Questions to ask a pest controller before you pay

The stories people tell about pest control that went wrong sound alike. Visit after visit with no change. A technician who “found no evidence” while the traps kept filling. A guarantee that turned out to cover less than it sounded. A quote that was hard to compare with the next one.

Most of that can be headed off before you pay, with a handful of questions. A good pest controller will answer all of them without fuss. One who will not is telling you something too.

Before the visit: the inspection

1. Will you inspect before you treat, and is that in the price? A plan made without looking is a guess.
2. Where will you look? For cockroaches: inside and behind kitchen units, around appliances, bathrooms, pipe runs. For bed bugs: bed frames, seams, skirting boards, furniture near the bed. For mice and rats: the outside of the building as well as the inside, because that is where the ways in are.
3. How will you confirm what it is? The species changes the plan. A German cockroach needs a different approach from one that wandered in from the drain, which is why getting the ID right comes first.

Help them help you. Have your dated photos, a log of sightings and your monitor trap counts ready. A dead specimen in a sealed bag beats any description. Our evidence checklist works just as well for a pest controller as for a landlord.

What will you use, and why?

• Which products, by name? Ask for the labels or safety sheets. You will want them later if anyone feels unwell, and our safety page explains why the label always comes first.
• Why this method for this pest? For German cockroaches, ask whether the plan uses gel bait and a growth regulator, and how they will avoid spraying over the bait. For bed bugs, ask how they will reach the frame and furniture, not only the mattress.
• For mice, rats or other animals: how will you stop them getting back in? Ask what entry points they will seal and with what. Say plainly that you do not want poison or glue traps used. A humane service will not push back.
• Does anything change because of who lives here? Babies, children, pets of any kind, pregnancy, asthma. Tell them before they quote, not on the doorstep.

Kids and pets: ask how long everyone must stay out, when treated rooms can be used again, and what to do with toys, bowls, cages and fish tanks. Get the answer in writing. The product label decides, and how long to stay out after spraying has the questions in full.

How many visits, and what happens after the last one?

German cockroaches and bed bugs often need more than one visit. That is normal. Paying for visits that change nothing is not. Ask:

• How many visits do you expect, and how far apart?
• Are the follow-ups in the price, or charged one by one?
• How will we know it is working? What counts as finished?
• If we still see them after the last visit, what happens, and does it cost extra?
• If the first plan is not working, will you change it, or repeat the same thing?

That last one matters. Repeating a treatment that is not working is how people end up with a year of visits. Our answers on cockroaches after pest control and bed bugs after treatment go through the usual reasons.

What do I need to do, before and after?

Ask for the preparation list in writing. For bed bugs it can be long: bedding, clothes, clutter. Skipping it is one of the common reasons treatment fails, so it is better to know now than find out on the day.

Then ask about afterwards. Which spots should you leave uncleaned, and for how long? Can you vacuum? Should you stop using your own sprays? The answer to that last one is usually yes, because shop sprays can spoil bait and make it hard to tell whether the treatment is working.

Will I get a written report?

Ask for one after every visit. It should say what they found and where, what they used and where they put it, what they recommend (repairs, sealing, preparation), and when they will come back.

A report protects you. If you rent, it is evidence for your landlord. If you change company, the next one knows what has been tried. If someone feels unwell, the product names are right there.

When they say “no evidence found”

It is one of the most frustrating things to hear when you are still seeing pests or still waking up with bites. It does not always mean someone is wrong. An inspection is a snapshot of one visit, and small numbers hide well.

Ask what they checked and how. Ask them to note your own evidence in the report, even if they did not see it themselves. Then keep collecting: traps checked on the same day each week, interceptors under bed legs, a specimen if you catch one. Dated counts change the next conversation. See no bed bugs found, still bitten and saw one cockroach.

What does the guarantee actually cover?

“Guaranteed” can mean a lot of things. Ask for it in writing, then check:

• Is it a free return visit, a refund, or both?
• How long does it last, from which date?
• What are the conditions? Preparation done, access given, no other products used, neighbours treated?
• For proofing work, does it cover the repair if animals get back in? Rats after proofing shows why that matters.

Will the flats around mine be treated?

In a block of flats or a shared house, this may be the most important question of all. Cockroaches and bed bugs move between homes. Treat one flat and the neighbours can send them straight back.

Ask whether they will inspect the flats on either side, above and below, and who has to arrange access. Often that is the landlord or building manager, not you. If you rent, put the question to them in writing too. More in cockroaches from next door.

Are you licensed and insured where I live?

The rules differ a lot. Some countries and states license pest controllers. Some require a qualification to use professional products. Some have only voluntary trade bodies. Ask what licence, qualification or membership they hold, ask to see it, and ask whether they carry insurance for work in your home. Your council or national regulator can tell you what applies locally.

Signs to keep looking

• They will not name the products they plan to use.
• They quote without asking a single question about your home.
• The guarantee exists only in conversation.
• They push you to sign today.
• They offer poison or glue traps for animals, or an ultrasonic plug as the fix.

When you compare quotes, compare like for like: the same number of visits, the same follow-up, the same guarantee. A cheap single visit can cost more in the end than a plan that includes the return trip. Comparing bed bug quotes works through an example of this, and DIY or pro helps if you are not sure you need a professional yet.