Mainline Drains
Professional drainage engineer explaining drain repair options to customer

What Happens During a Drain Survey?

If you've booked a CCTV drain survey and aren't sure what to expect, here's a step-by-step walkthrough of the entire process. A standard residential survey is completely non-invasive, causes no mess or disruption, and typically takes 1–2 hours from arrival to completion.

What to Look For

  • Step 1: Engineer arrives and locates all accessible manholes and access points
  • Step 2: Brief walk-round to understand the property's drainage layout
  • Step 3: CCTV camera inserted into the first drain run via a manhole
  • Step 4: Camera travels through each pipe section recording HD footage
  • Step 5: Engineer monitors footage in real time, noting all defects
  • Step 6: Process repeated for each accessible pipe run on the property

How We Diagnose the Problem

After completing all pipe runs, the engineer reviews the footage and prepares a preliminary verbal report on site, discussing any significant findings with you immediately. The formal written report follows within 24–48 hours.

Think you might have what happens during a drain survey?? A professional inspection will confirm the diagnosis.

How We Fix It

You receive a comprehensive written report with annotated screenshots, full HD video, a drainage plan, and repair recommendations. If urgent issues are found during the survey, we can often provide an immediate repair quote and schedule work promptly.

How This Issue Is Normally Diagnosed and Repaired

Follow the typical path from problem identification through to resolution:

  1. 1Survey Cost
  2. 2Condition Reports
  3. 3Get a Free Quote →

Need a Professional Inspection?

If you're experiencing persistent issues, don't wait for the problem to worsen. Our engineers use proven methods to diagnose accurately. Call for emergency response or book a scheduled inspection.

Ready to book a drain survey? Here's exactly what to expect on the day.

What Happens During a Drain Survey? FAQ

What are the signs of what happens during a drain survey??
Step 1: Engineer arrives and locates all accessible manholes and access points. Step 2: Brief walk-round to understand the property's drainage layout. Step 3: CCTV camera inserted into the first drain run via a manhole.
How do you diagnose what happens during a drain survey??
After completing all pipe runs, the engineer reviews the footage and prepares a preliminary verbal report on site, discussing any significant findings with you immediately. The formal written report f...
How do you fix what happens during a drain survey??
You receive a comprehensive written report with annotated screenshots, full HD video, a drainage plan, and repair recommendations. If urgent issues are found during the survey, we can often provide an...

Need an Expert?

Get in touch today for a free, no-obligation quote. Our team is ready to help — 24/7.