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Diagnostics

Rats in Drains — Investigation & Sealing

Kill traps only work if the rats can't come back. We stop them at the source.

Rats get into houses through broken lateral drain connections left over from disused outbuildings, coal chutes and Victorian additions. Trapping alone doesn't fix the problem — the rats keep coming. We CCTV survey the drainage, seal the entry points and, where useful, fit non-return valves to prevent re-entry.

Warning signs

  • Scratching sounds in cavity walls
  • Droppings near drainage voids
  • Damage to insulation
  • Pest control has trapped multiple rats

Common causes

  • Disused lateral drain connection open to open ground
  • Cracked pipework under a floor
  • Broken air-admittance valve in a loft
Our process

How we handle rats in drains — investigation & sealing

01
Full CCTV
Map every lateral and disused connection.
02
Seal open ends
Cap unused connections permanently at the manhole.
03
Repair defects
Patch or line any cracks that allow ingress.
04
Non-return valve
Where appropriate, fit a non-return valve to the incoming main.

Kit we bring

  • HD CCTV
  • Sealing caps and epoxy
  • Non-return valve stock

While you wait — do

  • Combine drainage sealing with a pest-control programme

Please don't

  • Don't rely on trapping alone — the rats always come back if the drain is open

Common questions

Do I need a pest controller too?
Usually yes — we seal the entry point, they remove the existing infestation.

Blocked drain? Not for long.

Speak to a real engineer in under 20 seconds. 24/7, 365 days a year.

Call 24/70330 1331 347
Call 0330 1331 347