Rising damp, roof leaks, internal condensation, and salt efflorescence. Diagnosis before action. Chemical injection, external waterproofing, breathable coating, or ventilation depending on the diagnosis. The treatment requires addressing the source of the water, not the internal symptom. If the roof is degraded, the entire waterproofing must be renewed with new roofing felt or a sprayed liquid polyurethane system. If the facade has structural cracks, they are sealed with elastic sealant and repainted with specific facade paint that covers micro-cracks. Only after guaranteeing external watertightness do we repair the internal wall.

The most common mistake with damp is repainting the affected wall. It works for the first month, then the damp reappears, worse than before. The new paint creates a barrier that traps water inside the wall. Damp is not cured by painting. It is cured by identifying the source of the water and stopping it at its entry point. Only then do we repair the wall with the appropriate technique and repaint. There are four types of damp we commonly see in La Bordeta, each with a different cause, diagnosis, and treatment. Confusing them inevitably leads to ineffective treatments and wasted money. That's why we always start with a diagnostic technical visit before quoting anything. The difference between treating damp correctly or incorrectly changes the durability of the result between five years and six months. This is damp that rises from the ground through walls via the capillary action of porous materials. It manifests as a damp patch on the ground floor up to a height of one metre from the floor, often with white efflorescence (salts that crystallise as the water evaporates). It is typical in old ground-floor properties, especially in areas with a high water table near the sea.

Running a new cable through a forty-centimetre-thick old masonry wall is not the same as running it through a plasterboard partition. Here, technicians must know the city and bring the right materials, long drills, SDS-MAX bits, heavy-duty rotary hammers, because without them, an installation that would take a morning in another city can turn into two days if you lack the correct tools. No, we select the product compatible with each material (stoneware, marble, microcement, parquet) after prior assessment. This is precisely what prevents scratching or dulling new surfaces. Removal of damaged coating, neutralisation of salts, and application of a compatible paint system.

The price for waterproofing in La Bordeta typically ranges between €170 and €5000. The final amount depends on the property's condition, materials, and work time. We always provide a fixed quote before starting. It depends on the linear metres of affected wall. We provide a fixed quote after a diagnostic visit, with no obligation. Call us, message us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.