
Service
Bathtub Installation
Fitting baths, including the support underneath, the waste and overflow connection and the seal to the wall that stops water reaching the floor.
- Licensed and insured
- Price agreed before work
- A plumber who works your area
Support first, everything else second
A bath filled with water and a person is a heavy load carried on a thin shell, and how it is supported decides how long everything else lasts.
The cradle or frame supplied with the tub is a starting point, not always the finished job. Many installations need the base bedded, or additional support under the centre, particularly with acrylic.
The symptom of getting it wrong is a bath that flexes or creaks when you step in. That flexing works the silicone joint at the wall loose, opens the waste connection, and eventually cracks the shell.
It is invisible in the finished bathroom and it determines whether the installation is trouble-free for twenty years.
Seal it full
The silicone joint between the bath and the tiling is made with the bath filled with water. This is not fussiness.
An empty bath sits measurably higher than a loaded one. Seal it empty, and the first time someone uses it the tub drops away from the wall and tears the top of the bead open. Water then runs behind the bath instead of into it.
Filling the bath first means the joint is formed in the position it will spend its life in, so it stays closed under load.
The bath stays full until the silicone has cured. It is an inconvenient afternoon and it is the difference between a seal that lasts and one that fails in a month.
Does this sound familiar?
Problems this service solves
- Fitting a bath in a new or renovated bathroom
- Replacing a bath that has cracked or is beyond repair
- A bath that flexes because it was never supported properly
- Changing bath size or position in a layout
- A waste that will not line up with the existing trap
Signs you need bathtub installation
If more than one of these is true, the problem is usually past the point a plunger or a store-bought cleaner will fix.

- The bathroom is being renovated
- The existing bath flexes or creaks when used
- The old bath is cracked or the finish has failed
- The layout is changing
What to expect
How the visit works
Check access and the route
Baths are large and rigid. Whether one can physically reach the room is worth confirming before it is ordered, not on delivery day.
Support the tub properly
A bath full of water and a person is heavy. The cradle, feet and any bedding are what stop it flexing, and flexing is what breaks seals.
Connect waste and overflow
The waste, overflow and trap are assembled with new seals and set so the trap has proper fall to the branch.
Seal with the bath loaded
The silicone joint to the wall is made with the bath full, so it is sealed in its loaded position rather than opening up the first time it is used.
What's included
What you get on every job, whoever we send.

- Access checked before the bath is ordered
- Supported so it does not flex under load
- New waste and overflow seals, not reused ones
- Sealed to the wall with the tub full, so the joint holds
Questions
Bathtub Installation questions
Why does the bath need to be full when it is sealed?
Because it moves. An empty acrylic or steel bath sits slightly higher than one holding water and a person, and the difference is enough to matter at a silicone joint. Seal it empty and the first bath pulls the tub down away from the wall, opening a gap along the top of the bead. Filling it first means the joint is formed in the loaded position, so it stays closed in use rather than tearing open.
Does a bath need extra support underneath?
Almost always, and it is the step that gets skipped. A full bath with someone in it is a substantial load concentrated on a thin shell, particularly with acrylic. The frame or cradle supplied is the minimum; many installations also need the base bedded or additional support under the centre. A bath that flexes when you step in is not just unpleasant, it works every seal around it loose over time.
Can I put a new bath in the same space?
Usually, but check three things first. Standard sizes vary more than people expect, so measure the alcove rather than assuming. The waste position may differ, which changes the trap arrangement below. And the tap holes may not match your existing tap set. None of these are difficult, they are just much easier to know before delivery than after.
Related services
Bathtub Repair
Repairing baths and their fittings, including waste and overflow assemblies, taps, and the leaks that show up in the ceiling below rather than the bathroom.
See what this coversTub to Shower Conversion
Replacing a bath with a walk-in shower, which changes the waste position, the valve height and the waterproofing, not just the fixture.
See what this coversBathtub Drain Repair
Repairing bath waste assemblies, including plugs that will not seal, corroded waste bodies and the linkage that connects the overflow to the drain.
See what this coversWater Heater Repair
Diagnosis and repair of gas, electric and tankless water heaters, including no-hot-water calls, leaks, pilot problems and sediment flushing.
See what this covers

Get it fixed
Bathtub Installation, handled locally
Call with your ZIP code and what you are seeing. We route you to a licensed plumber in your area who does bathtub installation every week.
- Licensed and insured
- Answered 24/7
- Price before work