24/7 Drainage Services in London

Blocked drain in London? FS Group sends a drainage engineer within two hours, day or night, and fixes the problem on the first visit wherever possible. Our plumbers and heating engineers take care of leaks, boilers and hot water across London and Essex.
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Family-run since 1998

2-hour emergency response

 Call 0800 689 3497

Trusted by housing associations, landlords and property managers

Drainage services in London, from blocked drains to full repairs

fs group drainage services

Drainage services in London, from blocked drains to full repairs

When a drain backs up, you need a company that answers the phone and turns up. FS Group is a two-generation, family-run drainage company working for homeowners, landlords, businesses and the teams who manage large property portfolios across London.
Our engineers clear blocked drains, survey pipes with CCTV, jet out grease and silt, and repair or reline damaged drains without digging up your garden. The same team handles plumbing and heating, so one call also covers a leaking pipe or a boiler that will not fire up.

One point of contact, honest quotes over the phone, and a callback within 15 minutes when you leave your details.

Trusted across London and the South East

4.9
★★★★★
from 219 Google reviews
Read them all on Google
★★★★★

Excellent in every way. Very fast response. Professional and polite. Problem quickly sorted and clear, reasonable pricing. Highly recommend

L
Lisa W.
★★★★★

Josh was incredibly efficient and had a good attention to detail. He also was patient enough to explain all of the things that he was going. Call out was very quick also.

M
Matt T.
★★★★★

Had a visit this morning to repair a leak which other contractors had failed to fix for over a month now. I was kept in the loop about the time they would be arriving. They were punctual, polite and even tidied up after themselves. They also offered to report other issues in the household for me. Thank you so much

M
Megan M.
★★★★★

Josh came today to screen my drains, he was great, really knows his job very well, he was so patient and helpful, It was an absolute pleasure. He did his job way and beyond !

C
Charlie J.
★★★★★

Always a pleasure doing business with FS Group. Communications are always very good, they are punctual, professional, efficient and staff attending are always friendly and helpful. Five stars!

D
Donald P.
★★★★★

Brilliant young man, respectful, got the job done and made sure he cleaned up after himself. Would highly recommend!

M
Megan B.
★★★★★

Brilliant service and team, callout and sorted within two hours and great price for the work. Easily identified the issue and cleaned everything following. Highly recommend.

D
Daryl
★★★★★

Very positive experience. Josh was very informative and resolved the issue within 20 minutes. He was also very open about what it could cost depending on how severe the issue may be and how long it may take.

J
J. K.
★★★★★

Excellent service the engineer worked very hard to clear a very difficult problem. I'm very happy with their service. And would be pleased recommend them.

T
Terry M.
★★★★★

Excellent services. Excellent prices. I’ve had serious drainage issues in the past and these guys have always been my go-to. Quality work!

P
Prince A.
★★★★★

Prompt and professional service with a good level of expertise. Clear and friendly communication both from the engineer and switchboard. Clarity of charges. The problem was resolved.

D
Diana B.
★★★★★

I recently had a blocked toilet and called this company late on Saturday night. Despite the late hour, they were incredibly responsive and arrived promptly at 8am on Monday morning as promised. Two lovely young lads came out – they were polite, professional, and extremely helpful. They clearly knew exactly what they were doing. They brought specialist equipment with them and had the soil stack unblocked within half an hour. The price was very reasonable, especially considering the quick response and high standard of work. I’m really happy with the service and wouldn’t hesitate to recommend them to anyone. Fantastic job!

M
Michelle H.

Drainage, plumbing and heating in London

Drainage, plumbing and heating are what FS Group is known for, and they make up most of the calls we take. Drains are where the business started in 1998. Plumbing and heating grew alongside them, because a blocked drain, a leaking pipe and a boiler that will not fire up often turn out to be the same visit. Whichever of the three you need, you deal with one team that does this work every day.

FS Group engineer in a branded fleece standing in front of an FS van

How it works when you call FS Group

From your first call to a fixed problem in four steps, with someone keeping you updated at each one.

Call or book online and tell us what is happening. We match the job to the right engineer, whether it is a drain, a pipe or a boiler.
We confirm your appointment within 15 minutes and tell you who is coming and when.
Follow your engineer on the way to you, so you are not stuck waiting in all day.
Your engineer arrives with the kit for the job, finds the cause and fixes it on the first visit wherever possible.

Our drainage services in London

Every drainage job starts with finding the cause. These are the services our drain engineers carry out most, for houses, flats, shops and commercial sites.

Blocked drains in London? Let's sort it

Our drainage engineers are on call around the clock across London, Essex, Kent and Hertfordshire, and most jobs are priced on the call before anyone is sent.
For landlords, agents and property managers

Running a portfolio? We're built for it

Portfolio work is something we actively go after. FS Group already looks after properties for lettings agents, landlords, property managers, housing associations, retail chains, hotels, healthcare sites, councils and facilities management companies across London and the South East, and we have the capacity to take on more.

A Priority Account puts it all under one agreement, with faster response, a dedicated point of contact and contract pricing.

What a portfolio gets from us
  • One supplier for every trade, from drains and boilers to roofs and electrics
  • 24/7 reactive cover across all your properties
  • Planned maintenance programmes
  • Compliance documentation handled internally
  • Faster response and contract pricing on a Priority Account

Why London calls FS Group

Fast, reliable and backed by five-star reviews. One team covers drains, plumbing and heating, so you are not ringing round three different firms.
Available for emergencies
On call 24/7, every day of the year, bank holidays included. For emergencies we aim to be with you within two hours.
Free quotes over the phone
Describe the problem and we give you a free, no-obligation quote over the phone. Larger jobs get a site visit first.
Guaranteed workmanship
Every completed job carries a six-month workmanship guarantee, so you know exactly what is covered after we leave.
fs group drainage services

Other services from FS Group

Drainage, plumbing and heating come first, but the same team can take care of the rest of your property, at home or on a commercial site.

Family-run since 1998

Over 12,000 jobs done every year
Over 54,000 minutes on call
100+ commercial clients served
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Frequently asked questions

What drainage services do you offer across London?
We cover drain unblocking, emergency call-outs, CCTV drain surveys, high-pressure jetting, drain repairs and no-dig relining, for homeowners, landlords and commercial sites. The same team also handles plumbing and heating.
How quickly can a drainage engineer get to me in London?
For emergencies we aim to have a drainage engineer with you within two hours, day or night. Planned work is booked at a time that suits you, often the same day.
How much does drainage work in London cost?
It depends on the job and how long it takes to put right. Our standard rates are on the service rates page, and for most jobs we can give you a free quote over the phone before anyone is sent.
Do you need to dig to fix a broken drain?
Not usually. Many cracked or leaking pipes can be relined from the inside, which avoids digging up driveways, patios and gardens. A CCTV survey shows first whether relining will work.
When do I need a CCTV drain survey?
When drains keep blocking or smell, when you suspect damage, and before you buy a property. The camera shows where the fault is and what caused it, and you get a report to share with a seller or an insurer.
Who is responsible for a blocked drain in London, me or the water company?
Usually you are responsible for pipes that serve only your property and sit inside your boundary. Shared drains and public sewers are normally the water company's job, which across most of London is Thames Water. If you are not sure which it is, we can survey it and tell you.
Do you offer commercial drainage in London?
Yes. We clear and maintain drains for landlords, housing associations, shops, restaurants, offices and healthcare sites, including grease traps and planned maintenance. Priority Accounts give portfolios faster response and contract pricing.
Is a blocked drain an emergency?

It is if waste water is coming back up into the house, a toilet or drain is overflowing, sewage is surfacing outside, or your only toilet cannot be used. Call 0800 689 3497 and we will send an engineer, day or night. A slow sink or a gurgling plughole can usually wait for a booked visit, but do not leave it long, because a partial blockage tends to get worse.

Do you work weekends and bank holidays?
Yes. We work 24/7, every day of the year, including weekends and bank holidays. Any out-of-hours rate is agreed with you before an engineer is sent.
Which areas do your drainage engineers cover?
Every London borough, from Barnet and Hackney to Croydon and Richmond, plus Essex, Kent and Hertfordshire, including Chelmsford, Watford and Maidstone. Emergency response is the same two-hour target across the whole area.