8 Questions to Ask Before Signing a Pest Control Contract

1. What a good quote covers

Identification of the species and evidence for it.

Identification of entry points and harbourage.

The treatment proposed, the products used and their safety implications.

Proofing and exclusion work to prevent recurrence.

The number of visits included and what triggers additional charges.

A quote covering only treatment is addressing the symptom.

2. Why exclusion matters more

Removing a population without closing the access route means another arrives.

Proofing is a one-off cost; repeat treatment is indefinite.

For rodents this means sealing gaps with materials they cannot gnaw, and addressing drainage defects where relevant.

3. Contracts

Ongoing contracts suit commercial premises with continuous risk.

For a domestic property, a contract is frequently unnecessary once the problem is resolved and the access closed.

Check the notice period and whether it renews automatically, which many do.

4. Safety questions worth asking

Which products will be used, and the implications for children, pets and food preparation areas.

Whether bait stations are tamper-resistant and where they will be placed.

How long areas must be avoided after treatment.

What happens to any carcasses, particularly in wall cavities where they cause odour.

5. Verifying the contractor

Membership of a recognised pest control association.

Technician qualifications and insurance.

For work involving protected species — bats in roofs, for instance — specific legal restrictions apply and specialist advice is required.

6. Landlords and tenants

Responsibility depends on the cause and the tenancy terms; infestations arising from disrepair are typically the landlord's.

Report in writing and keep the record, since establishing when the problem began matters.

Local authorities provide pest control services in many areas, frequently cheaper than commercial providers and sometimes free for certain pests.

7. Preparing before treatment

Ask what preparation is required — clearing cupboards, covering aquariums, removing pet food and bedding — since inadequate preparation reduces effectiveness.

Plan where children and pets will be during and after treatment.

Ask for the product safety data sheets if anyone in the household has respiratory problems or allergies.

8. Judging whether it worked

Agree in advance what success looks like and over what period.

Ask for a follow-up inspection rather than assuming absence of sightings means resolution.

Keep a note of activity dates, which helps the technician and evidences the outcome.

Final Thoughts

Removing a population without closing the access route guarantees another arrives. A quote covering only treatment is addressing the symptom, and proofing is the one-off cost that ends the problem.