Blocked Drains in Watford, Hertfordshire

A drain that serves only your property is generally yours from the house to the boundary. Since 2011, lateral drains and sewers that serve more than one property, or lie outside your boundary, belong to the sewerage company. In Watford's terraces, drains often join before leaving the street. If several neighbours have the same problem, it is probably not yours. The partner company can tell you what it finds.

Fat, oil and grease cool and set in the pipe, trapping food waste and building into a blockage. Pouring hot water down the sink does not fix it, since the fat sets again further down. Wipes, coffee grounds and rice cause trouble too. Rods or jetting clear it for now, and bin the grease rather than pouring it away. Persistent blockages may mean a poorly laid run.

Yes. The first step is to stop flushing it and try not to use the bathroom until it is cleared. A toilet blocked by too much paper or an object is usually cleared with a plunger, auger or rods. If it keeps blocking, or other fittings gurgle too, the blockage is further down the drain and needs rods, jetting or a survey. Say so on the call.

Drain rods are flexible lengths pushed down the drain to break through a blockage, and are fast and effective for a simple obstruction. Jetting uses high-pressure water to scour the pipe wall and flush away fat, silt and debris. Jetting leaves a cleaner pipe but needs the right equipment. The partner company uses whichever suits what it finds and explains why.

A small camera on a flexible cable is fed into the drain and shows the inside of the pipe on a screen. It is needed when a drain keeps blocking, when there are signs of collapse or root ingress, or when you want evidence before a repair or a house purchase. The survey is quoted in writing, and you can ask for a copy of the findings.

Yes. Roots find the tiny gaps in old clay pipe joints and grow into the pipe looking for water. Over time they form a mat that catches debris and blocks the flow. In Watford's older streets with mature trees, such as around Cassiobury, it is a regular cause. Roots can be cut back by a jetting or cutting head, and damaged sections may need patch lining or replacing.

Stop using water in the house, particularly toilets, and keep children and pets away from overflowing foul water. Do not try to clear it with chemicals. Ring us and we will find the nearest partner company with drainage equipment. If the overflow is in a shared drain and neighbours are affected, tell them too, and the sewerage company may need contacting.

They can clear a minor blockage in a sink or basin, but they are not a cure for a blocked drain, and strong products can damage pipes, harm the skin and make later clearing hazardous for whoever has to work on the drain. If a drain has blocked, tell the partner company what you used. For repeat blockages, a mechanical clear and a survey are better than another bottle.

A simple sink, basin or toilet blockage can be cleared in under an hour. A blocked external drain with rods or jetting typically takes an hour or two, depending on access and how entrenched the blockage is. A survey and a larger repair take longer. The partner company should give you an idea when it confirms the booking.

Yes. The same line covers all of Watford and the three neighbouring areas, and the partner company nearest you takes the call. Drainage varies: Croxley Green's Victorian cottages near the Grand Union Canal, Bushey's older villas and Oxhey's estate housing all have different drain layouts, so give us your postcode and tell us which fitting or chamber is affected. See Bushey, Croxley Green and Oxhey.

Gurgling usually means air is being drawn through the toilet trap because waste water is draining slowly or the drain is partly blocked. When the washing machine empties, the surge of water pulls air through the nearest trap. It is an early warning that the drain is restricted or the vent is blocked. Clearing the drain or checking the vent pipe usually stops it.

Often, yes. Put cooking fat in the bin, not down the sink, use a strainer to catch food and hair, and flush only toilet paper and waste. Wipes, even those labelled flushable, are a major cause of blockages. Where roots or damaged pipes are the cause, only a repair will stop it. The partner company can tell you which applies after it has cleared and inspected the drain.

Boiling water can soften a fat blockage briefly but may also soften plastic pipework and pushes the problem further along, and bleach does little against most blockages while making the pipes unpleasant for whoever clears them. A plunger is safe for sinks and toilets. If that fails, stop adding anything and ring us, because a mechanical clear with rods or jetting is the reliable fix.