Skip to content

24/7 Emergencies

4.7/5 on Google
On Demand Plumbing & Heating
Blocked Drains — On Demand
Blocked DrainsPart of OnDemand Drainage

Blocked Drains in Hertfordshire & London

From slow sinks to overflowing gullies — cleared properly.

Call 07538 144040Request a Free Quote
Overview

From slow sinks to overflowing gullies — cleared properly.

Blocked drains only get worse. We clear internal and external blockages — sinks, showers, gullies and downpipes — and identify what caused them so they don’t come straight back.

Fast response across Hertfordshire and London, 24/7 for genuine emergencies.

Common problems we solve

  • Sink or shower draining slowly
  • Outside drain or gully overflowing
  • Bad smells from plugholes
  • Gurgling pipes
  • Fat, wipes or scale build-up
  • Repeated seasonal blockages

Why choose us for this

  • Internal and external drains covered
  • Professional rodding and clearance equipment
  • Cause identified — not just symptoms cleared
  • Prevention advice that actually helps

What we cover

Internal blockages

Sinks, baths, showers and appliance wastes.

External drains & gullies

Outside blockages cleared at the source.

Preventative clearing

Planned maintenance for problem drains.

Recent work

Related jobs we’ve handled

Blocked outside drain cleared — Rodded and cleared the blockage, then flushed the run and identified the cause.Plumbing

Blocked outside drain cleared

Problem
An overflowing external gully backing up after heavy rain.
Work completed
Rodded and cleared the blockage, then flushed the run and identified the cause.
Outcome
Drain flowing freely with advice to prevent repeats.
Need this fixed? Call now
Lead water main replaced — Replaced the lead main with modern MDPE pipework with minimal excavation.Plumbing

Lead water main replaced

Problem
An older property with a lead supply pipe and poor incoming pressure.
Work completed
Replaced the lead main with modern MDPE pipework with minimal excavation.
Outcome
Healthier water and noticeably better pressure.
Need this fixed? Call now
How it works

Our process, step by step

  1. 1

    Book your service

    Call, WhatsApp or send the form. For emergencies we answer 24/7, Monday to Sunday.

  2. 2

    Set the appointment

    We agree a time that suits you and turn up when we say we will — across Hertfordshire and London.

  3. 3

    Assessment & clear quote

    An engineer assesses the job properly and explains your options with transparent pricing before work begins.

  4. 4

    Problem solved

    Quality workmanship using the latest methods and equipment, carried out to all regulations.

  5. 5

    Testing & tidy handover

    We test everything, clean up after ourselves and give you honest aftercare advice.

Good to know

Common questions

Explore more

Related services

Blocked ToiletsKitchen PlumbingEmergency

Need a plumber or heating engineer today?

Call On Demand for emergency support, repairs, maintenance and installations across West and Central London.

Call 07538 144040 Request a Quote Emergency Help

+44 7538 144040 · Available 24/7 · Hertfordshire & London