Plumbing repairs and installations in Khalifa City

A wet cabinet has two possible sources, and knowing which one narrows the job considerably.

Supply-side leaks come from the pressurised water feeding the tap. They can drip even when nothing is running. Common points are:

• Flexible hoses. Braided hoses can corrode, bulge or split, especially if kinked or exposed to cleaning products stored in the same cabinet. A hose with a bulge or rust-coloured braid should be replaced before it fails.
• Angle (isolation) valves. These can weep around the spindle, seize, or fail to shut off fully.
• The tap connection, where the hoses screw into the underside of the mixer.

Waste-side leaks only happen when water is draining away. Common points are:

• the trap (the U-bend or bottle trap under the basin);
• the waste outlet and its seal, where it passes through the sink or basin;
• compression joints between the trap and the wall pipe.

A simple check you can do

Dry everything under the sink, lay a sheet of kitchen paper on the cabinet floor, and leave the tap off for ten minutes. If the paper gets wet, the leak is likely on the supply side. If it stays dry, run the tap for a minute. Paper that only gets wet then points to the waste side. Tell us which, and take a photo of where the drips land.

Don't tighten, loosen or dismantle fittings yourself. Over-tightening a compression joint or forcing a valve can turn a drip into a burst.

Useful photos

One of the whole under-sink area, one close-up of the wet joint, and one showing the hoses and valves where they meet the wall.

If the damage has spread: a swollen cabinet base, loose panels or a damp wall behind the sink suggest the leak has been running for some time. Plumbing repair stops the water. Repairs to cabinets or wall finishes are separate work; if you'd like them looked at too, include them when you book and we will confirm what can be done.

"My toilet is leaking" can mean several different faults. Describing which one you have saves a lot of time.

• Water trickling into the bowl, or the cistern refilling by itself. You may hear a faint hiss, or see small ripples in the bowl. This may indicate a worn flush-valve seal letting water pass, or a fill valve that isn't shutting off at the correct level so water runs into the overflow. It wastes water constantly but doesn't wet the floor. Repairs usually involve replacing the seal, the flush valve or the fill valve.
• Cistern not filling, or filling very slowly. One possible cause is a blocked or faulty fill valve. A partly closed isolation valve is another.
• Weak flush, or needing to flush twice. This can be caused by a low water level in the cistern, a worn flush mechanism, or a partly blocked outlet.
• Button or flush plate not working. Push-button and dual-flush mechanisms rely on small parts such as cables, rods, pneumatic tubes or plastic linkages. These can snap, disconnect or wear, and are often repairable if the correct part is available.

Water on the floor around the base has several possible sources:

• the supply hose or valve feeding the cistern;
• the seal between cistern and pan on close-coupled toilets;
• the connection between the pan and the waste pipe;
• condensation on the outside of the cistern in humid weather.

Wipe the area completely dry, then watch where water reappears first. Water that appears only after flushing is more likely to come from the waste connection, which normally means lifting and resealing the toilet. Water that appears without flushing points to the supply or the cistern.

Concealed cisterns

Many bathrooms have the cistern hidden in the wall behind the flush plate. Most fill-valve, flush-valve and mechanism repairs can be carried out through the flush-plate opening, but this depends on the cistern's brand, model and age, and on whether parts for it are still available. Some concealed cisterns can't be fully repaired without opening the wall or boxing, which is inspected and quoted where required. A photo of the flush plate, including any brand name, lets us check before the visit.

Repair or replace the toilet?

Internal cistern parts are designed to be replaced, so a running or weak-flushing toilet rarely needs a new toilet. Replacement is more likely to make sense when the pan or cistern is cracked, parts for the cistern are no longer made, or you want a different style. For a replacement, tell us whether the toilet is floor-standing or wall-hung and where the waste leaves the pan (floor or wall), because the new toilet must suit the existing outlet.

First, separate fixture problems from whole-home problems.

• One shower affected, other taps normal: the cause is more likely to be in that shower's mixer, hose, head or valve. Inspection is needed to confirm it.
• Hot water weak, absent or too hot everywhere: the cause is more likely the water heater or the hot-water supply than the shower. Water heater faults are assessed by inspection and quoted where required.
• Low pressure at every fixture: this may point to the supply, a main valve, or, in homes with their own tank and booster pump, the pump system. These are inspected and quoted where required.

Fixture-level shower problems

• Low flow at the head: limescale or debris in the shower head, a kinked or collapsed hose, or a worn mixer cartridge.
• Temperature swings, or water too hot or cold: this may be a worn mixer or thermostatic cartridge, or a partly blocked filter at the mixer inlet.
• Water from the spout and head at the same time: this is often a worn diverter.
• Leaking hose or head: worn washers at the connections, or a split in the hose itself.
• Water on the bathroom floor, or showing on the other side of the wall: this can be caused by failed silicone around the tray or screen, cracked grout, or a leak from the mixer body inside the wall. A leak inside the wall needs investigation before anyone can say what the repair involves, and is inspected and quoted where required.

Exposed versus concealed mixers

An exposed mixer (for example, a bar mixer mounted on the wall surface) can often be repaired or swapped from the room side, provided the replacement matches the wall connection spacing.

A concealed mixer has its valve body built into the wall behind a trim plate. Cartridges and diverters can often be changed from the front. Replacing the valve body itself usually means opening tiles, which is inspected and quoted where required. If you're only thinking of changing the trim or handle style, check first that the new trim is compatible with the valve already in the wall.

• Mixer leaks: the same causes as bathroom taps, plus wear on pull-out spray hoses, which flex every time they're used and can leak inside the cabinet.
• Under-sink connections: hoses and valves as above. Kitchen cabinets often also hold a water filter and appliance connections, so there are more joints to check.
• Waste and trap problems: kitchen traps collect grease and food residue. A slow kitchen sink is often a trap restriction.
• Washing machine and dishwasher connections: leaks often come from the inlet hose washer, a worn or split hose, the supply valve, or where the drain hose joins the sink waste or standpipe. We can check and repair these water and drain connections. Faults inside the appliance itself, such as pumps, motors or control boards, need an appliance technician.
• Sink and mixer replacement: straightforward when the new unit suits the existing worktop cut-out, tap hole and waste position. A different sink size or bowl layout may also need worktop work, which is quoted separately where required.

One slow fixture usually means a local restriction: hair and soap residue in a basin or shower trap, grease in a kitchen trap, or debris caught in a pop-up waste. These can often be cleared at the accessible trap.

A smelly floor drain in a bathroom or utility area that isn't used often may simply have a dry trap. Pouring water into it can restore the seal. A smell that persists after that needs checking.

Several fixtures draining poorly at once, water rising in one fixture when another is used, or gurgling from drains, suggests a restriction further down the system. In an apartment building, that may be in shared drainage managed by the building. In a villa, it may be in external lines or inspection chambers. Blockages beyond accessible traps are inspected and quoted where required.

If you've already used a chemical drain cleaner, tell us before the visit. Some products remain in the trap and are hazardous when the trap is opened. Don't mix different cleaners.

Signs worth investigating:

• a damp patch, bubbling paint or a stain that grows or keeps returning;
• a musty smell near a bathroom or kitchen wall;
• water appearing around a fixture with no obvious source;
• a neighbour reporting water coming through their ceiling;
• a fixture behaving oddly, such as a cistern that keeps refilling or a pump that runs when nothing is in use.

A technician can check the accessible fixtures, hoses, valves, seals and visible pipe runs to find the source or rule out the common causes. An apparently hidden leak can turn out to be a cistern leaking internally, a failed hose inside a cabinet, or a shower seal.

When the source isn't at an accessible fixture, such as a pipe inside a wall or beneath a floor, finding it may need specialist equipment or opening finishes. This is inspected and quoted where required, and some work may need a specialist or another trade.

We'd rather tell you at the start than half-way through a job. The following situations start with an inspection, and may need a quote, a specialist, another trade, or someone else's involvement:

• Water heaters. They combine water, pressure and electricity. Faults are assessed by inspection, and repair or replacement is quoted where required.
• Water tanks and booster pumps. If a home has its own tank and pump, low pressure throughout may be a pump issue. These are inspected and quoted where required.
• Concealed pipework inside walls or under floors, where tiles or finishes have to be opened.
• Major drainage, including external lines, inspection chambers and sewer connections.
• Shared building systems in apartment buildings, such as risers, main valves and common drains, which are normally maintained by the building's management or facilities team. We can identify whether a visible issue appears to be inside your unit or may need building-management attention.
• Utility-side supply or metering problems, which are for the water provider.
• Tile opening, repair, tiling or finishing work, which may involve other trades as well as plumbing.

If you rent, or if the problem may involve shared parts of a building, contact your landlord, property manager or building management as well. Who handles and pays for a repair can depend on where the problem is, your tenancy agreement and the building's maintenance arrangements.

An older fixture isn't automatically a candidate for replacement; many well-made taps and cisterns run for years with occasional part changes. The technician explains the options after inspecting, and any replacement is explained and approved by you before we proceed.