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: Feltham High Street
- 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.
24/7 blocked drains & toilets across London
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.
Speak directly to Mayfair
Get your free quote.
Get a free quote for Outside drain unblocking in Feltham High Street. Tell us the problem and we’ll contact you about the work and price.
Free quote. No obligation. No account needed.
Requesting a quote is free. If the fault needs an on-site diagnosis, we explain the visit charge before you book. Repairs, call-outs and inspections are chargeable.
For an active emergency, call our 24/7 line on 020 4571 4235. This form does not dispatch an engineer. For immediate danger to people, call 999.
How your repair quote worksHelp 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 Feltham High Street property? Tell us the symptoms and access arrangements.
Use a borough, local area or the first part of a postcode. Choose a result for service details and a quote.
About neighbourhoods and postcode matching
August 2026 ONS postcode data identifies boroughs sharing an outward district. Named centres use London Plan references; neighbourhood postcode examples use local address sources. Neither defines an exact neighbourhood boundary. Even a full postcode entered here is matched only by its first part.
Where a dedicated local service guide is available, we link to it. Other places lead to the relevant borough guide with your selected area carried into the enquiry. Your full repair address is needed when arranging attendance.
Browse London boroughs and local areasOpen a group to find your borough or neighbourhood
City of London7 local areas
City of Westminster21 local areas
View City of Westminster coverage
- Baker Street (part)
- Belgravia
- Covent Garden/ Strand
- Edgware Road South
- Edgware Road/ Church Street
- Fitzrovia
- Harrow Road
- Knightsbridge
- Marylebone
- Marylebone High Street
- Marylebone Road
- Mayfair
- Piccadilly Circus
- Pimlico
- Praed Street/ Paddington
- Queensway/ Westbourne Grove
- Soho
- St John's Wood
- Victoria Street
- Warwick Way/ Tachbrook Street
- West End
Barking and Dagenham5 local areas
Barnet17 local areas
Bexley5 local areas
Brent15 local areas
Bromley8 local areas
Camden15 local areas
Croydon11 local areas
Ealing8 local areas
Enfield6 local areas
Greenwich10 local areas
Hackney7 local areas
Hammersmith & Fulham3 local areas
Haringey9 local areas
Harrow13 local areas
Havering7 local areas
Hillingdon6 local areas
Hounslow4 local areas
Islington6 local areas
Kensington and Chelsea15 local areas
Kingston upon Thames4 local areas
Lambeth13 local areas
Lewisham10 local areas
Merton5 local areas
Newham6 local areas
Redbridge7 local areas
Richmond upon Thames5 local areas
Southwark10 local areas
Sutton9 local areas
Tower Hamlets11 local areas
Waltham Forest8 local areas
Local service guides and related borough coverage. Named centres are drawn from the London Plan town-centre network, with council references for additional places. A centre, neighbourhood and postcode district can have different boundaries.
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.