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How much does electro-osmosis cost? (2026 prices)
No damp-proofing company publishes its prices. We gathered the ranges we found — and we tell you where they come from.
Observed range
€35–60
per m², no opening-up works
An alternative to injections. Results take months. Ask for the guarantee in writing.
Source: customer reports, published quotes
Estimate for your area
€350–
Before you sign, ask
- What type of damp did you identify, and with what measurements?
- What exactly does the guarantee cover — and who honours it if the company closes?
- Does the price include re-plastering, painting and removing the rubble?