Mice Control — Peterborough

Scratching in the Walls at Night in Peterborough: Could It Be Mice?

In a commercial building the noise is rarely in one place, because the void it is in is rarely in one place either.

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The domestic version of this question is about one house. In a commercial building, an office, a school or a block, the same noise raises a different question: how far does that void go?

Where the Noise Usually Is

  • Suspended ceiling voids, which typically run across a whole floor plate and frequently across unit boundaries
  • Service risers, carrying pipes and cables vertically through every floor
  • Raised access floors in offices, which are a continuous void with everything in it
  • Ducting and containment runs
  • Roof voids in single-storey and low-rise buildings
  • Behind cladding and boxing, internally
  • Plant rooms and comms rooms, which are warm, quiet and full of penetrations
Why the location of the noise is not the location of the problem. A ceiling void heard from one office may be entered from the waste area at the other end of the building, or from the neighbouring unit through a party wall the void passes straight through. Treating the room the noise is in is treating a symptom — and it is the commonest reason a commercial rodent problem recurs.

What It Usually Turns Out to Be

SoundUsuallyWhere to look
Light, fast, after dark, in a ceiling voidMiceDeliveries, service entries, voids behind equipment, the party wall
Heavier, along a line, under a floor or in a ductRatsWaste area, drainage, delivery doors
Heavy, in daylight, in a roof voidSquirrelThe roofline, and anything reaching it
Fluttering near the eaves in springNesting birdsThe eaves and roofline, and note they are protected while nesting
Ticking with the heating or the plantNot an animalPipework, ducting and expansion

What to Do About It

  1. Log it: where, when, what it sounded like, who heard it. In a commercial setting the log is part of the answer.
  2. Establish how far the void runs — the building drawings, or a look above a ceiling tile at each end.
  3. Look for physical evidence above ceiling tiles, in risers, in plant rooms and at goods-in.
  4. Do not put down a retail product and do not deal with it quietly.
  5. Get it surveyed and documented, because that record is what an inspector or an auditor will ask for.

The Neighbour Question

In a parade, an industrial terrace or a mixed-use block, it is worth knowing what is next door. A food business, a waste area or an empty unit on the other side of a party wall changes the diagnosis, and a treatment confined to your unit will not hold if the void passes through.

Where that is the situation we will say so in writing, and a document setting out why a building-wide approach is needed is frequently what actually moves a managing agent.

And the Reason Not to Leave It

Cable. Rodents gnaw, and a commercial ceiling void or riser carries power, data and fire alarm runs across the whole building. Stripped insulation on any of it is a risk in a building full of people, and it is entirely out of sight.

Common Questions

We can hear scratching above the ceiling tiles. What is it?
Light, fast movement after dark is usually mice. The more important question is how far that ceiling void runs, because it frequently crosses unit boundaries.
Why does treating our unit not fix it?
Because the void it is in probably passes through the party wall. A treated unit beside an untreated one gets repopulated.
Should we deal with it in-house?
We would advise not. An undocumented attempt with a retail product leaves nothing to show an inspector, and that absence causes more difficulty than the rodents do.
How urgent is it?
Ceiling voids and risers carry power, data and fire alarm cabling across the whole building, and rodents gnaw. That is the reason not to leave it.

Mice Control in Peterborough

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More on Mice Control in Peterborough

The service page for Peterborough, the other advice for this area, and every price we charge.

Mice Control Across Cambridgeshire

The main Mice Control Cambridge page covers the service in full.

Mice Control in Peterborough

Tell us what you have seen and where, and we will give you the treatment and the price before anything is booked.