The main signs of rats in the ceiling are scratching or scurrying noises at night, droppings in the roof space or cupboards, gnawed wiring and insulation, grease marks along beams and pipes, and a strong ammonia smell. Act quickly: rats chew electrical cables, which is a fire risk, and breed rapidly.
What are the signs of rats in the roof?
- Scratching, running or gnawing noises, mostly at night
- Droppings: rat droppings are about 1 to 2 cm, mouse droppings much smaller
- Chewed electrical wiring, pipes, ceiling boards or insulation
- Dark grease smudges along beams, pipes and entry holes
- Nests of shredded insulation, paper or fabric
- A strong ammonia or musty smell
- Pets staring at or pawing at the ceiling or walls
Is it rats or mice?
Rats are larger and heavier, so the noise sounds like thumping or dragging, and their droppings are bigger and capsule-shaped. Mice sound lighter and faster and leave small, rice-sized droppings. Both need treating, but rats usually require stronger bait stations and more attention to entry points.
How do rats get into the ceiling?
Rats climb trees, walls and downpipes, and get in through gaps under roof tiles, broken air vents, gaps around pipes and gutters, and open eaves. A rat can squeeze through a gap about the width of your thumb; a mouse through even smaller gaps.
What should I do about rats in the roof?
- Do not ignore it: rodent numbers grow quickly
- Keep food, pet food and bird seed in sealed containers
- Trim branches that touch the roof
- Call a professional to place lockable bait stations and identify entry points
- Seal entry points once activity has stopped
Frequently asked questions
Are rats in the ceiling dangerous?
They can be. Rats chew electrical wiring, which can cause fires, contaminate surfaces and food, and can carry diseases.
Why are there more rats in winter?
Cold, wet weather drives rats indoors looking for warmth, shelter and food, so infestations often start in autumn and winter.
Will rats leave on their own?
Rarely. Once they have food and shelter, rats stay and breed. Professional baiting and sealing entry points is the reliable solution.
Need help now? Cape Shield Fumigation offers rat & mouse control across Cape Town and the Western Cape. Call or WhatsApp 066 575 0079.