Damp, Mould & Leak Investigations  ·  0800 054 1524  ·  WhatsApp Us  ·  London & Surrey

When Do You Actually Need a CCTV Drain Survey?

A camera down a drain sounds like overkill, until you’ve paid to clear the same blockage three times. Here’s when a CCTV drain survey genuinely earns its money.

The clear cases

  • Recurring blockages: clearing removes the symptom; the camera shows the cause (roots, scale, a belly in the pipe, a collapsed section).
  • Damp appearing near drain runs: a cracked drain can feed “mystery damp” into walls and floors for years. Pairing a drain survey with a damp survey catches it.
  • Persistent smells: often a fractured or poorly-connected pipe venting under the property.
  • Rats indoors: broken drains are the classic entry route.
  • Buying a house: drains are expensive to replace and invisible on a standard survey.

What you get

Recorded footage, the fault located and measured (position + depth), and a written report suitable for insurance or purchase negotiation. If the drain fault has caused internal leaks or damp, we investigate that too: leak detection.

Blocked drain inspection: sewage and silt buildup
Blocked drain found during a DML inspection.

Think this is happening in your home? 📞 Call free: 0800 054 1524 · 💬 WhatsApp: 07733 019492 · or send us a message. We cover London & Surrey, every inspection is quoted based on the job and the price is confirmed before we attend.

Last reviewed: 27 October 2026. Independent investigation and written reports. Repairs are quoted separately.