Expert Drain Unblocking & Cleaning in South Wales

You don't have to wait for a full-blown flood to know you have a problem. The early signs are often quite subtle. Look out for water draining away very slowly in your sink, shower, or bath. You might also hear strange gurgling sounds from the plughole or notice unpleasant smells coming from inside or outside drains. An overflowing toilet or a manhole cover lifting is a definite sign that you need professional help fast.

While pouring a chemical solution down the sink might seem like a quick fix, it rarely solves the underlying problem. These products often just burn a small hole through the blockage, meaning it will clog up again very quickly. Worse, harsh chemicals can damage older pipes. Our professional drain unblocking service doesn't just poke a hole; we use specialist equipment to clear the entire diameter of the pipe, removing the blockage completely and cleaning the pipe wall to help prevent a reoccurrence.

High-pressure water jetting, or hydro-jetting, is our most effective tool for clearing stubborn drains. We use a high-pressure hose with a specialist nozzle to blast concentrated jets of water into the pipe. This powerful force cuts through grease, fat, scale, wet wipes, and even tree roots, scouring the pipe clean and restoring its full flow. Our experienced technicians control the pressure, so it’s completely safe for your drainage system.

This is a very common problem, especially in the Rhondda and across South Wales. Recurring blockages in an outside drain often point to a more significant issue than just a one-off clog. The cause could be a heavy build-up of fat and grease from your kitchen sink, flushed wet wipes, or leaves and debris. However, it can also indicate a structural problem like a cracked pipe, a collapsed section, or tree root ingress. The best way to find the real cause is with a CCTV drain survey, which lets us see exactly what's happening inside your pipes.

Absolutely. Many products labelled as "flushable" do not break down in our sewer systems like toilet paper does. They clump together with other debris and create solid, stubborn blockages. Likewise, when you pour hot fat, oil, or grease down the sink, it cools and solidifies further down the pipe, sticking to the walls and gradually closing the drain off. This is a leading cause of blockages we see in both homes and commercial businesses.

Yes, we provide reliable and professional drainage services for all types of commercial clients across Cardiff, Swansea, Newport, and the Valleys. From restaurants and pubs dealing with constant grease build-up to offices, retail parks, and industrial sites, we offer a discreet and efficient service. We can provide one-off emergency callouts or set up a regular drainage maintenance plan to keep your business running smoothly and avoid costly downtime.

When you have water backing up, you need help immediately. We offer a genuine 24/7 emergency callout service, 365 days a year. Because we're a local Welsh company, not a national call centre, our response is fast. Our vans are fully equipped, meaning we have everything we need to tackle most drainage problems on the first visit. If you have an overflowing drain or a serious blockage, call Drain King right away.