Updated July 2026

NHK Tiling is a licensed tiling contractor serving Wahroonga, which at roughly 15 kilometres is the closest Upper North Shore suburb to the NHK Tiling base in Kellyville. Wahroonga holds some of the oldest housing stock on the Upper North Shore, and older homes bring tiling questions that newer suburbs do not. NHK Tiling is a family owned business trading since 1995 under NSW contractor licence 316043C, insured to $20 million.

What does tiling an older Wahroonga home involve?

Tiling an older Wahroonga home starts with the substrate, because period houses were not built to current wet-area standards. Three things get assessed before any tile is ordered.

The floor structure. Federation and interwar homes sit on bearers and joists instead of a concrete slab. Timber moves, tiles do not, so the floor is stiffened and sheeted before tiling. Australian Standard AS 3958 sets how far a floor may deflect before tiles and grout begin to fail.

Square and level. Older homes settle. Walls are rarely square and floors are rarely flat, which affects setout and the size of tile that can be used sensibly. NHK Tiling has handled out-of-square substrates before, including a brick BBQ splashback where the brickwork was not true and the finished tiling still came up flush.

What is already there. Existing tile can sometimes be tiled over where the surface is sound, level and free of movement, which saves demolition and cost. It is not suitable where tiles are loose, uneven, or hiding moisture damage, and that judgement is made on site rather than from a photograph.

What products does NHK Tiling use?

NHK Tiling works with Mapei, Davco, Laticrete and Ardex adhesives, grouts and waterproofing systems. These are the systems used on Wahroonga jobs, and the choice matters most in wet areas and over timber substrates, where adhesive flexibility and membrane compatibility determine whether a floor lasts.

Colour grouting and epoxy grouting are both available. Epoxy grout forms a dense, non-porous seal that resists staining, mould and discolouration, which suits bathrooms and any surface facing heavy cleaning. It costs more and takes skill to apply, and the return is durability.

Large format is available up to porcelain slabs of 3600mm, though large tiles need a flatter substrate, which in an older Wahroonga home usually means more preparation.

What tiling services does NHK Tiling provide in Wahroonga?

Do Ku-ring-gai heritage rules affect tiling in Wahroonga?

Ku-ring-gai heritage rules affect a Wahroonga tiling job only in specific circumstances. Retiling a bathroom or an internal floor does not change the external appearance of a building, so it is generally exempt development and needs no development application.

The distinction that matters is between a property individually listed as a heritage item and one that simply sits inside a heritage conservation area. A listed item can require council approval even for internal work. A property in a conservation area is not automatically affected. Wahroonga contains many of both, so checking the Ku-ring-gai property map before booking a trade is worth a few minutes.

External work such as a verandah or front porch is more likely to attract attention in a conservation area, since it is visible from the street.

Tiling in nearby Upper North Shore suburbs

NHK Tiling also tiles in Turramurra, Pymble and Gordon. See the full Upper North Shore tiling service area.

Common Questions About Tiling Services Wahroonga

Can you tile over the existing tiles in my Wahroonga bathroom?
Sometimes. It works where the existing surface is solid, level and free of cracks or hollow sounds, and it saves demolition time and cost. It is not suitable where tiles are loose or uneven, or where they are concealing moisture damage. The call is made on site, not from a photograph.
Do I need council approval to retile a bathroom in a heritage area?
Generally no. Internal retiling is normally exempt development even inside a heritage conservation area. The exception is a property individually listed as a heritage item, where internal work can require Ku-ring-gai Council approval. Those are two different things and are worth checking on the council property map.
My 1920s Wahroonga house has uneven floors. Is that a problem for large tiles?
It is a factor. Large format tiles need a flatter substrate, so an uneven floor needs more preparation before they can be laid well. The alternative is a smaller tile, which follows minor variation more forgivingly. NHK Tiling assesses the floor and explains the trade-off before tiles are ordered.
What adhesives and grouts does NHK Tiling use?
Mapei, Davco, Laticrete and Ardex. Both colour grouting and epoxy grouting are available. Epoxy is more resistant to staining and mould and suits bathrooms and heavily cleaned surfaces.
How far is NHK Tiling from Wahroonga?
About 15 kilometres from the base in Kellyville, making Wahroonga the closest Upper North Shore suburb to the business. Site visits are usually available within a few days.

Why Choose Us

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Fully Insured & Licensed

Insured and licensed tilers are accredited to handle most types of tiling projects. At NHK we specialise in bathroom, kitchen, outdoor space tiling. We can also handle all types of tiling jobs – anywhere you are in Sydney.

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$20M Public Liability

Safety is our #1 priority. And to ensure everything is safe and secure, we use high-quality tools, keep training our crew, and acquire a $20M Public Liability Cover. Public Liability insurance can protect us, our workforce and our clients in case injuries or damages happen on the job site.

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100% Customer Satisfaction

We use a customer-centric approach which means, clients, come first. Regardless of your needs, with our combined knowledge and expertise, we’d be able to give you the right advice about the type of tiles suited to your space.

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Workers Compensation

We’re professional and we genuinely care for our workers, and we have prepared a required statutory form of insurance for them.

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100% Quality Guarantee

We only use high-quality materials & work with a wide range of products for indoor and outdoor tiling, such as ceramic, granite, marble, limestone, sandstone, natural stones, porcelain, cobblestone and more.

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30+ Years’ Experience

Backed by 30 years’ experience, there is no tiling job that we cannot undertake. Offering you 100% attention to details & quick turn-around – you will be amazed at our work’s quality.

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Request a free quote on 0402 462 570, or simply enquire online.