Chelmsford is the largest of the nine towns on this site. The 2021 Census counts 110,625 people in its built-up area (ONS). A blocked drain here can sit in your own pipe or in a sewer, so the first job is to find out which.
Chelmsford City Council says Anglian Water handles sewers and blocked sewers in the Chelmsford area. You are responsible for the drain that serves your own property. If a blocked private drain affects your neighbours, you can report it to the council's public health team.
If a macerator toilet keeps blocking, read about common Saniflo macerator faults. If the pipe serves more than one home, read about shared drains and the CON29DW search.
Price guides give typical UK ranges, not Essex prices, so treat them as a guide for Chelmsford. Precise Drainage Solutions gives £80 to £300 for minor to moderate blockages, and MyJobQuote gives an average near £100. Jetting, repeat blockages and sewer work can cost more, because they take longer.
The sources differ because jobs differ, and some guides come from firms that sell the work. Ask the engineer to explain the price in writing before work starts. Ask too whether there is a call-out charge. Keep the quote in case the price changes.
Here is how a blocked drain job often runs in Chelmsford. The order matters because the price should come before the work. Each step below shows what to say and what to ask.
Use the form on this page to describe the problem. Add your postcode and say if it is urgent, because a clear note helps the engineer plan the visit.
Ask the engineer for a written quote before work starts. Ask whether there is a call-out charge on top. Check what the quote covers too.
The engineer checks the drain, often with rods or a camera. This shows whether the blockage sits in your pipe or in a shared sewer. Ask what they find, since the answer decides who pays.
The engineer clears the pipe, then runs water to check the flow. Ask what to change so the blockage does not come back. Keep notes while the details are fresh.
Most blocked drains have a simple cause, and a few checks can find it. Look at which fixtures back up to see how far along the pipe the problem sits. The list below shows the usual suspects.
A few questions help you compare quotes, since engineers price jobs in different ways. Ask them before you agree to any work, and keep the answers in writing. Clear answers are a good sign, while vague ones are a reason to ask again.
Chelmsford City Council says Anglian Water handles sewers and blocked sewers in the Chelmsford area. You are responsible for the drain for your own property. If a blocked private drain affects your neighbours, you can report it to the council's public health team.
Stop running water into the drain, such as the washing machine. Check whether one fixture or several back up. Several usually point to the main drain. Then send a request with your postcode and ask the engineer for a written quote before work starts.
Fat and grease, wet wipes, hair, roots and broken pipes cause most blockages. Wet wipes do not break down like toilet paper, so they catch in bends. A camera survey shows the cause if a drain keeps blocking, so ask the engineer to share what they find.
A drain that keeps blocking needs a closer look, because the cause may be a fault. See CCTV drain surveys in Chelmsford for what a camera shows, or drain jetting in Chelmsford for a full clean. Ask the engineer which one fits your pipe.
Nearby towns have their own pages for this service. See blocked drain help in Springfield or blocked drain help in Great Baddow. Water company and council details differ from place to place. Pick the page for the town where the property sits.
Read the Blocked Drains overview for causes, costs and questions to ask. You can also browse all drainage services in Chelmsford, which lists every service for this town. Then use the form at the top of this page to send your request.