How Much Does It Cost to Clear a Blocked Drain in 2026?

Clearing a single blocked drain costs £80 to £250 during normal working hours, and that figure usually includes the callout. Most everyday blockages from fat, wipes, or silt are cleared with drain rods or a hand auger at the lower end of that range. A stubborn or repeat blockage that needs high-pressure water jetting costs £100 to £300. If you call out a firm in the evening, overnight, or at the weekend, expect to pay a premium of £150 to £400, so it pays to wait until the morning where it is safe to do so.

You are responsible for the drains and pipes that sit inside the boundary of your own property and only serve your home. Once a drain is shared with neighbours (a lateral drain) or it becomes the public sewer in the road, it is almost always the job of your local water and sewerage company. If the blockage is in a shared or public section, call your water company first because they will usually clear it free of charge. Before you pay a private firm to dig, work out where your boundary ends and the shared drain begins, otherwise you could pay for work that was never yours to fund.

It depends on your policy. A simple blockage caused by fat, wet wipes, or leaves is normally treated as maintenance and is not covered. Many insurers do offer optional home emergency cover that pays to clear a blocked drain and stop it flooding your home, and standard buildings insurance often covers damage from a sudden event such as a collapsed drain. Gradual problems like slow root ingress or general wear and tear are usually excluded. Check your policy wording and call your insurer before booking the work, as they may require you to use one of their approved contractors for the claim to stand.

A drain that blocks again and again is usually a sign of something more than a one-off clog. Common causes are fat, oil, and grease cooling and hardening inside the pipe, wet wipes and sanitary products that do not break down, and a build-up of leaves and silt in outside gullies. Underground, tree roots are the biggest culprit, working into pipe joints and slowly choking the flow. Older clay pipes can also crack, sag, or partly collapse with age, which traps debris. If clearing the blockage only buys you a few weeks, it is worth paying for a CCTV survey to find the real cause rather than paying to unblock the same drain over and over.

Both clear blockages, but they suit different jobs. Drain rodding pushes a flexible rod down the pipe to break up or shift a blockage and is cheaper, around £60 to £150, which makes it fine for a simple, accessible clog. High-pressure water jetting blasts the inside of the pipe clean with a powerful jet and costs £100 to £300. Jetting is more thorough, clears fat, scale, and root debris that rods leave behind, and gives a cleaner pipe for a camera to inspect afterwards. For a one-off blockage, rodding often does the job. For a recurring problem or a pipe that needs surveying, jetting is the better choice.

An emergency or out-of-hours drain unblocking callout costs £150 to £400, well above the £80 to £250 you would pay for the same job in normal working hours. The premium covers evenings, nights, weekends, and bank holidays. It is worth paying when a drain is actively flooding your home or garden, or sewage is backing up indoors. If the blockage is contained and not causing damage, keep waste water away from the affected drain and book a standard daytime appointment in the morning to avoid the extra cost.