Why the kitchen gets its own finishing trade
Kitchen caulking is mostly about the joints people look at every day: the line where a stone benchtop meets the splashback, the edge of a cabinet against a wall, the rim of the sink. Done well, those lines disappear into the finish; done badly, they are what a client points to at handover.
Australian Caulking Experts seals kitchens for builders, designers and homeowners, usually as part of an internal caulking package that also covers the bathrooms and laundry. Most kitchen joints are only splashed occasionally, so appearance and adhesion to stone and joinery matter as much as water resistance.
Kitchen joints in our scope
- Benchtop to splashback, in tile, stone or a solid panel
- Benchtop ends and returns where they butt into walls
- Sinks set into or under the benchtop
- Cabinetry edges, end panels and fillers against walls and ceilings
- Natural stone junctions, such as an island waterfall end meeting the floor
- Kickboards, skirtings and floor junctions around the joinery
- Laundry benches and tubs
Colour matching against stone and joinery
A kitchen often combines several colours in one short run: a veined stone top, a painted or laminated cabinet and a tiled wall. Each junction needs a sealant colour that reads as part of the finish, matched to the actual materials rather than a chart.
On the luxury Mosman home for Toki Construction, the natural stone came in a wide variety of colours and the job called for extensive colour sampling before any joint was sealed. On natural stone the product must also suit the stone itself, not just its colour.
Kitchen caulking around the sink
The sink is the one part of a kitchen that behaves like a wet area. Water sits on the benchtop around it every day, so the joint there gets a mould-resistant silicone rather than a general-purpose filler. One sealant on our products page, Alseal AS-206, is a sanitary silicone that its maker lists for sinks and kitchen and bathroom fixtures, and describes as permanently flexible.
An undermount sink needs a bead that bridges the bowl and the stone so neatly that no food or water collects in it. See our guide to silicone sealant benefits.
When to book, and how kitchens are quoted
Kitchen caulking goes in once the benchtops are installed, the splashback is tiled and grouted, the sink is fitted and the cabinet doors are hung. Sealing before the appliances slide in gives clear access to the wall junctions behind them.
Builders can send architectural plans or takeoffs, or arrange a walk-through, and multi-unit packages are usually priced by the lineal metre. Homeowners can send photos of the existing joints for a first look. On apartment jobs such as Everose in Rose Bay, kitchens were done in one scope with the bathrooms, laundries and stone junctions. Wet areas are covered on our bathroom caulking page. Send the details through for a quote.
Frequently asked questions
Can you re-caulk an existing kitchen without removing the benchtop?
Yes. Re-caulking works on the joint, not the benchtop. The old sealant is cut out, the joint is cleaned back to the stone, tile or joinery, and a fresh bead is applied and tooled to a clean line. Discoloured, shrunken or lifting joints are typical reasons to redo a kitchen. Larger defect jobs go through our remedial caulking service.
Can a kitchen sealant joint be painted?
Silicone cannot be painted, so it is used where the joint stays as sealant, such as along the benchtop and splashback. Where joinery meets a wall or ceiling that will be painted, a paintable sealant is the right choice instead, and it goes on before the painter. Let us know which joints are being painted so the right product goes into each one.
Do you caulk wardrobes and other built-in joinery?
Yes. Wardrobes and other built-in joinery have the same kind of joints as kitchen cabinetry: end panels, fillers and edges meeting walls and ceilings. They are sealed in a colour that matches the joinery or the wall, so the line blends into the cabinet instead of standing out. On apartment projects, wardrobes are usually done on the same visit as the kitchens.