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Updated 2 October 2026

Blocked Drains, Toilets & Sinks Northampton

Drain backing up or toilet will not flush? Send a request and say where the blockage is, because that shapes the fix.

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Blocked Drains & Toilets in Northampton

A blocked drain usually comes from fat, wipes or something stuck in the pipe. Work out whether the drain is yours or the water company's before you pay for a repair. Send a request, then ask the engineer to talk you through the options, since the right fix depends on the cause.

Why drains block

Most blockages start with what goes down the pipe. Thames Water says only pee, poo and toilet paper should go down the toilet. Wet wipes still cause many blockages, even ones sold as flushable.

Fat and grease cause trouble in kitchens. Let them cool, then put them in the bin, because hot water and washing-up liquid do not stop the build-up. Roots, leaves and silt can block outdoor drains.

Our guide on why a drain blocks and what to try first lists the signs. Stop when water will not move at all, since forcing it can push the blockage further along.

Is the drain yours or the water company's?

A private drain that serves only your home is normally yours to fix, says Citizens Advice. The pipe beyond your boundary and the public sewer belong to the water company, while shared private sewers belong to the owners who use them.

Many private sewers and lateral drains passed to the water companies on 1 October 2011. Some private sewers still exist, so check with your sewerage company. In much of Northamptonshire that is Anglian Water, while other areas have a different company.

Our guide explains who pays for a blocked drain. A camera can also show where the fault sits, because it records the pipe from inside, as the CCTV drain survey page explains.

What unblocking costs

Drain unblocking usually costs £80 to £250 outside London, says Fantastic Services. Precise Drainage gives £80 to £150 for a minor blockage and £150 to £300 for a moderate one. These are guides, not our prices, although they show the usual range.

Send a request for an exact quote. The price depends on the blockage and how easy the drain is to reach, although the guides above show the usual range.

Where we cover

We cover blocked drains across Northampton and towns within 30 miles, although each town page adds local detail. See the pages for blocked drains in Kettering, blocked drains in Rushden, blocked drains in Wellingborough and blocked drains in Daventry.

Nene Valley towns such as Higham Ferrers plumbers and plumbers in Irthlingborough have local pages too, while our guide to blocked drains in the Nene Valley adds more detail. Our full list of areas has the rest.

What This Service Covers

  • Blocked toilets, sinks, baths and showers
  • Outdoor and underground drains
  • Methods such as rodding or jetting, chosen to suit the blockage
  • Camera inspection if the cause is unclear
  • Advice on whether the drain is private or public
  • Tips to stop the blockage coming back

How It Works

1

Describe the blockage

Say which drain is blocked and what you see. Mention whether neighbours have the same problem, since that points to a shared sewer.

2

Your request is passed on

Your request goes to an engineer, who can get back to you with next steps. Tell us if water is backing up into the house, because that changes how urgent it is.

3

Clear the blockage

The engineer picks a method to suit the blockage. Ask for the price before work starts, because the method affects the cost.

4

Check the flow

The engineer runs water to see that it drains. Ask for advice on stopping a repeat, because prevention costs less.

Frequently Asked Questions

What causes most blocked drains?
Fat and grease in kitchens, hair and soap in bathrooms, and wipes in toilets. Outdoors, leaves, silt and roots are common causes. Thames Water says only pee, poo and toilet paper should go down the toilet.
Can I clear a blockage myself?
A plunger can clear a minor blocked sink. If water will not move at all, or the problem keeps returning, the blockage is probably further down the line. Stop and ask for help.
What if the blockage is in the street?
A public sewer is the water company's job, not yours. In much of Northamptonshire that is Anglian Water, but check with your sewerage company. Report the blockage to them directly.
How do I know if it is my drain or a shared sewer?
A drain serving only your home is normally yours, says Citizens Advice. If neighbours have blocked drains too, it may be a shared sewer, so report it to your sewerage company.
How much does drain unblocking cost?
Fantastic Services gives £80 to £250 outside London. Precise Drainage gives £80 to £150 for minor blockages and £150 to £300 for moderate ones. These are guides, not our prices.
How can I stop drains blocking?
Let fat cool and bin it, and never flush wipes, nappies or cotton wool. Fit a hair catcher over the plug hole, and keep outdoor gullies clear of leaves.

Blocked Drains & Toilets by Town

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