Drainage Advice Hub.
Practical advice about blocked drains, CCTV surveys, drain cleaning and repairs — helping you understand drainage problems and what the appropriate next step may be.
Latest Drainage Advice
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Find the information you need
Start with the type of drainage problem or service you want to understand. These routes connect our advice with the main AJS drainage services.
Blocked Drains
Understand drain blockages, restrictions, professional cleaning and high-pressure water jetting.
Explore drain cleaning → 02CCTV Surveys
Learn how CCTV inspection can help investigate recurring drainage problems and visible internal conditions.
Explore CCTV surveys → 03Drain Repairs
Explore drainage repair and lining options when investigation identifies damage or another defect.
Explore drain repairs → 04Culvert Surveys
Understand how CCTV culvert inspection can help assess accessible internal condition and inform appropriate next steps.
Explore culvert surveys → 05Local Drainage
Find information about AJS drainage services and coverage across Essex and surrounding service areas.
View areas we cover → 06All Services
Not sure which service applies? Start with our complete drainage services overview.
Explore all services →Search by problem or service
Search the AJS website for the drainage issue, service or location you need.
Useful searches include blocked drains, blocked toilets, drain jetting, CCTV surveys, root cutting, drain repairs and drainage cleaning.
What is your drain doing?
You do not need to diagnose the problem yourself. Start with the symptoms and move towards the appropriate investigation or service.
Blocked?
If water is draining slowly or has stopped flowing, professional cleaning and unblocking may be the appropriate first step.
Drain Cleaning →Keeps Blocking?
When the same drainage problem repeatedly returns, further investigation may help establish why.
CCTV Surveys →Damage Found?
Where investigation identifies a defect, suitable repair or lining options can then be considered.
Drain Repairs →Not Sure?
Tell AJS what is happening and we can help identify the most appropriate starting point.
Contact AJS →
The right next step depends on the drainage problem, what has already been tried and what further investigation reveals.
Why does a drain keep blocking?
Some blockages are straightforward and can be cleared without further work. If the same drainage problem repeatedly returns, however, it may be useful to investigate what is happening inside accessible sections of the drainage system.
No. CCTV is particularly useful where a problem repeatedly returns, where internal condition needs investigating or where more information is required before deciding on further work.
Move from reading to resolving
Our advice library helps explain the problem. When you need practical drainage support, these are the three main routes through AJS.
Drain Cleaning
Drain unblocking, professional cleaning and high-pressure water jetting for blocked, restricted or slow-running drainage.
Explore Drain Cleaning →CCTV Surveys
CCTV inspection to help investigate recurring problems and assess visible conditions within accessible drainage.
Explore CCTV Surveys →Drain Repairs
Drain repair and lining options where investigation identifies damage or another defect requiring corrective work.
Explore Drain Repairs →Common drainage questions
What causes a blocked drain?
Drains can become blocked or restricted for different reasons, including unsuitable material, deposits, obstructions or other conditions affecting normal flow.
Why does my drain keep blocking?
A recurring blockage can have several causes. Where the same problem repeatedly returns, further investigation may help identify visible restrictions, defects or other relevant conditions.
What can a CCTV drain survey show?
CCTV provides a visual inspection of accessible internal drainage and can help identify visible conditions relevant to a drainage problem.
Can drains be repaired without digging?
Some defects may be suitable for lining or another no-dig repair method. Suitability depends on the defect, pipe condition, access and site circumstances.
Drain problem right now?
You do not need to diagnose it yourself. Tell AJS what is happening and we can help identify the appropriate starting point.