If 90% of rat problems in homes and properties are drain related then at least half of these can be put down to human error, poorly installed drainage systems or systems that have been built over are the usual suspects.

Typical Defects

• Redundant drains/manholes beneath extensions and conservatories

• Redundant junctions not capped off or grouted

• Broken drainage adjacent to foundations

Investigation Techniques

• Full visual site inspection

• Full drain camera inspection of main line and branch drainage

• Smoke testing to locate points of ingress