A dripping tap or mixer can come from a cartridge, seal, valve, connection or worn fixture. Learn how to identify the likely fault and when repair or replacement makes better sense.
A leaking tap or mixer in Dubai can be as simple as a worn internal seal, but not every leak comes from the same place. Water may drip from the spout, appear around the handle, collect at the base of the mixer, or leak from the flexible connections below the basin or sink. Each pattern points to a different repair direction.
The professional approach is to identify the exact source first and then decide whether the existing fixture is worth repairing. BMS provides tap, mixer and general plumbing services in Dubai for bathrooms, kitchens and other property fixtures.
Quick answer: repair or replace?
Repair usually makes sense when the mixer body is sound, the fault is limited to a serviceable cartridge, washer, seal or connection, and suitable replacement parts are available. Replacement becomes more attractive when the fixture is badly corroded, cracked, repeatedly failing, difficult to source parts for, or already near the end of its useful condition.
Where is the tap leaking from?
Dripping from the spout
If water continues dripping after the handle is fully closed, the internal valve is not sealing correctly. Traditional taps may use washers or other sealing components; many modern mixers use ceramic cartridges. Replacing the correct internal component can restore shutoff when the rest of the fixture is in good condition.
Leaking around the handle
Water around a lever or handle can indicate an internal cartridge or seal problem. The leak may only appear while the tap is running, which is why observing when the water appears is useful.
Water around the base of the mixer
A base leak can come from the mixer body, O-rings or seals, mounting arrangement, swivel spout components or nearby connections. The water can then travel across the countertop and make the source look different from where it actually began.
Leak under the sink or basin
Water below the fixture may come from flexible supply hoses, isolation valves, threaded connections, the mixer tails, waste fittings or even the sink drain rather than the tap itself. A plumber should trace the first wet point instead of replacing the visible fixture automatically.
Common causes of tap and mixer problems
- Worn cartridge or internal valve component.
- Damaged washer, O-ring or seal.
- Loose or deteriorated supply connection.
- Corrosion or damage inside the fixture body.
- Debris affecting the valve or aerator.
- Loose mounting hardware.
- A mismatch between replacement parts and the existing mixer.
Why identifying the mixer type matters
Different mixers use different cartridges, mounting systems and connection sizes. Two taps can look similar from the outside but use completely different internal parts. If a repair requires a cartridge, the correct dimensions and design matter.
For this reason, sending a clear photo of the mixer, handle and any visible brand/model information before the visit can help with preparation, although final compatibility should still be confirmed on site.
What about low flow from the tap?
Weak flow is not always a leak. An aerator can become restricted, a local valve can be partly closed, a supply hose can be affected, or the issue may be part of a wider pressure problem. If the tap is not leaking but the flow is weak, compare it with other fixtures before deciding that the mixer itself needs replacement.
Signs that repair is probably the better first option
- The fixture is otherwise in good physical condition.
- The leak began recently and is clearly linked to a serviceable component.
- The mixer is a quality model with parts available.
- There is no cracking or severe corrosion.
- The repair cost and disruption are reasonable compared with replacement.
A proper repair should address the cause, not simply tighten fittings until the leak temporarily stops.
Signs that replacement may make more sense
- The fixture body is cracked or badly corroded.
- Several internal parts are failing at the same time.
- The tap has already been repaired repeatedly.
- Correct cartridges or proprietary parts cannot be sourced reliably.
- The mounting or connections are damaged.
- The customer already wants a different functional design and the plumbing connections can support it.
Kitchen mixers need a slightly different check
Kitchen mixers often see heavy daily use and may include pull-out hoses, swivel spouts or additional moving components. A leak can come from the hose, spray head, swivel seal or connection below the sink rather than the cartridge alone. In a kitchen, always check both the water-supply side and the waste/drain side before deciding where the moisture originates.
Bathroom mixers and concealed components
Bathroom plumbing can involve basin mixers, shower mixers, bath mixers and concealed valves. A visible drip at the outlet is different from leakage behind a wall or around a concealed control. If moisture appears in the wall, ceiling below or adjacent room, the issue requires wider leak diagnosis rather than a simple surface repair.
Our bathroom plumbing services guide covers the wider set of bathroom faults and repair decisions.
Do not ignore small leaks under cabinets
A slow connection leak can damage cabinet boards, finishes and stored items even when it never creates a dramatic flood. Check underneath sinks periodically, especially after a mixer has been replaced or plumbing work has been completed. Early moisture is much easier to address than long-term swelling or staining.
What should a professional tap repair include?
A good repair begins by confirming the leak source, isolating the water safely, inspecting the relevant component, replacing or servicing the correct part, restoring the supply and checking the fixture under normal operation. The technician should also inspect nearby connections when the leak source is ambiguous.
| Symptom | Likely area to inspect | Repair direction |
|---|---|---|
| Spout drips when closed | Internal valve/cartridge | Service or replace correct component |
| Handle leaks during use | Cartridge/seals | Inspect internal sealing |
| Water at mixer base | Base seals/body/connections | Trace exact path |
| Water below sink | Supply hoses/valves/waste | Identify first wet connection |
| Weak flow only | Aerator/local supply/pressure | Diagnose restriction before replacement |
When to call a plumber
Arrange plumbing support when a leak continues after normal shutoff, water is appearing below the sink or inside cabinetry, a concealed fixture may be leaking, the correct replacement part is uncertain, or repeated DIY tightening has not solved the problem. If the leak suddenly becomes uncontrolled, isolate the water where safe and treat it as an urgent issue.
BMS has completed 600+ plumbing service jobs with 98%+ reported customer satisfaction based on the business figures supplied for the plumbing service. Use the BMS plumbing page to request tap or mixer diagnosis, repair or replacement.
Cartridge, washer, seal or complete mixer?
The correct repair depends on how the tap is built. Traditional taps may use washers or valve mechanisms, while many modern mixers use ceramic cartridges and model-specific seals. Replacing a generic part without matching the fitting can cause poor movement, continued dripping or damage to the body. A plumber should identify the manufacturer or cartridge type where possible and confirm whether a compatible service part is available before recommending a complete replacement.
Repair value changes with age and condition
A quality mixer in good physical condition can be worth repairing when the fault is limited to a cartridge, seal or connection. Replacement becomes more sensible when the body is cracked, heavily corroded, repeatedly leaking from different points or when obsolete parts are unavailable. The decision should also consider how much dismantling is required and whether the surrounding sink, worktop or concealed connections are in good condition.
What affects tap repair or replacement cost?
Costs vary with the fitting type, required part, access below the basin or sink, isolation-valve condition and whether the replacement requires changes to hoses or connections. A concealed shower mixer is a different job from a standard basin tap. For this reason, photos of the fixture and the area underneath can help BMS prepare the correct tools and likely components before attendance, but final pricing should reflect the condition found on site.
Protect cabinets and worktops from slow leaks
Small mixer leaks can be costly when they wet timber cabinets, laminate edges or stone joints for weeks. Check below the fixture after use, not only while the tap is running. Dampness around braided hoses, valves or mounting hardware can reveal a supply-side problem that is not visible from above. Early repair is usually simpler than repairing water-damaged cabinetry later.
Service preparation note
For a more efficient visit, provide the exact Dubai location, property type, affected fixture, when the symptom began and any photos that show the problem clearly. Do not dismantle concealed plumbing or force seized valves simply to create access. The objective is to give the technician enough information to arrive prepared while keeping the installation safe for proper diagnosis.
Need a quote or technical guidance?
Share your emirate, property or business type, relevant photos, site access details and preferred timing. BMS will confirm the appropriate next step.
Frequently Asked Questions
Why does my tap drip even when fully closed?
The internal sealing component may be worn or obstructed. Depending on the tap design, this can involve a cartridge, washer, ceramic-disc assembly or another valve component.
Can every mixer tap be repaired?
No. Many can be repaired when suitable parts are available and the fixture body is in good condition. Severe corrosion, cracks, repeated failures or unavailable parts can make replacement the better option.
Why is water leaking from the base of the mixer?
A base leak can involve seals, mounting connections, internal leakage or nearby supply connections. The exact source should be identified before parts are changed.
Should I buy a new tap before the plumber arrives?
Usually not unless the existing fixture is clearly beyond repair and the replacement specification is already known. Diagnosis first helps avoid buying an incompatible mixer.