Toilet Unblocking London — Same-Hour Emergency
Blocked toilet across London? Engineer dispatched within the hour. Manual clearance from £85, high-pressure jetting £140–£260, full pan replacement £280–£480. Fixed prices confirmed on the call. 30-day guarantee on every clearance.
All works to Building Regs Part H and BS EN 12056-2. Fully insured, WRAS-listed fittings only.
Toilet unblocking in London costs £85–£140 for a manual clearance, £140–£260 for high-pressure water jetting and £180–£320 for a full soil-stack clearance. A leaking pan needing a new wax seal is £85–£165; a full pan replacement is £280–£480. Same-hour dispatch across all London boroughs. Call 0207 046 1363 for fastest response or WhatsApp 07456 975436.
Blocked toilet across London — what we do
A blocked toilet is one of the most common emergency call-outs we run across the 32 London boroughs. The cause is almost always the same: something has been flushed that should not have been, or scale and time have narrowed the bore of an older branch. The fix depends on where the blockage sits — in the trap, in the branch from the WC to the stack, or in the soil stack itself — and on what the pan is made of and how it discharges.
Our engineers dispatch within the hour with the full kit on the van: hand-augers, electric augers, a 3000 psi jetting unit, push-rod CCTV camera, spare pan connectors, WRAS-listed wax seals, flush valves and two complete close-coupled WC bodies for same-visit pan replacement. That kit covers around 95% of toilet-unblocking and toilet-repair scenarios in a single visit, no return trips, no scheduling delay.
Every clearance is worked to Building Regulations Approved Document H and BS EN 12056-2. Every fitting installed is WRAS-listed. Every job is invoiced with before-and-after notes, photos where useful, and a 30-day guarantee on the clearance.
Toilet unblocking cost in London — 2026 fixed prices
Every price below is fixed on the phone before we dispatch — no time-and-materials creep, no surprise extras on arrival. VAT included. Out-of-hours, weekend and bank-holiday call-out is £120 on top of the works price; standard-hours call-out is built in.
| Job | What it covers | Typical cost |
|---|---|---|
| Manual clear (plunger / hand-auger) | Soft blockage in the trap or first metre of the branch — paper, hair, light fat. | £85–£140 |
| High-pressure water jetting | Compacted or recurring blockage in the branch or stack — wipes, scale, root intrusion. | £140–£260 |
| Soil-stack clearance | Vertical stack blocked above or below the pan — multi-floor backup, gurgling on flush. | £180–£320 |
| Wax seal / pan connector replacement | Leak at the base of the toilet, rocking pan, sewage smell — full re-seat with new collar. | £85–£165 |
| Full pan replacement (close-coupled WC) | Cracked pan, broken cistern, scaled siphonic flush — supply and fit standard close-coupled unit. | £280–£480 |
| Foreign object removal | Phones, toys, wipes packs and similar — auger or pan-pull, no chemical strip. | £120–£220 |
| CCTV drain survey | Recurring blockage — push-rod camera to locate fault, written report with photos. | £140–£240 |
| Out-of-hours emergency call-out | Same-hour attendance evenings, weekends and bank holidays across all London boroughs. | £120 call-out + works |
Prices include VAT. Full pricing list on the pricing page.
Call 0207 046 1363 for a fixed quoteWhat we cover
Toilet unblocking is rarely just one job. The pan, the trap, the branch, the stack, the seal, the flush mechanism and the cistern can each be the actual fault — and we diagnose and quote across the lot on the same visit.
Wash-down and siphonic pans
Modern wash-down pans (the standard fit in UK new-builds and refurbs) and older siphonic pans are diagnosed and cleared with the right method — pan-pull on siphonic, jet or auger on wash-down.
Close-coupled and back-to-wall WCs
Cistern, flush valve and pan connector strip-down on close-coupled units; concealed cistern access on back-to-wall and wall-hung installations.
Macerator and Saniflo systems
Macerator blockages on basement and loft-conversion toilets — Saniflo, Sanibroyeur and similar. Most are cleared without unit removal; failed pumps are quoted on the visit.
Branch and soil-stack blockages
Branch pipe from the WC to the stack, and the vertical soil stack itself — cleared from the access point, the rodding eye or the air admittance valve as appropriate.
Sewage smell and leaking base
Failed wax seal, cracked pan connector or vent stack issue — replaced with a new collar, fresh silicone bed and a pressure test.
Foreign object recovery
Phones, toys, hair pieces, wipes packs — recovered with the appropriate auger or by lifting the pan when the object will not pass through the trap.
Slow-flushing and weak-flush toilets
Scaled siphonic flush valves, blocked rim jets, partial blockage in the trap — descaled and flow-tested before sign-off.
Multi-fixture and shared-stack blockages
Where the WC, basin and bath all back up together the fault is in the stack or the underground drain — diagnosed and cleared as one job, not three call-outs.
Recurring blockages — CCTV survey
Repeat blockages get a CCTV survey: a written report with photos, a locator trace if a buried section needs digging up, and a fixed-price remediation quote.
Insurance-grade documentation
Where the blockage caused damage — flooded bathroom, soaked ceiling — invoice, photos and survey report are written up for an insurance claim.
How it works — call to clearance
Call diagnosis (5 minutes)
We ask three questions on the phone: is one toilet blocked or are other fixtures backing up too, when did it start, and is water rising or just slow. That tells us whether it is a trap, a branch or the stack — and what kit the engineer needs on the van.
Same-hour dispatch
Engineer dispatched within the hour across Zone 1–3 and within 90 minutes across the outer boroughs. Live ETA texted to your phone. Out-of-hours, weekend and bank-holiday cover at standard call-out.
On-site assessment and fixed price
Engineer inspects the pan, trap, branch and stack access. Fixed price quoted before any tool is started — no time-and-materials creep, no surprise extras. Card, cash or bank transfer accepted.
Clearance and flow test
Blockage cleared with the right method — plunger, auger, jet or pan-pull. Three full flushes with a dye tab to confirm the trap, branch and stack are running clean. Bathroom left clean.
Written report and 30-day guarantee
Invoice, before-and-after notes and any CCTV stills sent by email the same day. 30-day guarantee on the clearance — if the same blockage returns within 30 days we re-attend at no charge.
Standards we work to
Every clearance, every seal renewal, every pan replacement is sized and tested against the same UK standards a Building Control officer would inspect against. That is what stops a one-off clearance becoming a recurring blockage every six weeks.
Building Regulations Part H — Drainage and Waste Disposal
Sets the minimum standards for sanitary pipework, branch connections, ventilation and access. Branches from a WC must be at least 100 mm internal diameter, with a maximum length and minimum fall set out in the Approved Document. Every blockage we clear is sized against Part H so the fault does not return.
BS EN 12056-2 — Gravity drainage inside buildings
The European standard for sanitary pipework. Defines the four system types (I–IV), branch slope, stack ventilation and the discharge unit method used to size the pipework. We cross-check unusual layouts against EN 12056-2 before recommending stack alterations.
BS 6700 / BS EN 806 — Water supply
Covers the cold-feed side of the cistern, supply valve sizing and the air gap between mains and cistern. Relevant where the slow flush is supply-side rather than waste-side.
Wash-down vs siphonic pans
UK new-builds almost always use wash-down pans (rim-jet plus direct gravity discharge into a P or S trap). Older properties and some imports use siphonic pans where the flush starts a siphon in a second internal chamber. The two pans block and clear differently — we identify the type before deciding on jet, auger or pan-pull.
WRAS approval — fittings and seals
Every pan connector, wax seal and supply valve we install is WRAS-listed. Where a non-WRAS fitting is found on a leaking pan it is replaced as part of the repair so the installation meets the Water Supply (Water Fittings) Regulations 1999.
Real London cases
Victorian terrace, Hackney — recurring wipes blockage
Three-bed Victorian terrace, blockage every six weeks for a year. Jetting cleared the immediate fault in 40 minutes; CCTV survey showed a compacted wipes mass in the 100 mm clay branch where it joined the lateral. Quoted £180 jet + £180 CCTV, ongoing fix £0 — household switched to non-flushable bin disposal and have not blocked since.
New-build flat, Stratford — sewage smell at base
Two-bed flat, sewage smell, no visible leak. Lifted pan, found the original wax seal had been installed with a 6 mm offset onto a plastic flange. Replaced with a WRAS-listed pan connector and fresh silicone bed. £145 total, 35 minutes on site.
HMO, Tower Hamlets — multi-floor stack backup
Six-bedroom HMO. Ground-floor WC overflowed every time first-floor shower drained. Soil stack blocked at the second-floor branch by tenant flushing of cleaning wipes. Stack jetted from the rodding eye on the flat roof. £260, all four bathrooms tested clean before sign-off, full written report for the landlord.
Loft conversion, Camden — Saniflo failure
Loft-conversion ensuite, Sanibroyeur Pro unit not pumping. Diagnosed as a compacted blockage at the macerator blade, not pump failure. Cleared, descaled and tested over four flush cycles. £165 vs. £900 replacement unit — the homeowner had been quoted by another firm for a full unit swap they did not need.
Commercial unit, Soho — broken pan
Restaurant WC, cracked pan, sewage leak onto floor. Out-of-hours call at 23:40 on a Saturday. Pan isolated within 15 minutes, replacement close-coupled WC fitted from van stock by 01:30. £420 supply and fit including out-of-hours call-out. Restaurant trading by lunch service.
Period flat, Kensington — phone in the pan
Toddler dropped a parent's phone in the WC. Pan-pulled, phone recovered intact, wax seal renewed, pan re-bedded with fresh silicone. £155, 50 minutes on site. Phone still working.
Toilet blocked right now? Call us.
Same-hour dispatch across all 32 London boroughs. Fixed price quoted on the phone. Engineer arrives with full van stock — jetter, augers, pan connectors, wax seals and complete replacement WCs.
Areas covered — all 32 London boroughs
Same-hour dispatch across Central London (Zone 1–2) and within 90 minutes across the outer boroughs. Heaviest call volumes from Camden, Westminster, Islington, Hackney, Tower Hamlets, Southwark, Lambeth and Wandsworth.
Frequently asked questions
Why does my toilet keep blocking?
How much does it cost to unblock a toilet in London?
My toilet bowl will not flush — what is wrong?
Why is there a sewage smell coming from my toilet?
What can I actually flush down the toilet?
How quickly can you get to me?
Will high-pressure jetting damage my pipes?
Do you charge a call-out fee?
Is my toilet covered by my insurance for a blockage?
Do you replace toilets as well as unblock them?
Can you clear a macerator toilet (Saniflo)?
What standards do you work to?
Do you cover commercial properties and HMOs?
What if the blockage is in the public sewer not my drain?
Do you offer a guarantee?
Still got a question? Call 0207 046 1363 or WhatsApp 07456 975436 — the duty engineer answers, not a call centre.
Service area
Service area — all London boroughs
Same-hour dispatch across Central London (Zones 1–2) and within 90 minutes across the outer boroughs. Engineers based across North, South, East and West London so the closest van is sent on every call.
Toilet blocked? We are an hour away.
Same-hour dispatch, fixed prices from £85, 30-day guarantee. Call the landline for fastest response — the duty engineer answers, not a call centre.
Fully insured • Building Regs Part H • BS EN 12056-2 • WRAS-listed fittings • 30-day clearance guarantee