FAQ: Tile Restoration, Reinstallation & Related Terms What is Tile Restoration? Tile restoration is the process of bringing existing tiled surfaces back to their best possible condition without removing or replacing them. This may include deep cleaning, stain removal, mould treatment, regrouting, grout colouring, crack repairs, polishing, or sealing. The goal is to restore both appearance and functionality while extending the lifespan of the tiled area. What is Tile Reinstallation? Tile reinstallation involves removing damaged, loose, or poorly installed tiles and reinstalling them correctly. This process may require removing old adhesive, preparing the substrate, replacing sections of screed if needed, reinstalling tiles, and ensuring the area is waterproofed before finishing with fresh grout and sealant. Reinstallation is required when the tiles are beyond repair or when there are underlying structural or moisture problems. What is Waterproofing? Waterproofing is the protective barrier installed beneath tiles—usually a membrane—that prevents water from penetrating into the underlying structure. Proper waterproofing is essential in wet areas like showers, bathrooms, balconies, and laundries. If waterproofing fails, it can cause leaks, mould, rotting timbers, damaged plaster, and movement in tiles. Waterproofing must comply with Australian Standards and is one of the most important steps in any wet-area installation. What is a Screed? A screed is the sand-and-cement layer applied beneath floor tiles to create a strong, level surface. It provides the correct fall (slope) to drains and supports the tiles above. If screed becomes water-damaged, loose, or uneven, tiles may move, lift, crack, or allow water to pool. In some cases, part or all of the screed must be repaired or replaced before tiles can be reinstalled correctly. Why Can’t You Just Regrout if There’s a Leak? Regrouting only affects the surface layer and does not fix broken waterproofing or hidden moisture problems. If water is entering behind tiles due to a leak, damaged membrane, or deteriorated screed, regrouting alone will fail again. A leak detection test helps identify the true cause so that repairs are based on accurate information. Why Is Leak Detection Important Before Restoration or Repairs? Leak detection identifies the source of moisture issues, whether it’s plumbing, membrane failure, cracked screed, or structural movement. Without diagnosing the underlying cause, any surface repair is temporary. Leak detection ensures that work is effective, long-lasting, and compliant. Do All Restorations Require Reinstallation? No. Many issues—such as discoloured grout, minor cracks, mould, or dull tiles—can be corrected with restoration services. Reinstallation is only required when there are structural issues, leaks, loose tiles, or failed waterproofing. How Do I Know What Service I Need? If the problem is cosmetic (dirty grout, worn sealant, minor staining) restoration is usually enough. If the problem involves moisture, smells, leaks, loose tiles, bubbling paint, or recurring mould, reinstallation or waterproofing repairs may be required. A professional inspection or leak test can determine the correct solution.