top of page


Damp and condensation can be caused by many different things, which can make it tricky diagnosing damp issues and the causes. There are a number of different visual indicators for the different causes of damp and condensation problems. These can help you a great deal in diagnosing damp problems and fixing them. We use high-tech equipment and our 30 years' experience to diagnose and resolve your damp issues.

Our Service

Understanding the cause of damp in buildings is one of the most common problems that property owners and professionals face. Water or moisture can be introduced into a structure through a vast range of possible sources. The key to being able to diagnose the fault is to understand the range of water sources and be able to test for them.

Our extensive knowledge of building envelopes, environments and plumbing systems, coupled with our unrivalled range of test methods, makes Cobalt Carbon Free the industry professional in this field. Our Damp Diagnostics service gives customers an impartial and unbiased diagnosis. By understanding the root cause of the problem, we can advise customers on the appropriate remedial solutions.

Our external checks

We typically look at the general state of repair of the property. We look for evidence of poor maintenance, often the source of water ingress and penetration into a property.

These include:

  • Brickwork, rendering & mortar

  • Roof – condition of roof tiles or flat roofs

  • Downpipes & guttering

  • Flashing around chimney stacks and in adjoining elements

  • Damp proof membrane – any evidence of missing, breached or faulty DPM

  • Waste pipes

  • Outside doors

  • Window units (paying particular attention to double glazed units and any lack of ventilation)

  • Air bricks – check for blockages

  • Measurement of moisture, humidity and temperature in all building materials with hi-tech measurement equipment.

Our internal checks

Damp and mould will often be concealed within the building structure. For example in cavities, under floorboards and behind skirting boards.

Wherever mould is evident, there is usually much more of it hidden within the building structure.


We use a wide range of sophisticated technical equipment to identify and analyse the contamination in these hidden areas.


Endoscopes and Borescopes with attached cameras allow a detailed internal visual inspection in hard to access areas without major disruption or damage to the building and its contents/decor.

bottom of page