READING TIME
How Long Does Silicone Sealant Last?
Most professionally applied silicone sealant can last many years, but its lifespan depends on the environment, usage, ventilation, and quality of installation.
Bathrooms, kitchens, and external joints are exposed to constant moisture, movement, temperature changes, and cleaning chemicals, all of which gradually wear sealant down over time.
Signs Sealant Is Starting to Fail
Common signs include:
- mould growth
- cracking
- peeling edges
- discolouration
- gaps forming in joints
- water leaks
These are often early indicators that sealant may no longer be providing effective waterproof protection.
What Causes Sealant to Deteriorate?
Sealant naturally ages, but several factors can shorten its lifespan:
- poor ventilation
- excessive moisture
- movement in surfaces
- harsh cleaning chemicals
- low-quality materials
- poor previous installation
Professionally applied sealant using quality materials generally performs far better over time.
Should Old Sealant Be Repaired or Replaced?
In most cases, failed silicone should be fully removed and replaced rather than patched over. Applying fresh silicone on top of old deteriorating sealant usually leads to poor adhesion and shorter lifespan.
Professional Sealant Replacement
ROSEAL provides professional silicone replacement for bathrooms, kitchens, commercial properties, windows, and external joints across the South West.
