May 21, 2026
Skills renewal vital to counter subsidence threat, Catalyst’s Paul Duddle tells conference
With more subsidence data available than ever before, having the right expertise to use...
CCTV drain surveys, drain unblocking and drain repairs for insurers, brokers, loss adjusters and property professionals
Catalyst supports insurance claims specialists with drain investigations, CCTV drain surveys, drain and sewer unblocking, and drain repairs.
We help insurers, insurance brokers and loss adjusters resolve drainage-related claims quickly, safely and cost-effectively, from first notification and technical assessment through to repair, reporting and completion.
Our teams work directly with claims professionals and policyholders to identify the cause of drainage problems and recommend the right remedial action.
We then manage each job throughout the claim journey with clear communication to control costs, minimise disruption and achieve the best outcomes for all parties concerned.
Our in-house experts project manage every job from start to finish, giving insurance clients confidence that each claim is professionally assessed, transparently handled and fully accounted for.


Talk to Catalyst about drainage support for insurance claims.
Insurance professionals need drainage specialists who can do more than carry out the work. They need a partner who can help move claims forward quickly, provide clear technical evidence, manage costs and deliver a good experience for the policyholder.
Catalyst supports insurers, brokers and loss adjusters with:
Catalyst provides a complete drainage response service for fast and efficient processing of insurance claims, from first notification of loss through to claim closure, including:
We select the right solution for each claim so drainage issues can be resolved quickly, safely and with the right level of technical evidence.
We are also experts at repairing, rehabilitating, replacing and maintaining off-mains drainage systems, such as septic tanks and sewage treatment plants. For more information, go to our dedicated Septic Tank Services Page.
Catalyst supports:
Our teams understand the different pressures each party faces during a claim and work to keep the process efficient, transparent and customer-focused throughout.
Drainage claims need fast action, accurate diagnosis and clear reporting. Catalyst achieves this at every stage of the claims journey by:
Our qualified claim handlers understand drainage systems and customer care.
Their technical knowledge and service skills are continuously developed through our internal training academy, helping us deliver a fast, thoughtful and professional service for both insurance clients and their customers.
We also support our insurance partners by proactively sharing insight, delivering drainage system training where needed, and providing service data in the format required.
The starting point for any drainage claim is a thorough investigation. Catalyst has the technology and expertise to identify the cause of drain or sewer problems quickly and accurately, so the right remedial action can be taken without delay.
Timely and accurate drain investigations support prompt and appropriate claims decisions. By selecting the right survey method at the outset, Catalyst helps insurance clients understand the issue, assess the likely remedy and avoid unnecessary delay or disruption.
In many cases, remote investigation can remove the need for exploratory excavation, saving time and reducing cost.
A CCTV drain survey is often the quickest and least disruptive way to identify the cause of a drainage problem. The main alternative is exploratory excavation, which is slower, more expensive and more disruptive to the property.
In some cases, excavation may not even be possible, particularly where the drain is located beneath a building. By using trained surveyors and selecting the right technology for each job, Catalyst keeps investigation work proportionate and focused. That helps control drainage claim costs while still delivering the information needed to make the right decision.
A CCTV drain survey is often the most effective way to inspect drains and locate faults. Our drainage engineers guide specialist cameras through the drain system to inspect the condition of the pipe internally.
This allows us to identify issues such as blockages, cracks, displaced joints, root ingress and collapsed sections, even when the fault is beneath a building or in another difficult-to-access location.
Using CCTV survey technology means the problem can often be diagnosed without causing disruption to the property.

Pushrod CCTV drain survey camera

Robotic CCTV drain survey camera

Drain
dye tests

3D drain and
manhole scanning

Drain
tracing
CCTV drainage technology does more than identify faults. It also provides the evidence needed to support good claims decisions.
Our engineers can produce detailed drain survey reports containing the information needed to assess the condition of the drainage system and determine what action is required.
Our CCTV drainage survey engineers will send such a report to the expert team at Catalyst so we can quickly assess what further steps need to be taken to resolve any problems identified.
A CCTV drain survey report may include:
These reports are reviewed by the expert team at Catalyst so we can assess the findings quickly and recommend the most appropriate next steps.


Need support with a drainage investigation or CCTV drain survey?
Catalyst uses a wide range of drain and sewer unblocking techniques to deal with blockage problems quickly and professionally.
Our aim is not just to remove the immediate blockage, but to understand the cause and reduce the risk of the problem happening again.
Blocked drains can lead to slow-draining sinks, baths and toilets. In more serious cases, wastewater can back up and cause internal flooding or sewage contamination. Fast response and the right technical approach are therefore essential.
Understanding who is responsible for a blocked or faulty sewer is important when handling drainage claims. Where a blockage or defect sits within a sewer maintained by the water utility company, we advise the policyholder on the next steps and help ensure the issue is passed to the correct organisation as quickly as possible.

Drain
jetting

Tree root
removal

Robotic
cutting

Electro-mechanical pipe cleaning

Drain
rodding

Drain
excavation
Catalyst uses a range of specialist tankers, including jet vac tankers and bulk liquid vacuumation tankers, to complete drainage work quickly and with minimal disruption.
These may be used to remove:
Waste material is transported for safe disposal at an authorised site.

Build up of oil, fat and grease (FOG) and food waste in pipes leading from kitchen.
Ground movement, either subsidence or heaving, causing pipes to sag (slowing water flow), crack, become displaced, or collapse.
Tree roots getting into pipes, often through cracks and displaced joints.
Cracked drain pipes and displaced joints creating snagging points for debris, which then allows further material to build up.
Partial of full collapse of pipes, often caused by the movement of vehicles above them.
Period products and other items, including wipes, being wrongly flushed down toilets.
Poorly installed pipes.
Leaves, other vegetation or silt being washed into drains, or all three.
Build-up of scale and other mineral deposits inside pipes.
Pipe systems not having the capacity to cope with changes to buildings – additional structures, change of use or more intensive use.
Catalyst teams have the expertise to identify the cause accurately and recommend the most appropriate and cost-effective solution.
Catalyst deploys experienced and reliable teams to carry out drain repairs quickly and efficiently. Prompt repairs reduce the risk of further property damage, health hazards, environmental pollution and escalating claim costs.
Broken drains can allow wastewater to leak into buildings or the surrounding ground.
They can also allow groundwater into the system, reducing the pipe’s capacity and creating further operational problems. Leaving damaged drains unresolved often leads to more costly issues later.
Remote access no-dig drain repair methods can significantly reduce the cost, disruption and inconvenience associated with drainage claims. In many cases, rehabilitating a pipe with cured-in-place pipe lining is quicker and less disruptive than excavation and replacement.
For insurance clients, this can support faster resolution and a better customer experience.

Patch liners are short lengths of liner material used to repair isolated defects such as cracks or localised damage.
Once installed and cured, the patch creates a durable internal repair that restores the integrity of the pipe.
Where damage extends along a longer section of pipe, a full liner may be the better option.
This creates a new pipe within the existing pipe, restoring performance without the need for excavation in many cases.
Catalyst drainage teams select the most appropriate cured-in-place pipe lining system for each job. This includes choosing the right curing method for the pipe size, location and nature of the repair.
Ambient cure
Often used for shorter or narrower drain pipes.
Hot water and steam cure
Typically used for larger drains, culverts or sewer pipes.
Ultraviolet light (UV) cure
A highly efficient option using UV light to cure the liner.
LED light cure
Well suited to smaller diameter pipes, downpipes or pipes with sharper bends.
Excavation and replacement
Used where a drain has collapsed or lining is not suitable.
The cost of a drain repair depends on factors such as:
Catalyst uses its investigation expertise to assess the system properly before recommending a solution. We then provide a firm price or a clear estimate where appropriate, so customers and claims professionals can see exactly what is needed and why.
This clarity helps build confidence that only necessary work will be carried out and that it will be completed to a high standard.
At a certain point in the drainage network, responsibility for pipework passes to the water utility company.
When a blockage or repair issue sits within that part of the system, Catalyst advises the customer accordingly and helps ensure the matter is directed to the right organisation.
We can liaise with the utility company on behalf of householders and businesses, providing the information needed to help resolve the issue as quickly as possible.
Catalyst provides drain investigations, CCTV drain surveys, drain unblocking and drain repairs for the insurance industry.
Helping business and domestic customers every day of the year
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