Is it worth getting an exterminator for rodents?

Finding a mouse or rat in your home is never just a cosmetic problem. Rodents contaminate food, chew electrical wiring, cause structural damage, and carry diseases. Whether professional help is worth it depends on the scale of the rodent infestation but in most cases, a licensed exterminator will resolve the problem faster, more safely, and more permanently than DIY methods alone.

The short answer: yes, for most rodent infestations. A single mouse caught in a snap trap may not need professional intervention but if traps are not reducing activity (scurrying in the walls and/or sight of droppings in multiple areas), a professional exterminator is strongly recommended.

The real risk of a rodent infestation

Property owners underestimate how quickly a rodent problem escalates. One should consider the following:

• A single female mouse can produce 5 to 10 litters per year with an average 6 to 8 pups per litter. An infestation can grow from 2 mice to over 50 in a matter of months.
• Rodents chew continuously to wear down their teeth because they grow up to 15 cm (6 inches) per year. They will gnaw through electrical wiring, insulation, water pipes, and structural wood which can cause fire and flood risks to the property. Standard insurance policies do not cover damage by rodents.
• Mouse and rat droppings, urine, and dander are significant allergen and disease vectors, including Hantavirus (recent global case on a cruise ship), Salmonella, and Leptospirosis.
• Rodents that die inside walls create odour problems and attract secondary pest infestations including flies and beetles.

How does Do-It-Yourself vs Pest Management Professional compare?

Signs that You should call a Pest Professional Now

1. You are hearing scratching or movement inside walls: Usually at night, there will be sounds inside walls, ceilings, or under floors which 3indicate rodents have established nests inside the structure of your home. This cannot be resolved with surface traps alone and requires professional access and void treatment.

2. Traps have been set for more than two weeks without reducing activity: If you are consistently catching rodents but activity is not decreasing, the entry points allowing new rodents to enter have not been identified and sealed. A professional inspection and exclusion service is needed to stop the cycle.

3. You have found droppings in multiple rooms or areas: Widespread droppings indicate a large or well-established infestation. At this scale, trapping alone is unlikely to be sufficient and based on the extent of contamination, you may require professional sanitization in addition to removal.

4. You can smell a musty or ammonia-like odour A strong, persistent odour within kitchen cabinets, under sinks, or near the attic hatch means heavy urine soiling and a large population. Nesting material soaked in urine is a serious health hazard and requires professional cleanup.

5. You have found chewed wiring, pipes, or structural wood: Gnaw damage on electrical cables is a serious fire risk. Chewed water pipes can cause concealed leaks. If you have found structural damage, the infestation has likely been present for some time. We advise you call a pest professional for removal and electrician or plumber for an assessment/fix.

What does professional rodent control involve?

A licensed pest technician will carry out a full interior and exterior inspection to identify active entry points, nesting sites, and travel routes. Treatment typically includes:

• Strategic placement of snap traps and tamper-resistant bait stations (containing commercial-grade rodenticide) along active runways and near entry points.
• Exclusion work such as sealing gaps, cracks, and openings with steel mesh, expanding foam, and caulk to prevent re-entry.
• Removal of nesting material and sanitization of contaminated areas.
• Recommendations for reducing conditions that attract rodents (firewood storage, compost, bird feeders, vegetation near the structure).
• Follow-up visits to check trap activity and confirm the rodent infestation has been fully resolved.

What does rodent control cost?

A standard rodent treatment including inspection and installing bait stations typically costs $300 to $350. Exterior rodent exclusion work may add $200+ depending on the size of the home and the number of points requiring attention. Attic cleanouts for heavily soiled insulation are quoted separately and vary by scope.