FS Group engineer jetting a drain from a basement lightwell

Drainage services in South East London

Book drainage services South East London households trust, from Bermondsey terraces to Bexleyheath semis. Our engineers clear, jet and reline drains, and the phones are answered day and night.

  • 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 engineers for hillside streets and riverside blocks

Our engineers work from Bermondsey and Peckham to Greenwich, Eltham and Bexleyheath. Older terraces in Lewisham and Deptford often still have their original clay pipes. In Sidcup and Bexleyheath, post-war semis bring long garden runs and tree roots. A camera check tells us which one we are dealing with.

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

Per half hour for a standard unblock, Monday to Friday from 8am to 6pm. Before an engineer heads out, the help desk tells you the rate.

See all our rates

Recent words from customers

4.9
★★★★★
Google rating
★★★★★
Shooters Hill

We were extremely impressed with the service provided by FS Drainage Services. They came out the same day at a reasonable, set price and the plumber was very quick, friendly and efficient. I would highly recommend them.

S
Sarah
Engineer visit · Reviews.co.uk
★★★★★
Belvedere

Mitch was very efficient with a friendly manner. He completed the work quickly and we spoke about how to help prevent the problem reoccurring, I would certainly recommend FS Drainage.

L
Linda
Engineer visit · Reviews.co.uk
★★★★★

After checking several other companies, FS Drainage offered a more competitive and realistic quote. I booked them in for a Sunday visit at no extra cost they kept to their word by giving a half hour call to say they're on the way. When James arrived he was polite, efficient and dealt with the external drain blockage promptly. In minutes - Job Done!! at the quoted price. This is one company I would use again if required, but also recommend based on my experience. Thank you

A
Andy V.
Outside drain · Google
★★★★★

I contacted FS Drains on Sunday evening and they arrived promptly at 7am the next day, to clear the drains quickly and efficiently. Very happy with the service provided. Thank you!

C
Chloe A.
Drain unblocking · Google
★★★★★

Amazing job today sorting out our extremely blocked drainpipe, my husband was in and told me I had to write a review as he was so impressed, he said the 2 guys who came could not have been nicer, everything was clearly explained and they did a brilliant job plus the cost was very reasonable indeed. Will definitely recommend and use again. Really 5 star service

R
Rosie S.
Blocked drainpipe · Google
★★★★★

I was recommended FS drainage and called them needing immediate help. So, Gabriel was fantastic over the phone gathering as much detail as he could and then arranged for James to visit my property asap. Not only did they fix a worrying leak, but they were thorough, decent, polite and (importantly) trustworthy. A huge thank you. I’m more that grateful.

A
Alex S.
Leak, found and fixed · Google

Where we work

Areas we cover in South East London

Tap Charlton, Catford or another place for a quick look at its postcode and homes.

More areas we cover in South East London

SE1Waterloo, Bermondsey, Southwark, BoroughSE2Abbey Wood, West HeathSE3Blackheath, Kidbrooke, CharltonSE4Brockley, Crofton Park, Honor Oak ParkSE5Camberwell, Denmark HillSE6Catford, Hither Green, BellinghamSE7CharltonSE8DeptfordSE9Eltham, Mottingham, New Eltham, Falconwood, KidbrookeSE10Greenwich, Maze HillSE11Kennington, Lambeth, VauxhallSE12Lee, Chinbrook, Hither Green, Grove Park, Horn ParkSE13Lewisham, Hither Green, LadywellSE14New Cross, New Cross GateSE15Peckham, NunheadSE16Rotherhithe, Surrey Quays, BermondseySE17Walworth, Elephant & CastleSE18Woolwich, Plumstead, Shooters HillSE19Upper Norwood, Crystal PalaceSE20Penge, Anerley, Crystal PalaceSE21Dulwich, Dulwich Village, West Dulwich, Tulse HillSE22East Dulwich, Peckham RyeSE23Forest Hill, Honor Oak, Crofton ParkSE24Herne HillSE25South NorwoodSE26SydenhamSE27West NorwoodSE28Thamesmead

Drain ownership

Who looks after which drain

Your section
Inside your boundary, a drain taking waste from your property only is yours. That goes for a Sidcup semi or a Peckham terrace.
Shared pipes, sewers
Since October 2011, Thames Water has been responsible for shared drains and public sewers.
Road drains
Greenwich, Lewisham, Southwark and Bexley councils clear gullies on borough roads. On red routes the job falls to Transport for London.
SE and DA postcodes

South East London runs from riverside flats in Greenwich to hilly streets in Sydenham and the gardens of Bexley.

Who we work for

Homes, landlords and businesses

Home owners

A sagging pipe in Forest Hill or a blocked sink in Eltham, you hear the half-hour rate first.

Landlords and agents

Communal drains in Bermondsey warehouse conversions can be filmed. The survey ends with a written report you can keep.

About CCTV surveys

Kitchens on Rye Lane

Peckham food businesses can have drains seen to in the evening, overnight or at weekends. Holding a Priority Account brings faster response and contract pricing.

About Priority Accounts

Drainage services we carry out

One number covers all of it, from a slow sink in Deptford to a root-blocked run in Bexleyheath. Explain what is happening and we book the right service.

How it works

From phone call to finished job

1

Call or leave a number

Someone answers 0800 689 3497 at any hour. A form with your details gets a callback within 15 minutes.

2

Know the cost first

The help desk confirms your rate. An engineer sets off for Woolwich or Lewisham only after that.

3

Cleared and covered

Once the drain flows, a 6-month guarantee covers our workmanship. T&Cs apply.

CHAS accredited contractorSafeContractor approvedWater Jetting Association member 2026Constructionline registered

What we see most

The drain problems we fix most often in South East London

Slopes and sagging pipes

On sloping streets in Shooters Hill, Forest Hill and Sydenham, a pipe that settles can form a dip. Waste collects there and blocks it again.

Suburban gardens

In Bexleyheath, Sidcup and Eltham, long garden runs and trees send roots into old joints.

Riverside flats

Newer blocks in Greenwich and Deptford have communal drains that need regular checks.

Old clay pipes in terraces

Victorian terraces in Lewisham and Deptford still run on original clay pipes that crack at the joints.

Fat from food streets

Food businesses in Peckham and Bermondsey wash fat down the sink, and it hardens in the pipes outside.

Leaves in yard gullies

Leafy streets in Dulwich and Forest Hill fill outside gullies each autumn, so rain backs up.

Questions we get from Greenwich to Erith

Do you cover Bexley and Sidcup?
Yes. We cover the whole of South East London, from Southwark out to Bexley and Bromley.
Why does my drain block again after it has been cleared?
A dip, a root or a broken joint can catch waste each time. A CCTV survey finds the cause, and jetting or a repair keeps it from returning.
Do you check communal drains for blocks of flats?
Yes. We clear and survey shared drains for residents, freeholders and managing agents, with a written report after a survey.
Is your work guaranteed?
Yes. Our workmanship carries a six-month guarantee, T&Cs apply. Ask the help desk for the details when you book.
What do you charge to unblock a drain on a sloping street?
A half-hour slot for a standard unblock starts at £55.00 + VAT, weekdays 8am to 6pm. Other times, and jetting, carry their own rates.
Do you add charges for coming out to Belvedere?
There is no call-out fee and no ULEZ charge, and emergencies cost no premium.
How soon can you attend a blocked drain in Sydenham?
If it is an emergency, we aim for an engineer within two hours. Otherwise we book a time that works for you.
Can a camera check the drain at my Shooters Hill house?
Yes. CCTV footage is taken inside the pipe, and you receive the video plus a written report.

Need a drainage engineer in South East London?

Phone at any time. An emergency in South East London gets our two-hour response.