Mice in the Walls: Removal in Fort Lauderdale

Older stucco homes near downtown Fort Lauderdale, the kind of houses with wall voids mice use — Older homes have furred walls, chases and soffits that give mice room to travel.

The sound is a light scratching or scurrying inside a wall, usually at night, sometimes near the kitchen or behind the bed. Mice live inside walls because walls are dark, warm and connected to everything: the kitchen cabinets, the attic, the plumbing and the garage.

UF/IFAS says house mice usually stay within 10 to 30 feet of their nest. So the nest is close to the noise, and the food source is close to the nest. The job is finding where they enter the wall space and where they come out to eat.

What people usually notice first:

Scratching or rustling in a wall at night
Droppings under the sink or in the back of a lower cabinet
A pet staring at or pawing one stretch of wall
Gaps around pipes where they enter the wall

What a thorough mice-in-walls job includes

Mice in the walls are almost always reached from the edges: under cabinets, behind appliances, through the attic or from the garage. Cutting into walls is rarely needed. A good job includes:

Tracing the noise to a wall section and the spaces around it
Checking under sinks, behind the stove, dishwasher, fridge and washer
Checking where walls meet the attic and the garage
Traps at the points where mice leave the wall to eat
Sealing pipe and wire openings with chew-proof material
Sealing the outside entry points so new mice can't follow

Step by step

This is the usual order:

Find droppings and noise locations and map them
Pull the toe-kick panels and look under the cabinets where possible
Set traps along the edges where mice come out of the wall
Seal the inside openings once trapping is underway
Find and seal the outside entry, often at the garage, slab edge or roofline
Return to check traps until they stay empty

Noises in the ceiling after dark? Describe what you're hearing.

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Your call goes to an independent local rodent control provider in Broward County. Same-day appointments are often available.

Why it's harder in Fort Lauderdale homes

Many Broward homes are concrete block with drywall furred out on the inside. That leaves a narrow gap between block and drywall where mice can run from the slab to the attic. Plumbing often comes up through the slab under the sink, with a gap left around the pipe. In condos, walls back up to the neighbor's unit and to shared chases.

The garage is the other common link. Water heaters, washers and freezers often sit in the garage here, with pipes and wires running into the house. A worn door seal lets mice in, and the shared wall does the rest.

Don't poison mice in the walls

Poison seems easy when you can't reach the animal. Then a mouse dies inside the wall and the smell lasts for days. Traps at the exits let you remove the bodies. If something has already died in a wall, see dead rat smell removal, which covers mice too.

Is it really mice?

Other things make noise in walls. Roof rats in a wall are louder and heavier, and their droppings are much larger. Squirrels are active in the daytime. Water hammer and expanding ductwork make ticking and knocking sounds that follow the AC or plumbing, not the clock. Lizards and geckos get into walls in South Florida too, but they're quiet.

The surest test is droppings. Look under the sink, in the back of lower cabinets and behind the fridge. Mouse droppings are tiny and rod-shaped. If you find none, mention that on the call. Rodent noises at night breaks down the sounds.

Condos and townhomes

In a shared building, the mouse in your wall may live in your neighbor's unit. Sealing your side still helps, since it closes the paths into your kitchen and closets. Report it to management in writing, and ask whether the building's provider can check the units on either side and the shared plumbing chase. Condo and apartment rodent work explains who usually handles what.

Common questions

Will they have to open my walls?

Rarely. Most mice can be trapped where they come out to eat, and entry points get sealed from the cabinets, attic or outside.

Is it mice or rats in my wall?

Mice sound lighter and their droppings are about an eighth of an inch. Rats are louder, and roof rat droppings run up to half an inch.

Why do I only hear it at night?

UF/IFAS notes rodent sounds are usually heard at night or in quiet areas. That's when mice are most active and when the house is quietest.

Can I put traps inside the wall?

Usually you can't reach in, and you don't need to. Traps go at the edges where the mice come out.

How long does it take?

UF/IFAS says mice usually approach traps the first night, so activity often drops quickly. Sealing the way in is what keeps it down.

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