Silicone seals in wet areas like showers, bathtubs, and kitchen countertops have a real lifespan of 4 to 7 years in the best-case scenario. After that, the first signs appear. Discolouration to yellow or grey, small cracks in the silicone bead, separation between the silicone and the wall or sanitary fixture. Black mould spots also appear that normal cleaning won't remove, or water leaks through when someone showers. First, the old silicone must be completely removed. New silicone cannot be applied over the old, it won't adhere and will peel off within weeks. Removal is done with a special utility knife, a scraper, and in difficult cases, with a specific chemical softening agent that dissolves the old silicone without damaging the tile. Silicone is applied with a caulking gun in a continuous, uninterrupted motion. Stopping and restarting creates visible irregularities. Immediately after application, it's smoothed with a silicone finishing tool or a finger dipped in soapy water to create the characteristic uniform concave finish. Masking tape is removed before the silicone begins to cure, within the first 5 minutes.

We identify the real cause (dampness, settling, worn hardware) before acting. In winter, when humidity drops and the dry westerly wind blows, wood contracts. The door closes well but there's visible play between the door and the frame, allowing air and noise to pass through. This is the natural cycle of wood and can only be avoided by two things: either replacing it with a moisture-resistant (DM) or multi-laminated door that doesn't move, or learning to live with it and adjusting the hinges occasionally. This is a very specific pattern in the area. Interior solid wood doors, especially those in blocks of flats from the 80s-90s, swell and contract with seasonal humidity changes. In summer, when humidity and temperature are high, the wood absorbs moisture from the air and expands. The door then stops closing properly, catching on the top or side of the frame, and forcing it only worsens the hinge.

For more modern windows with tilt-and-turn profiles and thermal breaks, the hardware is of better quality but also requires maintenance. Lubricating hinges and adjusting locking points every 2-3 years considerably extends their lifespan and prevents air from entering in winter or making them too stiff to open. A minimum of 24 hours for full curing. Quality neutral silicone is touch-dry in 30 minutes, but full internal curing takes 24 hours to be watertight. We assemble wardrobes, shelves, beds, desks, and kitchen furniture according to the manufacturer's instructions. We level them, anchor them to the wall when necessary, and remove packaging upon completion.

The price for silicone and sealants in Sentmenat typically ranges between €28 and €216 as a guideline. The final amount depends on the property's condition, materials, and labour time, and we always finalise it after seeing photos or —if you prefer— after an on-site assessment, with no obligation. If it becomes misaligned again within 30 days due to the same cause, we'll return at no extra cost. Call us, text us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.