Drain Unblocking in North West London
Blocked sink, bath, shower or outside drain? Marvel Plumbing's qualified local engineers clear blocked drains fast across North West London — using drain rods, cable machines, jetting and CCTV surveys, with a clear quote before any work begins.
Fast, professional drain unblocking across North West London
A blocked sink or drain brings a kitchen or bathroom to a standstill — standing water, slow drainage and unpleasant smells. Marvel Plumbing provides fast, professional drain unblocking across North West London, clearing blocked sinks, baths, showers and external drains for homeowners, landlords, tenants and commercial premises.
Whether it's a blocked kitchen sink, a slow-draining shower, or a recurring problem across several fittings, our local engineers locate the cause and clear it properly — not just shift it further down the pipe. We unblock drains across Harrow, Wembley, Camden, Kilburn and the wider North West London area.
Blocked toilet specifically? See our toilet unblocking North West London service. Dealing with a blocked drain now? Call Marvel Plumbing to arrange a visit.
Why choose Marvel Plumbing?
- Experienced local engineers
- Drain rods, cable machines & jetting
- CCTV drain survey for recurring blockages
- Fully insured
- Domestic, rental & commercial
- Serving North West London
Blocked drains we clear every week
We attend all types of drain and sink blockage across North West London — from a single slow sink to recurring problems affecting several fittings.
Sink Unblocking
Blocked sinks are one of the most common problems we attend. Kitchen sinks are usually blocked by grease, fat, food waste and coffee grounds, while bathroom basins are typically affected by hair, soap and product residue. We clear the blockage and identify why it formed.
Blocked Baths & Showers
Slow-draining baths and showers are almost always caused by hair and soap scum collecting in the trap and waste pipe. We clear the obstruction and get the water flowing again. Our guide on unclogging bathtub drains covers the basics worth trying first.
External & Underground Drains
Blockages aren't always inside the property. We clear external gullies, drain runs and underground blockages, using drain rods, jetting or a CCTV survey where the cause is deeper in the system.
Recurring & Multiple Blockages
If a drain keeps blocking, or more than one fitting is affected at the same time, the problem is usually in the shared or main drain rather than a single sink. We investigate the underlying cause — often with a CCTV drain survey — rather than repeating temporary fixes.
What usually causes blocked drains
Most drain blockages we attend across North West London come down to a handful of recurring causes.
- Grease, fat and cooking oil in kitchen drains
- Food waste and coffee grounds
- Hair and soap in bathroom drains
- Foreign objects washed into the drain
- Limescale narrowing older pipework
- Tree-root ingress in external drains
- Collapsed or displaced underground pipework
- Shared or aged drainage in converted properties
For more on preventing everyday plumbing faults, see our guide to common plumbing problems.
How we unblock drains
Our engineers work through a clear sequence, escalating only as needed and explaining any additional work before carrying it out.
Standard Unblocking
Most blockages are cleared on the first visit using plungers, hand tools and drain rods — covering attendance, assessment and clearing the blockage where standard methods are effective.
Mechanical Equipment
Where standard methods aren't enough, we use a cable machine (drain snake) or high-pressure water jetting to clear more stubborn obstructions. We explain this before proceeding.
CCTV Drain Survey
For recurring blockages or where an underlying drainage fault is suspected, a CCTV drain survey lets us see inside the pipework, pinpoint the cause and recommend the right solution rather than guessing.
Our drain unblocking process, from first call to final test
Get In Touch
Call or message with details — photos or video via WhatsApp help us assess the situation faster.
Assess & Locate
On arrival, we assess the affected sink, drain or pipework to determine where the blockage is and what's causing it.
Clear the Blockage
We clear the blockage using the appropriate method, escalating from standard to mechanical only if required — explained and agreed beforehand.
Test
We test the flow to confirm the drain is running freely.
Advise on Prevention
Where useful, we explain what caused the blockage and how to avoid it recurring.
Proper clearance, done properly
Local North West London Engineers
We work across North West London every week and understand the drainage systems found in the area's older terraces, converted flats and modern developments — from Harrow and Wembley to Camden and Hampstead. Converted properties in particular often share drainage, which can make blockages more involved to trace.
Proper Clearance, Not a Quick Shift
We clear blockages fully and check the cause, rather than pushing the obstruction further along to return a week later.
The Right Equipment
From drain rods to a cable machine, jetting and CCTV surveys, we use the right method for the blockage rather than forcing a one-size-fits-all approach.
Transparent Communication
Any escalation to mechanical equipment or a CCTV survey is explained and agreed before we proceed — no surprises.
Domestic, Rental & Commercial
We support homeowners, landlords, letting agents, property managers and commercial premises across North West London.
Frequently asked questions
Why does my sink or drain keep blocking?
Can you clear outside and underground drains?
Do you use jetting and CCTV drain surveys?
My sink and toilet are blocked at the same time — what does that mean?
What should I avoid putting down the sink?
Do you unblock drains in rental and commercial properties?
What areas do you cover for drain unblocking?
Genuinely local across North West London
- Harrow
- Wembley
- Barnet
- Enfield
- Kilburn
- West Hampstead
- Cricklewood
- Hampstead
- Golders Green
- Hendon
- Willesden
- Swiss Cottage
- Queen's Park
- St John's Wood
- Camden
- Kentish Town
- Brondesbury
- Islington
We regularly work near Brent Cross, Hampstead Heath, Wembley Stadium, Camden Market and Queen's Park Station, along with the wider Harrow, Wembley, Barnet, Enfield, Kilburn, West Hampstead, Cricklewood, Hampstead, Golders Green, Hendon, Willesden, Swiss Cottage, Queen's Park, St John's Wood, Camden, Kentish Town, Brondesbury and Islington areas.
Blocked toilet rather than a sink or drain? See our toilet unblocking North West London service, or explore our wider plumbing services across North West London for residential and small commercial properties.
Blocked drain? Need a local plumber fast?
Whether it's a blocked kitchen sink, a slow-draining shower, or a recurring drainage problem, Marvel Plumbing's local engineers can help — serving homeowners, landlords, property managers and commercial customers across North West London.
- Fully insured local engineers
- Free written quotations
- Jetting & CCTV surveys available
- Trusted across North West London
