Renovating a Bathroom in Hornsby Itself

Two sides of the line, two eras of house

The streets east of the railway and up toward Wahroonga are mostly established family homes, many built in the decades after the war. West of the line, the land drops away toward the Berowra Valley bushland, with steeper blocks, more split-levels and houses that step down toward the gully.

What they share is age. Many of these houses are now sixty to seventy years old, and while the kitchen and flooring have often been updated along the way, the bathroom is regularly the last original room.

A typical example looks like this: a bath with a shower over it and a plastic curtain, pastel or speckled wall tiles to about head height, painted plaster above, a small hopper window, a pedestal basin or a basic vanity, and the toilet in a narrow room next door. Underneath, a mortar-bed floor with little or no fall and no membrane.

What a Hornsby house bathroom usually needs

An asbestos test. Houses of this age commonly have fibro somewhere in the wet areas — wall linings, the ceiling or a floor underlay. Testing before strip-out is routine.

A decision about the separate toilet. It is tempting to knock through for a bigger bathroom. In a house with one bathroom and three or four people, keeping the toilet separate is often the better call.

Pipework. Galvanised supply lines are common. Replacing them while the walls are open avoids cutting into new tiles later.

An exhaust fan ducted outside. Many Hornsby bathrooms have none. Steam goes into the ceiling plaster, and on the shaded side of the house that becomes mould.

Floor repair. On timber floors, the area around the old bath or shower is where softened joists show up. The quote should include an allowance for it.

Steep blocks and access

Plenty of Hornsby homes sit well above or below the street. That affects the job more than people expect:

• Skip placement on a steep driveway or the street, sometimes needing a council permit for the road
• Carrying tiles, adhesive, a bath and the old mortar bed up or down long stairs
• Parking for trades in narrow streets

None of that is unusual, but it takes time and belongs in the price rather than in a variation.

Units near the station

Around the station, the mall and the Pacific Highway corridor, Hornsby has older brick walk-ups alongside larger, newer apartment buildings.

Older walk-ups tend to have compact bathrooms with a bath-shower combination, original tiles and ageing waste pipes in the slab. The stairwell is the only way in, so every bag of rubbish goes down by hand.

Newer apartment buildings have more standardised bathrooms, and some owners renovating them want a change of finish rather than a fix. Building managers commonly require lift protection, bookings and set working hours.

Either way, replacing the bathroom membrane in a strata building normally needs owners corporation approval. See small bathroom renovations for how that process usually runs.

Heritage and bushfire

Parts of Hornsby Shire contain heritage items and conservation areas, and bushland edges west of the town centre are mapped as bushfire-prone. Most internal bathroom work is not affected by either, but it is worth checking the property's planning certificate before assuming the job is exempt — particularly if a window is being changed.

Costs in Hornsby

As a 2026 guide:

• Main bathroom in an older house: $26,000–$42,000
• Unit bathroom: $17,000–$28,000
• Ensuite: $18,000–$30,000
• Laundry: $10,000–$22,000

Asbestos removal, structural repairs and difficult access sit on top. The cost guide explains what moves those numbers, and the process page shows how long the house will be without its bathroom.

Nearby

We also work in Waitara, Asquith, Normanhurst, Pennant Hills and Berowra, plus Hornsby Heights, Mount Colah, Westleigh and Thornleigh.

Renovation work is carried out in partnership with Coastal Renovation Group, a licensed NSW builder. Licence and insurance details are provided on request.

Call 02 5926 2135 or send the room details through.