Rats and Mice: Signs to Look For and What Rodent Control Involves

What the difference changes

Mice are small, curious and stay close to home. A mouse may spend its whole life within a few metres of its nest and can live on crumbs with very little water, so a mouse problem is usually inside the home itself and is found by looking low and close: under the sink, behind the cooker, at the back of the lowest cupboard.

Rats range much further, need to drink every day and are wary: a rat avoids anything new on its route for days before it will approach. A rat problem usually starts outside the living space, in the garden, the roof, the drains or the bin area, and the animals commute in. The roof rat climbs, running along walls, cables and branches and entering at roof level. The brown rat digs, living in burrows and drains and entering at ground level. Signs in the ceiling point one way; holes in the flower bed point the other.

Droppings

Droppings are the commonest sign and the most useful. Fresh ones are dark, soft and slightly shiny. After a few days they dry, turn dull and grey, and crumble when pressed with a tool. Fresh and old together mean the route is in regular use. Old droppings only, in a home you have just moved into, may be the history of the last occupant. Size tells you mouse or rat, and quantity gives a rough idea of numbers, since a single mouse leaves dozens of pellets a day.

Look at the back of the cupboard under the sink, behind the fridge and the cooker, on top of wall cabinets, along the skirting in the store room, around the water heater and beside the bin. Do not confuse them with cockroach droppings, which are far smaller and look like ground pepper, or with gecko droppings, which are about the size of a mouse dropping but carry a small white tip.

Gnaw marks

A rodent's front teeth grow all its life, and it gnaws to keep them short as well as to reach food and to widen holes. Look for paired grooves on the corners of food boxes and plastic containers, on the bottom edge of doors and frames, on skirting, on plastic pipes and on cable sheathing. Fresh gnawing is pale, the colour of newly cut wood, and it darkens with age.

Gnawed cable is the sign to take most seriously, because damaged insulation behind an appliance or above a ceiling is a fire risk. Do not touch chewed wiring. Switch the circuit off at the breaker if you can identify it, and have the cable looked at as electrical work once the rodents have been dealt with.

Rub marks and tracks

Rodents use the same routes night after night, and the grease and dirt in their fur leave dark smears where they squeeze past the same point: around a hole, along a pipe, at the corner of a wall. A smear that is soft and comes off on a tissue is in current use. A dry, flaking one is old. In a dusty store room or roof space you may also see footprints and the thin line of a dragged tail.

To find out whether a route is active, sprinkle a thin, even patch of flour or talc on the floor along the wall in the evening and look for prints in the morning. It is harmless, and it gives a technician a precise place to start.

Noises, nests and smell

Scratching, scurrying or gnawing above a ceiling or inside a wall, mostly in the first hours after dark and again before dawn, is typical. Note which room the sound is above and at what time. Pipes ticking as they cool and AC ducts flexing also make noises at night, so treat sound as a reason to look for a second sign, not as proof on its own.

Nests are loose balls of shredded paper, cardboard, fabric or insulation, tucked into a warm place that nobody disturbs: behind the kickboard under the kitchen units, inside the back of a cooker or fridge, in a box of stored clothes. An established infestation also has a stale, musky smell with a sharp edge of ammonia, strongest in closed cupboards. A cat or dog that keeps returning to one spot along a wall is often the first member of the household to notice.

Burrows and other signs in the garden

Brown rats dig. A burrow entrance is a clean, round hole roughly 6 to 9 cm across, with smooth, hard-packed edges and often a fan of loose soil outside it. Look along the foot of boundary walls, under paving slabs, beside the bin store and under dense shrubs and hedges. An entrance in use is clear of cobwebs and leaves. To check, fill the hole loosely with soil or crumpled paper and see whether it has been reopened by the next morning. A narrow, beaten path through ground cover, tight against the wall, is the runway that leads to it.

Roof rats leave different evidence: gnawed or hollowed fruit and dates under trees and palms, droppings on top of walls and on roof ledges, smear marks where a cable or pipe enters the building at height, and noise in the roof space.

Food and water

Rodents eat almost anything that people and pets do. The usual supplies are an open kitchen bin, food kept in bags or cardboard, pet food left down overnight, bird seed, fruit and dates left where they fall, and bin bags put beside a full communal bin instead of inside it. A mouse needs only a few grams a day, so the crumbs under a toaster are a full diet. Buildings with restaurants or groceries on the ground floor, and homes beside shared bin rooms, carry more pressure simply because there is more food about.

In a dry climate, reliable water is what fixes rats to a site: a leaking irrigation line, AC condensate dripping into a permanent puddle, a pet's bowl left out, a dripping garden tap, plant saucers, a weeping joint under the sink. A garden watered every night is, to a rat, the one dependable drink for a long way around.

Shelter

Outside, shelter is anything that is rarely disturbed: stored building material, boxes stacked against the wall, an unused outside room, an overgrown hedge, a thick climber on the boundary wall, the crown of an untrimmed palm. Inside, it is the void under the kitchen units, the false ceiling and the cupboard nobody opens. A home closed for weeks over the summer gives rodents exactly the quiet they want, so check the store room and the kitchen cupboards on the day you return.

Building work nearby has the same effect in reverse. Excavation destroys burrows and removes cover, and the animals move to the nearest shelter. Homes beside a building site or newly cleared land often see a sudden rise in signs that has nothing to do with how the home is kept. In newer districts where whole streets are still going up, pest control for new homes near construction sites is part of the work we do.

Gaps

A mouse can pass through a gap you could push a pencil into, and a young rat needs little more than the width of a thumb. The common gaps are under external doors, around pipes and AC lines where they pass through walls, unscreened ventilation openings, the open ends of conduit, gaps at the roof edge and garage doors that do not meet the floor. Rats swim well and live in drainage systems, so a drain with a missing cover or a dry trap is a doorway.

What not to do

A few common reactions make things worse, and one of them is dangerous. Abu Dhabi Police has published a warning against unlicensed pesticides used in homes against insects and rodents (the page is in Arabic and was on its website in October 2026). It describes phosphide products that release a highly toxic gas on contact with moisture, and says there is no suitable antidote. A gas does not stay in the flat where it was released.

• Do not scatter loose bait, pellets or blocks around the home or the garden.
• Do not buy unlabelled powders, tablets or liquids sold informally for rats, and never let anyone use them in your home.
• Do not block a hole until you know whether animals are inside. Sealing rodents into a void leaves them to die there or to gnaw a new way out.
• Do not sweep or vacuum droppings dry, and do not handle a live or dead rodent with bare hands.
• Do not leave an open trap or a glue board on the floor where a toddler's fingers or a cat's paw can find it.

Who does the proofing

A technician normally points out the entry points found during the inspection and says what each one needs. Closing them is building work, not pest treatment, and it is usually arranged separately. Small jobs such as door strips, sealing around pipes and fitting mesh are handyman work, which we quote from photos before anything is done. In a rented home, openings in the structure are worth raising with the landlord.

The garden's part in a villa

In a villa the garden decides how much pressure reaches the walls. Keep a clear, visible strip between the planting and the house, so that nothing can travel to the wall under cover. Cut climbers and branches back from the walls and the roof, because a roof rat uses a branch as a bridge. Collect fallen fruit and dates every few days, take green waste away the same day instead of leaving a pile to become a nest, and fix irrigation leaks. Store nothing against the outside wall.

Regular garden maintenance covers much of this as a matter of course. Our gardening visits include hedge and shrub trimming, weeding and bed tidying, and a check of the irrigation, and the trimmings are cleared before the team leaves. If you have seen burrows or runways, say so when you book the garden visit, so the team leaves them undisturbed until the technician has seen them.

The inspection

Expect to be asked where and when you have seen signs, and then expect the technician to look for themselves: along the kitchen plinths and behind appliances, in the store room, above the false ceiling where there is an access hatch and, in a villa, around the outside of the building, the bin area, the drains and the garden. The aim is to answer four questions. Which rodent is it? Roughly how many are there? Where are they nesting and feeding? How are they getting in?

Traps and bait stations

Two tools do most of the work. Traps catch individual animals and are the usual choice indoors, particularly for mice and wherever a dead animal in an unreachable void has to be avoided. Bait is a poisoned food that rodents eat and die from some time later. It is used mainly outdoors and in service areas, and it is placed inside tamper-resistant stations: lockable boxes, opened with a key, with an entrance sized for a rodent and the bait fixed inside so that it cannot be shaken or carried out.

Placement is the skill. Stations and traps go on the routes the inspection found, tight against walls and between the nest and the food. Rats may ignore a new object for several days, so equipment is left in place and checked on return visits instead of being moved every night. A careful technician shows you where each station and trap is and tells you what to do if you find one disturbed.

Why bait belongs in locked stations, and with a professional

Rodent bait is made to be attractive to eat, and it is poisonous to people, cats, dogs and birds as well as to rats. A block or sachet left loose under a sink or in a flower bed is within reach of a crawling child or a pet, and rodents themselves carry loose bait off and drop it somewhere else. A locked station is what stands between the bait and everyone it was not meant for.

There are two further reasons to leave it to a trained person. The first is secondary poisoning: a cat, a dog or a bird of prey that eats a poisoned rodent can be harmed in turn. The second is where the animal dies. A poisoned rat does not leave the building to die. It may die in a ceiling void or behind a fitted unit, and the smell lasts for weeks. Trapping indoors and baiting outdoors, in secured stations, is the usual way of avoiding both problems.

If a child or a pet may have touched or eaten bait, treat it as urgent: contact a doctor or a vet straight away, and take the product label or a photo of the station with you. Tell us at booking about babies, pets, birds and fish tanks. The guide to pest control with children and pets at home covers the preparation.

Why one visit is rarely the whole job

An insect treatment can often be completed in one visit. Rodent control is a short programme by nature: traps have to be checked and reset, stations inspected, dead animals removed, and the signs read again to see whether activity is falling. A common pattern across the trade is a first visit to inspect and set up, one or more return visits over the following weeks, and a final check once fresh droppings, new gnawing and night noise have stopped. Where the pressure never stops, such as a shop beside restaurants or a villa backing onto open land, a scheduled arrangement often makes more sense, and you can ask about one when you book.

• Ask: which rodent is it, and where is it nesting?
• Ask: where are the entry points, and which of them are mine to close?
• Ask: is every bait point inside a locked station, and where are they?
• Ask: how many visits does the price cover, and how will we know the job is finished?

What to throw away, and what to do with a dead rodent

Discard any food that has been gnawed, that was in packaging with holes in it, or that sat open in a cupboard with droppings. Bag and bin cardboard and nesting material from the affected area. Sealed tins and jars can be kept once the outside has been wiped with disinfectant. A dead rodent is handled the same way as droppings: gloves on, spray the body and the area around it, pick it up with paper towels or an inverted bag, double-bag it and put it in the outside bin. A bite or a scratch from a rodent should be washed at once with soap and water and shown to a doctor.

When the clean-up is too big for a cloth

A few droppings in a cupboard are a ten-minute job. A store room or roof space that rodents have used for months is not: describe it when you book, with photos, so the scope can be confirmed before anyone starts. Where traps or stations are still in place, ask the technician what may be cleaned and what has to be left alone; the order is explained in cleaning after pest control. Once activity has stopped, a deep clean of the kitchen cupboards, the appliances and the skirting resets the home and removes the scent marks that would guide the next arrival along the same routes.

I saw one mouse. Is that an infestation?

Treat it as the visible part of one. Mice are rarely alone, they breed from a few weeks old and a female has several litters a year. Do the first-day steps and put down flour patches. If there are fresh droppings or prints after two nights, book the inspection. If a week of checking shows nothing new, it may have been a single animal that came in through an open door, and closing the gap under that door is the fix.

Will a cat, an ultrasonic repeller or peppermint oil solve it?

No. A cat may catch the odd mouse, but it does not reach a nest inside a wall, and its food left down overnight is one of the commonest things feeding the rodents. Ultrasound does not pass through walls or furniture, and rodents grow used to a constant sound. Strong smells fade within days and the animals use another route. None of these removes a nest or closes a hole, and those are the two things that end the problem.

How long does rodent control take?

Our service page gives 30 to 60 minutes for a standard apartment treatment, with villas, widespread problems and outdoor areas taking longer. For rodents, allow for return visits over the following weeks as well. The work is finished when there have been no fresh droppings, no new gnawing and no night noise for a sustained period, not when the first animal is caught.

Is it safe with children and pets in the home?

It can be made so, and this is exactly why the work is done with locked stations and enclosed traps placed out of reach. We use products approved for residential use. Ask to be shown where every station and trap is, keep children and animals away from those points, and do not move or open a station yourself.

There is a bad smell in the wall or ceiling. What now?

A dead rodent in a void produces a strong smell that builds over a few days and can last for weeks, often with flies appearing in the room. If the body can be reached through an access hatch or a kickboard, it can be removed and the area disinfected. If it cannot, the choices are to open the void, which may mean gypsum ceiling repair afterwards as separate work, or to ventilate and wait. Mention the smell when you book, because it changes where the inspection starts.

Can someone come today, and does it cost more?

Same-day visits are often available for an active infestation, depending on the day and how full the schedule is. We work every day from 8 AM – 8 PM, and a same-day visit, a Friday or a public holiday carries no surcharge and no call-out fee.