FS Group engineer in hi-vis clearing a drain by the road

Drainage services in East London

FS Group provides drainage services across East London, from Hackney and Bow out to Walthamstow, Ilford and Dagenham. Our engineers clear blocked drains on shared terrace runs, tower-block stacks and estates, then tell you the cause. The phone is answered around the clock, and the rate is agreed before anyone sets off.

  • Available 24/7, 365 days
  • Prices from £55.00 + VAT
  • 2-hour emergency response
  • 6-month guarantee

Family-run since 1998

On call day and night

Call 0800 689 3497

Trusted by homeowners, landlords and businesses across London

Why FS Group

Drain help for terraced rows, tower blocks and estates

Our engineers work from Hackney and Tower Hamlets out to Walthamstow, Ilford and Dagenham. Terraced streets in Leyton and Forest Gate often share a single run. Estates in Barking and Dagenham have long communal drains. Around Stratford, newer blocks are looked after by managing agents, and we work with them directly.

No call-out feeNo ULEZ chargeNo emergency premiumFixed-price quotes6-month guarantee, T&Cs applyFamily-run since 1998
Cheap drain unblockingFrom £55.00 + VAT

A standard weekday unblock, 8am to 6pm, is charged in half-hour blocks. The help desk gives the rate before an engineer is sent.

See all our rates

Customers on how the visit went

4.9
★★★★★
Google rating
★★★★★
E17

Amazing service from Felix in E17. Identified the problem and came back to advise on the best course of action for the repair when my contractors were working on the garden. Even got stuck in with the work when he didn't have to!

G
Gus T.
Drain fault, repair advice · Google
★★★★★
Walthamstow

Second time I’ve used FS excellent service and advice. John, Walthamstow

J
John
Repeat customer · Reviews.co.uk
★★★★★
Gants Hill

Harry attended our property in Gants Hill for water leak under the cooker area. He investigated the matter very patiently to get to the root cause and resealed the areas where there was gaps and traces of leak. He also talked us through all his plans and closed the job with full satisfaction.

M
Mr A.
Leak under the cooker · Reviews.co.uk
★★★★★

I contacted FS group online and received an immediate response and appointment to look at my blocked toilet. I didn't get the name of the engineer who visited but despite this he was polite and straight away got to work to identify the problem.

J
Jacqui C.
Blocked toilet · Google
★★★★★

Excellent service. I called FS because of a blocked drain on Saturday afternoon. The office explained how much it would cost and James came round a short while later. He was excellent and professional. And ofcourse unblocked my drain.

N
Nadia
Drain unblocking · Google
★★★★★

Found them through Google and I was a bit sceptical about the amount of 5-star reviews. However, they were on time, efficient, proposed the most cost efficient solution and unblocked the drain at a very reasonable cost without trying to get more money out of me. Well done, will use again!

G
George F.
Drain unblocking · Google

Where we work

Areas we cover in East and North East London

Tap Leyton, Ilford, Bow or any other place to see its postcode and who clears its gullies.

Barking and Dagenham

Can't see your road? Ring with an E, IG or RM postcode to check with the help desk.

More postcodes we cover

E1Whitechapel, Shoreditch, Aldgate, Stepney, Spitalfields, Shadwell, LimehouseE1WWapping, St Katharine DocksE2Bethnal Green, ShoreditchE3Bow, Bromley-by-Bow, Old FordE4Chingford, Highams ParkE5Clapton, Upper Clapton, Lower ClaptonE6East Ham, BecktonE7Forest Gate, Upton ParkE8Dalston, Hackney CentralE9Homerton, Hackney Wick, South HackneyE10LeytonE11Leytonstone, WansteadE12Manor ParkE13PlaistowE14Poplar, Isle of Dogs, Canary WharfE15Stratford, West HamE16Victoria Docks, North Woolwich, Custom HouseE17WalthamstowE18South WoodfordE20Olympic Park, Stratford

Drain ownership

Who looks after which drain

What you own
Any pipe that drains just your property and stays inside your boundary is yours.
Shared and public
Once a Walthamstow back run serves more than one house, it is a shared drain. Those and the sewers passed to Thames Water in October 2011.
Gullies on the road
Waltham Forest, Redbridge, Newham, Hackney, Tower Hamlets or Barking and Dagenham council clears its own road gullies. Transport for London clears red route ones.
E, IG and RM8 to RM10 postcodes

Most East London streets are Victorian terraces, tower blocks or 1920s and 1930s estates. Each one blocks in its own way.

Who we work for

Homes, landlords and businesses

Families and renters

Whether it is a Becontree Estate home or a Forest Gate terrace, the rate comes before the engineer does.

Block managers

Drains under towers in Poplar and Canary Wharf can be filmed by CCTV. Each survey job finishes with a written report.

About CCTV surveys

Food businesses

Takeaways on High Street North can book drain work evenings, overnight or at weekends. A Priority Account adds faster response and contract pricing.

About Priority Accounts

Drainage services we carry out

Any of these can be booked in one call, from a Bow flat to a Chingford garden. Not sure what you need? Explain the symptoms and we choose.
Need a plumber in East London?

How it works

Three steps to a working drain

1

Get in touch

Phone 0800 689 3497, answered around the clock, or leave details for a callback within 15 minutes.

2

Rate confirmed

You are given the rate first. Only then does an engineer set off.

3

Fixed and guaranteed

With the drain running clear, our workmanship is covered for six months. T&Cs apply.

CHAS accredited contractorSafeContractor approvedWater Jetting Association member 2026Constructionline registered

What we see most

The drain problems we fix most often

Victorian terraces

Streets in Walthamstow, Leyton and Forest Gate often share one drain run. A blockage at one end backs up into gardens along the row.

Blocks of flats

In Tower Hamlets and Newham, a blocked stack in a tall block can flood the lowest flats. We clear the stack and the drain below it.

Interwar semis and estates

Chingford, Gants Hill and the Becontree Estate are mostly 1920s and 1930s homes on their original clay pipes. Roots and shifting joints cause repeat blocks.

Takeaway fat

Takeaways around Stratford and East Ham produce plenty of fat, which builds a hard crust inside the drains.

Roots near the forest

Gardens near Epping Forest in Chingford and Woodford see tree roots work into old clay joints.

Overflowing yard gullies

Back yards in Walthamstow and Leyton fill gullies with leaves and silt, so rainwater backs up to the door.

What people in Walthamstow and Ilford ask us

Do you cover my part of East London?
Yes. We cover every East and North East London borough, from Hackney and Tower Hamlets to Waltham Forest, Redbridge, Newham and Barking and Dagenham. Each one is on the postcode card above. Quote your postcode and the booking is made before you hang up.
Our whole terrace has a smell from the drains. What should we do?
Call once and tell us which houses are affected. A shared run behind a terrace usually needs one visit, not one per house. A camera check shows where the blockage sits. If it is in the shared section beyond your boundaries, Thames Water may clear it at no cost. Our report helps you report it to them.
The road gully outside is overflowing. Is that you?
A gully in the road belongs to the council, or to Transport for London on a red route. Report it to them. If water is coming back up through the gully in your own yard or garden, that is a drain we can clear. Not sure which it is? Describe it to the help desk and they will tell you.
How long does a blocked drain take to clear?
A simple blockage is often cleared within an hour of the engineer arriving. You pay by the half hour, so a quick job costs less. Roots, set fat or a broken pipe take longer, and the engineer tells you before going further. Every job ends with photos and a short written report.
What will clearing a blocked drain under a Victorian terrace in East London cost?
Standard unblocking is from £55.00 + VAT per half hour, Monday to Friday from 8am until 6pm. A toilet or sink often takes no longer than that. Out-of-hours work and jetting are priced differently, and you hear the rate first. Every rate is listed on our rates page.
How soon can someone get to a Stratford block?
When it is an emergency, we aim to get an engineer to you within two hours. The nearest van's position fixes the exact time, which you get on the call. For a blocked stack in a block of flats, say how many flats are affected. The engineer then brings the right kit.
If you repair my Leytonstone drain, is it guaranteed?
Yes, for six months on workmanship. T&Cs apply, and the same guarantee covers unblocking. If the problem returns in that time, we come back for it. What is covered is explained before the engineer leaves, and the terms can be sent on request.
Can you film the drain under our block in Bow?
Yes. A CCTV survey records the inside of the communal drain and each stack. The managing agent then sees which section is cracked, silted or holding water. Once the survey is done, the footage and a written report are yours. It can go to the freeholder, an insurer or the water company.

Need a drainage engineer in East London?

Someone answers at any hour. Emergency call-outs are booked to a two-hour arrival, with the rate agreed on the phone.