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How do you install a bathtub in Australia?

Author

Daniel Martin

Updated on March 22, 2026

How do you install a bathtub in Australia?

How to install a new bathtub

  1. Spread mortar on the subfloor first.
  2. Position the tub in place and make sure it is level.
  3. Nail 2.5cm nails to secure the flange to the wall studs.
  4. Connect the drain and water supply pipes.
  5. Seat the drain in the tub with plumber’s putty, press it into place and tighten the cap.

Can you cut an acrylic bath?

Cutting. If you find that you need to cut any excess panel off, use your hacksaw. Let the saw do the work, only pushing and pulling gently and slowly to avoid an uneven cut or damage to the panel – particularly an acrylic bath panel. Remember that you should consider any pipes and skirting boards when cutting.

Do acrylic tubs need a mortar bed?

Whether you are installing a regular acrylic bathtub that doubles as a shower unit or a larger two-person Jacuzzi, most bathtubs require a mortar base for the tub to rest on. Without this support, the plastic of the tub would eventually break and crack.

How do you support an acrylic bathtub?

An acrylic tub is not self-supporting, which means it must be supported along its entire bottom with mortar or grout. It should go without saying that the floor should be solidly constructed to support the weight of the tub, water and the person using it.

How much does it cost to instal a bathtub?

Bathtub Installation or Replacement Cost The average cost to install a bathtub is $4,424, but can range from $1,526 and $7,459, depending on the type of tub and modifications needed. The average cost of the tub itself ranges from $200 to $8,500 or more.

Do plumbers install bathtubs?

Plumbers are experts when it comes to tub installation methods within the household. Plumbers can even install showerheads and faucets onto your new bathtub. They can also carry out bathtub replacement if necessary. Plumbing work is an incredibly intricate job, and a licensed plumber is your best bet for the job.

Is it hard to install bathtub?

Replacing an old bathtub with a new bathtub is a very difficult project. If you have to open a wall to remove the old tub and position the new tub, the task is much harder. You will need a helper to move out the old tub and set in the new one. You may want a professional plumber to make tub connections.

What do you put under an acrylic tub?