Rats exterminator in Laval and Greater Montreal

• • You hear scratching or clicking noises coming from the attic or basement at night
  • You see tracks or oily stains along the lower portion of walls
  • You find gnawed food containers and boxes
  • You notice chewed wires, doors, insulation and various other materials (plastic, wood, aluminum)
  • You discover urine and droppings that are approximately 1 to 1.5 cm in diamete.

  The damage caused by rats can look like the work of other insects and pests, so you may find it difficult to determine which type of infestation you’re dealing with. In general, rats nibble at anything in their way, much more than mice do. They also leave tracks forming two parallel and slightly notched lines with a space of about 4 millimeters between them.

Although both are rodents, rats are distinguished by their larger size and legendary caution: unlike mice, they test any new food source before consuming it in quantity, which complicates the use of poison. Rats also form larger colonies, with burrow networks in sewers and crawl spaces. This is why methods used for mouse extermination are generally not enough against rats.

Although the main character of the animated movie Ratatouille was a gentle soul who loved tasty stews and become top chef at a fancy Parisian restaurant, the sewer rats that invite themselves into your home have nothing to do with cartoon cuddliness. The real thing has long been associated with plague epidemics for good reason; rats are carriers of disease and their presence puts humans’ health at risk.

• • Toxoplasmosis is a disease that affects the fetuses of pregnant women and is especially dangerous for immunocompromised persons.
  • Leptospirosis is contracted through rat urine and causes diarrhea and vomiting.
  • Streptobacillosis causes fever after a rat bite; it is less common in modern times.
  • Murine typhus and allergies are caused by rat fleas, ticks and mites.

It generally takes two to four weeks to fully eliminate a rat colony. This is due to rats’ natural wariness, which can take several days before they approach a new trap or bait. Initial results are usually visible within the first week, but a follow-up visit remains essential to confirm complete eradication and adjust treatment if needed.

Rat infestations usually come via the sewers and pipes, which is where our rats exterminators begin their inspection. Depending on the extent of the infestation, we favour traps, baits or professional poisons. Our strategy always aims to prevent rats from dying inside your property, as the smell of a dead rat is particularly unpleasant and hard to locate within walls. See our “How our rats exterminators respond” section above for the full details, from inspection to final caulking.

The cost of rats extermination varies depending on the extent of the infestation, the accessibility of the premises and the method used. Rather than imposing a standard package, we prepare every quote after a detailed inspection of your property, in Laval and throughout Greater Montreal. This assessment is completely free and without obligation.

Our rat exterminators also offer a home sealing service to block holes and seal off any tiny or large openings through which rats or other rodents can pass. We install wire mesh on rainwater drain pipes and ventilation vents, and we block any cracks and gaps with cement or other sealants.