your property at risk of structural damage. Damp proofing internal walls come as a second nature to us so you can be sure your property is in safe hands.

Diagnosing your damp

If you believe that you may need damp proofing then please contact us for a professional diagnosis. We are damp proofing experts and would be happy to call to view your property and offer our expert advice anywhere in Wrexham, Chester and surrounding areas.

The best way of dealing with damp depends on its cause. For condensation, better ventilation, insulation and more effective heating is the answer. Penetrating damp can be treated by applying water repellent coatings to external walls, and rising damp is usually prevented with an effective damp proof course. Sometimes damp problems are complex, with different causes interacting to produce extensive damage. We are the experts in the field and we can treat your damp effectively offering a 30 year guarantee.

Basement Tanking

We are specialists in basement tanking which converts a basement into a living and habitable room creating an extra room for your home and more space for you to enjoy. Basement conversion is becoming more and more popular with people who would like the extra space without having to move home or extend. The work can be completed within two weeks and all our work carries a thirty year guarantee. We are Triton and Wykamol approved and provide a fast efficient and reliable service throughout Wrexham, Chester and surrounding areas.

Our comprehensive service includes:- A visit to survey your property Expert advice as to your options Full written estimates All work fully guaranteed for 30 years All work undertaken by fully qualified people CONTACT US

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Client Testimonials

Don’t take our word for it – here’s what our clients say:

Excellent service from start to finish, nothing too much trouble, Mark went out of his way to help with other things that needed doing! Extremely friendly and very pleasant! Everyone who worked for Mark were excellent, again very pleasant, professional and cleaned up after themselves! Would definitely use Mark again and have no hesitation in recommending him!!! Thank you so much!!! Very happy customer!

James Howell

We had chronic damp problems in the walls. Mark and his team came along and worked really well and kept everything clean, and most of all solve our damp issues. A big thank you we would defiantly recommend Mark.

Wendy and John


Mark was very knowledgeable and explained everything really well before hand. Very professional highly recommended

Stuart Downing

Handbridge, Chester

Contact us

Our comprehensive service includes:- A visit to survey your property Expert advice as to your options Full written estimates All work fully guaranteed for 30 years All work undertaken by fully qualified people
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