The layout argument in most bathroom projects is settled on taste and then quietly reopened by the building. A wet room needs a floor that will take it, a decent shower needs water that can supply it, and removing the only bath in a family house is a decision with consequences beyond the bathroom door.
G R Plumbing installs bathrooms across Coulsdon, and these are the constraints worth knowing before the layout is drawn.
What your water supply will actually support
The shower you can have is decided by how water gets to it. A combi boiler heats on demand, so the shower runs at whatever flow rate the incoming main provides, and no showerhead will improve a weak supply. A stored, unvented cylinder delivers hot water at mains pressure with much better flow, which is why it suits homes with more than one bathroom.
An older gravity-fed system, with a cold tank in the loft, delivers pressure proportional to the height between tank and outlet, which is why ground floor showers on those systems are often disappointing. A pump can solve it, but only on a vented system, and never on a mains-fed or unvented one.
- Combi shower performance is limited by the incoming mains flow.
- Unvented cylinders give mains pressure to several outlets at once.
- Only vented, gravity-fed systems can be pumped.
Wet rooms: what the floor has to do
A wet room is a fully tanked room with a graded floor draining to a point, and the demands are structural rather than decorative. The floor has to fall consistently toward the drain across the whole wet area, which on a timber floor usually means a purpose-made former set into the joists, and that in turn means the floor construction has to allow the depth.
Waterproofing is the other half. The whole wet zone is tanked before tiling, because grout is not waterproof and a wet room without tanking is a slow leak with a tiled finish. Done properly, a wet room is superb, level access, easy to clean, and it makes a small room feel considerably larger.
- The floor must fall to the drain across the whole wet area.
- Timber floors usually need a former set between the joists.
- Tanking is not optional; grout alone does not keep water out.
Keeping a bath, and when to let it go
In a house with one bathroom, removing the bath narrows the market when the house is sold and makes bathing small children awkward. In a house with two, a bath in one and a good shower in the other is usually the better arrangement than compromising both rooms into shower-baths that neither bathe nor shower particularly well.
Where space is genuinely tight, a decent-sized shower enclosure often beats a bath that nobody uses. The honest question is how the household actually lives now, and how it will live in five years, rather than what a showroom layout suggests.
- One bathroom in a family house usually keeps a bath.
- Two bathrooms: specialise rather than compromising both.
- A shower-bath is a compromise at both jobs, not a solution to either.
The details that decide how it lives
Waste falls are the most common source of later complaint: a shower that drains slowly is almost never a blockage, it is insufficient fall on the waste run, and correcting it means lifting the floor. Extraction matters just as much, because a bathroom without adequate ventilation ducted outside grows the mould that spoils the decoration within a year.
Then the practicalities: isolation valves on every supply so a future tap change is a small job, access to any concealed valve, and heating sized for a room that is wet and used briefly. G R Plumbing settles those at first fix, since every one of them becomes a tiled-wall problem afterwards.
Related pages
Questions customers ask
Can I have a powerful shower with a combi boiler?
Only as powerful as your incoming mains flow allows, because a combi heats water on demand as it passes through. Where the mains flow is modest, a stored, unvented cylinder is the route to a strong shower.
Can any bathroom be converted into a wet room?
Most can, but the floor decides the difficulty. The wet area must fall to the drain, which on a timber floor usually means fitting a former between the joists, so the floor construction and available depth need checking first.
Should I remove the bath if we only use the shower?
In a house with more than one bathroom, often yes. In a one-bathroom family house it is worth keeping, both for practicality and because most buyers expect a bath somewhere in the property.
Start with the water supply, then the floor, then how the household actually lives. Layout and finishes follow those three easily; reversing the order is what produces a beautiful room with a weak shower.
G R Plumbing covers Coulsdon for bathroom installation. The contact page takes room dimensions and your current hot water arrangement.
