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About Sunny Coast Grouting
Grouting and sealing specialists on the Sunshine Coast
We do one narrow thing and we do it properly: the grout, silicone, and waterproofing that decide whether a wet area lasts. Most of our work is regrouting and resealing bathrooms that were tiled well but sealed carelessly, and repairing the leaks that follow.
Every job starts with an honest look at what is actually wrong. Sometimes that is a full regrout; often it is a few hours of resealing and a conversation about ventilation. We will tell you which, and quote for that rather than for the bigger job.
To take the jobs most trades treat as an afterthought and do them properly. Grouting and sealing is the difference between a bathroom that lasts twenty years and one that needs rebuilding in eight, and it deserves the same care as the tiling it protects.
We turn up when we say we will, quote what the job actually needs, and tell you plainly when the cheaper option is the right one.
Honest assessments first. If a reseal will fix it, we will not sell you a regrout. If the problem is behind the wall and outside what we do, we will say so and point you at the right trade.
Clean sites and finished edges. We work in people's homes, so we mask up, clean down, and leave the room usable. The work is judged on the detail at the corners, not the middle of the wall.
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Distinct Services
What we do
Regrouting
Grout has a harder life than the tiles it sits between. It soaks up water, holds onto soap and dirt, and slowly breaks down until it cracks or crumbles away from the tile edge. Once that happens, water gets underneath, and a cosmetic problem quietly turns into loose tiles and damp walls.
Regrouting means raking the old grout out of every joint, cleaning the surface back, and laying fresh grout across the whole area. Getting the old material out properly is most of the work, and it is the difference between a finish that lasts a decade and one that fails again inside a year.
Most bathroom floors and shower walls are a one-day job, and the room is back in use as soon as the grout has cured.
- Bathrooms, kitchens, laundries, and tiled floors
- Old grout removed rather than covered over
- Colour matched to the existing tile, or changed entirely
- Sealed on completion to slow future staining
Shower and Wet Area Resealing
The flexible bead of silicone where your shower screen meets the tiles, where the bath meets the wall, and around the vanity is a wear item, not a permanent fixture. It moves with the building, it is permanently damp, and after five to ten years it lifts, splits, or goes black with mould that no amount of scrubbing will shift.
Resealing means cutting out every trace of the old silicone, treating the mould underneath, and running a fresh bead of mould-resistant silicone or polyurethane. Removing the old material completely is the part that matters — new silicone will not bond over old residue, which is why patching over the top never holds.
It is the job we are called out for most, because failed silicone is usually where a shower starts leaking. Most resealing jobs take a few hours.
- Old silicone cut out and surfaces cleaned back
- Mould treated before the new bead goes on
- Mould-resistant silicone or polyurethane
- Showers, baths, vanities, and splashbacks
Waterproofing Membrane Repair and Installation
Under the tiles of every compliant wet area sits a waterproofing membrane: a continuous barrier that stops water reaching the structure of the house. Australian Standard AS 3740 sets out where it is required and how it has to be installed.
On new builds and renovations we apply the membrane before tiling starts, working in alongside your builder or tiler. On older homes the job usually runs the other way — finding where an existing membrane has failed and rebuilding that area properly, which normally means lifting tiles.
It is the most expensive problem in this trade to leave alone, because all the damage happens out of sight until it reaches a ceiling or a floor downstairs.
- Compliant with AS 3740 for wet areas
- New builds and renovations
- Leak investigation in existing bathrooms
- Repairs to failed membranes under tile
Colour Sealing
Colour sealing puts a tinted epoxy or acrylic coating over your existing grout lines. The grout stays exactly where it is; the seal bonds to its surface, evens out the colour, and closes the pores that let grout stain in the first place.
You can match the original colour so old grout reads as new, or change it entirely — dark grout lightened, or a dated beige swapped for a modern grey — without lifting a single tile. It is the fastest way to modernise tiling that is structurally fine but looks tired.
The grout underneath has to be sound. Where it is cracked or crumbling, regrouting comes first; sealing over damage only hides it.
- Hides staining and uneven colour
- Wide range of colours, including whites and greys
- Seals porous grout against future staining
- A fraction of the cost of retiling
New Tile Grouting
Grouting is the finishing stage of a tiling job, and it does more than fill the gaps. It sets how the whole surface reads — a colour close to the tile makes the field look continuous, a contrasting one turns the layout into a pattern — and it decides how the surface will hold up.
Cement-based grout suits most areas and most budgets. Epoxy grout is a different material entirely: non-porous, stain resistant, and far tougher against water, which is why it has become the default recommendation for kitchen splashbacks, showers, and anywhere with a hard life.
We are happy to work in alongside your tiler on a build or renovation, and to talk through the options before anything is mixed.
- Cement-based and epoxy grout
- Anti-fungal additives available
- Colour matched to the tile
- Works alongside your tiler
Mould and Mildew Treatment
Deep cleaning and treating grout and silicone affected by mould or mildew build-up, common in humid Queensland bathrooms.
- Treatment of grout and silicone
- Paired with resealing to stop it returning
- Anti-fungal additives on new work
- Advice on ventilation and drying