Silicone Replacement
Bathrooms & Kitchens: Removing mouldy, peeling silicone and applying sanitary-grade sealant with crisp, clean lines.
Pools & Outdoor Areas: Sealing pool coping and pavers to prevent water damage and stop ants/weeds from lifting your tiles.
Expansion Joints: Replacing perished sealant in brickwork expansion joints and exterior perimeter seals to keep your home watertight during storm season.
Silicone Replacement
Failed or mouldy silicone is one of the most common causes of shower leaks. Over time, silicone sealant can crack, shrink, or lose adhesion, allowing water to seep behind tiles and into wall cavities.
Our silicone replacement service ensures your shower is properly sealed and protected.
We carefully remove old, deteriorated silicone and replace it with premium, mould-resistant sealants designed for wet areas. This creates a clean, flexible, and waterproof seal around shower screens, joints, and fixtures.
Fresh silicone not only improves the appearance of your bathroom but also plays a critical role in preventing water damage. Our professional application ensures long-lasting results and peace of mind, keeping your shower leak-free and hygienic.
Why Sealing Is Important
Sealing provides a protective barrier that is especially important in wet and high-exposure areas like bathrooms, showers, balconies, kitchens, and pool surrounds.
Reduces water absorption
Helps prevent mould and mildew growth
Minimises staining from soaps, oils, and minerals
Protects grout from crumbling and erosion
Extends the life of tiles, grout, and stone
Makes cleaning easier and more effective
Types of Sealers We Use
We assess each surface to ensure the most suitable sealer is used for maximum performance and longevity.
Penetrating (Impregnating) Sealers
These sealers soak deep into the grout or stone without changing the surface appearance. They:
Maintain the natural look and finish
Allow the surface to breathe
Provide long-lasting internal protection
Are ideal for bathrooms, showers, and outdoor areas
Surface (Topical) Sealers
These sealers form a protective layer on the surface. They:
Can enhance colour or sheen
Provide a visible barrier
Are typically used where a decorative finish is desired
Real Results, Real Local Homes.
Our Latest Work
FAQs About Leaking Shower Repairs & Tile Regrouting
Do I need to rip up my tiles to fix a leaking shower?
The majority of shower leaks are caused by failing grout or silicone, not the plumbing or tiles themselves. We use a specialised system to remove the old, compromised sealant and replace it with a high-grade waterproof epoxy and sanitary silicone. This repairs the leak and creates a watertight seal without the noise, mess, or heavy cost of a full bathroom renovation, making it ideal for homeowners wanting a quick and cost effective solution.
Who will actually be doing the work at my home?
When you book Coastal Seal & Grout, you get Nigel, the owner. We are a sole-trader business, not a franchise. Nigel personally handles every job—from the initial quote and inspection right through to the final clean-up. This ensures consistent quality, clear communication, and a tradesman who treats your home as if it were his own.
What products do you use, and is the work guaranteed?
We only use premium, commercial-grade materials designed to withstand the humid Sunshine Coast climate. This includes stain-resistant epoxy grouts (far more durable than standard cement grout) and high-quality sanitary silicones. All completed shower seals and bathroom jobs come with a 7-year workmanship warranty, giving you complete peace of mind.
What Other repair services do you offer?
We specialise in leaking shower repairs, tile regrouting & cleaning, silicone replacement, and repairs to bathrooms, balconies, pools, and outdoor tiled areas.
How much do shower, tile, and grout repairs cost?
The cost of leaking shower repairs, tile regrouting & cleaning, silicone replacement, and pool or outdoor tile repairs in the Sunshine Coast depends on several factors:
Size of the area – larger showers, bathrooms, or outdoor areas require more materials and time.
Extent of the damage – cracked grout, worn silicone, or leaking showers vary in complexity.
Type of service – whether it’s a full shower reseal, grout regrouting, silicone replacement, or pool tile repair.
We provide upfront, transparent pricing after an inspection. This ensures you know the full cost before any work begins, and we can recommend the most cost-effective solution for your home or property.
Do you repair pools and outdoor tiled areas?
We service pool surrounds, patios, balconies, and other outdoor tiled areas with tile regrouting, silicone replacement, and leak prevention.
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