Case Study: CCTV Drainage Survey for a Historic Property in Farnham

Farnham is renowned for its stunning Georgian architecture and leafy surroundings. However, these beautiful historic properties often hide a complex network of aging clay drainage pipes. Recently, the CleverWorks team was called out to a period property in the heart of Farnham (GU9) experiencing persistent blocked drains. Here is how our expert CCTV Drainage Survey uncovered the root of the problem.

The Problem: Recurring Blockages in a GU9 Property

The homeowner contacted us after experiencing multiple blockages over a six-month period. Despite using chemical unblockers and basic plunging, the issue kept returning, causing slow-draining sinks and unpleasant odours around the property exterior. Given the age of the property and the presence of several large, mature oak trees in the garden, we immediately suspected structural issues rather than a simple build-up of fat or wipes.

The Solution: A Comprehensive CCTV Drainage Survey

To accurately diagnose the issue without unnecessary excavation, our local Farnham engineers deployed our state-of-the-art crawler camera system. A CCTV Drainage Survey is the only definitive way to see exactly what is happening underground.

During the survey, we fed our high-definition camera into the main drainage run. The live feed immediately revealed the culprit:

• Severe Root Ingress: The roots from the nearby oak trees had found their way into the joints of the old clay pipes, seeking moisture. Over time, these roots had grown into a dense mass, blocking 80% of the pipe's diameter.
• Displaced Joints: The pressure from the growing roots had caused several pipe joints to displace, creating lips where waste was catching and building up.
• Minor Cracking: We identified minor longitudinal cracking along a 2-metre section of the pipework.

The Outcome: No-Dig Drain Repair

Because we had conducted a thorough CCTV drain survey, we could pinpoint the exact location and extent of the damage. This meant we didn't have to dig up the client's beautifully landscaped Georgian garden.

First, we used specialist electro-mechanical root cutting equipment to clear the root mass and restore full flow. Then, to prevent the roots from returning and to seal the displaced joints and cracks, we installed a structural CIPP (Cured-In-Place Pipe) patch liner. This "no-dig" repair essentially creates a new, tough pipe within the old one.

Why Local Knowledge Matters in Farnham

Drainage systems in Farnham, particularly around the town centre and older villages like Wrecclesham and Badshot Lea, require careful handling. Our engineers understand the specific challenges posed by local soil types and historic clay pipework.

If you are experiencing recurring drainage issues in the Farnham area, don't ignore them. A professional CCTV drainage survey is the most cost-effective way to diagnose the problem before it leads to a major collapse.