Cost: façade water-repellent treatment
Cost depends on the substrate and approved scope: assessment, trials, preparation, repairs, application and access. Compare these separately. Product cost per area is not the completed and checked treatment price.
Editorial update on 18 September 2026
Define services before unit price
Separate visit, assessment, trial, cleaning, repairs and application. Identify treated and excluded areas. Impregnation alone is not complete preparation.
Specify product and conditions
Record reference, application method and checks. Ask how consumption will be assessed through trials rather than assigning one quantity to every stone, brick and finish.
Add access and exclusions
Check adjacent-surface protection, access, scaffolding and residue management. Define defects requiring treatment changes or suspension. Do not assume fixed renewal or quantified upkeep savings.
The three budget levels
Where your money goes
- AssessmentOn quotationWater source and suitability.
- PreparationOn quotationDefined cleaning and repairs.
- ApplicationOn quotationProduct and approved areas.
- ChecksOn quotationTrials, result and access.
What makes the price vary
Substrate
Absorption and existing layers.
Condition
Joints, defects and salts.
Area
Accessible selected zones.
Project
Future work compatibility.
Indicative scenarios
No grant is deducted from the budget shown here. If a quote mentions support, request the exact scheme and confirmation of your eligibility before including it in financing.
Frequently asked questions
Does it suit every damp façade?
No. Assess moisture source and contraindications.
Is colourless always invisible?
Approve appearance on a representative dry trial.
Does it repair cracks?
It does not replace repair based on assessment.
Must it be renewed every five years?
There is no universal interval. Request product- and substrate-specific upkeep.
Can painted walls be treated?
Only after compatibility checks for product and existing layers.
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