Planned Preventative Maintenance (PPM)

At Subscan we take care of essential drainage maintenance for clients through the UK. PPM work ensures that drainage systems continue to work efficiently and minimises any potential damage or blockage.

With our PPM work we can accurately assess the condition of all drains and complete any essential repair work before a major issue arises. With the use of our bespoke CCTV drainage technology and specialist drainage inspectors we can carefully assess even the most difficult to reach areas.

  • Minimises any disruption to businesses
  • Reduces the chance of costly repairs due to negligence
  • Ensures system is working at maximum performance
  • Extends drainage life expectancy
  • Avoids costly and time-consuming excavation work

Importance of maintenance

PPM work is essential to successfully maintain complex and highly expensive drainage solutions. Drainage is something that is often taken for granted when it is working as expected, but to ensure its performance, essential maintenance work is required.

PPM is an integral part of many clients programmes to ensure that social and financial losses are kept to a minimum

Why Subscan?

At Subscan we work with you to establish a time that is least disruptive to your business’ daily operations – remaining prompt and professional at all hours of the day. With cutting edge technology on hand for all sectors, Subscan can provide comprehensive sewer and drainage maintenance service including specialist work on drains, culverts and watercourses. At Subscan we are constantly developing and implementing advances in modern technology to enhance the way we provide maintenance work to all clients.

Case Study

Outwood Academy

Project type:
CCTV Drainage survey and unblocking

Easingwold, York


As part of the project we completed a comprehensive CCTV drainage survey to identify and clear any debris and blockages. All work was completed on time and within the programme of works.

Outwood Academy contacted Subscan to determine if we could resolve an issue they were having with flooding on the Academy roof and ground areas.

To identify the cause of the flooding we surveyed all the down pipes using our CCTV drainage survey to identify if they were clean and free from structural damage.  During this process we also identified blockages within the tennis courts that required emptying but had access issues.

To clear the blockages our team of engineers used a Cityflex Vacuumation Unit to clear the blockages and access stacks by means of Core drill & Install Fernco Inspection Point to empty the gullies and associated drainage within the tennis court areas.

All works were completed on time within the programme of works.

Client Testimonial

“The Subscan UDS team of surveyors and drainage engineers helped our minor works team out again and did a thoroughly professional job. We will continue to work with Subscan on LNE projects throughout the region.”

Lee Sanderson, Building & Civils Project Manager, Construction Marine Ltd