When buying a house, most people focus on the obvious: the roof, windows, boiler, and electrics. But there’s a hidden network of pipes beneath every property that’s often overlooked until something goes wrong. A CCTV drain survey can reveal problems that standard home surveys miss entirely.
What is a CCTV Drain Survey?
A CCTV drain survey involves inserting a small, waterproof camera into your drainage system. The camera travels through the pipes, recording high-definition footage of their condition. This allows drainage engineers to identify blockages, damage, and potential problems without any digging.
Why Standard Home Surveys Don’t Cover Drains
When you get a homebuyer’s survey or even a full building survey, the surveyor examines the visible and accessible parts of the property. Drains, being underground and hidden, fall outside their scope. Unless there’s visible evidence of a problem (like damp or subsidence), drainage issues won’t be flagged.
Common Problems Discovered During Drain Surveys
Tree Root Ingress
Tree roots naturally seek out moisture, and your drains provide exactly that. Roots can infiltrate pipe joints and cracks, eventually causing complete blockages or pipe collapse. Properties with mature trees nearby are particularly at risk.
Collapsed or Broken Pipes
Older properties often have clay or pitch fibre pipes that deteriorate over time. A CCTV survey can reveal cracks, breaks, or complete collapses that would require excavation and repair.
Displaced Joints
Ground movement, traffic vibrations, or poor installation can cause pipe joints to separate. This allows waste to leak into the surrounding soil and can eventually lead to subsidence.
Incorrect Connections
Sometimes properties have illegal or incorrect connections, such as surface water drains connected to foul sewers or vice versa. This can cause compliance issues and potential fines.
Fat and Debris Buildup
Even if there’s no structural damage, significant buildup in the pipes can indicate future problems and may need addressing before you move in.
The Cost of Not Surveying
Drain repairs can be extremely expensive, particularly if excavation is required. Here are some typical costs:
- Simple drain unblocking: £80–£200
- Drain relining: £1,500–£3,000
- Excavation and pipe replacement: £3,000–£10,000+
- Full drainage system replacement: £10,000–£20,000+
A pre-purchase CCTV survey typically costs a fraction of these repair bills and can save you from inheriting someone else’s expensive problem.
Using Survey Results in Negotiations
If the CCTV survey reveals issues, you have several options:
- Negotiate a price reduction to cover repair costs
- Request the seller fix the issues before completion
- Walk away if the problems are too severe
- Proceed with full knowledge and budget for repairs
Many of our Manchester customers have negotiated thousands off their purchase price after our surveys revealed drain problems the seller wasn’t aware of.
What to Look for in a Survey Provider
Choose a drainage company that provides:
- Full HD camera footage you can keep
- A detailed written report
- Clear explanation of any issues found
- Recommendations for remedial work
- No-obligation quotes for any repairs needed
At Manchester Blocked Drain Co, we provide comprehensive CCTV drain surveys across Manchester and surrounding areas. Our engineers explain exactly what they find and provide honest advice about any issues.
We offer a dedicated pre-purchase drain survey specifically for home buyers — carried out before exchange so you’re fully informed and have evidence to negotiate with. The report is produced to a standard accepted by solicitors and mortgage lenders.
If a survey reveals damage, we also offer professional drain repairs to resolve problems quickly.
Not yet sure about the warning signs to look for? Read our guide on 7 warning signs you have a blocked drain — many of the same indicators apply when viewing a property.
Book your pre-purchase CCTV drain survey today by calling 0161 282 8080 or contact us online.