Re: [DoES Liverpool] Help with a mousetastrophe!

[Dionne Simpson]

Hi Everyone,

Thank you for all the amazing suggestions and ideas! I really appreciate it :) I will keep you posted with any developments!

Best wishes

Dionne 

On Monday, 16 February 2026 at 22:26:12 UTC armon...@googlemail.com wrote:

I was told mice can come through cracks...

Yes, mice can easily come in through cracks, as they can compress their bodies to fit through gaps as small as 5mm to 10mm (about the size of a pencil). Due to their flexible skeletons and collapsible rib cages, they can enter through, under, or around foundations, brickwork, pipes,, and door frames. 

Key Facts on Mouse Entry Points:

• Gap Size: If a pencil can fit in a crack or hole, a mouse can too.
• Common Locations: Check foundation cracks, gaps around utility lines (pipes/wires), weep holes, damaged air bricks, roof vents, and gaps under doors.
• Agility: Mice can climb vertical surfaces and squeeze through holes high up, such as in roofs, gutters, and eaves.
• Prevention: Seal cracks with durable materials like steel wool, caulk, or metal mesh, as mice can chew through weaker materials. 

It is recommended to inspect the exterior of your property for any small, overlooked gaps, especially near service pipes or where different materials meet. 

On Sat, 14 Feb 2026 at 18:58, vicster dekann <vopom...@gmail.com> wrote:

Hey!

I had the same situation a couple of years ago...

Try spraying peppermint around the edge of the floor, if there are any holes (by a boiler; there's always a hole in the wall they can get in, kitchen base unit; may have holes) use Steel Wool or a Scourer to fill the holes. Mice hate steel wool and scourer - mini blades to them.

They may be coming in from the Vent on your outside wall...use the following...

Roshield Pest Proofing Air Brick Mesh Vent Cover | Mouse Insect Rodent Control Prevention x 2

As long as you fill the holes you're good.

As soon as I put the Air brick mesh vent cover outside and filled the holes, I was sorted.

I hope this helps

Vicki

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