It depends on the linear metres of affected wall. We provide a fixed quote after a diagnostic visit, with no obligation. The treatment requires addressing the water source, not the internal symptom. If the roof is degraded, the entire waterproofing needs renewing with new roofing felt or a liquid-applied 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 ensuring external watertightness do we repair the internal wall. There are four types of damp we commonly see on the Costa Blanca, 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 technical diagnostic visit before quoting anything. The difference between treating damp correctly or incorrectly can change the durability of the result from five years to six months.

This is damp that forms when humid indoor air touches a cold surface. Typical in kitchens and bathrooms without adequate ventilation, also in rooms facing north-facing facades that get colder in winter. It manifests as water droplets on windows, cold corners of rooms, black mould stains in cold wall areas. This is damp that rises from the ground through walls due to the capillary action of porous materials. It manifests as a damp stain on the ground floor up to a metre high 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. The most common mistake with damp is repainting the affected wall. It works for the first month, and then the damp reappears, worse than before. Now the new paint creates a barrier trapping the water inside the wall. Damp is not cured by painting. It is cured by identifying the water source and cutting it off at its entry point. Only then do we repair the wall with the appropriate technique and repaint.

San Miguel de Salinas is an inland municipality fifteen kilometres from Torrevieja, in the Vega Baja region. It has about ten thousand inhabitants and a mixed profile between Spanish residents and foreign owners who sought to move away from saturated coastal developments. This intermediate position has a specific technical consequence. The local supply of professionals is limited; the self-employed workers here don't face as much competition as in Torrevieja or Orihuela Costa, and the average service quality is inconsistent. Some professionals are excellent – we know them. Others take advantage of the lack of alternatives to do quick jobs without guarantees. There isn't as much competition here as on the coast, and it shows in the quality of some professionals. We work in San Miguel to the same standards as in Torrevieja. No, we choose the product compatible with each material (gres, marble, microcement, parquet) after a prior assessment. This is precisely what prevents scratching or dulling new surfaces.

The price for rendering and plastering in Arenys de Mar typically ranges between €160 and €3400. The final figure depends on the property's condition, materials, and working time. We always provide a fixed quote before starting. The result is a house ready to move into or to hand over to a tenant or buyer, with no dust reappearing after two days or residue on windows and taps. We provide a free preliminary assessment to give you a fixed price based on square metres and condition. Building work leaves more mess than simple painting. All work comes with a 30-day guarantee. Call us, message us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.