How Urgent Is a Pest Problem? What Can Wait and What Shouldn’t
By Henry, Taff Pest Control · Reviewed October 2026
Droppings behind the bin or a wasp nest over the back door tend to bring one question first: how urgent is this, really? Usually less than it feels. A few pest problems shouldn’t wait. Many can sit for a day or two. The rest build steadily, over weeks rather than hours. The sections below sort common pests into those three groups, with what to do safely in the meantime.
What shouldn’t wait
A wasp nest by a door, path or play area, where someone is allergic to stings or there are small children. That’s a nest to have treated soon rather than lived with. Wasps defend the approach to their nest. Until it’s dealt with, use another door if there is one, and keep children and pets out of the wasps’ flight path.
If anyone has a severe reaction to a sting (swelling of the lips, mouth or throat, or difficulty breathing), call 999. The nest comes second.
Worth planning for: treatment doesn’t calm a nest at once. The wasps stay stirred up for hours, often into the next day, while confused foragers return. That doorway stays out of use a little longer.
Rats in the kitchen or the rooms you live in. Rats indoors, rather than out in the garden, are worth acting on promptly, whatever the time of year. An indoor rat means a way in, quite often a damaged drain, and it stays open until it’s found. Their gnawing is heavier than a mouse’s too: a chewed cable is a fire risk as well as a clue. Not sure it’s rats? Our rat or mouse comparison covers the tells.
Pests in a food business. In a cafe, takeaway or any kitchen serving the public, rats, mice or cockroaches near food belong here too. Meanwhile, cover or move stock and bin anything gnawed or soiled, so nothing affected reaches a plate. Noting where and when signs appear tells us where to start.
What can wait a day or two
Plenty of problems can sit for a day or two without meaningfully changing. That covers a mouse or two in the kitchen, moth or carpet beetle damage and an ant trail to the sugar. Cluster flies at an autumn window belong here too, as does a wasp nest everyone can keep clear of. None of these is pleasant, but none will be a different job by the end of the weekend.
What builds up over weeks
Some problems don’t mind a day or two but do mind a month. Rats and mice breed steadily, so a few become a lot. Bed bugs spread from one bed to the next room. Cockroach egg cases keep hatching, and fleas multiply wherever a pet sleeps. None of it is sudden, so there’s time to have it looked at without a rush. A few days rarely changes the job. A few months usually does.
What to do in the meantime
| Pest | How urgent | Meanwhile |
|---|---|---|
| Wasp nest by a door, with an allergy or small children around | Shouldn’t wait | Another door; nobody in the flight path |
| Rats in the kitchen or living space | Shouldn’t wait | Food sealed away; photos of what you’ve found |
| Wasp nest you can keep clear of | Can wait | People and pets out of the flight path |
| Mice | Can wait; weeks make it bigger | Food in sealed tins or tubs |
| Ants | Can wait | Sweet things covered; the trail wiped away |
| Moths or carpet beetles | Can wait | Affected clothes bagged up |
| Cluster flies | Can wait | Flies at the glass vacuumed up |
| Rats in the garden | Builds over weeks | Bird food off the ground; compost bins closed |
| Bed bugs | Builds over weeks | No shop sprays; no moving rooms |
| Cockroaches | Builds over weeks | Food sealed; no shop foggers, which drive them deeper in |
| Fleas | Builds over weeks | A thorough vacuum; pets treated through the vet |
Don’t block a wasp nest’s entrance. Shut in, the wasps look for another way out, and that can be into the house.
Don’t spray bed bugs with a shop insecticide. It scatters them into the furniture and the next room, so professional treatment has more ground to cover.
Don’t put poison down where pets or children can reach it. Rodent bait is made to be eaten, and a dog or a toddler can find it as easily as a mouse.
Keep food sealed. Tins, tubs and closed bins take away the easy meal that keeps mice, rats, ants and cockroaches coming back.
How soon we can usually come
We don’t run an emergency service. Taff Pest Control is one person. Henry’s time goes into planned work, done properly: finding the cause, not just dealing with what’s in sight.
We aim to attend within two working days, often sooner, and we’ll tell you straight on the phone when we can get to you. For most problems on this page, that wait changes very little.
We usually reply to messages the same working day. From a photo, a short video of a noise or a quick call, we can normally tell how urgent yours is.
Common questions
Is one mouse worth calling someone about?
Yes, though not in a hurry. One mouse in sight usually means a few out of sight, and numbers build steadily. It’s a job for the coming week, not tonight, and sealed food helps most in the meantime.
Will a wasp nest die off if it’s left alone?
Eventually. A colony lasts one season: it dies out over the winter, and the nest is never used again. Late in the season, a nest you can keep clear of often needs no treatment. In early summer it still has months of growing ahead.
Bed bugs found at bedtime: what’s safe to do tonight?
Less than instinct suggests. Staying in your own bed is better than moving to the sofa, which only gives them a second place to settle. Bedding can go through a 60°C wash, which kills bugs and eggs alike, as long as it’s bagged up before it leaves the room. Photos will do more good than any spray.
Is it worth putting poison down while waiting for a visit?
For rats, usually not. A poisoned rat tends to die out of reach, often inside a wall, and the smell can last for weeks. For mice, the risk is loose bait within reach of pets or children. Our own bait never sits loose in a living space: it goes into a sealed, tamper-resistant station.
What if something turns up outside your hours?
Our hours are Monday–Friday 8:00–17:00 · Saturday 10:00–16:00. Outside these hours, WhatsApp or use the form and we’ll come back to you first thing. Most problems will keep until then.
Worth reading: when cost is the next question, our guide to pest control prices covers it.
Still not sure where yours fits? Message us a photo on WhatsApp, and we’ll sort it into one of the three.