FS Group engineer feeding a drain cable into an open manhole on a grass verge

Drainage services in Barnet

FS Group provides drainage services in Barnet, from High Barnet and Whetstone to Finchley, Hendon and Edgware. Call us day or night for blocked drains, camera surveys, jetting and pipe repairs.

  • Available 24/7, 365 days
  • Prices from £55.00 + VAT
  • Rate agreed before we set off
  • 6-month guarantee

Family-run since 1998

On call day and night

Call 0800 689 3497

Homeowners, landlords and businesses across north London trust our engineers

Why FS Group

Drain engineers for interwar semis, garden suburbs and new flats

Our drainage services in Barnet cover the whole borough, from High Barnet and Totteridge to Hendon and Cricklewood. Blocked drains here often trace back to the housing. Finchley and Edgware have long rows of 1930s semis, with clay pipes running out under big gardens. Hampstead Garden Suburb has older homes on tree-lined roads, where roots find the joints. Colindale has new blocks of flats, and one communal drain can serve many homes.

Help desk open 24/7Rate given on the phoneWritten CCTV reportsFixed-price quotes6-month guarantee, T&Cs applyFamily-run since 1998
Cheap drain unblockingFrom £55.00 + VAT

Weekdays from 8am to 6pm, a standard unblock is charged per half hour. Ring first and you learn the rate before an engineer leaves.

See all our rates

What customers say about our engineers

4.9
★★★★★
Google rating
★★★★★

Called FS at 8:30am and was very happy to hear that they could come the same day before 12:00. Arrived within the advised time. Very able and helpful operative. Drain cleared and all cleaned down within 20 minutes. Brilliant job can't recommend highly enough.

M
Michael Clarke
Drain unblocking · Reviews.co.uk
★★★★★

Quick profession service. Very helpful and got our drain unblocked in no time. Fully recommend.

J
James Hallam
Drain unblocking · Google
★★★★★

Let down twice by another well known company. FS turned up when they said they would, fixed the drain blockage, and cleaned up well afterwards. If I ever need this service again, they will be the first I call.

D
Dave
Drain blockage · Reviews.co.uk
★★★★★

Highly recommend this company. Quick, efficient, professional service. James sorted out our badly blocked drain in less than half an hour! Happy customer!

A
Asya Healey
Blocked drain · Reviews.co.uk
★★★★★

Excellent service, really quick to resolve and very polite. Very pleased with results and was concerned the blockage could have been more serious.

P
Peter Allen
Blockage · Reviews.co.uk
★★★★★

Mitch was brilliant. He fixed the stubborn blockage of my drains fast and very efficiently. He was professional, polite and helpful and I will recommend his services to all my family and friends.

U
Ulrike Schmidt
Drain blockage · Reviews.co.uk

Where we work

Areas we cover in Barnet

Where in the borough our engineers work, with the postcode for each place.

High Barnet and Whetstone

High BarnetEN5New BarnetEN4TotteridgeN20WhetstoneN20

Finchley and Friern Barnet

Finchley CentralN3East FinchleyN2North FinchleyN12Friern BarnetN11

Hendon and Golders Green

HendonNW4Golders GreenNW11Hampstead Garden SuburbNW11CricklewoodNW2

Edgware, Mill Hill and Colindale

EdgwareHA8Burnt OakHA8Mill HillNW7ColindaleNW9

Road not listed? Give us a ring and the help desk will check it.

More postcodes we cover

EN4, EN5New Barnet, High BarnetN2East Finchley, Hampstead Garden SuburbN3Finchley, Church EndN11Friern Barnet, New SouthgateN12North Finchley, Woodside ParkN20Whetstone, TotteridgeNW2CricklewoodNW4Hendon, Brent CrossNW7Mill HillNW9Colindale, West HendonNW11Golders Green, Temple FortuneHA8Edgware, Burnt Oak

Drain ownership

Who looks after which drain

Pipe for your home
The pipe that serves only your home, inside your boundary, is your responsibility. The moment it joins a neighbour's pipe, that ends.
Shared with next door
Shared drains and sewers belong to Thames Water across the whole borough.
Gullies in the street
Barnet Council clears the gullies in the road. A gully in your own yard stays with the property owner.
FS Group engineer rodding a drain in a brick side passageEN, N, NW and HA postcodes

The borough runs from green-belt edges in the north to the North Circular in the south. Drain layouts vary by street.

Who we work for

Homes, landlords and businesses

Owners and renters

In a Whetstone semi or a Hendon family house, you are shown the fault before anything is dug up.

Landlords and agents

Flats in Colindale and Finchley tend to share drains and stacks. Managing agents get the survey footage and a written report.

About CCTV surveys

Kitchens in Golders Green and Edgware

Restaurants around Golders Green Road and Station Road can book drain work outside opening hours. With a Priority Account, you get faster attendance and contract rates.

About Priority Accounts

Drain work we handle across the borough

Totteridge roots or a flooded gully in Burnt Oak, one call covers it. Describe what you can see, and the right engineer comes out.
Need a plumber in Barnet?

How it works

What happens after you ring

1

Ring the help desk

Ring 0800 689 3497 whatever the hour, or leave a number and we phone you within 15 minutes.

2

The rate, up front

You get the half-hour rate on that call, before anyone heads to Whetstone or Golders Green.

3

Fixed and guaranteed

With the fault put right, you get a six-month guarantee, T&Cs apply.

CHAS accredited contractorSafeContractor approvedWater Jetting Association member 2026Constructionline registered

What we see most

The drain problems we fix most often

Wet wipes in the toilet

Flushable wipes stay in one piece. They catch at the first bend, then paper builds up behind them.

Roots in long garden runs

Mature trees in Mill Hill and Totteridge send fine roots through old clay joints. In time they fill the pipe.

Extensions over old drains

Many Hendon and Finchley houses were extended over the drain. A fault under the floor is harder to reach, so we film it first.

Grease from food shops

Shops and takeaways along Station Road rinse oil down the sink. It sets inside the pipe and narrows it.

Leaves in outside gullies

Leaves from the tree-lined roads of Golders Green and Hampstead Garden Suburb fill yard gullies in autumn. Rainwater then has nowhere to go.

Flats on one stack

Flats in Colindale and converted houses in North Finchley share a soil stack. One blockage upstairs can reach every home below.

Questions from High Barnet to Cricklewood

Do you cover the whole of Barnet?
Yes. We cover the places listed above, from New Barnet and Whetstone to Hendon, Colindale and Edgware. If your road sits near the Brent or Enfield border, phone and the help desk will confirm.
Can you cut tree roots out of a drain?
Yes. Roots are common around Totteridge, Mill Hill and Hampstead Garden Suburb. The machine or jetter cuts them back. Then a camera shows whether relining will keep them out.
Is a shared drain my responsibility?
Usually not. Most shared drains became the water company's job in October 2011, and here that means Thames Water. Clearing them costs you nothing. Filming the run tells us where your pipe joins the shared section.
Do you do homebuyer drain surveys?
Yes. We film the drains of the home you plan to buy, then send a written report. Use it with your solicitor or to negotiate on price. Book a few days before exchange.
What do blocked drains in Barnet cost to clear?
Weekday unblocking, 8am to 6pm, costs from £55.00 + VAT each half hour. Most toilets and sinks take no longer than that. Jetting and night or weekend visits have their own rates, given before you book.
Will I hear the price before work starts?
Yes. The rate comes first, on the phone. If more work is needed, the engineer explains it before starting. You pay for the engineer's time at that rate.
How quickly can an engineer reach me?
It comes down to which engineer is free and closest. The help desk gives you a real estimate when you ring. Sewage backing up goes first, and everything else gets a time you choose.
Is your drain work guaranteed?
Yes. Every job has a six-month workmanship guarantee, T&Cs apply. That includes unblocking, repairs and relining. Should the fault come back during those months, ring us and we return to look at it.

Need a drain engineer in Barnet?

Ring at any hour and the nearest free engineer is sent to you.