How much does a washbasin replacement cost

The cost comes down to the basin type, how it is fitted, and the condition of the plumbing. A wall-hung basin on brackets is one kind of job, a pedestal basin is another, and a countertop inset is different again. If the supply hoses are worn out and have to be changed, or the pipe diameter does not fit, that is added separately. The current rates for all bathroom work are listed in the table below. Fixings are part of the price: the basin and mixer tap are provided by the client.
| Service | Price |
|---|---|
| Washbasin installation | 200–500 zł |
| Washbasin replacement | 250–600 zł |
| Vanity unit installation | 300–600 zł |
| Basin tap installation | 150–250 zł |
| Basin tap replacement | 250–400 zł |
| Floor toilet installation | 300–500 zł |
| Floor toilet replacement | 350–600 zł |
| Wall-hung toilet installation (frame) | 450–700 zł |
| WC frame replacement | 600–1500 zł |
| Bathtub installation | 400–900 zł |
| Bathtub replacement | 500–1000 zł |
| Shower cabin installation | 350–1200 zł |
| Shower tray installation | 500–800 zł |
| Shower tray replacement | 600–1000 zł |
| Linear drain installation | 400–900 zł |
| Re-sealing shower and bathtub | 250–600 zł |
| Towel radiator installation | 300–600 zł |
| Towel radiator replacement | 350–700 zł |
| Drain cleaning | 200–800 zł |
| Trap (siphon) replacement | 120–400 zł |
Indicative prices. Ranges for a typical scope. Fixings included, materials separate. Minimum order 300 zł.
What it costs and how to book: plumber in Warsaw.
Why replacing a basin takes longer than installing one
With an installation the wall is clean. With a replacement, the remains of the old basin have to go first.
- Scaled-up trap and hoses. Old joints hold limescale and rust, and the nuts won’t turn.
- Angle valves. Old valves often don’t shut off fully and get replaced before the new tap is connected.
- Silicone and tiles. Old silicone has to be cut out, and tiles are easy to damage when the basin comes off.
- Old holes. A new basin has different fixing centres, so old holes get filled and new ones drilled.
- Disposal of the old basin and vanity unit is charged separately.
If the bathroom is new and there is no old basin, washbasin installation is enough.
How the replacement works

- Tradespeople turn off the water — using the isolation valves under the basin, or the main riser valve if the local ones do not shut properly. Tradespeople make sure the water has stopped completely.
- Tradespeople disconnect the trap and the flexible supply hoses. A bucket goes underneath: there is always some water left sitting in the trap.
- Tradespeople take the old basin off its brackets or unscrew it from the wall. With pedestal models: first the bowl comes off, then the column.
- Tradespeople check the wall: the state of the anchors, tiles and pipe outlets. If the new basin’s fixings do not match the old holes, they drill fresh ones.
- Tradespeople fit new brackets or threaded studs, hang the basin, and level it.
- Tradespeople connect the mixer tap, flexible hoses and trap. If the hoses are old or too short, they change them.
- Tradespeople turn the water back on, inspect every connection for leaks, run water through the trap and keep an eye under the basin for a few minutes.
Any job involving water needs care: one badly tightened connection can start dripping an hour later, after the technician is already gone. That is why they inspect every joint twice and leave a dry tissue under the trap, if it stays dry after ten minutes, the seal is sound. If there is any concern about the condition of the valves or pipework, it makes more sense to replace them on the spot than deal with a leak later.
Common mistakes during washbasin replacement

- Not turning the water off fully — the valve seems closed but still lets water through. Once the hose is disconnected, water runs onto the floor.
- Keeping the old flexible hoses: after a year or two they begin to leak, especially when they are more than five years old.
- Buying a basin without checking the spacing between the hot and cold water outlets, the mixer tap cannot reach properly.
- Drilling tiles with an ordinary bit — the tile cracks, and fixing that costs more than the whole replacement.
- Installing a heavy ceramic basin on old anchors, within a month it starts to sag or pull away from the wall.
- Using silicone sealant instead of proper thread tape on screw joints, with hot water, silicone loses flexibility over time.
- Not checking the trap gradient — water remains in the pipe and a smell starts coming back.
What to prepare before the visit

- Buy the new washbasin: first measure the distance between mounting centres and between the water outlets.
- Buy a mixer tap if the old one does not suit the new basin (different hole type or hole count).
- Check whether the isolation valves under the basin are working — if they do not shut fully, say so in the order in advance.
- Remove everything from under the basin: cleaning products, baskets, the vanity unit if it blocks access.
- Set aside a place in the hallway for the old basin, they will take it off, but carrying it out of the flat is charged separately.
- If you need a specific trap model or a trap with a washing-machine branch, get it beforehand.
- Make sure the new basin actually fits the space — it should not press against the wall, bathtub or furniture.
- If you want to move the basin to a new position (shift it sideways), that is a different job and means relocating pipework.
A real case from Warsaw: washbasin replacement

Tradespeople got a call to a flat in Wola. The owner had bought a new wall-mounted basin, then found out the old brackets were no use, the mounting centres were 7 cm away from where the new fixings had to go. The previous basin had stood on a pedestal, and the brackets behind it were hardly anchored at all. Tradespeople had to drill fresh holes through the tiles. Tradespeople used a diamond-tipped bit so the ceramic would not crack. Tradespeople installed heavy-duty anchors — the new basin weighs 13 kg, and you also have to allow for the downward load when somebody leans on it. Tradespeople changed both flexible hoses and the trap, the old ones were about six years old and the rubber seals had gone hard. Everything was connected and tested: fully dry. The whole job took a little under an hour. The owner checked again three days later and confirmed there was not a single drop.
Frequently asked questions
Do I have to replace the trap when changing the basin?
No, it is not required, but they do advise it. If the trap is more than three or four years old, the seals are already stiff and may not seal properly once refitted. A new trap is cheap and gives you a leak-free finish.
Can I install a different type of basin in the same spot?
In most cases yes, as long as the water and waste outlets line up. But if you are changing from a pedestal to a wall-mounted model, new anchors will be needed. If you are switching to a vanity-mounted basin, you need to check that the vanity unit fits the available space.
Does the water need to be shut off to the whole flat?
No, not if there are working isolation valves under the basin. If there are no valves, or they do not hold, they shut off the riser. It only takes a couple of minutes and they tell you beforehand.
What if there are no tiles behind the old basin?
That happens — the tiles were never installed because the pedestal covered the wall. A new wall-mounted basin may leave that area exposed. In that case, either you add tiles or choose a larger basin that hides the gap.
How long does a replacement take?
A simple swap takes from forty minutes to an hour and a half. If you need to drill new holes, replace hoses, or sort out the valves, it can stretch to two hours.
Can a tradesperson supply the washbasin?
No: the client buys the basin. Tradespeople can advise on the dimensions and mounting type, so you get one that fits properly.
Book your washbasin replacement

Tradespeople cover all of Warsaw. Tradespeople come with tools, fixings, sealing materials and a full set of spanners. Tradespeople take out the old basin, fit the new one, connect the water supply and check every joint for leaks. Clean work, efficient, no messing about.
Order in the app
Describe the job, add photos and the address. Tradespeople send their own prices and dates, and you pick one of the offers.
Open the app

