What have you seen?

Guide

Before and after a treatment

Children, pets and when you can go back in.

How long you stay out after pest control depends on the product and where it went, so ask the technician for the re-entry or drying time before they start, and follow what the label says.

A puppy scratching its ear
A puppy scratching its ear.

What have you seen?

What have you seen?

Wasp nest or bees near people? Keep children and pets away. Trouble breathing after a sting: call 111.

Only one local pest business gets your number.

A puppy scratching its ear
A puppy scratching its ear.

Updated 3 November 2026 · Written by the Which Pest team · How we check our facts

If someone may have been poisoned

Call 111 if a person is unconscious, has difficulty breathing or looks very ill, or if a chemical is burning or stinging their eyes. If someone has swallowed a chemical, contact the National Poisons Centre on 0800 764 766 immediately, and don't make them throw up unless told to. If it's a pet, ring your vet now.

How long do you stay out?

There's no single number, and we won't make one up. It depends on the product, how it's applied and which rooms are treated. The technician will tell you any re-entry or drying time, and the product label is where that comes from.

The EPA's sheet on gardening products, which include pest sprays, is a useful guide for anything outdoors. It says to read the label to check how long to keep away from a treated area. If the label says nothing, keep children and pets away at least until the spray has dried.

Will it be all right for children and pets?

Nobody can honestly give you a blanket yes, so be wary of anyone who does. What you can do is give the technician the full picture. Tell them about kids, pets, allergies, fish tanks and veggie gardens, then ask which product they'll use, its full name, and for its safety data sheet.

A product's wording won't settle it either. The EPA says gardening products labelled natural or organic can still be hazardous. The re-entry time and the precautions are what count.

Pregnancy, asthma and other health concerns are worth raising on the call, before the visit. Our form doesn't ask about them, so it's up to you to tell the pest business. Your doctor or Healthline can talk it through.

Before the technician arrives

  1. Ask what's needed

    Every job's different, so ask for the list when you book. What follows is the usual shape of it.

  2. Put food and dishes away

    Clear benches and put food, cutlery and baby bottles in closed cupboards, or wherever the technician says. Bring in the pet bowls.

  3. Clear the edges

    Move what you can away from skirting boards, and clear under beds and sinks, so they can reach where pests travel.

  4. Sort the animals

    Make a plan for dogs, cats, birds and caged pets. Ask what to do about a fish tank, and whether it needs covering.

  5. Make the roof or subfloor reachable

    Clear the way to the ceiling hatch or subfloor access if they'll need it.

  6. For fleas, get ready differently

    Health NZ says to have any pets treated, vacuum the carpets and furniture pets use, and wash or throw out their bedding. Ask the technician how to time this around the visit.

When you get back

  1. Wait out the full time

    Stick to the re-entry time you were given, and keep children and pets off treated areas until the drying time has passed.

  2. Ask about airing the house

    Open windows if the technician suggests it.

  3. Hold off on the mop

    Ask before you wash skirtings, floors or the outside walls, because cleaning can remove what was applied. Do clean anything you were told to.

  4. Leave bait stations where they are

    They're locked for a reason. Keep children and pets away from them, and tell the technician if one gets moved or opened.

  5. Watch and note

    Jot down what you're seeing and where. If it hasn't improved by the time they said it would, ring them.

What to have before they leave

  • The full product name, and its safety data sheet if you asked for it.
  • Where it was applied, room by room.
  • The re-entry and drying times.
  • Anything you shouldn't clean, and for how long.
  • Whether a follow-up is booked.
  • What to do if you see the pest again.
  • Any warranty, and what it covers, in writing.

Baits, gardens and storage

Rat bait needs particular care. If a child swallows it, ring the National Poisons Centre on 0800 764 766, and if a pet does, ring the vet straight away. The EPA also says pellet-type garden products could be attractive to young children and pets.

If anything's been used near the veggie patch, the EPA says to check the label for how long to wait before eating what you grow. And if you keep your own pest products at home, Health NZ says to store them out of reach of children in a lockable cabinet. Keep them in their original packaging, never in a food or drink container.

Our advice for treatment day

Plan as if you'll be out longer than you expect. We'd take the kids and the dog somewhere for the afternoon, and take a photo of the treatment record before we left it on the bench. If anything seems unclear, ring the technician and ask. It's a two-minute call, and they'd rather you did.

Want someone to look at it?

Tell us what you've seen and your postcode, and a local pest business that handles exactly that calls you to talk it through.

What have you seen?

Kids, pets, pregnancy or a fish tank?

Tell the pest business before they start, so they can plan the treatment and tell you any precautions. These are the questions worth asking.

  • Which product will you use? Ask for the full product name.
  • Can I see its safety data sheet?
  • How long before people and pets can go back in?
  • What should I cover or move: fish tanks, pet bowls, the veggie garden?
  • Where will the bait stations go, and are they locked?
  • What does the written quote cover, and is there a follow-up visit?

Questions

Before and after a treatment: common questions

Can I go home the day of the treatment?

Often, but it depends on the product and where it was applied. Don't guess. The technician will tell you any re-entry or drying time, and you should ask for it in writing.

Will it be okay for my dog or cat?

Ask the technician before they start. Tell them which animals you have and where they sleep, then ask for the full product name and how long to keep them off treated areas. Cats and caged birds are worth mentioning by name.

What about the baby's room?

Say so up front. Health NZ says not to treat infant bedding or cribs during bed bug work. Ask what will happen in that room, and what needs to come out of it first.

Do I need to wash everything afterwards?

Usually not everything, and washing the wrong surface can undo the work. Ask which surfaces to clean, such as kitchen benches, and which to leave alone.

When can the kids play on the lawn?

Follow the label and the technician. If nothing says otherwise, the EPA's advice for gardening products is to keep children and pets away at least until the spray has dried.

Where this information comes from

Rules and advice change, so check the source before you act on anything here. How we write and check these pages.

What have you seen?