Why is Rising Damp in Zwalm Such a Problem?
In older homes in Zwalm, built without modern damp-proofing, ground moisture easily penetrates upward through porous walls. This happens because building materials like brick absorb moisture and allow it to rise, which often becomes visible as white salt deposits (saltpeter) on the wall.
The moist subsoil in our region – especially in autumn and winter – significantly increases this risk.
Recognize the Signs of Rising Damp Quickly
You can recognize rising damp by:
- Moisture stains at the bottom of interior walls, usually up to ±1 m height, with a sharp boundary line
- White salt deposits such as saltpeter
- Peeling paint or plasterwork and loose wallpaper
- A musty odor or mold formation


What if You Do Nothing about Rising Damp?
The Risks of Delaying Moisture Control
When rising damp is not addressed quickly, it causes among other things:
- Structural damage: porous walls, potentially crumbling stones, deterioration of plasterwork and insulation
- Health problems: mold formation, allergies and respiratory conditions
- Reduction in property value due to an unattractive moisture problem
How Solusio Helps with Rising Damp in Zwalm
1. Free Moisture Diagnosis On-Site
We start with a thorough inspection: moisture scan, salt-containing deposits, damp-proof course and basement check.
2. Why Injection is Often the Simplest Solution
Wall injection is the most efficient and budget-friendly treatment. We drill strategic holes in the wall and apply a moisture-repelling agent that, after curing, prevents capillary moisture rise.
3. Is the Damage more Serious? Then Possible Extensions may Follow Such as:
- Basement treatment: basement waterproofing or tanking to keep ground moisture out
- Comprehensive waterproofing: reconstruction or installation of durable moisture barriers if necessary
4. Aftercare Guarantee
We guarantee sustainable solutions.

Frequently Asked Questions about Moisture Control
How much Does Moisture Control Cost?
It’s not easy to put an exact price on moisture control. The price is determined by many factors. Each situation is different and therefore has a different price. The main price determinant is the type of treatment. The extent of the problem also plays an important role. Below, we give you some indicative prices so you have an idea of the cost of moisture control.
Type of treatment | Price indication |
---|---|
Ventilation system | from € 1,500 to € 6,000 |
Wall injection against rising damp | from € 120 – € 150 per m² |
Facade impregnation | from € 10 – € 35 per m² |
New facade cladding | from € 50 – € 300 per m² |
Basement waterproofing | from € 4,000 – € 10,000 |
Are there Subsidies for Moisture Control?
You can soften the prices of moisture treatments by applying for a subsidy. Controlling moisture problems is considered a renovation project. Therefore, you can apply for a renovation subsidy.
Previously, this was the Flemish renovation subsidy and an energy subsidy from Fluvius, but from October 1, 2022, these subsidies were merged into the My Renovation Subsidy. You can get up to 50% of the cost back as a subsidy.
