FS Group engineer rodding a drain beside a house

Drainage services in North West London

From Kilburn conversions to Edgware semis, our drainage services North West London customers call on cover every blocked drain. Ring at any hour and we send an engineer.

  • 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

Engineers for converted flats and 1930s semis

Our engineers cover Kilburn and Willesden through Wembley and Hendon to Edgware. Many houses in Kilburn and West Hampstead are now flats that share one drain. Further out, 1930s semis in Kingsbury and Mill Hill have long garden runs. Each needs a different first step, and the engineer explains it on arrival.

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

Weekday price for a standard unblock, billed per half hour from 8am to 6pm. You hear the figure on the phone first.

See all our rates

Reviews from people we have helped

4.9
★★★★★
Google rating
★★★★★

All the great reviews are completely accurate. Mitch arrived within minutes of our call to fix a blocked shower pan which I just could not unblock with plunger or chemicals. He immediately fixed the problem for a decent price and was super friendly and helpful. It’s hard to find good trustworthy drain technicians but on this evidence FS are the best.

J
Joe P.
Blocked shower · Google
★★★★★

Have used FS a couple of times and have always sorted the problem quickly. Definitely the guys to call when you have a problem with your drains

Y
Yee T.
Drain unblocking · Google
★★★★★

Amazing service. Fast, efficient and very cheap. They came out straight away, same day and sorted the blockage out. 100% use this company for blockages. Again many thanks to your team.

E
Emma C.
Drainage job · Google
★★★★★

We called FS after a bit of a problem with our drains outside the house. They came promptly, kept me informed every step of the way and the engineer was super efficient and solved the issue. Lifesaver!!

J
Julie K.
Outside drain · Google
★★★★★

Uchenna came and unblocked our drain which had been blocked for at least 7 months. He did it very quickly and explained our options before starting. He was very professional and would definitely recommend. I booked this appointment on Friday and was able to get an appointment for Saturday. Very happy.

N
Nadine
Drain unblocking · Google
★★★★★

Really quick and efficient solution to my problem. Arrived promptly, very polite and got my drain unblocked quickly. Would recommend. Also carries a card machine so no trips to the cash point! Thanks!

J
Julia H.
Drain unblocking · Google

Where we work

Areas we cover in North West London

Each place below shows its postcode and the kind of homes found there. Tap one for its council.

Your street not shown? Give the help desk your NW or HA postcode and they will tell you.

More areas we cover in North West London

NW1Regent's Park, St Pancras, EustonNW2Cricklewood, Dollis HillNW3Hampstead, Belsize Park, Swiss CottageNW4Hendon, Brent CrossNW5Kentish Town, Gospel OakNW6Kilburn, Maida Vale, West HampsteadNW7Mill Hill, ArkleyNW8St John's Wood, Lisson GroveNW9Colindale, Kingsbury, The Hyde, West HendonNW10Willesden, Harlesden, Kensal Green, Park RoyalNW11Golders Green, Temple Fortune, Hampstead Garden Suburb

Drain ownership

Who looks after which drain

Pipe inside your plot
If a drain carries waste from your house alone and lies within your boundary, looking after it falls to you.
Drains you share
Where your pipe joins next door's, it becomes a shared drain. Thames Water has owned those, and the sewers, since October 2011.
Street gullies
Brent, Camden and Barnet councils look after the gullies on their roads. Transport for London handles those on red routes.
NW and HA postcodes

North West London mixes big Victorian houses split into flats with 1930s semis further out. Each blocks in its own way.

Who we work for

Homes, landlords and businesses

Households

From a Neasden semi to a Golders Green flat, you know the price per half hour before anyone travels.

Agents and freeholders

Communal drains in Colindale blocks can be surveyed on camera. You receive the recording and a written report.

About CCTV surveys

Takeaways and restaurants

Kilburn High Road kitchens can book drain work at night or at weekends, so service carries on. Priority Account holders get quicker response and contract prices.

About Priority Accounts

Drainage services we carry out

A sink in West Hampstead or a root-filled run in Mill Hill, the booking line is the same. Describe the problem and the help desk picks the service.

How it works

What happens when you call

1

Ring us any hour

The line on 0800 689 3497 never closes. Prefer a callback? Leave your details and expect a call within 15 minutes.

2

Agree the rate

You know the rate for your job before the engineer heads to Wembley or Hendon.

3

Drain flowing again

Once the blockage is cleared, our workmanship is guaranteed for 6 months. T&Cs apply.

CHAS accredited contractorSafeContractor approvedWater Jetting Association member 2026Constructionline registered

What we see most

The drain problems we fix most often in North West London

Houses turned into flats

In Kilburn, Willesden and West Hampstead, one drain often serves four or five flats. Fat and wipes from every kitchen meet in it.

Interwar semis

Homes in Kingsbury and Edgware are often on clay pipes from the 1930s. The joints shift, and roots and silt get in.

Busy high streets

Restaurants on Kilburn High Road and around Wembley need grease traps emptied before the drain backs up.

Blocked yard gullies

Back yards in Willesden and Harlesden collect leaves and silt in the gully, so rain backs up against the house.

Roots in garden runs

Trees in Mill Hill and Edgware gardens send roots into old clay joints along long drain runs.

Blocks with communal drains

Larger blocks in Kilburn and Colindale run long communal drains that need planned jetting to stay clear.

Your drain questions, from Kilburn to Edgware

Do you cover Wembley and Hendon?
Yes, and the rest of Brent, Harrow and Barnet. The help desk confirms your postcode when you call.
I live in a converted flat. Can you still help?
Yes. We clear the branch from your flat and the shared drain below it. If the fault is in a shared pipe, we tell you and your managing agent who is responsible.
Why does my kitchen sink keep blocking?
Grease cools and sticks to the pipe walls, then food catches on it. Jetting clears the pipe back to its full width, so it stays clear for longer.
Can you work around my restaurant's opening hours?
Yes. We clear and jet commercial drains in the evening, overnight or before you open.
How much is a drain unblock for a semi?
A standard unblock is charged at £55.00 plus VAT for every half hour, Monday to Friday, 8am to 6pm. Evening, weekend, overnight and jetting work each has its own rate, given before we set off.
Is there a charge just for coming to Harlesden?
No call-out fee is added, and neither is a ULEZ charge. An emergency costs no premium either.
How quickly can an engineer reach a Willesden flat in an emergency?
Our aim for an emergency is an engineer at your door within two hours of the call.
Do repairs on Hendon drains come with a guarantee?
They do. Workmanship has a six-month guarantee, T&Cs apply.
Can a camera show what is in the drain under my Kingsbury semi?
Yes. A CCTV survey films the pipe, you keep the footage, and the job ends with a written report.

Need a drainage engineer in North West London?

Lines are open around the clock. When it is an emergency, we work to a two-hour arrival anywhere in North West London.