What is Wet Rot?

Wet rot is a generic term used to define a variety of wet rot species such as Coniophora puteana (otherwise known as cellar fungus). Wet rot fungi obtain their food by breaking down the walls of wood cells resulting in a loss of strength of the wood.

This wet rot fungi is thankfully not as destructive as dry rot, however, it is more common and can still cause severe structural damage if allowed to go unchecked. Fortunately, at Timberwise, we deliver our customers an effective wet rot treatment, which prevents the regeneration of the rot efficiently, carefully and professionally.

Michael Horton Timberwise

Accredited to

Michael Horton

Remedial Surveyor and Waterproofing Design Specialist CSRT CSSW
South East

At Timberwise, we are regarded as experts in wet rot treatment and can provide efficient solutions to remove your wet rot issue. So, you’ve found wood rot but maybe you’re not quite sure what type of rot it is or how to deal with it. Like many property owners, you may be confused or mistaken due to the wide variety of wood rot types. Wet rot is a collective term used to describe many types of wood rot, but how does it affect your property and how can wet rot be treated?

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Got Wet Rot? Call 0800 288 8660 to arrange a survey or

Wet Rotten Wood

What Causes Wet Rot?

As the name suggests wet rot affects wood that is wet – it really is that simple! Wet rot is commonly found in timbers that have become damp as a result of coming into contact with, for example, damp masonry. The source of the moisture could be from various sources including:

  1. Broke water pipes
  2. A leaking roof
  3. Defective seals on baths and showers
  4. Badly plumbed in dishwashers and washing machines

In fact, anywhere there is water in the house could potentially be the source of a wet rot problem if the water has been in long-term contact with the wood.
To learn more detailed information visit our causes of wet rot page.

What Causes Wet Rot
Darkened Wood Rot

How to Identify Wet Rot

Wet rot can be divided into two types, brown and white. Both can be destructive to timber; however, both have different effects depending on the type of wood they are attacking. In addition, the characteristics of this rot will further depend on the species involved. Due to the range of wet rot species, it can often be difficult to identify and is often mistaken by property owners for the far more serious dry rot. The correct identification of the rot is necessary as the treatment of wet rot and are different.

The main indications that wet rot is harming your property are:

  • Cracking of timber
  • Weakened floorboards
  • Timber will appear to have a deeper colour to its original shade
  • A damp musty smell
  • Fungal growth

Unfortunately, the majority of timber in properties tends to be in enclosed hard-to-reach areas - such as under floorboards, behind skirting boards and door frames. As these areas are often unseen, it is not uncommon for the spread of rot to have progressed without the property owner even knowing there was a problem in the first place.

How to Identify Wet Rot
Wet Rot affecting floorboard

How to Treat Wet Rot

Wet rot treatment is the process of stopping the source of moisture and drying out the surrounding areas of the infestation. In doing so will prevent the regeneration of rot for the future.

The eradication procedure of wet rot is dependent on the severity of the issue. In most cases, minimal areas of infected timber will need to be cut out, replaced and potentially sprayed with a fungicidal treatment.

Wet Rot Treatment Process

  1. Identify the nature, type and extent of the decay
  2. Determine the cause, finding the source of moisture and drying out the surrounding area
  3. Propose the cure for the rot with full specification and method statement for the wet rot treatments
  4. Where timber affected by wet rot has lost its strength timber would have to be removed and replaced
  5. The surrounding area should be then treated with a wood hardener and preservative.
  6. Advise what additional steps (if any) are required to safeguard the property

Like most property related problems, the longer the problem has persisted without being acted upon, the worse the problem tends to be - much the same can be said for wet rot. If wet rot is spotted in its early stages, it may be the case that only small areas of timber need to be treated, in more serious cases where the rot has been able to spread across timber, replacement of entire timbers may be necessary.

In more serious circumstances, where the structural timber of a property has been significantly weakened, the recommendation of a wet rot specialist is advisable as large amounts of infected timber may need to be replaced to ensure the structural integrity of your property is safe for you and your family.

If you are having problems with wet rot then request a wet rot survey online so a surveyor can provide a full inspection and to help provide advice and necessary treatments.

Speak to a Wet Rot Treatment Specialist today

If you are having any problems with wet rot please don’t hesitate to get in touch with our specialists. You can contact us via our let’s chat’ button or alternatively, give us a call on 0800 288 8660 where our Timberwise team will be able to help with your property care problem. You can also visit our local office to ask for advice or arrange a wet rot survey.

Request a survey

Got Wet Rot? Call 0800 288 8660 to arrange a survey or