Urgent repair
Call to discuss the fault
Wastewater overflowing, several fixtures backing up or your only toilet unusable? Call with the symptoms and postcode for drainage availability.
Call 020 4571 4235Mayfair · Blocked drains & drain unblocking
Outside drain unblocking in London
Outside drain overflowing or wastewater pooling?
Tell us what needs doing. We’ll organise the right help and explain the price.
All London boroughs · Homes, landlords & managed properties · Your area: Brockley
- Direct enquiries
- Clear scope and price
- You approve extra work
- Small repair visits
- From £85 including VAT Call-out, assessment and first-visit labour for a small, straightforward fault where possible.
- Need help urgently?
- Call for availability Tell us your postcode, work required and access arrangements. Sending a form does not book attendance.
For safely accessible faults that can be resolved on the first visit. Parts, materials and further work are quoted separately for your approval. If a first-visit fix isn’t possible, the agreed visit charge still covers the call-out and assessment. We explain the fault and quote any parts, further investigation or larger repair for your approval.
For an overflowing gully or suspected external blockage, describe where the water appears and what was being used inside the property. We help establish access, responsibility and an appropriate investigation or clearance plan.
Start with what you can see
Your repair question, answered
Why do my sink and shower both drain slowly?
Several affected fittings may point to a blockage farther along a shared waste route, rather than two separate traps. Describe which fittings and neighbouring properties are affected. Responsibility for shared or public drainage should be checked before private work is commissioned.
The work, explained
What the visit can include
- Review the affected drain, available safe access and reported symptoms.
- Discuss whether the problem may involve shared or public drainage.
- Carry out agreed clearance and explain any need for camera inspection or repair.
A clearance, camera survey, jetting visit and structural repair are different scopes. We explain the proposed method and price; excavation, lining, specialist equipment and reinstatement are not automatically included in a small-repair visit.
Help us plan your visit
What to include in your enquiry
- Send photos from a safe distance and keep clear of contaminated water.
- Mention whether neighbouring properties are affected.
- Describe gates, garden access and any building-management arrangements.
Choose the closest job
More blocked drains & drain unblocking
Kitchen or bathroom sink draining slowly?Sink unblockingScope, costs & enquiry →
Standing water in the shower tray or bath?Blocked bath & shower drainsScope, costs & enquiry →
Toilet backing up or failing to clear?Toilet unblockingScope, costs & enquiry →
A blockage keeps returning—or you need to understand the drain’s condition?CCTV drain surveysScope, costs & enquiry →
A stubborn drain blockage needs specialist clearance?Drain jettingScope, costs & enquiry →Your visit price, explained
From £85 including VAT for call-out, assessment and labour to fix a small, safely accessible fault on the first visit where possible. We’ll give you the full visit price when you book. Parts and further work need a separate quote and your approval. If the repair needs more work, the visit charge still covers call-out and assessment.
Access, depth, blockage position and equipment required affect the quotation. Sewerage-company responsibility should be checked before private work is instructed.
From enquiry to finished work
- Send the fault or task list and your postcode.
- Agree the scope, price and appointment with Mayfair.
- We arrange the appropriate trade and explain any extra work for your approval.
Workmanship cover, duration and exclusions are set out in the written quotation. Product warranties follow their manufacturer’s terms.
Direct to Mayfair · No chat required
Request your service quote.
Tell us what’s happening and where. We’ll help you work out the next step and what it costs.
No account needed. No payment to send an enquiry.
- Your details
- Review and send
- Request status
This is not an emergency response service. Do not wait for an online reply if there is an immediate risk to people or property.
How quotes and orders work →Help us plan your repair
Outside drain overflowing or wastewater pooling?
Send photos from a safe distance and keep clear of contaminated water.
London coverage
Blocked drains & drain unblocking across London
We serve all 32 London boroughs and the City of London. Choose an area to see repair options, visit preparation and a direct enquiry route.
Example work, explained
Investigating a drain that keeps blocking
- The problem
- A blockage returns after clearance, or several outlets drain slowly. Repeating the same clearance may leave an underlying defect unexplained.
- The work involved
- Establish the accessible drain route and who is responsible, then inspect the agreed runs with a camera where conditions allow. Any clearance needed first is a separate part of the scope.
- Checks and next steps
- Review the recorded findings, explain any visible obstruction or defect and set out the next step. A camera survey does not itself repair a damaged pipe.
Need similar work at your Brockley property? Tell us the symptoms and access arrangements.
Search by neighbourhood, borough or postcode. August 2026 ONS data gives district-level suggestions, including when you enter a full postcode. Districts can cross boroughs; send your street and full postcode when booking.
Neighbourhood repair guides
Blocked drains & drain unblocking in Clapham →Blocked drains & drain unblocking in Balham →Blocked drains & drain unblocking in Tooting →Blocked drains & drain unblocking in Hammersmith →Blocked drains & drain unblocking in Kensington →Blocked drains & drain unblocking in South Kensington →Blocked drains & drain unblocking in Knightsbridge →Blocked drains & drain unblocking in Shoreditch →Blocked drains & drain unblocking in Dalston →Blocked drains & drain unblocking in Brixton →Blocked drains & drain unblocking in Greenwich →Blocked drains & drain unblocking in Woolwich →Blocked drains & drain unblocking in Walthamstow →Blocked drains & drain unblocking in Leyton →Blocked drains & drain unblocking in Wembley →Blocked drains & drain unblocking in Finchley →Blocked drains & drain unblocking in Ilford →Blocked drains & drain unblocking in Deptford →Blocked drains & drain unblocking in Blackheath →Blocked drains & drain unblocking in Brockley →Blocked drains & drain unblocking in Angel →Blocked drains & drain unblocking in Highbury →Blocked drains & drain unblocking in Soho →Blocked drains & drain unblocking in Pimlico →Blocked drains & drain unblocking in Camden Town →Blocked drains & drain unblocking in Muswell Hill →Blocked drains & drain unblocking in Ealing Broadway →Blocked drains & drain unblocking in Acton →Blocked drains & drain unblocking in Twickenham →Blocked drains & drain unblocking in Surbiton →Blocked drains & drain unblocking in Bermondsey →Blocked drains & drain unblocking in Dulwich →Blocked drains & drain unblocking in Fulham →Blocked drains & drain unblocking in Shepherd's Bush →Blocked drains & drain unblocking in Hampstead →Blocked drains & drain unblocking in Chiswick →Blocked drains & drain unblocking in Wimbledon →Blocked drains & drain unblocking in Richmond →Blocked drains & drain unblocking in Battersea →Blocked drains & drain unblocking in Putney →Blocked drains & drain unblocking in Canary Wharf →Blocked drains & drain unblocking in Stratford →Blocked drains & drain unblocking in Mayfair →Blocked drains & drain unblocking in Marylebone →Blocked drains & drain unblocking in Chelsea →Blocked drains & drain unblocking in Notting Hill →Blocked drains & drain unblocking in Belgravia →
London postal districts can overlap borough and county boundaries. London coverage includes London addresses using outer postal prefixes; it does not mean every address in the surrounding counties is included.
Questions about blocked drains & drain unblocking
Can you clear a drain shared with my neighbours?
The responsible party and access must be established first. Shared sewers may be maintained by the sewerage company. We can discuss the symptoms and appropriate next route rather than assume private clearance is required.
Is the blocked drain my responsibility?
It depends on where the blockage is and which properties the pipe serves. A public or shared sewer may be the sewerage company’s responsibility. Describe the affected properties and check the responsible company’s guidance before paying for private work.
How much does outside drain unblocking cost?
From £85 including VAT for call-out, assessment and labour to fix a small, safely accessible fault on the first visit where possible. We’ll give you the full visit price when you book. Parts and further work need a separate quote and your approval. If the repair needs more work, the visit charge still covers call-out and assessment.
Do you cover all of London?
Yes. We cover all 32 London boroughs and the City of London. Select a borough below or include your full postcode when requesting a quote. The appointment depends on the required work and available specialist.