Black mould looks bad, and it can contain fungi that cause health problems such as asthma and allergies. In some cases, black mould may produce toxins that cause reactions in people.
Mould it can appear as the result of water ingress from faulty drainage. When this is the case, a CCTV drain survey is key in discovering the source of the problem.

Damp Issues
Who do people call when they have issues with damp and mould? You might turn to a builder for recommendations about fitting a damp proof course. But if the cause of the damp is persistent leakage from faulty or broken drains, then this will not necessarily give you a long-term solution
Here’s a recent case from Drainage Solutions, all about damp. We’d been called to various properties next to one another because the landlord had numerous complaints from the tenants regarding damp issues.
This included tenants having to regularly scrape black mould off the walls. The smell of damp was also persistent in many of the properties, with tenants having to keep their windows open to alleviate the odour.

A Broken Gully and Drain Defects
We conducted a comprehensive drain surveys at the properties, and found a common fault affecting all of them.
The main drain line running beneath them was full of defects, which meant water was leaking out into the ground and causing the damp issues the tenants were experiencing.
We also discovered a broken drain gully, which was also the source of water escaping to cause damp in the properties.
From our CCTV drain survey, we put together a comprehensive report for the landlord. From this we could then proceed with fixing the cause of the damp problem.
We applied patch liners along the length of main pipe where there was deterioration, damage and defects. We also replaced the old, damaged gully.
The drainage repair and replacement work solved the damp problem in the properties.
If you have damp issues, or black mould, the fault may lie with your drainage system. Before you commit to the expense of a damp proof course, consider a CCTV drain survey – it might just provide you with the answers you need, and us with the solution to your damp problems.
Contact Drainage Consultants today.

Whose drain is causing the leak? This is a question we are often called in to answer, when neighbours are in dispute over damp issues.
We were called in recently over a dispute between commercial properties over a continuous flood into a basement, where our client was being held responsible.
Drainage networks are often complex, and old, making it difficult determine from the surface, exactly whose drain is at fault, depending on where in the system a fault is located.

The Drain Survey Solution
When it becomes a matter for both Environmental Health and solicitors, then a drainage problem quickly escalates, with blame and counter-blame.
We see it as our job to bypass all this and get to the heart of the matter: what is causing drainage problems.
As drainage professionals, there are different ways for us to approach this. We can use sonar drain tracing, we can use dye testing, and we can use a CCTV drain survey.
In many situations, we need to employ a combination of all these techniques to detect and diagnose a drainage problem.
In this case, we first carried out a CCTV drain survey on our client’s drainage system.
The survey revealed a defect in the drain, but not necessarily the cause of the continuous leaking of water into the neighbouring property’s basement.
The defect was from a joint in the network which was damaged and now open. We fixed this by applying a patch. The patch liner repair is what it sounds like, a patch of material, impregnated with epoxy resin, inserted into the point of the drain with a packer where there is damage. Once in position, the packer inflates, fixing the patch to the inside of the drain, and patching over the damage.

Further Investigations
We needed to be sure that our client’s drains were not the source of the leak into the neighbour’s basement. For this reason, we then used dye testing. We filled the client’s entire drainage system with bright green dye, keeping it in the place for 30 minutes.
This would tell us if any of the water from our client’s drainage system was escaping next door, as it would be the same, dyed colour if it was.
We checked the neighbouring basement, but the water leaking into it was clear, and therefore not from our client’s drainage network.
Drainage investigations are not always just to solve a drainage problem – they can also resolve issues around responsibility for drainage and leaks.

Schools can be complex buildings, which require a high degree of maintenance. During term time, anything disrupting the smooth running of a school, such as a blocked drain, can have an impact on both pupils and staff.
Therefore, it is often in a school’s best interests to undertake preventative maintenance during school holidays, to minimise the risk of disruption during term time.
For this reason, Drainage Consultants undertakes preventative maintenance, including a drain survey, for schools in the Stockport area.

Potential Drainage Issues for Schools
Not all school buildings are modern, which makes regular maintenance a must for drains. Old drainage systems often end up with root infestation and cracked pipes.
With the amount of use drains in schools typically get, foul and blocked drains are also an all-too common occurrence, as are blocked downpipes and guttering.
Emergency drainage issues and the need for on the spot repairs are likely to be disruptive during term time, and while these situations may be unavoidable in some instances, taking preventative measures will help lessen the chances of this happening.
Regular maintenance during school holidays is, therefore, key. Schools should always ensure their drainage systems are prepared for the new school year.

How We Help Stockport Schools
As part of a preventative drain maintenance programme, we visit the majority of schools in the Stockport area and conduct a thorough drain survey of each.
For below ground drainage checks, we schedule visits during the summer holidays or half-term break so that we do not disrupt the daily running of the school when pupils are in attendance.
A drain survey will reveal any weaknesses in the school’s drainage network, including damaged pipes and blockages. We can then schedule in remedial work during the school holiday period
We also check gutters and carry out high level gutter cleaning. This is a vital job after the autumn, when leaf fall can easily block gutters and, if left, cause blockages to drains.
If schools have clean and efficient drainage systems after regular, preventative maintenance, this can save on repairs, and disturbance, at a later date.

Not Just for Schools
All buildings can benefit from preventative drain maintenance, whether commercial or people’s homes.
Drains can become less efficient over time with a build-up of materials blocking them; or they can be damaged below ground without you knowing, leading to leaks that can undermine a building’s foundations.
If you think your drains aren’t at their best, or you have an old drainage network you’d like checking out, give Drainage Consultants a call.