Rats can use drainage systems to travel between buildings and enter properties through damaged pipes, displaced joints, inspection chambers, toilets, floor drains, and service voids. If rats keep returning after treatment, drains should be considered as a possible access route.
Antiva provides CCTV drain surveys alongside rat control to identify the cause of recurring rodent activity.
Signs Rats May Be Using Drains
Rat activity returns after baiting or trapping
Droppings appear near kitchens, bathrooms, basements, or utility rooms
Scratching is heard under floors or near pipe routes
Rats are seen around inspection chambers or external drains
There are no obvious holes around doors, walls, or vents
Several properties in a block or terrace have activity
Why Drain Entry Is Often Missed
Standard pest control can reduce visible rat activity without finding the route in. If a damaged drain, unsealed chamber, or defective pipe remains open, new rats can enter after treatment.
A CCTV drain survey inspects the pipework and looks for defects, entry points, and evidence of rodent routes.
What a Drain Inspection Can Find
Cracked or fractured pipework
Displaced joints
Defective inspection chambers
Unsealed connections
Collapsed or damaged sections
Signs of rats using the drainage system
What Happens After the Survey?
Depending on the findings, Antiva may recommend rat blockers, non-return valves, drain repair, lining, proofing work, or environmental changes. The aim is to stop access, not create repeated call-outs.
When to Book
Book a drain inspection if rats keep returning, if activity is close to bathrooms or kitchens, or if the property is a restaurant, rental, care setting, hotel, school, or commercial site where recurrence creates higher risk.
Local rodent pages: rat control in Edinburgh, rat control in Glasgow, and rat control in West Lothian.