Questions to Ask About a Pest Control Guarantee Before You Book

The questions to ask about a pest control guarantee are four: which species is covered, when the cover actually starts, what voids it, and what you get if the pests come back. Ask all four on the phone before you book, and ask for the answers in writing. A firm that answers plainly is telling you how it works.

What should you ask about a guarantee before booking?

Ask four questions, in this order: which species does the guarantee cover, how many visits are included before cover begins, what will void it, and what happens if the pests return. Each one has a factual answer that a competent pest control company can give in a sentence over the phone. Ask a fifth as a closer — will you send the terms in writing before the visit?

Species and start date define what you have bought. Voiding conditions and the return-visit rule define what you can actually use, and they are the two a vague company will skate past.

Which species does the guarantee cover?

A pest control guarantee normally covers the same species at the same property, and nothing else. If mice were treated and mice return within the cover period, that is a guarantee visit. If cockroaches turn up eight weeks later, that is a new job at a new price, because cockroaches were never treated and never covered.

Ask the company to name the species in the written terms rather than accepting "pests" as a category. Ask three follow-ups where they apply:

1. Is the cover per species or per treatment? A property treated for rats and mice in one appointment may be covered for one, not both.
2. Does the guarantee cover the whole property or only the treated area? Flats, converted houses and shared roof voids are the common friction point, because rodents move between units.
3. Does the guarantee cover a re-infestation from outside? A new entry point found after the treatment often falls outside the terms.

How many visits are included before the guarantee starts?

Most rodent and bed bug jobs run two or three visits over several weeks, and the guarantee period usually starts only once the final visit is complete and the company signs the job off. A treatment cycle is not a guarantee period — that is the distinction most customers miss. Book on a Monday and the clock may not start for a month.

Ask directly: how many visits are in the cycle, and does the guarantee period run from the first visit or from sign-off? Then ask what happens if you miss the last visit — in most terms, an incomplete cycle means no cover at all. The British Pest Control Association's Codes of Best Practice expect member companies to work to a defined treatment programme with records kept, so the visit count should be something a company can state without checking.

What will void a pest control guarantee?

Ask for the list of voiding conditions before you book, not after the pests return. Five conditions appear in most written terms: preparation not completed, follow-up visits missed, amateur products applied between visits, recommended proofing declined, and access refused. Each one is reasonable from the company's side and each one is easy to trip over by accident.

The amateur-product clause catches people most often. A shop-bought bait or spray applied between professional visits can move rodents off the bait points or scatter a bed bug population, giving the company a defensible reason to say the programme was compromised. Professional and amateur products are authorised for different users, so a product you can buy in a shop is not the product the technician has laid. Ask what you are permitted to do yourself between visits, and write the answer down.

What happens if the pests come back?

Ask three things: is the return visit free, how many return visits are included, and how quickly will someone attend. "We'll come back out" is not an answer to any of them. Some terms include unlimited visits inside the period, some include one, and some include labour but charge again for materials. The other half of that answer is how quickly the re-treatment itself is finished once it begins, because a free revisit that restarts a three-week follow-up cycle costs you far more time than one closing the problem in a single attendance. Ask as well whether a guarantee visit is attended the same day you report the sighting or slotted into the next routine round, because those are two very different promises hiding behind the same free revisit.

Response time is the part worth pinning down, because a return visit in four weeks is no use with a wasp nest over a doorway. Compare whatever you are told with how the same company words its ordinary emergency attendance, which is usually the plainest language on its website: 247 Pest Control states that it responds to emergency enquiries 24/7 across Greater London but that the attendance time cannot be identical for every call. The purpose of that visit is to establish what the pest is, what treatment the property actually needs, and the soonest date the work can be done. Wording of that kind is more useful than a promised hour, because it tells you what actually governs the visit — distance, traffic and how many jobs are already booked.

Is the guarantee in writing, and what document will you receive?

Ask what document you will receive and when, because a verbal guarantee is very hard to enforce. What you want is a written statement naming the species, the property, the start date, the length of cover, the voiding conditions and the return-visit rule — on a quotation, a job sheet or a set of terms and conditions. Ask for it before the visit, not after.

A trader must give the consumer specified information before the contract is made where it is agreed over the telephone or at the customer's door — which covers almost every pest control job booked by phone or agreed at your kitchen table. Ask about cover and price in the same breath: 247 Pest Control advertises a No Reinfestation Guarantee and publishes bed bug control from £234 and a pest inspection from £62 for straightforward domestic work. A guarantee named on a website tells you that cover is offered, and a published starting price does not state how many visits it covers, so the period, the voiding conditions and the return-visit rule are still yours to ask for in writing.

What does a good answer sound like, and what does an evasive one sound like?

A good answer names a number, a period or a document. An evasive answer names a feeling. The questions to ask about a pest control guarantee only work if you can tell the difference on the phone, so here is how each one sounds on both sides.

What does a good answer sound like, and what does an evasive one sound like?

Your question	A good answer	A warning sign
Which species is covered?	"Mice only, at this address, named on the job sheet."	"We cover you for pests."
When does cover start?	"After visit three, when the technician signs the job off."	"From when we start work, roughly."
How long does it run?	"Three months from sign-off."	"Don't worry, we look after our customers."
What voids it?	"Missed follow-ups, DIY products, declined proofing — they're in the terms."	"Nothing, really."
What if they return?	"Free return visits inside the period, unlimited, materials included."	"We'd sort you out."
Will I get it in writing?	"It's on the quote I'll email before the visit."	"It's all standard, no need."

Two warning signs matter more than the rest. A company that says nothing voids the guarantee has either not read its own terms or is not planning to show them to you. A company offering cover with no treatment programme behind it — one visit, long guarantee, no follow-up — is selling reassurance rather than pest control.

What rights do you have even if there is no guarantee?

Consumer rights exist whether or not a guarantee is offered. A service must be performed with reasonable care and skill, and where it is not, you are entitled to have the work done again. Those rights come from the contract itself, so a company offering no guarantee is not automatically the wrong choice.

Guarantee length is easy to advertise and hard to compare, so judge the method first. A technician who inspects properly, identifies the species, completes the full programme and proofs the entry points leaves you better off than a long guarantee attached to a rushed visit.

What else do people ask about pest control guarantees?

Is a pest control company legally required to offer a guarantee in the UK?

No. There is no requirement in the United Kingdom for a pest control company to offer a treatment guarantee. The service must still be carried out with reasonable care and skill, and where it is not, you have a right to have the work done again. A guarantee is a commercial add-on to those rights, not a substitute.

Can I cancel a pest control booking made over the phone?

Yes, in most cases. A booking made over the telephone, online or at your door carries a 14-day cancellation right. If you ask for work to begin inside those 14 days, you can be charged for what has already been done. Get the cancellation terms in writing when you book, and keep the email.

Should I ask about bait being left down permanently?

Yes. Ask whether ongoing cover depends on bait remaining in place, because the CRRU UK Code of Best Practice restricts permanent baiting as a routine measure rather than a justified one. A guarantee that quietly assumes indefinite baiting may not be deliverable. Ask instead what proofing and monitoring the company will do once the treatment programme finishes.

Should I rule out a company that offers no guarantee?

No. A company offering no guarantee may simply be declining to promise something it cannot control, such as re-entry from a neighbouring property. Compare the method instead: inspection, species identification, number of visits, proofing recommendations and record-keeping. The British Pest Control Association's Codes of Best Practice describe those working standards, and its member register is public and checkable.