Removal and replacement of failed, mouldy or shrunken silicone. Full strip, proper prep, single clean bead application.
Silicone in itself is a remarkably durable material. It tolerates UV, temperature swings from minus forty to plus one hundred and fifty, constant moisture, and chemical exposure to most domestic cleaners. When silicone fails inside a year or two, the silicone is almost never the problem. The application is. Either the substrate was not properly prepped, the wrong product was used for the location, or new silicone was laid over old residue.
Remedial caulking is the specialty of stripping back a joint that has failed and rebuilding it correctly. That means physically removing every trace of the old sealant, not scraping, not skimming, but a full strip back to bare substrate. Then treating any mould or staining that grew behind the failed bead. Then masking, priming if needed, and laying a fresh single bead. Done this way, the new joint should last 5 to 7 years in a wet area.
Seliecone handles remedial caulking across Sydney residential, strata and commercial sites. Common scopes include single-bathroom resealing for homeowners, unit-by-unit programs for strata managers, kitchen splashback resealing, and external joint remediation on commercial buildings. We can usually identify why the previous job failed and tell you whether the same product type will work this time, or whether a different system is needed.
Every job covers the following as standard. Anything outside this list is quoted separately and confirmed before work starts.
Full removal of failed silicone
Mould and staining treatment behind the bead
Substrate inspected for underlying damage
Joint geometry assessed, backing rod added if needed
Correct product type for the substrate
Mould-resistant in all wet areas
Single uniform bead, no patching
Surfaces left clean on completion
For wet-area remedial work, Soudal and Maxisil mould-resistant silicones as the default. For natural stone or engineered stone joints, a neutral-cure silicone to prevent etching. For external remedial work, Soudal polyurethane. Mould treatment product applied to substrate where surface mould has grown behind a failed joint.
Areas we serve: We provide this service across all Sydney regions, including Sydney CBD, Eastern Suburbs, Inner West, North Shore, Northern Beaches, Western Sydney, Sutherland Shire and the Hills District. See all service areas.
Almost always one of three reasons. New silicone applied over old residue (will not bond). Wrong product type for the substrate (acid-cure on stone, non-mould-resistant in wet areas). Or joint geometry was wrong, the bead was forced into a three-sided bond that tears as soon as the joint moves.
Yes, and this is the single most important step. We use silicone removers, blades and pull-out techniques to strip every trace from the substrate. Any residue left behind will prevent the new bead from bonding properly.
Yes. Once the old silicone is stripped, we treat any visible mould on the substrate before re-applying. Mould-resistant silicone will then prevent regrowth from inside the new bead.
Most single-bathroom remedial resealing is a half-day job. Larger jobs, multiple wet areas or strata unit-by-unit programs are quoted by scope.
Yes. We carry standard colours (white, translucent, grey, black, beige) and can colour-match to grout or stone for premium jobs. Worth flagging at quote stage.
In most cases, full resealing is better value. If one joint has failed because of an application problem, others in the same room are usually approaching the same failure. Stripping and resealing the lot in one visit avoids paying twice.
Tell us about the job, we come back with a written quote the same day, usually within an hour.
For trade enquiries, large jobs or anything time-sensitive, call straight through. Mon to Sat, 7am to 5pm.
Drop your details below and we’ll be in touch the same day with a written quote. Or upload photos through the full contact page.
Get a quote, usually back to you the same day.
