CCTV Drain Survey & Drainage Services in Merton
CCTV drain surveys and drainage works in Merton: the camera goes in first, defects are coded and measured, and you get a written report before any repair is quoted. Blocked drain clearance, jetting and relining across Wimbledon, Mitcham, Morden, Raynes Park and Colliers Wood.
Fixed price agreed first
You know the cost before we start work.
All of Merton
Cover across the whole borough, same-day when a slot is free.
CCTV survey reports
Dated footage and written reports for insurers and buyers.
Fully equipped vans
Jetting, CCTV and relining kit on every visit.
Local knowledge
How Merton drains fail
Merton housing is dominated by Edwardian semis, interwar terraces and mansion flats. The Edwardian and interwar housing stock in this area is often connected to original clay drain runs, which are susceptible to root ingress and fracture given their age and material.
Knowing the local building stock matters: it tells us what pipe material and depth to expect, and which method will clear or diagnose the problem fastest — before we arrive.
Covered in Merton
- Blocked and slow-running drains
- CCTV surveys for house purchase and insurance
- No-dig relining of damaged pipes
- Root ingress and root cutting
- Manhole and inspection chamber repair
- Emergency drain call-outs
Three methods, one visit
High-pressure jetting
Blasts grease, silt and root growth from pipe walls without digging.
CCTV survey
A camera on rods or a crawler unit records the pipe condition end to end.
No-dig relining
A resin liner is cured inside the damaged pipe instead of excavating it.
Common drainage problems in Merton
Clay Drain Fractures
The original clay drainage systems installed during the Edwardian and interwar building periods are now beyond their design lifespan. These rigid clay pipes are prone to ground movement and thermal stress, leading to circumferential fractures and longitudinal cracks. Such defects allow soil ingress and root penetration, compromising structural integrity and requiring targeted repair or replacement.
Root Ingress
Mature tree root systems, common in areas with established housing, actively seek out moisture and nutrients within fractured clay drains. Roots penetrate through pipe joints and cracks, forming dense mats that obstruct flow. This leads to recurrent blockages and can exert significant pressure, exacerbating existing fractures and causing complete collapse of drain sections.
Silt and Debris Accumulation
Aged drainage systems with compromised gradients or damaged sections experience reduced flow velocities. This allows fine sediments, fats, and greases to settle and consolidate within the pipework. Over time, this accumulation significantly reduces bore diameter, leading to persistent slow drainage and providing a substrate for further root growth and blockage formation.
Joint Failure
Original clay drain sections were typically joined with mortar or simple mechanical collars. These joints degrade over decades due to chemical attack from soil conditions and constant minor ground movement. Failed joints become primary points of infiltration, allowing soil wash-in, and exfiltration, potentially undermining foundations. They are a common source of partial blockages and require precise identification for effective repair.
What we do
Drainage services in Merton
Drain Clearance
Diagnostic Drain Clearance
Jetting
Diagnostic Pressure Jetting
CCTV Survey
High-Resolution Diagnostic Survey
Drain Relining
WRc-Compliant Drain Relining
Root Cutting
WRc-Compliant Root Removal
Manhole Repair
Structural CCTV Diagnostics
Blocked Toilets
Diagnostic Drain Clearance
Emergency Call-Out
24/7 CCTV-Assisted Response
Drain Repair
Definitive Drain Repair
Areas we cover in Merton
Where we work
Merton coverage map
Map data © OpenStreetMap contributors.
How to Choose a Drainage Company in London: What to Ask Before You Book
Before you book a London drainage company, ask three things: does a CCTV survey come before any repair, is a coded written report included, and is the quote itemised after the survey?
Drainage in Merton — FAQs
How quickly can you attend a blocked drain in Merton?
Same-day appointments are usually available in Merton, and next-day almost always. If a drain is actively backing up, tell us when you book — active blockages are prioritised.
Do you charge if the job takes longer than expected?
No hidden extras. Every visit in Merton is quoted before we start, and the price is agreed for the job, not billed by the hour after the fact.
Can you provide a CCTV survey report for a house purchase or insurer?
Yes — dated CCTV survey footage and a written defect report are available for every Merton visit, formatted for conveyancers and loss adjusters.
Which parts of Merton do you cover?
All of it — including Wimbledon, Mitcham, Morden, Raynes Park, Colliers Wood. We cover every London borough, so coverage never depends on which side of a postcode line you live.
Read before you book
Drainage guides
How to Choose a Drainage Company in London: What to Ask Before You Book
Before you book a London drainage company, ask three things: does a CCTV survey come before any repair, is a coded written report included, and is the quote itemised after the survey?
ReadThe Real Cost of Cheap Drain Unblocking in London: A Technical Assessment
A cheap, one-off drain unblocking often masks deeper problems, leading to repeat callouts and higher long-term costs. We explain why a diagnostic CCTV survey is the only cost-effective starting point.
ReadNo Clear, No Charge: Our Diagnostic Approach to Drain Clearance Explained
Our 'No Clear, No Charge' policy means you only pay for a successful drain clearance, verified by our diagnostic CCTV survey. It's a commitment to transparency and results-based service.
ReadCCTV Drain Surveys for Insurance Claims: A Step-by-Step Guide
Insurers want the cause, location and extent of drain damage in writing. A coded CCTV drain survey report supplies all three, and this is how it is put together, step by step.
ReadSigns of a Blocked Drain at Home: What Each Symptom Tells You
Slow drainage, gurgling, bad smells and water rising in one fixture when another drains are the main signs of a blocked drain. Each one narrows down where the blockage sits.
ReadDrain Clearance Methods Explained: Rodding, Suction and Water Jets
Our engineers detail the core methods of professional drain clearance, explaining how we use CCTV surveys to diagnose blockages and select the most effective clearance technique.
ReadDrainage services across London
Drain trouble in Merton?
Tell us the symptoms and your postcode. Fixed price agreed before we start, no surprises on the day.
Book a drainage visit