Unblocking Toilets, Sinks and Urinals in London

Silver Saints offer a local unblocking service of toilets, sinks and urinals.

4.9 stars, 1,000+ reviews | Fixed Prices, Pay Once Cleared | Fully Supported Service | Same or Next Day Available | Mon to Sat 8am to 5pm | Book Online 24/7

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Specific arrival times. We confirm a one-hour arrival window on every booking, so there is no waiting in all day.

How much does it cost to unblock a toilet, sink or urinal in London?

Unblocking is charged at a fixed price by fixture, and you pay only once the blockage is successfully cleared, so there is no charge for an attempt that does not work.

• Unblock a toilet: £85 + VAT, payable only once the toilet is cleared
• Unblock a sink or basin: £90 + VAT, payable only once the sink or basin is cleared
• Unblock a urinal: £100 + VAT, payable only once the urinal is cleared
• Saturday appointments charged at the same weekday rate
• No separate call-out fee

The fixed price is the whole point of this service: you know the figure before we arrive and you pay it only when the fixture is draining freely again. The reason a blocked toilet is priced differently from a sink is the method and the access. A toilet blockage usually sits in the pan trap or the first stretch of soil pipe and is cleared with a closet auger worked through the pan, where a sink blockage is most often the trap or the waste run and is cleared by stripping the trap or rodding the waste. A urinal carries the highest fixed price because commercial urinals scale up with uric salts and limescale that need more work to clear than a domestic trap. A typical domestic toilet or sink clearance is done within the visit at the fixed price, and if the blockage turns out to be a collapsed or shared drain beyond the property, we tell you straight away rather than charging for work that needs a different approach.

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Why London chooses Silver Saints for unblocking

Here is why over 1,000 London customers have booked Silver Saints for unblocking toilets, sinks and urinals.

• 4.9 stars from over 1,000 Google reviews
• 5 stars on Trustpilot and Checkatrade
• £5 million public liability insurance
• Operating across London since May 2008
• All work guaranteed against faulty workmanship, with a 12-month guarantee on labour and parts we supply
• A specific one-hour arrival window confirmed on every booking

Ready to book? We can usually come today or tomorrow, subject to availability.

Call 0207 0999 199 Book Online Now

How we clear a blocked toilet

A blocked toilet shows as water rising too high on the flush, slow draining, repeated partial flushes, or gurgling and near-overflows, and we clear it for a fixed £85 + VAT payable only once it is running again. We first work out whether the blockage is in the pan trap itself or further down the soil pipe, because that changes the method. A pan blockage is cleared with a closet auger fed through the trap so the bowl and ceramic are not damaged, never by forcing it, and a blockage further down the soil stack is rodded from the most suitable access point. We then flush through several times to confirm the water clears at full speed, because a toilet that drains slowly on the first flush often blocks again within days.

How we clear a blocked sink or basin

A blocked kitchen or bathroom sink shows as slow draining, standing water, bad smells from the plughole, or gurgling when the tap runs, and we clear it for a fixed £90 + VAT payable only once it drains freely. Most sink blockages are in the trap directly under the plughole or in the waste run behind it, and the fat, food and soap in a kitchen trap behaves differently from the hair and toothpaste in a bathroom basin. We strip and clean the trap where that is the cause, or rod the waste run where the blockage is further along, then run the tap hard to confirm full flow. Stripping the trap properly also clears the smell that a chemical drain product only masks.

How we clear a blocked urinal

A blocked urinal, most common in commercial and office premises, shows as slow draining, pooling in the bowl, strong odours and backing up, and we clear it for a fixed £100 + VAT payable only once normal flow is restored. Urinals block differently from domestic fixtures because uric salts and limescale build up hard inside the trap and waste over time, which is why the fixed price is higher: it takes more to clear a scaled urinal trap than a domestic sink. We clear the scale and debris, restore the flow, and advise on what keeps it clear, which matters in offices and venues where a blocked urinal takes a facility out of use.

Unblocking across London property and premises types

London building stock shapes how a blockage clears. In Victorian and Edwardian terraces across Wandsworth, Hackney, Islington and Camden the soil and waste pipework is often original and runs to shared or rear drains, so a blockage can sit beyond the fixture itself. In Kensington, Chelsea and Marylebone mansion blocks the waste stacks are shared between flats, which means a blockage on a lower floor can show as a backup higher up, and that has to be diagnosed rather than just plunged. In 1960s and 1970s blocks the pipework is boxed in and access matters. In modern new-build flats around Nine Elms, Battersea and Canary Wharf the runs are tighter and often feed a shared stack or a pumped system. In commercial premises across the City and West End, urinals and high-use WCs scale and block faster than domestic fixtures. Telling us the fixture and the building type when you book means we arrive with the right method.

The expert detail that clears it for good

Three things separate a blockage cleared properly from one that comes back next week. First, finding where the blockage actually sits: a toilet that will not clear with an auger through the pan usually has the obstruction further down the soil stack, and clearing the wrong point wastes the visit, so we locate it before we work. Second, the right tool for the fixture: a closet auger for a pan, trap removal for a sink, and proper descaling for a urinal, rather than a one-size plunger that just shifts the problem. Third, knowing when it is not a fixture blockage at all: if several fixtures back up together, or the same drain blocks repeatedly, the issue is the shared drain or soil stack beyond the property, and we will tell you that honestly rather than take a fixed fee for a clearance that will not hold. We test at full flow before we leave.

Combine unblocking with other plumbing jobs in one visit

Because a Silver Saint is multi-trade, an unblocking visit is a good moment to sort related plumbing jobs in the same appointment and avoid a second call-out. If a toilet keeps blocking because of an underlying fault rather than debris, that becomes toilet repairs on the same visit. Where a macerator-based toilet keeps clogging, that is a different job we cover under Saniflo and macerator repairs. And if clearing a blockage reveals a leak at the trap or waste joint, we can move straight into sourcing and curing leaks. Mention everything when you book and we will send a Saint equipped for the lot.

Unblocking FAQs

Can you unblock a toilet or sink today in London?

Silver Saints usually offer same-day or next-day unblocking appointments across London, subject to availability, and you can call 0207 0999 199 or book online to secure the earliest slot.

How much does it cost to unblock a toilet in London?

Silver Saints unblock a toilet for a fixed price of £85 + VAT, payable only once the blocked toilet is successfully cleared, with Saturday appointments charged at the same weekday rate.

How much does it cost to unblock a sink or basin in London?

Silver Saints unblock a sink or basin for a fixed price of £90 + VAT, payable only once the blocked sink or basin is successfully cleared.

How much does it cost to unblock a urinal in London?

Silver Saints unblock a urinal for a fixed price of £100 + VAT, payable only once the blocked urinal is successfully cleared.

Do I pay if you cannot clear the blockage?

The Silver Saints unblocking price is payable only once the blockage is successfully cleared, so there is no charge for an unblocking attempt that does not clear the fixture.

Why does my toilet keep blocking after it is cleared?

A toilet that keeps blocking after clearance often has an underlying cause such as a partial obstruction further down the soil pipe or a shared drain issue beyond the property, which Silver Saints will identify and explain rather than simply clearing it again.

Do you unblock commercial urinals and office washrooms?

Silver Saints unblock commercial urinals and high-use office washroom fixtures across London, descaling the uric salt and limescale build-up that causes most commercial urinal blockages.

Which London areas do you cover for unblocking?

Silver Saints cover every London borough for unblocking toilets, sinks and urinals, including Westminster, Kensington and Chelsea, Camden, Islington, Wandsworth and Hackney, plus the surrounding TW, KT, CR and BR postcode areas.

Is your unblocking work guaranteed and insured?

All unblocking work by Silver Saints is insured and carries a 12-month guarantee on labour and on any parts supplied.

Customer Reviews

Read what our customers say about our Silver Service on the UK's leading review platforms.

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• Yell Customer Reviews

Unblocking toilets, sinks and urinals in London, in short

Silver Saints provide fixed-price unblocking of toilets, sinks, basins and urinals across every London borough, clearing pan and soil-pipe toilet blockages with a closet auger, stripping and rodding blocked sink and basin traps and waste runs, and descaling blocked commercial urinals, in Victorian and Edwardian terraces, period mansion blocks, converted flats, concrete builds, modern new builds and commercial premises, plus the TW, KT, CR and BR areas. A toilet is £85 + VAT, a sink or basin £90 + VAT and a urinal £100 + VAT, each payable only once the fixture is successfully cleared, appointments run Monday to Saturday from 8am to 5pm with same-day and next-day slots usually available, work is delivered as a Fully Supported Service with a one-hour arrival window, and the team holds a 4.9-star rating from over 1,000 Google reviews. To book, call 0207 0999 199 or use https://bookings.silversaints.com.

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Blocked kitchen and bathroom sinks often build up over time and can start draining slowly before they stop altogether. We clear sink and basin blockages and get the waste running freely again.

Common sink blockage signs

• Slow draining or standing water
• Bad smells from the plughole
• Gurgling or backing up when you run the tap

Price

• £90 + VAT - payable only once we successfully clear the blocked sink or basin.

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Blocked urinals are common in commercial premises and can cause bad smells and overflow if left unresolved. We clear urinal blockages and restore normal flow.

Common urinal blockage signs

• Slow draining or pooling in the bowl
• Strong odours
• Overflowing or persistent backing up

Price

• £100 + VAT - payable only once we successfully clear the blocked urinal.

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