Sinking concrete slab — Barcelona, Catalonia
A concrete slab that has sunk or settled unevenly creates trip hazards, pools water against the foundation, and worsens as the void beneath the slab grows. Causes include soil erosion from poor drainage, tree-root decay leaving voids, or inadequate compaction during the original pour. A concrete mason can lift the slab back to grade using polyurethane foam injection or mudjacking, fill the void, and level the joints so the surface is flush, safe, and drains correctly.
Who to call
For this problem in Barcelona, call a: Betonwerker
Vind een Betonwerker in BarcelonaSymptoms to look for
- Uneven or sunken sections visible on the driveway or patio surface
- Tripping hazard at the joints where one slab sits lower than the next
- Water pooling on one side of the slab instead of draining away
- A growing gap between the slab edge and the house foundation
Spoeddienst in Barcelona
Emergency services in Barcelona respond within 30–75 minutes in the central districts (faster in l'Eixample and Gràcia, slower in the upper hillside neighbourhoods). Callout rates run €60–€150 plus €45–€80/hour including IVA — among the highest in Spain alongside Madrid. Confirm the contractor is a registered instal·lador autoritzat with the Generalitat before granting entry, especially for heritage-building work.