Blocked Drains in Harlow
Blocked drain in Harlow? We answer the phone day and night
A drain that has backed up into a gully, a shower or a downstairs WC does not improve while you wait for office hours. We run a genuine 24 hour emergency service, 365 days a year, and we do the whole job: clear the blockage, put a camera down to find out why it happened, and repair the pipe so it does not happen again.
Vantage Plumbing and Heating works across Harlow from our base in Stevenage, about 20 miles up the road. Gas Safe registered under 956889, company number 13248357, and a 2 year guarantee on our workmanship.
Vantage Plumbing and Heating covers Harlow from our base in Stevenage. We are Gas Safe registered under 956889, we carry the common parts on the van, and we guarantee our labour for 2 years.
A new town's drains are older than people think
Harlow was designated in 1947 and most of it was built at speed between roughly 1950 and 1965, from Mark Hall North, the first neighbourhood finished, through Netteswell, Great Parndon, The Chantry, Northbrooks, Cooks Spinney and Ladyshot. The population went from 4,500 at designation to 78,000 by 1971. That building programme laid an enormous amount of drainage in a short window, and it is now seventy odd years old.
Drains from that era are typically salt glazed clay, laid in short lengths with rigid joints. Clay is a good material, but every joint is an opportunity, and after seven decades of ground movement, traffic loading and tree growth, plenty of those joints have opened. Harlow was planned around green wedges and mature planting, which makes it a pleasant town and a busy one for root ingress. Roots find an open joint, grow into the moisture, and give you a drain that blocks in the same place every year or two.
Old Harlow is a different story again. The historic village at the north east of the town, with Churchgate Street, Harlowbury, Harlow Mill and Old Road North around it, carries genuinely old fabric and drainage that has been altered, extended and patched over a very long time. Runs there need a camera before anyone starts making promises.
Then there are the later layers: Sumners and Katherines, Church Langley built out through the 1990s, Newhall from 2009 and Gilden Park from 2018. Those estates are on plastic pipework, generally sound, and when they block it is nearly always what went down the pipe rather than the pipe itself.
Surface water is Harlow's real drainage story
Harlow sits in the Stort valley, with the River Stort running along the north of the town and forming the county boundary with Hertfordshire. The Harlow Surface Water Management Plan covers over 30 square kilometres of the valley and names nine Critical Drainage Areas: Sumners, Kingsmoor, Stewards, Latton Bush, Brays Grove, Netteswell, Victoria Gate, Rivermill and Old Harlow. Brays Grove and Old Harlow have the highest counts of properties at risk, and around 1,680 homes are at risk in a 1 in 100 year event, rising to about 2,390 once climate change is allowed for. The Environment Agency maintains a flood alert area for the River Stort at Harlow.
For a homeowner that translates into something practical. If you are in one of those areas, your gullies, channel drains and surface water pipes are doing more work than the same drains would do elsewhere, and a partially silted gully that would be a nuisance in a dry town becomes water through the airbrick here. Keeping surface water drainage clear in Harlow is not housekeeping, it is flood defence at the scale of one house.
The town is also densely built, at 8,330 people per square mile at the 2021 Census, with a lot of paved driveways and patios draining to gullies and soakaways. When a heavy summer storm lands on that, undersized or neglected surface water drainage shows itself very quickly.
Who is responsible for your drain in Harlow
Two things matter: which company, and which side of the line the problem sits.
The company is the counter-intuitive part. Harlow is in Essex, but its sewerage undertaker is Thames Water, not Anglian Water. The town’s foul water is treated at Thames Water’s Rye Meads works, the same site that serves Hertford, Welwyn Garden City and Stevenage. Your drinking water comes from Affinity Water, so the two halves of your water service are with different companies, and for a drain problem it is Thames Water you need.
The line on the ground moved in 2011. Since then, drains shared between two or more properties, and the lateral drain, meaning the section of your own drain beyond your property boundary, belong to the sewerage undertaker. The private drain within your boundary that serves only your house is still yours. Surface water drainage on your own land, a soakaway or a driveway channel, was never transferred and remains yours too.
Harlow’s terraced layout makes this genuinely useful to know. Gibberd planned the town around two storey terraces with private gardens, and terraces mean shared runs. A blockage in a run that serves several houses in Ladyshot or Mark Hall North is very likely in a public sewer, and resolving it is Thames Water’s responsibility, not a bill you should be paying. We tell you honestly which side of the line your problem sits before any work starts.
What we do
Blocked drain clearance. Depending on the blockage, we’ll use rodding, electro mechanical machines or high pressure jetting. Foul or surface water, inside or outside.
High pressure water jetting. The right tool for grease, silt, scale and root fibre. Jetting cleans the pipe wall back to the clay or the plastic rather than poking a hole through the middle of the problem.
CCTV drain surveys. A recorded camera survey with a written report. The answer to a drain that keeps blocking, and the sensible precaution before buying an older property.
Root cutting. Cutting and flail heads to remove root mass, followed by a survey to locate the defective joint the roots came through, because cutting alone is a subscription, not a repair.
Drain repairs and relining. A localised patch liner over a single open joint, full length lining where a run is cracked along its length, and excavation only where a pipe has actually collapsed. Most relining needs no digging at all.
Gullies, manholes and chambers. Cleared, rebuilt where benching has failed, and covers replaced where they are cracked or sitting proud.
Soakaways and surface water. New and remedial work on driveway drainage, channel drains and soakaways, sized for the ground conditions rather than guessed.
Why Harlow drains block
Fat, oil and grease. Warm fat sets in a cold pipe. In shallow gradient runs it builds into a hard lining that only jetting removes.
Wipes. Flushable on the packet, not in the pipe. The first rough joint catches them, and everything else backs up behind.
Root ingress. The most common repeat offender in the 1950s neighbourhoods, for the reasons above. Mature trees were part of Gibberd’s plan, and their roots have had seventy years to find the joints.
Displaced and open joints in clay runs. Ground movement and loading gradually open rigid joints. The drain silts, snags and eventually blocks for no visible reason.
Silted gullies and surface water pipes. Leaves, moss from roofs, and washings from paved drives. In the Critical Drainage Areas this is the fault that turns a storm into a flooded kitchen.
Misconnections. Foul water plumbed into surface water drains, or the reverse, usually after an extension or a kitchen relocation done without checking where the pipe went.
The properties where the job gets more interesting
Bishopsfield and Charter Cross, known locally as The Kasbah. Patio housing from 1961 stepping down a hillside, dense and tightly packed, with an underground car park. Access for a jetting unit needs planning before we arrive, not improvisation on the day, and long hose runs are normal here.
Mark Hall North and The Stow. The new town’s oldest neighbourhood, built in the early 1950s and a conservation area since 1987. Original clay drainage, terraced shared runs, and any external building work needs a thought for the conservation area rules. People are surprised that a 1950s terrace can sit in a conservation area. In Harlow it can.
Old Harlow and Churchgate Street. The period property end of the job. Old fabric, altered drainage, tight access, and one of the named Critical Drainage Areas for surface water. Camera first, always.
Church Langley and Newhall. Modern plastic systems. Blockages here are usage related, and the more common call is surface water: patios and extensions added since the estates were built, draining to soakaways that were never designed for the extra area.
Brays Grove, Netteswell, Latton Bush, Stewards, Sumners and Kingsmoor. All named Critical Drainage Areas. If your gullies have not been looked at in years and you are in one of these, a preventative jet and survey is cheaper than a wet floor.
Buying a house in Harlow
Most of Harlow’s stock is now over sixty years old, and a homebuyer survey does not look inside the drains. A pre purchase CCTV survey shows whether the clay is sound, whether roots are in the joints, and whether anything has been built over the run. On a 1950s terrace or anything in Old Harlow, it is money well spent.
Plumbing and drainage from one firm
A gurgling toilet, a slow bath waste and a smell in the hall can be a blocked drain outside or a soil stack and trap problem inside. We are plumbers and drainage engineers, so whichever it turns out to be, the same visit deals with it.
Trusted & Accredited Professionals
What it costs
A straightforward blockage is priced as a callout and first hour, agreed on the phone before we travel, out of hours included. Surveys, jetting and repairs are quoted on the length and condition of the run. We do not price a repair until the camera has been down, because a figure given before that is a guess. If you are thinking of claiming on buildings insurance, check what your policy covers, and we can provide the survey footage and written report your insurer asks for.
Why choose Vantage
One firm for the drain and the plumbing either side of it. Honest advice on whether the problem is yours or Thames Water’s, before you spend anything. Genuine 24 hour cover all year. Gas Safe registered under 956889, covering Hertfordshire, Essex border towns, Bedfordshire and Cambridgeshire from Stevenage, and a 2 year guarantee on our workmanship. Where we reline or repair, we show you the before and after footage rather than asking you to take our word for it.
Drain Unblocking in Harlow
Half the drain unblocking enquiries we get in Harlow turn out not to be the drain at all. A single slow basin or bath is usually the trap or the waste pipe inside the property, which is a far smaller job than a drain. A drain problem shows itself differently, with more than one fitting affected, or a gully or chamber standing full outside.
That distinction matters because it changes both the price and the time on site. Tell us which fittings are slow and whether anything is standing outside, and we can usually work out before we arrive whether this is a waste pipe or a drain, and what we need on the van.
Areas we cover for drainage around Harlow
All of Harlow across CM17, CM18, CM19 and CM20, including Old Harlow, Church Langley, Newhall, Mark Hall North, Netteswell, Great Parndon, Sumners, Katherines and Gilden Park, plus Roydon, Nazeing, Epping, North Weald, Hastingwood, Matching Tye, Matching Green, Sawbridgeworth, Gilston, Eastwick, Hunsdon and High Wych.
Frequently asked questions
Who do I call first, you or Thames Water? If the blockage is in a drain shared with neighbours, or beyond your property boundary, it is very likely in a public sewer and Thames Water is responsible for resolving it. If it is within your boundary and serves only your home, it is yours. Ring us on 01462 506374 and we will help you work out which before anyone is paying for anything.
Why does my drain block in the same spot every year? Because there is a defect there, usually an open joint or root ingress in the original clay, which is common across Harlow’s 1950s neighbourhoods. Clearing it treats the symptom. A CCTV survey finds the cause, and a patch liner usually fixes it for good.
Do you have to dig up the garden to repair a drain? Usually not. A patch or full length liner repairs most defects from inside the pipe. Excavation only happens where a pipe has genuinely collapsed.
I am in one of Harlow’s Critical Drainage Areas. What should I actually do? Keep your gullies, channel drains and surface water pipes clear, and get them jetted and inspected if they have been neglected. In areas like Brays Grove and Old Harlow the surface water system works hard in a storm, and a silted gully is the difference between a wet path and a wet hallway.
Is a soakaway a good option in Harlow? Sometimes. It depends on the ground and the water table at your property, so we test rather than promise. What we will not do is quote a soakaway without a percolation test, because an undersized or badly sited one is money buried in the garden.
Is a pre purchase drain survey worth it on a 1950s Harlow house? Yes. The pipework is the same age as the house, the joints are rigid clay, and the town’s trees have had decades to find them. Recorded footage before exchange beats an excavation bill afterwards.
Why Choose Vantage?
With a 4.9 rating on Google and more than 700 reviews across Google, Checkatrade and Trustatrader, fully qualified and accredited engineers, transparent pricing, and a 2-year labour guarantee on every job, Vantage delivers reliable, high-quality workmanship you can trust with fast response times, and genuine local service.
- Five-star Google reviews
- Gas Safe Registered No. 956889
- CHAS Registered
- City & Guilds qualified
- Checkatrade approved
- 2 year labour guarantee on every job
- Fully stocked vans most jobs fixed on the first visit
- Established local business with a dedicated office team and multiple qualified engineers
- No job too small
- Transparent pricing with a fixed price provided before any work begins
- 700+ reviews across Google, Checkatrade and Trustatrader, 4.9 on Google
Drainage problems in Harlow, fixed at the cause
Call 01462 506374, any hour, any day. Blocked drains cleared, CCTV surveys, jetting, root cutting and relining across Harlow and the villages around it.
Nearby: Drainage services in Bishop’s Stortford · Drainage services in Hoddesdon · Drainage services in Broxbourne · Drainage services in Great Dunmow
For taps, cylinders, stopcocks and the rest of the day to day work, see general plumbing in Harlow.