# Removing poria fungus in Flanders &amp; Brussels: complete guide and professional solution

If you notice white, fluffy fungal patches or cracked, cubed wood in your home, there is a high chance you are dealing with poria fungus. This wood-damaging fungus can spread rapidly, weaken timber structures, and cause serious damage to floors, supporting beams, ceilings, and basements. In Flanders and Brussels, poria fungus is increasingly found in older homes, poorly ventilated spaces, and buildings with moisture problems.

On this page, you will discover **everything** you need to know about removing poria fungus, including:

- how to identify poria fungus
- why swift action is crucial
- how severe the damage can become
- the exact steps of a professional treatment
- mistakes you should never make yourself
- how long an inspection takes
- average treatment costs
- the regions where we operate

Let’s start from the beginning.

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 | ![protector porienzwam](https://protector.be/images/content/protector-porienzwam-poria.jpg "protector porienzwam") | ## What is pore fungus? (Poria)  Pore fungus is a wood-damaging fungus that mainly occurs in damp or [poorly ventilated spaces](https://protector.be/index.php?Itemid=789&lang=en). The fungus feeds on cellulose, an essential component of wood. This weakens the wood structurally, causing it to crack into cubes (brown rot) and eventually crumble.  ### Why is pore fungus so common in Flanders and Brussels?  - Many older homes with wooden floors and beams - Cellars and partition walls susceptible to moisture - Damp areas due to leaks, condensation, or rising damp - Renovations where old wooden structures remain - Apartments with poorly functioning ventilation   Pore fungus **never disappears on its own**. As long as the environment contains enough cellulose and moisture, it continues to grow and damage new structures. |

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## How to recognise pore fungus?

Correct recognition is crucial for prompt intervention. Below is a detailed checklist based on dozens of inspections in Flanders and Brussels.

 | ### Appearance  - White or pale yellow flakes resembling cauliflower or cotton - Flat, thin fruiting bodies with small pores underneath - Dry, flexible white fungal threads (rhizomorphs) - Mycelium spreading along wood, walls, and crevices - Brittle or fibrous wood   ### What does affected wood look like?  - Wood turns brown or dark - Cracks into small cubes (a sign of brown rot) - It loses its load-bearing capacity - It crumbles when squeezed | ### Odour  - Musty, cellar-like smell - Sometimes a faint mushroom or mouldy smell   ### Common places in the home  - Old floorboards - Wooden support beams - Cellars - Attics - Behind plasterboard or wooden panels - Storage rooms - Partition walls in terraced houses |

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When you see these signs, prompt diagnosis is necessary. The longer you wait, the greater the damage, sometimes irreversible.

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 | ## How dangerous is pore fungus?  Pore fungus is not merely an aesthetic problem. It is one of the most aggressive wood-damaging fungi in our region.  ### Structural damage  By breaking down cellulose, wood loses strength. Consequences can include:  - Weakened floors - Unstable ceilings - Cracks in load-bearing structures - Risk of sagging or collapse   In apartments, pore fungus can even spread to neighbouring units if conditions are favourable.  ### Health risks  Although pore fungus is not toxic like some black moulds, spores can cause:  - Respiratory irritation - Allergic reactions - Aggravation of asthma   Children, the elderly, and allergy sufferers are more sensitive. |

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 | ## Causes of pore fungus  Pore fungus never develops randomly. There is always an underlying cause.  ### Moisture (most common cause)  The fungus develops at wood moisture contents above 20–25%. Typical triggers include:  - Leaking pipes - Water infiltration through roofs or gutters - [Rising damp](https://protector.be/index.php?Itemid=790&lang=en) - [Condensation problems](https://protector.be/index.php?Itemid=792&lang=en) - Poor ventilation   ### Temperature &amp; light  - Grows from 10°C - Thrives optimally between 20–26°C - Prefers dark spaces   ### Wood types most frequently affected  - Softwood - Beams of old roof structures - Wooden floors in older homes - Wooden interior joinery | ![protector porienzwam oorzaken](https://protector.be/images/content/protector-porienzwam-oorzaken-oplossingen.jpg "protector porienzwam oorzaken") |

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 | ## Why pore fungus removal is never a DIY project  Pore fungus actively spreads through spores and fungal threads that penetrate deep into materials. Attempting DIY removal almost always leads to:  - Spread of spores - Incomplete treatment - Persistent odours - Regrowth after weeks or months - More severe damage (higher costs)   Professionals have:  - Proper measurement equipment - Industrial cleaning techniques - Professional anti-fungal products - Knowledge of structural damage - Experience in occupied homes |

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## Professional pore fungus removal: our full approach

A professional treatment ensures the fungus is **completely and permanently** removed.
Here is the full Protector process.

### 1. Inspection &amp; diagnosis

Our expert analyses:

- The type of fungus
- The extent of the infestation
- Which structures are affected
- Where the infestation started
- Whether structural damage is present
- Which materials need replacement

Duration of inspection: typically 60–90 minutes (depending on accessibility)

During the inspection we carry out:

- Visual analysis
- Wood moisture measurement
- Leak checks
- Ventilation inspection
- Analysis of adjacent structures

### 2. Cause identification &amp; repair

Before treatment, the core problem must be addressed:

- Leak detection and repair
- Gutter or pipe repair
- Treat rising damp if necessary
- Improved ventilation solutions

### 3. Removal of affected wood

All infected or structurally unstable materials are removed:

- Wooden beams
- Floorboards
- Door and wall cladding
- Hidden structures behind plasterboard or skirting

Hidden zones are also exposed if needed.

### 4. Deep cleaning &amp; disinfection

This is one of the most important steps to prevent regrowth.
We clean:

- Walls
- Floors
- [Beam heads](https://protector.be/index.php?Itemid=795&lang=en)
- Cavities
- Cracks and joints

We use professional disinfection methods not available commercially.

### 5. Application of anti-fungal product

All surfaces are treated with an industrial pore fungus killer:

- Deep-penetrating
- Long-lasting effect
- Protection against reinfestation

Applied only by a certified expert.

### 6. Replacement of affected wood

Affected parts are replaced with:

- Treated wood
- Moisture-resistant material

### 7. Restoration of finishes

Protector takes care of:

- Plasterwork
- Wall finishes
- Floor or ceiling repair
- Dust-minimised work
- Minimal disruption in occupied spaces

### 8. Aftercare &amp; guarantee

After treatment, you receive clear instructions on:

- Prevention
- Ventilation
- Follow-up

You also receive a written report + treatment guarantee.

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## How much does pore fungus removal cost? (Indicative prices)

Since every situation is unique, indicative prices are difficult to provide.

Factors influencing the price:

- Surface area
- Depth of infestation
- Need for structural repairs
- Accessibility
- Required ventilation or moisture treatment

Exact prices are provided after a **free inspection**.

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 | ![protector pore fungus prevention tips](https://protector.be/images/content/protector-porienzwam-bestrijden-preventietips.jpg "protector pore fungus prevention tips") | ## Prevention tips to avoid pore fungus  - Ensure mechanical ventilation - Check pipes for leaks - Treat rising damp promptly - Avoid prolonged damp conditions - Use moisture meters in problem areas - Have wooden structures inspected annually |

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 | ## Protector operates throughout Belgium   \| - Antwerp       Tel.: [0475 96 97 97](tel:+32475969797) - Limburg       Tel.: [0475 96 97 97](tel:+32475969797) - East Flanders       Tel.: [0475 96 97 97](tel:+32475969797) - West Flanders       Tel.: [0475 96 97 97](tel:+32475969797) - Flemish Brabant       Tel.: [0475 96 97 97](tel:+32475969797) \| - Brussels       Tel.: [02 526 07 70](tel:+3225260770) - Walloon Brabant       Tel.: [0477 76 75 55](tel:+32477767555) - Namur       Tel.: [0477 76 75 55](tel:+32477767555) - Hainaut       Tel.: [0477 76 75 55](tel:+32477767555) - Luxembourg       Tel.: [02 526 07 70](tel:+3225260770) \| ![protector kantoren](https://protector.be/images/protector-kantoren-kaart-fr.png) \| \|---\|---\|---\| |

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 | ## Why choose Protector?  - 40 years of experience - Specialised in wood damage &amp; fungi - Active in all Flemish provinces - Minimal disruption, dust-minimised work - Complete solution (inspection and repair) - Guarantee on the treatment - Member of the Confederation of Construction &amp; WTCB |

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 | ## Schedule your inspection  **Unsure if you have pore fungus? Don’t let it spread.** Request a professional diagnosis today.  [Ask us a question](mailto:info@protector.be?subject=I%20would%20like%20to%20receive%20some%20more%20information%20about%20Protector)  [Get a free quote](https://protector.be/index.php?Itemid=801&lang=en)  [ Call us for free 0800 30 163 ](tel:080030163) |

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## Answers to the most frequently asked questions about pore fungus removal

 ### How can I be sure I have pore fungus?

Pore fungus is noticeable by white to pale yellow flakes resembling cauliflower or cotton. The surrounding wood turns brown, becomes brittle, and cracks into small cube-shaped pieces – a typical sign of brown rot. Additionally, mycelium often grows through joints, gaps, and behind finishes, meaning the fungus affects a larger area than what is visible. Because pore fungus closely resembles other wood fungi, such as house fungus or cellar fungus, professional identification is essential. During an inspection, our experts analyse wood moisture, mycelium structure, and fungal spread. This ensures you know exactly which type of fungus is present and what treatment is required. A full diagnosis typically takes **60–90 minutes**.

  ### How long does it take to remove pore fungus?

The duration of a pore fungus treatment depends on the size and depth of the infestation. Smaller infestations can usually be treated in one working day, while deeper or widespread infestations may take several days. A complete treatment includes inspection, cause identification, removal of infected wood, deep cleaning, disinfection, and structural repair. In homes in Flanders and Brussels, a standard treatment usually takes 1 to 3 working days. During the inspection, you will receive a clear estimate so you know exactly what to expect.

  ### Can pore fungus return after treatment?

Pore fungus can only return if the underlying cause, usually moisture issues, is not fully resolved. Therefore, a professional treatment always involves two parts: removing the fungus itself and addressing the source. Our approach combines deep cleaning, structural inspection, cause remediation, and the use of professional long-lasting anti-fungal products. When all steps are carefully followed, the risk of reinfestation is minimal. You also receive a **guarantee on the treatment** for lasting peace of mind.

  ### What happens to affected wood during the work?

Affected wood is completely removed to prevent leftover spores from causing new growth. All affected areas are exposed until healthy wood is reached. This sometimes requires temporary removal of floors, walls, or finishes. All surfaces are then thoroughly cleaned, and a deep-acting anti-fungal product is applied. Finally, the affected wood is replaced with treated, moisture-resistant material, and plasterwork, flooring, or finishes are restored to a neat finish.

  ### How much disruption can I expect during treatment?

We deliberately work dust-minimised and in a controlled environment so your home remains habitable. We use extraction, protective sheeting, and professional protective materials to minimise dust, odour, and noise. Most rooms remain accessible, though some areas may be temporarily restricted. We always communicate this in advance so you know exactly what to expect. Our goal: **efficient treatment with minimal disruption**.

  ### How much does a professional treatment cost?

The cost depends on the size of the affected area, the depth of the infestation, necessary structural repairs, and accessibility. Smaller infestations are quicker and cheaper to treat, while larger or deeper infestations require more time and materials. Because every situation is unique, we always perform a **free inspection** first. This provides a clear, transparent, and precise quote tailored to your property.

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 |  | ## What Our Customers Say  "Thank you for your care and flexibility. It feels good to talk with people who fully understand our situation and take into account the impact of major works in our living environment. We are already a long way along: the parquet floor is back in place and the kitchen unit is restored. Still much work ahead, but we already have our living room back! In the meantime, the arrangement with the insurance company has also been settled. If we get the chance to recommend your services somewhere, we will certainly do so!"  Anton |

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