What Does a Pest Control Guarantee Actually Cover?
"We guarantee our work."
Every pest control company says it. But when the mice come back three months later or the bed bugs reappear after treatment, what does that guarantee actually get you?
The answer varies wildly depending on the company, the pest, and the fine print you probably did not read.
What a Good Guarantee Includes
Re-treatment at No Extra Cost
The core of any legitimate pest control guarantee: if the pest returns within the guarantee period, the company comes back and treats again without charging you. This should include:- Additional visits as needed until the problem is resolved
- The same level of treatment (not a reduced "touch-up")
- No hidden callout fees or service charges
A Defined Time Period
Good guarantees specify a clear timeframe:- Mice: 3-6 months (longer if exclusion work was included)
- Bed bugs: 30-90 days after the final treatment
- Cockroaches: 3-6 months
- Wildlife (squirrels, raccoons): 1-2 years on exclusion work
- Ants: 3-6 months (seasonal guarantees are common)
- Wasps: Remainder of the season (nests are annual)
Clear Conditions
A reputable company will tell you upfront what can void the guarantee:- Failure to follow preparation instructions (common with bed bugs)
- Failure to seal entry points that were recommended (common with mice)
- New construction or renovation that creates new entry points
- Hoarding conditions that prevent effective treatment
- Introduction of new pests from outside sources (e.g., bed bugs from travel)
What a Bad Guarantee Looks Like
No Written Documentation
If the guarantee is verbal only — "don't worry, we stand behind our work" — it is worth nothing. Get it in writing. A legitimate company puts the guarantee terms on the invoice or contract.Unrealistic Promises
"Guaranteed to eliminate all pests permanently." No company can promise this. Pest control is management, not eradication. New mice will always try to enter. New bed bugs can be introduced from travel. A guarantee covers the treatment for the current infestation, not a lifetime of pest-free living.Hidden Exclusions
Read the fine print. Some guarantees exclude:- Follow-up visits (the guarantee only covers the initial treatment)
- Different pest species (your mice guarantee does not cover rats)
- Different areas of the home (treated the kitchen but not the basement)
- Seasonal limitations (the guarantee expires when the season ends, regardless of when treatment was performed)
Conditions That Are Impossible to Meet
Some companies include conditions that are designed to void the guarantee:- "Guarantee valid only if all recommended services are purchased" — upselling disguised as guarantee conditions
- "Unit must be free of all clutter" — an impossible standard for most homes
- "All pets must be treated for fleas" — shifting the burden to the customer
How to Compare Guarantees
When getting quotes from multiple pest control companies, ask these specific questions:
1. What is the guarantee period? Get the exact number of months. 2. What does re-treatment include? Same treatment or a reduced version? 3. How many re-treatments are included? Unlimited or capped at a number? 4. What voids the guarantee? Get the conditions in writing. 5. Is the guarantee transferable? If you sell your home or break your lease, does the new occupant benefit? 6. Is there a written guarantee document? If not, move on.
The Guarantee You Should Negotiate
The best pest control guarantee is one that aligns the company's interests with yours. If their treatment fails, they should bear the cost of fixing it — not you.
Here is what to push for:
- Minimum 3-month guarantee for any treatment
- Unlimited re-treatments within the guarantee period
- Written terms on the invoice
- Clear, reasonable conditions (not designed to void the guarantee)
- For exclusion work (sealing entry points): minimum 1-year warranty on the physical work
Frequently Asked Questions
Does a guarantee cover a new infestation from a different source?
Generally no. A mouse guarantee covers mice re-entering through the same pathways. If you renovate your kitchen and create a new entry point, that is a new issue. A bed bug guarantee covers the treated infestation — if you travel and bring home new bed bugs, that is a new introduction.What if the company goes out of business during my guarantee period?
You lose the guarantee. This is a risk with very small operators. Established companies with years of operation and strong reviews are more likely to honor long-term guarantees. Ask how long the company has been in business.Got a pest problem?
Extermination DMP serves Montreal, the South Shore, Laval & the West Island — 24/7.
Call 438-879-5706