CCTV Drain Survey

Comprehensive CCTV drainage inspection surveys for commercial and industrial sites across the UK – detailed digital reports, highly qualified engineers, and market-leading survey equipment

Professional CCTV Drain Surveys for Commercial and Industrial Sites

A CCTV drain survey is the most reliable and cost-effective method of diagnosing and locating drainage problems without the need for disruptive excavation. By deploying specialist camera equipment directly into the drainage system, our engineers can identify the precise nature, location, and severity of any defect — providing you with the clear, accurate information needed to plan the most appropriate and cost-effective course of action.

Drain Alert carries out CCTV drain inspection surveys for commercial and industrial clients across the UK. Our surveys cover a wide range of drainage assets, from standard commercial pipework through to large-diameter sewers, culverts, and industrial drainage infrastructure. All findings are delivered in a detailed digital report, together with high-quality video footage, giving you a permanent, auditable record of your drainage system’s condition.

Market-leading survey equipment. Tractor crawler systems reaching up to 250 metres. Sonar pinpoint depth location to the nearest centimetre. Full digital reporting in MPEG, JPEG, and PDF formats.

What Can a CCTV Drain Survey Identify?

Our CCTV drain surveys are capable of identifying a comprehensive range of drainage defects and conditions, including:

  • Broken, cracked, or collapsed pipes: Including hairline fractures identified with our high-resolution camera systems
  • Tree root ingress: Root penetration through joints and cracks that causes blockages and accelerates structural failure
  • Displaced or open joints: Separated pipe joints that allow groundwater ingress and void formation in the surrounding ground
  • Blockages and build-up: Accumulations of grease, silt, debris, scale, or foreign objects restricting drainage flow
  • Corrosion and pipe deterioration: Surface degradation, spalling, and material breakdown in older pipework
  • Foul and surface water cross-contamination: Incorrect connections or cross-overs between foul and surface water drainage systems
  • Rogue or redundant pipework: Undocumented, abandoned, or incorrectly connected pipes within the drainage network
  • Pollution and contamination: Evidence of trade effluent discharge, pollution ingress, or drainage system misuse

Market-Leading Survey Equipment

Drain Alert invests in market-leading CCTV survey technology to ensure every inspection delivers high-definition video footage and precise, reliable data — regardless of the size, condition, or accessibility of the drainage system being surveyed.

Our equipment includes:

  • Tractor crawler systems: Purpose-built crawler cameras capable of travelling up to 250 metres along large-diameter sewers and culverts from a single access manhole — providing comprehensive coverage of extensive drainage networks with minimal surface disruption
  • Flexible push-rod cameras: Compact, highly manoeuvrable camera systems capable of negotiating tight bends, gully traps, and confined access points where larger systems cannot reach
  • High-resolution imaging: All our CCTV systems deliver high-quality video with excellent resolution, enabling our engineers to identify every defect — including hairline cracks — with precision and confidence
  • Sonar depth location equipment: Once a defect is identified on camera, our latest sonar equipment pinpoints its exact position on the surface and its precise depth to within one centimetre — saving significant time and cost when targeted repair or excavation is required

Highly Qualified Survey Engineers

Our CCTV drain survey engineers have extensive experience working alongside surveyors, consultants, civil engineers, and local authorities on drainage projects of all scales. All our survey operatives hold the qualifications required to work safely and effectively across a full range of commercial and industrial drainage environments, including confined spaces and deep sewer entry.

Water Training International (WTI) Sewer Coding Qualification

Safe Working in Confined Spaces

Deep Sewer Man Entry Traversing with Full BA (Airline)

New Roads & Streetworks Act 1991

CAD Drainage Drawing Production

Detailed Reports and Full Digital Deliverables

Every Drain Alert CCTV drain survey is accompanied by a comprehensive written report and a full set of digital deliverables. Our reports are produced to professional standards, and are suitable for use in planning applications, drainage design submissions, asset management records, insurance claims, and regulatory compliance documentation.

Standard survey report content includes:

  • Duty of drain: Foul water, surface water, combined, or trade effluent
  • Direction of flow
  • Pipe diameter and material
  • Invert depths and manhole record cards (STC25)
  • Connectivity investigations: Including dye testing, sound testing, and Sonde CAT locator surveys
  • Identification of rogue, redundant, or additional pipework
  • Foul and surface water cross-contamination findings
  • Pollution tracing results
  • Water collection and laboratory analysis: Where required for trade effluent or contamination investigations
  • Sewerage treatment plant, septic tank, grease trap, and oil interceptor condition reports
  • Drainage drawing mark-up, updating, and amendment
  • Investigation findings for failed drainage tests

All video footage and report data are digitised and delivered on CD or DVD, providing a permanent and easily shareable record of your drainage system’s condition.

Drainage Assets We Survey

Our survey capability extends well beyond standard commercial pipework. Drain Alert’s experienced operatives are qualified and equipped to survey a wide range of drainage infrastructure, including:

  • Foul water, surface water, and combined drainage systems
  • Trade effluent drainage
  • Culverted watercourses
  • Reservoir penstocks and overflow channels
  • Shafts, chambers, and access structures
  • Storage tanks and interceptors
  • Manholes and inspection chambers

When Do You Need a CCTV Drain Survey?

A CCTV drain survey is a valuable tool in a wide range of commercial and industrial situations. Common reasons our clients commission a survey include:

Pre-Purchase Due Diligence

Assess the condition of drainage assets before acquiring a commercial or industrial property.

Planning Applications

Demonstrate the condition and capacity of existing drainage as part of a development planning submission.

Investigating Recurring Blockages

Identify the root cause of persistent drainage problems that cannot be resolved by jetting alone.

Insurance Claims

Provide independent evidence of drainage failure or damage to support an insurance claim.

Pre-Construction Surveys

Establish a drainage baseline before construction work begins — protecting against claims of damage during works.

Drainage System Adoption

Satisfy the requirements of a water company or local authority prior to adoption of a new or existing drainage system.

Asset Management and Maintenance Planning

Build an accurate, up-to-date picture of your drainage network to inform long-term maintenance and investment decisions.

Pre-Lining and Repair Design

Gather the precise data required to design a CIPP relining solution or targeted structural repair.

Commission Your CCTV Drain Survey

Whether you need a straightforward drainage inspection or a comprehensive multi-asset survey with full reporting, Drain Alert has the equipment, qualifications, and experience to deliver. Contact us today to discuss your requirements and receive a competitive quotation.

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